chore: go mod vendor

2025-10-04 21:51:02 +00:00 · 2023-01-09 20:44:55 +08:00 · 2023-01-09 20:44:55 +08:00 · 90fdae322f
commit 90fdae322f
parent f93670d9ae
429 changed files with 88019 additions and 123699 deletions
--- a/vendor/github.com/go-chi/chi/.travis.yml
+++ b/vendor/github.com/go-chi/chi/.travis.yml
@ -1,18 +0,0 @@
-language: go
-
-go:
-  - 1.10.x
-  - 1.11.x
-  - 1.12.x
-
-script:
-  - go get -d -t ./...
-  - go vet ./...
-  - go test ./...
-  - >
-    go_version=$(go version);
-    if [ ${go_version:13:4} = "1.12" ]; then
-      go get -u golang.org/x/tools/cmd/goimports;
-      goimports -d -e ./ | grep '.*' && { echo; echo "Aborting due to non-empty goimports output."; exit 1; } || :;
-    fi
-
--- a/vendor/github.com/go-chi/chi/CHANGELOG.md
+++ b/vendor/github.com/go-chi/chi/CHANGELOG.md
@ -1,5 +1,135 @@
 # Changelog

+## v1.5.4 (2021-02-27)
+
+- Undo prior retraction in v1.5.3 as we prepare for v5.0.0 release
+- History of changes: see https://github.com/go-chi/chi/compare/v1.5.3...v1.5.4
+
+
+## v1.5.3 (2021-02-21)
+
+- Update go.mod to go 1.16 with new retract directive marking all versions without prior go.mod support
+- History of changes: see https://github.com/go-chi/chi/compare/v1.5.2...v1.5.3
+
+
+## v1.5.2 (2021-02-10)
+
+- Reverting allocation optimization as a precaution as go test -race fails.
+- Minor improvements, see history below
+- History of changes: see https://github.com/go-chi/chi/compare/v1.5.1...v1.5.2
+
+
+## v1.5.1 (2020-12-06)
+
+- Performance improvement: removing 1 allocation by foregoing context.WithValue, thank you @bouk for
+  your contribution (https://github.com/go-chi/chi/pull/555). Note: new benchmarks posted in README.
+- `middleware.CleanPath`: new middleware that clean's request path of double slashes
+- deprecate & remove `chi.ServerBaseContext` in favour of stdlib `http.Server#BaseContext`
+- plus other tiny improvements, see full commit history below
+- History of changes: see https://github.com/go-chi/chi/compare/v4.1.2...v1.5.1
+
+
+## v1.5.0 (2020-11-12) - now with go.mod support
+
+`chi` dates back to 2016 with it's original implementation as one of the first routers to adopt the newly introduced
+context.Context api to the stdlib -- set out to design a router that is faster, more modular and simpler than anything
+else out there -- while not introducing any custom handler types or dependencies. Today, `chi` still has zero dependencies,
+and in many ways is future proofed from changes, given it's minimal nature. Between versions, chi's iterations have been very
+incremental, with the architecture and api being the same today as it was originally designed in 2016. For this reason it 
+makes chi a pretty easy project to maintain, as well thanks to the many amazing community contributions over the years
+to who all help make chi better (total of 86 contributors to date -- thanks all!).
+
+Chi has been an labour of love, art and engineering, with the goals to offer beautiful ergonomics, flexibility, performance
+and simplicity when building HTTP services with Go. I've strived to keep the router very minimal in surface area / code size,
+and always improving the code wherever possible -- and as of today the `chi` package is just 1082 lines of code (not counting
+middlewares, which are all optional). As well, I don't have the exact metrics, but from my analysis and email exchanges from
+companies and developers, chi is used by thousands of projects around the world -- thank you all as there is no better form of
+joy for me than to have art I had started be helpful and enjoyed by others. And of course I use chi in all of my own projects too :)
+
+For me, the asthetics of chi's code and usage are very important. With the introduction of Go's module support 
+(which I'm a big fan of), chi's past versioning scheme choice to v2, v3 and v4 would mean I'd require the import path
+of "github.com/go-chi/chi/v4", leading to the lengthy discussion at https://github.com/go-chi/chi/issues/462.
+Haha, to some, you may be scratching your head why I've spent > 1 year stalling to adopt "/vXX" convention in the import
+path -- which isn't horrible in general -- but for chi, I'm unable to accept it as I strive for perfection in it's API design,
+aesthetics and simplicity. It just doesn't feel good to me given chi's simple nature -- I do not foresee a "v5" or "v6",
+and upgrading between versions in the future will also be just incremental.
+
+I do understand versioning is a part of the API design as well, which is why the solution for a while has been to "do nothing",
+as Go supports both old and new import paths with/out go.mod. However, now that Go module support has had time to iron out kinks and
+is adopted everywhere, it's time for chi to get with the times. Luckily, I've discovered a path forward that will make me happy,
+while also not breaking anyone's app who adopted a prior versioning from tags in v2/v3/v4. I've made an experimental release of
+v1.5.0 with go.mod silently, and tested it with new and old projects, to ensure the developer experience is preserved, and it's
+largely unnoticed. Fortunately, Go's toolchain will check the tags of a repo and consider the "latest" tag the one with go.mod.
+However, you can still request a specific older tag such as v4.1.2, and everything will "just work". But new users can just
+`go get github.com/go-chi/chi` or `go get github.com/go-chi/chi@latest` and they will get the latest version which contains
+go.mod support, which is v1.5.0+. `chi` will not change very much over the years, just like it hasn't changed much from 4 years ago.
+Therefore, we will stay on v1.x from here on, starting from v1.5.0. Any breaking changes will bump a "minor" release and
+backwards-compatible improvements/fixes will bump a "tiny" release.
+
+For existing projects who want to upgrade to the latest go.mod version, run: `go get -u github.com/go-chi/chi@v1.5.0`,
+which will get you on the go.mod version line (as Go's mod cache may still remember v4.x). Brand new systems can run
+`go get -u github.com/go-chi/chi` or `go get -u github.com/go-chi/chi@latest` to install chi, which will install v1.5.0+
+built with go.mod support.
+
+My apologies to the developers who will disagree with the decisions above, but, hope you'll try it and see it's a very
+minor request which is backwards compatible and won't break your existing installations.
+
+Cheers all, happy coding!
+
+
+---
+
+
+## v4.1.2 (2020-06-02)
+
+- fix that handles MethodNotAllowed with path variables, thank you @caseyhadden for your contribution
+- fix to replace nested wildcards correctly in RoutePattern, thank you @@unmultimedio for your contribution
+- History of changes: see https://github.com/go-chi/chi/compare/v4.1.1...v4.1.2
+
+
+## v4.1.1 (2020-04-16)
+
+- fix for issue https://github.com/go-chi/chi/issues/411 which allows for overlapping regexp
+  route to the correct handler through a recursive tree search, thanks to @Jahaja for the PR/fix!
+- new middleware.RouteHeaders as a simple router for request headers with wildcard support
+- History of changes: see https://github.com/go-chi/chi/compare/v4.1.0...v4.1.1
+
+
+## v4.1.0 (2020-04-1)
+
+- middleware.LogEntry: Write method on interface now passes the response header
+  and an extra interface type useful for custom logger implementations.
+- middleware.WrapResponseWriter: minor fix
+- middleware.Recoverer: a bit prettier
+- History of changes: see https://github.com/go-chi/chi/compare/v4.0.4...v4.1.0
+
+## v4.0.4 (2020-03-24)
+
+- middleware.Recoverer: new pretty stack trace printing (https://github.com/go-chi/chi/pull/496)
+- a few minor improvements and fixes
+- History of changes: see https://github.com/go-chi/chi/compare/v4.0.3...v4.0.4
+
+
+## v4.0.3 (2020-01-09)
+
+- core: fix regexp routing to include default value when param is not matched
+- middleware: rewrite of middleware.Compress
+- middleware: suppress http.ErrAbortHandler in middleware.Recoverer
+- History of changes: see https://github.com/go-chi/chi/compare/v4.0.2...v4.0.3
+
+
+## v4.0.2 (2019-02-26)
+
+- Minor fixes
+- History of changes: see https://github.com/go-chi/chi/compare/v4.0.1...v4.0.2
+
+
+## v4.0.1 (2019-01-21)
+
+- Fixes issue with compress middleware: #382 #385
+- History of changes: see https://github.com/go-chi/chi/compare/v4.0.0...v4.0.1
+
+
 ## v4.0.0 (2019-01-10)

 - chi v4 requires Go 1.10.3+ (or Go 1.9.7+) - we have deprecated support for Go 1.7 and 1.8
--- a/vendor/github.com/go-chi/chi/Makefile
+++ b/vendor/github.com/go-chi/chi/Makefile
@ -0,0 +1,14 @@
+all:
+	@echo "**********************************************************"
+	@echo "**                    chi build tool                    **"
+	@echo "**********************************************************"
+
+
+test:
+	go clean -testcache && $(MAKE) test-router && $(MAKE) test-middleware
+
+test-router:
+	go test -race -v .
+
+test-middleware:
+	go test -race -v ./middleware
--- a/vendor/github.com/go-chi/chi/README.md
+++ b/vendor/github.com/go-chi/chi/README.md
@ -15,7 +15,8 @@ public API service, which in turn powers all of our client-side applications.
 The key considerations of chi's design are: project structure, maintainability, standard http
 handlers (stdlib-only), developer productivity, and deconstructing a large system into many small
 parts. The core router `github.com/go-chi/chi` is quite small (less than 1000 LOC), but we've also
-included some useful/optional subpackages: [middleware](/middleware), [render](https://github.com/go-chi/render) and [docgen](https://github.com/go-chi/docgen). We hope you enjoy it too!
+included some useful/optional subpackages: [middleware](/middleware), [render](https://github.com/go-chi/render)
+and [docgen](https://github.com/go-chi/docgen). We hope you enjoy it too!

 ## Install

@ -27,10 +28,11 @@ included some useful/optional subpackages: [middleware](/middleware), [render](h
 * **Lightweight** - cloc'd in ~1000 LOC for the chi router
 * **Fast** - yes, see [benchmarks](#benchmarks)
 * **100% compatible with net/http** - use any http or middleware pkg in the ecosystem that is also compatible with `net/http`
-* **Designed for modular/composable APIs** - middlewares, inline middlewares, route groups and subrouter mounting
-* **Context control** - built on new `context` package, providing value chaining, cancelations and timeouts
+* **Designed for modular/composable APIs** - middlewares, inline middlewares, route groups and sub-router mounting
+* **Context control** - built on new `context` package, providing value chaining, cancellations and timeouts
 * **Robust** - in production at Pressly, CloudFlare, Heroku, 99Designs, and many others (see [discussion](https://github.com/go-chi/chi/issues/91))
 * **Doc generation** - `docgen` auto-generates routing documentation from your source to JSON or Markdown
+* **Go.mod support** - v1.x of chi (starting from v1.5.0), now has go.mod support (see [CHANGELOG](https://github.com/go-chi/chi/blob/master/CHANGELOG.md#v150-2020-11-12---now-with-gomod-support))
 * **No external dependencies** - plain ol' Go stdlib + net/http


@ -46,11 +48,14 @@ package main

 import (
 	"net/http"
+
 	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/middleware"
 )

 func main() {
 	r := chi.NewRouter()
+	r.Use(middleware.Logger)
 	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
 		w.Write([]byte("welcome"))
 	})
@ -165,7 +170,7 @@ func AdminOnly(next http.Handler) http.Handler {
 ```


-## Router design
+## Router interface

 chi's router is based on a kind of [Patricia Radix trie](https://en.wikipedia.org/wiki/Radix_tree).
 The router is fully compatible with `net/http`.
@ -179,7 +184,7 @@ type Router interface {
 	http.Handler
 	Routes

-	// Use appends one of more middlewares onto the Router stack.
+	// Use appends one or more middlewares onto the Router stack.
 	Use(middlewares ...func(http.Handler) http.Handler)

 	// With adds inline middlewares for an endpoint handler.
@ -254,15 +259,24 @@ about them, which means the router and all the tooling is designed to be compati
 friendly with any middleware in the community. This offers much better extensibility and reuse
 of packages and is at the heart of chi's purpose.

-Here is an example of a standard net/http middleware handler using the new request context
-available in Go. This middleware sets a hypothetical user identifier on the request
+Here is an example of a standard net/http middleware where we assign a context key `"user"`
+the value of `"123"`. This middleware sets a hypothetical user identifier on the request
 context and calls the next handler in the chain.

 ```go
 // HTTP middleware setting a value on the request context
 func MyMiddleware(next http.Handler) http.Handler {
  return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+    // create new context from `r` request context, and assign key `"user"`
+    // to value of `"123"`
    ctx := context.WithValue(r.Context(), "user", "123")
+
+    // call the next handler in the chain, passing the response writer and
+    // the updated request object with the new context value.
+    //
+    // note: context.Context values are nested, so any previously set
+    // values will be accessible as well, and the new `"user"` key
+    // will be accessible from this point forward.
    next.ServeHTTP(w, r.WithContext(ctx))
  })
 }
@ -278,7 +292,11 @@ the user sending an authenticated request, validated+set by a previous middlewar
 ```go
 // HTTP handler accessing data from the request context.
 func MyRequestHandler(w http.ResponseWriter, r *http.Request) {
+  // here we read from the request context and fetch out `"user"` key set in
+  // the MyMiddleware example above.
  user := r.Context().Value("user").(string)
+
+  // respond to the client
  w.Write([]byte(fmt.Sprintf("hi %s", user)))
 }
 ```
@ -293,11 +311,15 @@ are able to access the same information.
 ```go
 // HTTP handler accessing the url routing parameters.
 func MyRequestHandler(w http.ResponseWriter, r *http.Request) {
-  userID := chi.URLParam(r, "userID") // from a route like /users/{userID}
+  // fetch the url parameter `"userID"` from the request of a matching
+  // routing pattern. An example routing pattern could be: /users/{userID}
+  userID := chi.URLParam(r, "userID")

+  // fetch `"key"` from the request context
  ctx := r.Context()
  key := ctx.Value("key").(string)

+  // respond to the client
  w.Write([]byte(fmt.Sprintf("hi %v, %v", userID, key)))
 }
 ```
@ -311,29 +333,72 @@ with `net/http` can be used with chi's mux.

 ### Core middlewares

-----------------------------------------------------------------------------------------------------------
-| chi/middleware Handler | description                                                                     |
-|:----------------------|:---------------------------------------------------------------------------------
-| AllowContentType      | Explicit whitelist of accepted request Content-Types                            |
-| Compress              | Gzip compression for clients that accept compressed responses                   |
-| GetHead               | Automatically route undefined HEAD requests to GET handlers                     |
-| Heartbeat             | Monitoring endpoint to check the servers pulse                                  |
-| Logger                | Logs the start and end of each request with the elapsed processing time         |
-| NoCache               | Sets response headers to prevent clients from caching                           |
-| Profiler              | Easily attach net/http/pprof to your routers                                    |
-| RealIP                | Sets a http.Request's RemoteAddr to either X-Forwarded-For or X-Real-IP         |
-| Recoverer             | Gracefully absorb panics and prints the stack trace                             |
-| RequestID             | Injects a request ID into the context of each request                           |
-| RedirectSlashes       | Redirect slashes on routing paths                                               |
-| SetHeader             | Short-hand middleware to set a response header key/value                        |
-| StripSlashes          | Strip slashes on routing paths                                                  |
-| Throttle              | Puts a ceiling on the number of concurrent requests                             |
-| Timeout               | Signals to the request context when the timeout deadline is reached             |
-| URLFormat             | Parse extension from url and put it on request context                          |
-| WithValue             | Short-hand middleware to set a key/value on the request context                 |
-----------------------------------------------------------------------------------------------------------
+----------------------------------------------------------------------------------------------------
+| chi/middleware Handler | description                                                             |
+| :--------------------- | :---------------------------------------------------------------------- |
+| [AllowContentEncoding] | Enforces a whitelist of request Content-Encoding headers                |
+| [AllowContentType]     | Explicit whitelist of accepted request Content-Types                    |
+| [BasicAuth]            | Basic HTTP authentication                                               |
+| [Compress]             | Gzip compression for clients that accept compressed responses           |
+| [ContentCharset]       | Ensure charset for Content-Type request headers                         |
+| [CleanPath]            | Clean double slashes from request path                                  |
+| [GetHead]              | Automatically route undefined HEAD requests to GET handlers             |
+| [Heartbeat]            | Monitoring endpoint to check the servers pulse                          |
+| [Logger]               | Logs the start and end of each request with the elapsed processing time |
+| [NoCache]              | Sets response headers to prevent clients from caching                   |
+| [Profiler]             | Easily attach net/http/pprof to your routers                            |
+| [RealIP]               | Sets a http.Request's RemoteAddr to either X-Forwarded-For or X-Real-IP |
+| [Recoverer]            | Gracefully absorb panics and prints the stack trace                     |
+| [RequestID]            | Injects a request ID into the context of each request                   |
+| [RedirectSlashes]      | Redirect slashes on routing paths                                       |
+| [RouteHeaders]         | Route handling for request headers                                      |
+| [SetHeader]            | Short-hand middleware to set a response header key/value                |
+| [StripSlashes]         | Strip slashes on routing paths                                          |
+| [Throttle]             | Puts a ceiling on the number of concurrent requests                     |
+| [Timeout]              | Signals to the request context when the timeout deadline is reached     |
+| [URLFormat]            | Parse extension from url and put it on request context                  |
+| [WithValue]            | Short-hand middleware to set a key/value on the request context         |
+----------------------------------------------------------------------------------------------------

-### Auxiliary middlewares & packages
+[AllowContentEncoding]: https://pkg.go.dev/github.com/go-chi/chi/middleware#AllowContentEncoding
+[AllowContentType]: https://pkg.go.dev/github.com/go-chi/chi/middleware#AllowContentType
+[BasicAuth]: https://pkg.go.dev/github.com/go-chi/chi/middleware#BasicAuth
+[Compress]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Compress
+[ContentCharset]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ContentCharset
+[CleanPath]: https://pkg.go.dev/github.com/go-chi/chi/middleware#CleanPath
+[GetHead]: https://pkg.go.dev/github.com/go-chi/chi/middleware#GetHead
+[GetReqID]: https://pkg.go.dev/github.com/go-chi/chi/middleware#GetReqID
+[Heartbeat]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Heartbeat
+[Logger]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Logger
+[NoCache]: https://pkg.go.dev/github.com/go-chi/chi/middleware#NoCache
+[Profiler]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Profiler
+[RealIP]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RealIP
+[Recoverer]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Recoverer
+[RedirectSlashes]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RedirectSlashes
+[RequestLogger]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RequestLogger
+[RequestID]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RequestID
+[RouteHeaders]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RouteHeaders
+[SetHeader]: https://pkg.go.dev/github.com/go-chi/chi/middleware#SetHeader
+[StripSlashes]: https://pkg.go.dev/github.com/go-chi/chi/middleware#StripSlashes
+[Throttle]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Throttle
+[ThrottleBacklog]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleBacklog
+[ThrottleWithOpts]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleWithOpts
+[Timeout]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Timeout
+[URLFormat]: https://pkg.go.dev/github.com/go-chi/chi/middleware#URLFormat
+[WithLogEntry]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WithLogEntry
+[WithValue]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WithValue
+[Compressor]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Compressor
+[DefaultLogFormatter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#DefaultLogFormatter
+[EncoderFunc]: https://pkg.go.dev/github.com/go-chi/chi/middleware#EncoderFunc
+[HeaderRoute]: https://pkg.go.dev/github.com/go-chi/chi/middleware#HeaderRoute
+[HeaderRouter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#HeaderRouter
+[LogEntry]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LogEntry
+[LogFormatter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LogFormatter
+[LoggerInterface]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LoggerInterface
+[ThrottleOpts]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleOpts
+[WrapResponseWriter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WrapResponseWriter
+
+### Extra middlewares & packages

 Please see https://github.com/go-chi for additional packages.

@ -344,13 +409,13 @@ Please see https://github.com/go-chi for additional packages.
 | [docgen](https://github.com/go-chi/docgen)         | Print chi.Router routes at runtime                          |
 | [jwtauth](https://github.com/go-chi/jwtauth)       | JWT authentication                                          |
 | [hostrouter](https://github.com/go-chi/hostrouter) | Domain/host based request routing                           |
-| [httpcoala](https://github.com/go-chi/httpcoala)   | HTTP request coalescer                                      |
-| [chi-authz](https://github.com/casbin/chi-authz)   | Request ACL via https://github.com/hsluoyz/casbin           |
-| [phi](https://github.com/fate-lovely/phi)          | Port chi to [fasthttp](https://github.com/valyala/fasthttp) |
+| [httplog](https://github.com/go-chi/httplog)       | Small but powerful structured HTTP request logging          |
+| [httprate](https://github.com/go-chi/httprate)     | HTTP request rate limiter                                   |
+| [httptracer](https://github.com/go-chi/httptracer) | HTTP request performance tracing library                    |
+| [httpvcr](https://github.com/go-chi/httpvcr)       | Write deterministic tests for external sources              |
+| [stampede](https://github.com/go-chi/stampede)     | HTTP request coalescer                                      |
 --------------------------------------------------------------------------------------------------------------------

-please [submit a PR](./CONTRIBUTING.md) if you'd like to include a link to a chi-compatible middleware
-

 ## context?

@ -369,25 +434,25 @@ and..

 The benchmark suite: https://github.com/pkieltyka/go-http-routing-benchmark

-Results as of Jan 9, 2019 with Go 1.11.4 on Linux X1 Carbon laptop
+Results as of Nov 29, 2020 with Go 1.15.5 on Linux AMD 3950x

 ```shell
-BenchmarkChi_Param            3000000         475 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_Param5           2000000         696 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_Param20          1000000        1275 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_ParamWrite       3000000         505 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GithubStatic     3000000         508 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GithubParam      2000000         669 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GithubAll          10000      134627 ns/op     87699 B/op    609 allocs/op
-BenchmarkChi_GPlusStatic      3000000         402 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GPlusParam       3000000         500 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GPlus2Params     3000000         586 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_GPlusAll          200000        7237 ns/op      5616 B/op     39 allocs/op
-BenchmarkChi_ParseStatic      3000000         408 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_ParseParam       3000000         488 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_Parse2Params     3000000         551 ns/op       432 B/op      3 allocs/op
-BenchmarkChi_ParseAll          100000       13508 ns/op     11232 B/op     78 allocs/op
-BenchmarkChi_StaticAll          20000       81933 ns/op     67826 B/op    471 allocs/op
+BenchmarkChi_Param          	3075895	        384 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_Param5         	2116603	        566 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_Param20        	 964117	       1227 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_ParamWrite     	2863413	        420 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GithubStatic   	3045488	        395 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GithubParam    	2204115	        540 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GithubAll      	  10000	     113811 ns/op	    81203 B/op    406 allocs/op
+BenchmarkChi_GPlusStatic    	3337485	        359 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GPlusParam     	2825853	        423 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GPlus2Params   	2471697	        483 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_GPlusAll       	 194220	       5950 ns/op	     5200 B/op     26 allocs/op
+BenchmarkChi_ParseStatic    	3365324	        356 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_ParseParam     	2976614	        404 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_Parse2Params   	2638084	        439 ns/op	      400 B/op      2 allocs/op
+BenchmarkChi_ParseAll       	 109567	      11295 ns/op	    10400 B/op     52 allocs/op
+BenchmarkChi_StaticAll      	  16846	      71308 ns/op	    62802 B/op    314 allocs/op
 ```

 Comparison with other routers: https://gist.github.com/pkieltyka/123032f12052520aaccab752bd3e78cc
@ -398,6 +463,17 @@ on the duplicated (alloc'd) request and returns it the new request object. This
 how setting context on a request in Go works.


+## Go module support & note on chi's versioning
+
+* Go.mod support means we reset our versioning starting from v1.5 (see [CHANGELOG](https://github.com/go-chi/chi/blob/master/CHANGELOG.md#v150-2020-11-12---now-with-gomod-support))
+* All older tags are preserved, are backwards-compatible and will "just work" as they
+* Brand new systems can run `go get -u github.com/go-chi/chi` as normal, or `go get -u github.com/go-chi/chi@latest`
+to install chi, which will install v1.x+ built with go.mod support, starting from v1.5.0.
+* For existing projects who want to upgrade to the latest go.mod version, run: `go get -u github.com/go-chi/chi@v1.5.0`,
+which will get you on the go.mod version line (as Go's mod cache may still remember v4.x).
+* Any breaking changes will bump a "minor" release and backwards-compatible improvements/fixes will bump a "tiny" release.
+
+
 ## Credits

 * Carl Jackson for https://github.com/zenazn/goji
@ -412,18 +488,15 @@ We'll be more than happy to see [your contributions](./CONTRIBUTING.md)!
 ## Beyond REST

 chi is just a http router that lets you decompose request handling into many smaller layers.
-Many companies including Pressly.com (of course) use chi to write REST services for their public
-APIs. But, REST is just a convention for managing state via HTTP, and there's a lot of other pieces
-required to write a complete client-server system or network of microservices.
+Many companies use chi to write REST services for their public APIs. But, REST is just a convention
+for managing state via HTTP, and there's a lot of other pieces required to write a complete client-server
+system or network of microservices.

-Looking ahead beyond REST, I also recommend some newer works in the field coming from
-[gRPC](https://github.com/grpc/grpc-go), [NATS](https://nats.io), [go-kit](https://github.com/go-kit/kit)
-and even [graphql](https://github.com/graphql-go/graphql). They're all pretty cool with their
-own unique approaches and benefits. Specifically, I'd look at gRPC since it makes client-server
-communication feel like a single program on a single computer, no need to hand-write a client library
-and the request/response payloads are typed contracts. NATS is pretty amazing too as a super
-fast and lightweight pub-sub transport that can speak protobufs, with nice service discovery -
-an excellent combination with gRPC.
+Looking beyond REST, I also recommend some newer works in the field:
+* [webrpc](https://github.com/webrpc/webrpc) - Web-focused RPC client+server framework with code-gen
+* [gRPC](https://github.com/grpc/grpc-go) - Google's RPC framework via protobufs
+* [graphql](https://github.com/99designs/gqlgen) - Declarative query language
+* [NATS](https://nats.io) - lightweight pub-sub


 ## License
@ -432,7 +505,7 @@ Copyright (c) 2015-present [Peter Kieltyka](https://github.com/pkieltyka)

 Licensed under [MIT License](./LICENSE)

-[GoDoc]: https://godoc.org/github.com/go-chi/chi
+[GoDoc]: https://pkg.go.dev/github.com/go-chi/chi?tab=versions
 [GoDoc Widget]: https://godoc.org/github.com/go-chi/chi?status.svg
 [Travis]: https://travis-ci.org/go-chi/chi
 [Travis Widget]: https://travis-ci.org/go-chi/chi.svg?branch=master
--- a/vendor/github.com/go-chi/chi/chi.go
+++ b/vendor/github.com/go-chi/chi/chi.go
@ -1,7 +1,7 @@
 //
 // Package chi is a small, idiomatic and composable router for building HTTP services.
 //
-// chi requires Go 1.7 or newer.
+// chi requires Go 1.10 or newer.
 //
 // Example:
 //  package main
@ -68,7 +68,7 @@ type Router interface {
 	http.Handler
 	Routes

-	// Use appends one of more middlewares onto the Router stack.
+	// Use appends one or more middlewares onto the Router stack.
 	Use(middlewares ...func(http.Handler) http.Handler)

 	// With adds inline middlewares for an endpoint handler.
--- a/vendor/github.com/go-chi/chi/context.go
+++ b/vendor/github.com/go-chi/chi/context.go
@ -2,11 +2,38 @@ package chi

 import (
 	"context"
-	"net"
 	"net/http"
 	"strings"
 )

+// URLParam returns the url parameter from a http.Request object.
+func URLParam(r *http.Request, key string) string {
+	if rctx := RouteContext(r.Context()); rctx != nil {
+		return rctx.URLParam(key)
+	}
+	return ""
+}
+
+// URLParamFromCtx returns the url parameter from a http.Request Context.
+func URLParamFromCtx(ctx context.Context, key string) string {
+	if rctx := RouteContext(ctx); rctx != nil {
+		return rctx.URLParam(key)
+	}
+	return ""
+}
+
+// RouteContext returns chi's routing Context object from a
+// http.Request Context.
+func RouteContext(ctx context.Context) *Context {
+	val, _ := ctx.Value(RouteCtxKey).(*Context)
+	return val
+}
+
+// NewRouteContext returns a new routing Context object.
+func NewRouteContext() *Context {
+	return &Context{}
+}
+
 var (
 	// RouteCtxKey is the context.Context key to store the request context.
 	RouteCtxKey = &contextKey{"RouteContext"}
@ -44,11 +71,11 @@ type Context struct {

 	// methodNotAllowed hint
 	methodNotAllowed bool
-}

-// NewRouteContext returns a new routing Context object.
-func NewRouteContext() *Context {
-	return &Context{}
+	// parentCtx is the parent of this one, for using Context as a
+	// context.Context directly. This is an optimization that saves
+	// 1 allocation.
+	parentCtx context.Context
 }

 // Reset a routing context to its initial state.
@ -64,6 +91,7 @@ func (x *Context) Reset() {
 	x.routeParams.Keys = x.routeParams.Keys[:0]
 	x.routeParams.Values = x.routeParams.Values[:0]
 	x.methodNotAllowed = false
+	x.parentCtx = nil
 }

 // URLParam returns the corresponding URL parameter value from the request
@ -93,29 +121,17 @@ func (x *Context) URLParam(key string) string {
 //   }
 func (x *Context) RoutePattern() string {
 	routePattern := strings.Join(x.RoutePatterns, "")
-	return strings.Replace(routePattern, "/*/", "/", -1)
+	return replaceWildcards(routePattern)
 }

-// RouteContext returns chi's routing Context object from a
-// http.Request Context.
-func RouteContext(ctx context.Context) *Context {
-	return ctx.Value(RouteCtxKey).(*Context)
-}
-
-// URLParam returns the url parameter from a http.Request object.
-func URLParam(r *http.Request, key string) string {
-	if rctx := RouteContext(r.Context()); rctx != nil {
-		return rctx.URLParam(key)
+// replaceWildcards takes a route pattern and recursively replaces all
+// occurrences of "/*/" to "/".
+func replaceWildcards(p string) string {
+	if strings.Contains(p, "/*/") {
+		return replaceWildcards(strings.Replace(p, "/*/", "/", -1))
 	}
-	return ""
-}

-// URLParamFromCtx returns the url parameter from a http.Request Context.
-func URLParamFromCtx(ctx context.Context, key string) string {
-	if rctx := RouteContext(ctx); rctx != nil {
-		return rctx.URLParam(key)
-	}
-	return ""
+	return p
 }

 // RouteParams is a structure to track URL routing parameters efficiently.
@ -125,28 +141,8 @@ type RouteParams struct {

 // Add will append a URL parameter to the end of the route param
 func (s *RouteParams) Add(key, value string) {
-	(*s).Keys = append((*s).Keys, key)
-	(*s).Values = append((*s).Values, value)
-}
-
-// ServerBaseContext wraps an http.Handler to set the request context to the
-// `baseCtx`.
-func ServerBaseContext(baseCtx context.Context, h http.Handler) http.Handler {
-	fn := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		ctx := r.Context()
-		baseCtx := baseCtx
-
-		// Copy over default net/http server context keys
-		if v, ok := ctx.Value(http.ServerContextKey).(*http.Server); ok {
-			baseCtx = context.WithValue(baseCtx, http.ServerContextKey, v)
-		}
-		if v, ok := ctx.Value(http.LocalAddrContextKey).(net.Addr); ok {
-			baseCtx = context.WithValue(baseCtx, http.LocalAddrContextKey, v)
-		}
-
-		h.ServeHTTP(w, r.WithContext(baseCtx))
-	})
-	return fn
+	s.Keys = append(s.Keys, key)
+	s.Values = append(s.Values, value)
 }

 // contextKey is a value for use with context.WithValue. It's used as
--- a/vendor/github.com/go-chi/chi/middleware/basic_auth.go
+++ b/vendor/github.com/go-chi/chi/middleware/basic_auth.go
@ -0,0 +1,33 @@
+package middleware
+
+import (
+	"crypto/subtle"
+	"fmt"
+	"net/http"
+)
+
+// BasicAuth implements a simple middleware handler for adding basic http auth to a route.
+func BasicAuth(realm string, creds map[string]string) func(next http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			user, pass, ok := r.BasicAuth()
+			if !ok {
+				basicAuthFailed(w, realm)
+				return
+			}
+
+			credPass, credUserOk := creds[user]
+			if !credUserOk || subtle.ConstantTimeCompare([]byte(pass), []byte(credPass)) != 1 {
+				basicAuthFailed(w, realm)
+				return
+			}
+
+			next.ServeHTTP(w, r)
+		})
+	}
+}
+
+func basicAuthFailed(w http.ResponseWriter, realm string) {
+	w.Header().Add("WWW-Authenticate", fmt.Sprintf(`Basic realm="%s"`, realm))
+	w.WriteHeader(http.StatusUnauthorized)
+}
--- a/vendor/github.com/go-chi/chi/middleware/clean_path.go
+++ b/vendor/github.com/go-chi/chi/middleware/clean_path.go
@ -0,0 +1,28 @@
+package middleware
+
+import (
+	"net/http"
+	"path"
+
+	"github.com/go-chi/chi"
+)
+
+// CleanPath middleware will clean out double slash mistakes from a user's request path.
+// For example, if a user requests /users//1 or //users////1 will both be treated as: /users/1
+func CleanPath(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		rctx := chi.RouteContext(r.Context())
+
+		routePath := rctx.RoutePath
+		if routePath == "" {
+			if r.URL.RawPath != "" {
+				routePath = r.URL.RawPath
+			} else {
+				routePath = r.URL.Path
+			}
+			rctx.RoutePath = path.Clean(routePath)
+		}
+
+		next.ServeHTTP(w, r)
+	})
+}
--- a/vendor/github.com/go-chi/chi/middleware/compress.go
+++ b/vendor/github.com/go-chi/chi/middleware/compress.go
@ -5,26 +5,101 @@ import (
 	"compress/flate"
 	"compress/gzip"
 	"errors"
+	"fmt"
 	"io"
+	"io/ioutil"
 	"net"
 	"net/http"
 	"strings"
+	"sync"
 )

-var encoders = map[string]EncoderFunc{}
+var defaultCompressibleContentTypes = []string{
+	"text/html",
+	"text/css",
+	"text/plain",
+	"text/javascript",
+	"application/javascript",
+	"application/x-javascript",
+	"application/json",
+	"application/atom+xml",
+	"application/rss+xml",
+	"image/svg+xml",
+}

-var encodingPrecedence = []string{"br", "gzip", "deflate"}
+// Compress is a middleware that compresses response
+// body of a given content types to a data format based
+// on Accept-Encoding request header. It uses a given
+// compression level.
+//
+// NOTE: make sure to set the Content-Type header on your response
+// otherwise this middleware will not compress the response body. For ex, in
+// your handler you should set w.Header().Set("Content-Type", http.DetectContentType(yourBody))
+// or set it manually.
+//
+// Passing a compression level of 5 is sensible value
+func Compress(level int, types ...string) func(next http.Handler) http.Handler {
+	compressor := NewCompressor(level, types...)
+	return compressor.Handler
+}

-func init() {
+// Compressor represents a set of encoding configurations.
+type Compressor struct {
+	level int // The compression level.
+	// The mapping of encoder names to encoder functions.
+	encoders map[string]EncoderFunc
+	// The mapping of pooled encoders to pools.
+	pooledEncoders map[string]*sync.Pool
+	// The set of content types allowed to be compressed.
+	allowedTypes     map[string]struct{}
+	allowedWildcards map[string]struct{}
+	// The list of encoders in order of decreasing precedence.
+	encodingPrecedence []string
+}
+
+// NewCompressor creates a new Compressor that will handle encoding responses.
+//
+// The level should be one of the ones defined in the flate package.
+// The types are the content types that are allowed to be compressed.
+func NewCompressor(level int, types ...string) *Compressor {
+	// If types are provided, set those as the allowed types. If none are
+	// provided, use the default list.
+	allowedTypes := make(map[string]struct{})
+	allowedWildcards := make(map[string]struct{})
+	if len(types) > 0 {
+		for _, t := range types {
+			if strings.Contains(strings.TrimSuffix(t, "/*"), "*") {
+				panic(fmt.Sprintf("middleware/compress: Unsupported content-type wildcard pattern '%s'. Only '/*' supported", t))
+			}
+			if strings.HasSuffix(t, "/*") {
+				allowedWildcards[strings.TrimSuffix(t, "/*")] = struct{}{}
+			} else {
+				allowedTypes[t] = struct{}{}
+			}
+		}
+	} else {
+		for _, t := range defaultCompressibleContentTypes {
+			allowedTypes[t] = struct{}{}
+		}
+	}
+
+	c := &Compressor{
+		level:            level,
+		encoders:         make(map[string]EncoderFunc),
+		pooledEncoders:   make(map[string]*sync.Pool),
+		allowedTypes:     allowedTypes,
+		allowedWildcards: allowedWildcards,
+	}
+
+	// Set the default encoders.  The precedence order uses the reverse
+	// ordering that the encoders were added. This means adding new encoders
+	// will move them to the front of the order.
+	//
 	// TODO:
 	// lzma: Opera.
 	// sdch: Chrome, Android. Gzip output + dictionary header.
 	// br:   Brotli, see https://github.com/go-chi/chi/pull/326

-	// TODO: Exception for old MSIE browsers that can't handle non-HTML?
-	// https://zoompf.com/blog/2012/02/lose-the-wait-http-compression
-	SetEncoder("gzip", encoderGzip)
-
 	// HTTP 1.1 "deflate" (RFC 2616) stands for DEFLATE data (RFC 1951)
 	// wrapped with zlib (RFC 1950). The zlib wrapper uses Adler-32
 	// checksum compared to CRC-32 used in "gzip" and thus is faster.
@ -41,21 +116,20 @@ func init() {
 	//
 	// That's why we prefer gzip over deflate. It's just more reliable
 	// and not significantly slower than gzip.
-	SetEncoder("deflate", encoderDeflate)
+	c.SetEncoder("deflate", encoderDeflate)
+
+	// TODO: Exception for old MSIE browsers that can't handle non-HTML?
+	// https://zoompf.com/blog/2012/02/lose-the-wait-http-compression
+	c.SetEncoder("gzip", encoderGzip)

 	// NOTE: Not implemented, intentionally:
 	// case "compress": // LZW. Deprecated.
 	// case "bzip2":    // Too slow on-the-fly.
 	// case "zopfli":   // Too slow on-the-fly.
 	// case "xz":       // Too slow on-the-fly.
+	return c
 }

-// An EncoderFunc is a function that wraps the provided ResponseWriter with a
-// streaming compression algorithm and returns it.
-//
-// In case of failure, the function should return nil.
-type EncoderFunc func(w http.ResponseWriter, level int) io.Writer
-
 // SetEncoder can be used to set the implementation of a compression algorithm.
 //
 // The encoding should be a standardised identifier. See:
@ -65,12 +139,13 @@ type EncoderFunc func(w http.ResponseWriter, level int) io.Writer
 //
 //  import brotli_enc "gopkg.in/kothar/brotli-go.v0/enc"
 //
-//  middleware.SetEncoder("br", func(w http.ResponseWriter, level int) io.Writer {
+//  compressor := middleware.NewCompressor(5, "text/html")
+//  compressor.SetEncoder("br", func(w http.ResponseWriter, level int) io.Writer {
 //    params := brotli_enc.NewBrotliParams()
 //    params.SetQuality(level)
 //    return brotli_enc.NewBrotliWriter(params, w)
 //  })
-func SetEncoder(encoding string, fn EncoderFunc) {
+func (c *Compressor) SetEncoder(encoding string, fn EncoderFunc) {
 	encoding = strings.ToLower(encoding)
 	if encoding == "" {
 		panic("the encoding can not be empty")
@ -78,118 +153,153 @@ func SetEncoder(encoding string, fn EncoderFunc) {
 	if fn == nil {
 		panic("attempted to set a nil encoder function")
 	}
-	encoders[encoding] = fn

-	var e string
-	for _, v := range encodingPrecedence {
-		if v == encoding {
-			e = v
-		}
+	// If we are adding a new encoder that is already registered, we have to
+	// clear that one out first.
+	if _, ok := c.pooledEncoders[encoding]; ok {
+		delete(c.pooledEncoders, encoding)
+	}
+	if _, ok := c.encoders[encoding]; ok {
+		delete(c.encoders, encoding)
 	}

-	if e == "" {
-		encodingPrecedence = append([]string{e}, encodingPrecedence...)
-	}
-}
-
-var defaultContentTypes = map[string]struct{}{
-	"text/html":                {},
-	"text/css":                 {},
-	"text/plain":               {},
-	"text/javascript":          {},
-	"application/javascript":   {},
-	"application/x-javascript": {},
-	"application/json":         {},
-	"application/atom+xml":     {},
-	"application/rss+xml":      {},
-	"image/svg+xml":            {},
-}
-
-// DefaultCompress is a middleware that compresses response
-// body of predefined content types to a data format based
-// on Accept-Encoding request header. It uses a default
-// compression level.
-func DefaultCompress(next http.Handler) http.Handler {
-	return Compress(flate.DefaultCompression)(next)
-}
-
-// Compress is a middleware that compresses response
-// body of a given content types to a data format based
-// on Accept-Encoding request header. It uses a given
-// compression level.
-//
-// NOTE: make sure to set the Content-Type header on your response
-// otherwise this middleware will not compress the response body. For ex, in
-// your handler you should set w.Header().Set("Content-Type", http.DetectContentType(yourBody))
-// or set it manually.
-func Compress(level int, types ...string) func(next http.Handler) http.Handler {
-	contentTypes := defaultContentTypes
-	if len(types) > 0 {
-		contentTypes = make(map[string]struct{}, len(types))
-		for _, t := range types {
-			contentTypes[t] = struct{}{}
-		}
-	}
-
-	return func(next http.Handler) http.Handler {
-		fn := func(w http.ResponseWriter, r *http.Request) {
-			encoder, encoding := selectEncoder(r.Header)
-
-			cw := &compressResponseWriter{
-				ResponseWriter: w,
-				w:              w,
-				contentTypes:   contentTypes,
-				encoder:        encoder,
-				encoding:       encoding,
-				level:          level,
+	// If the encoder supports Resetting (IoReseterWriter), then it can be pooled.
+	encoder := fn(ioutil.Discard, c.level)
+	if encoder != nil {
+		if _, ok := encoder.(ioResetterWriter); ok {
+			pool := &sync.Pool{
+				New: func() interface{} {
+					return fn(ioutil.Discard, c.level)
+				},
 			}
-			defer cw.Close()
-
-			next.ServeHTTP(cw, r)
+			c.pooledEncoders[encoding] = pool
 		}
-
-		return http.HandlerFunc(fn)
 	}
+	// If the encoder is not in the pooledEncoders, add it to the normal encoders.
+	if _, ok := c.pooledEncoders[encoding]; !ok {
+		c.encoders[encoding] = fn
+	}
+
+	for i, v := range c.encodingPrecedence {
+		if v == encoding {
+			c.encodingPrecedence = append(c.encodingPrecedence[:i], c.encodingPrecedence[i+1:]...)
+		}
+	}
+
+	c.encodingPrecedence = append([]string{encoding}, c.encodingPrecedence...)
 }

-func selectEncoder(h http.Header) (EncoderFunc, string) {
+// Handler returns a new middleware that will compress the response based on the
+// current Compressor.
+func (c *Compressor) Handler(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		encoder, encoding, cleanup := c.selectEncoder(r.Header, w)
+
+		cw := &compressResponseWriter{
+			ResponseWriter:   w,
+			w:                w,
+			contentTypes:     c.allowedTypes,
+			contentWildcards: c.allowedWildcards,
+			encoding:         encoding,
+			compressable:     false, // determined in post-handler
+		}
+		if encoder != nil {
+			cw.w = encoder
+		}
+		// Re-add the encoder to the pool if applicable.
+		defer cleanup()
+		defer cw.Close()
+
+		next.ServeHTTP(cw, r)
+	})
+}
+
+// selectEncoder returns the encoder, the name of the encoder, and a closer function.
+func (c *Compressor) selectEncoder(h http.Header, w io.Writer) (io.Writer, string, func()) {
 	header := h.Get("Accept-Encoding")

 	// Parse the names of all accepted algorithms from the header.
 	accepted := strings.Split(strings.ToLower(header), ",")

 	// Find supported encoder by accepted list by precedence
-	for _, name := range encodingPrecedence {
-		if fn, ok := encoders[name]; ok && matchAcceptEncoding(accepted, name) {
-			return fn, name
+	for _, name := range c.encodingPrecedence {
+		if matchAcceptEncoding(accepted, name) {
+			if pool, ok := c.pooledEncoders[name]; ok {
+				encoder := pool.Get().(ioResetterWriter)
+				cleanup := func() {
+					pool.Put(encoder)
+				}
+				encoder.Reset(w)
+				return encoder, name, cleanup
+
+			}
+			if fn, ok := c.encoders[name]; ok {
+				return fn(w, c.level), name, func() {}
+			}
 		}
+
 	}

 	// No encoder found to match the accepted encoding
-	return nil, ""
+	return nil, "", func() {}
 }

 func matchAcceptEncoding(accepted []string, encoding string) bool {
 	for _, v := range accepted {
-		if strings.Index(v, encoding) >= 0 {
+		if strings.Contains(v, encoding) {
 			return true
 		}
 	}
 	return false
 }

+// An EncoderFunc is a function that wraps the provided io.Writer with a
+// streaming compression algorithm and returns it.
+//
+// In case of failure, the function should return nil.
+type EncoderFunc func(w io.Writer, level int) io.Writer
+
+// Interface for types that allow resetting io.Writers.
+type ioResetterWriter interface {
+	io.Writer
+	Reset(w io.Writer)
+}
+
 type compressResponseWriter struct {
 	http.ResponseWriter
-	w            io.Writer
-	encoder      EncoderFunc
-	encoding     string
-	contentTypes map[string]struct{}
-	level        int
-	wroteHeader  bool
+
+	// The streaming encoder writer to be used if there is one. Otherwise,
+	// this is just the normal writer.
+	w                io.Writer
+	encoding         string
+	contentTypes     map[string]struct{}
+	contentWildcards map[string]struct{}
+	wroteHeader      bool
+	compressable     bool
+}
+
+func (cw *compressResponseWriter) isCompressable() bool {
+	// Parse the first part of the Content-Type response header.
+	contentType := cw.Header().Get("Content-Type")
+	if idx := strings.Index(contentType, ";"); idx >= 0 {
+		contentType = contentType[0:idx]
+	}
+
+	// Is the content type compressable?
+	if _, ok := cw.contentTypes[contentType]; ok {
+		return true
+	}
+	if idx := strings.Index(contentType, "/"); idx > 0 {
+		contentType = contentType[0:idx]
+		_, ok := cw.contentWildcards[contentType]
+		return ok
+	}
+	return false
 }

 func (cw *compressResponseWriter) WriteHeader(code int) {
 	if cw.wroteHeader {
+		cw.ResponseWriter.WriteHeader(code) // Allow multiple calls to propagate.
 		return
 	}
 	cw.wroteHeader = true
@ -200,26 +310,18 @@ func (cw *compressResponseWriter) WriteHeader(code int) {
 		return
 	}

-	// Parse the first part of the Content-Type response header.
-	contentType := ""
-	parts := strings.Split(cw.Header().Get("Content-Type"), ";")
-	if len(parts) > 0 {
-		contentType = parts[0]
-	}
-
-	// Is the content type compressable?
-	if _, ok := cw.contentTypes[contentType]; !ok {
+	if !cw.isCompressable() {
+		cw.compressable = false
 		return
 	}

-	if cw.encoder != nil && cw.encoding != "" {
-		if wr := cw.encoder(cw.ResponseWriter, cw.level); wr != nil {
-			cw.w = wr
-			cw.Header().Set("Content-Encoding", cw.encoding)
+	if cw.encoding != "" {
+		cw.compressable = true
+		cw.Header().Set("Content-Encoding", cw.encoding)
+		cw.Header().Set("Vary", "Accept-Encoding")

-			// The content-length after compression is unknown
-			cw.Header().Del("Content-Length")
-		}
+		// The content-length after compression is unknown
+		cw.Header().Del("Content-Length")
 	}
 }

@ -228,37 +330,59 @@ func (cw *compressResponseWriter) Write(p []byte) (int, error) {
 		cw.WriteHeader(http.StatusOK)
 	}

-	return cw.w.Write(p)
+	return cw.writer().Write(p)
+}
+
+func (cw *compressResponseWriter) writer() io.Writer {
+	if cw.compressable {
+		return cw.w
+	} else {
+		return cw.ResponseWriter
+	}
+}
+
+type compressFlusher interface {
+	Flush() error
 }

 func (cw *compressResponseWriter) Flush() {
-	if f, ok := cw.w.(http.Flusher); ok {
+	if f, ok := cw.writer().(http.Flusher); ok {
 		f.Flush()
 	}
+	// If the underlying writer has a compression flush signature,
+	// call this Flush() method instead
+	if f, ok := cw.writer().(compressFlusher); ok {
+		f.Flush()
+
+		// Also flush the underlying response writer
+		if f, ok := cw.ResponseWriter.(http.Flusher); ok {
+			f.Flush()
+		}
+	}
 }

 func (cw *compressResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	if hj, ok := cw.w.(http.Hijacker); ok {
+	if hj, ok := cw.writer().(http.Hijacker); ok {
 		return hj.Hijack()
 	}
 	return nil, nil, errors.New("chi/middleware: http.Hijacker is unavailable on the writer")
 }

 func (cw *compressResponseWriter) Push(target string, opts *http.PushOptions) error {
-	if ps, ok := cw.w.(http.Pusher); ok {
+	if ps, ok := cw.writer().(http.Pusher); ok {
 		return ps.Push(target, opts)
 	}
 	return errors.New("chi/middleware: http.Pusher is unavailable on the writer")
 }

 func (cw *compressResponseWriter) Close() error {
-	if c, ok := cw.w.(io.WriteCloser); ok {
+	if c, ok := cw.writer().(io.WriteCloser); ok {
 		return c.Close()
 	}
 	return errors.New("chi/middleware: io.WriteCloser is unavailable on the writer")
 }

-func encoderGzip(w http.ResponseWriter, level int) io.Writer {
+func encoderGzip(w io.Writer, level int) io.Writer {
 	gw, err := gzip.NewWriterLevel(w, level)
 	if err != nil {
 		return nil
@ -266,7 +390,7 @@ func encoderGzip(w http.ResponseWriter, level int) io.Writer {
 	return gw
 }

-func encoderDeflate(w http.ResponseWriter, level int) io.Writer {
+func encoderDeflate(w io.Writer, level int) io.Writer {
 	dw, err := flate.NewWriter(w, level)
 	if err != nil {
 		return nil
--- a/vendor/github.com/go-chi/chi/middleware/content_encoding.go
+++ b/vendor/github.com/go-chi/chi/middleware/content_encoding.go
@ -0,0 +1,34 @@
+package middleware
+
+import (
+	"net/http"
+	"strings"
+)
+
+// AllowContentEncoding enforces a whitelist of request Content-Encoding otherwise responds
+// with a 415 Unsupported Media Type status.
+func AllowContentEncoding(contentEncoding ...string) func(next http.Handler) http.Handler {
+	allowedEncodings := make(map[string]struct{}, len(contentEncoding))
+	for _, encoding := range contentEncoding {
+		allowedEncodings[strings.TrimSpace(strings.ToLower(encoding))] = struct{}{}
+	}
+	return func(next http.Handler) http.Handler {
+		fn := func(w http.ResponseWriter, r *http.Request) {
+			requestEncodings := r.Header["Content-Encoding"]
+			// skip check for empty content body or no Content-Encoding
+			if r.ContentLength == 0 {
+				next.ServeHTTP(w, r)
+				return
+			}
+			// All encodings in the request must be allowed
+			for _, encoding := range requestEncodings {
+				if _, ok := allowedEncodings[strings.TrimSpace(strings.ToLower(encoding))]; !ok {
+					w.WriteHeader(http.StatusUnsupportedMediaType)
+					return
+				}
+			}
+			next.ServeHTTP(w, r)
+		}
+		return http.HandlerFunc(fn)
+	}
+}
--- a/vendor/github.com/go-chi/chi/middleware/content_type.go
+++ b/vendor/github.com/go-chi/chi/middleware/content_type.go
@ -19,9 +19,9 @@ func SetHeader(key, value string) func(next http.Handler) http.Handler {
 // AllowContentType enforces a whitelist of request Content-Types otherwise responds
 // with a 415 Unsupported Media Type status.
 func AllowContentType(contentTypes ...string) func(next http.Handler) http.Handler {
-	cT := []string{}
-	for _, t := range contentTypes {
-		cT = append(cT, strings.ToLower(t))
+	allowedContentTypes := make(map[string]struct{}, len(contentTypes))
+	for _, ctype := range contentTypes {
+		allowedContentTypes[strings.TrimSpace(strings.ToLower(ctype))] = struct{}{}
 	}

 	return func(next http.Handler) http.Handler {
@ -37,11 +37,9 @@ func AllowContentType(contentTypes ...string) func(next http.Handler) http.Handl
 				s = s[0:i]
 			}

-			for _, t := range cT {
-				if t == s {
-					next.ServeHTTP(w, r)
-					return
-				}
+			if _, ok := allowedContentTypes[s]; ok {
+				next.ServeHTTP(w, r)
+				return
 			}

 			w.WriteHeader(http.StatusUnsupportedMediaType)
--- a/vendor/github.com/go-chi/chi/middleware/logger.go
+++ b/vendor/github.com/go-chi/chi/middleware/logger.go
@ -6,6 +6,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"runtime"
 	"time"
 )

@ -16,7 +17,7 @@ var (
 	// DefaultLogger is called by the Logger middleware handler to log each request.
 	// Its made a package-level variable so that it can be reconfigured for custom
 	// logging configurations.
-	DefaultLogger = RequestLogger(&DefaultLogFormatter{Logger: log.New(os.Stdout, "", log.LstdFlags), NoColor: false})
+	DefaultLogger func(next http.Handler) http.Handler
 )

 // Logger is a middleware that logs the start and end of each request, along
@ -25,8 +26,18 @@ var (
 // print in color, otherwise it will print in black and white. Logger prints a
 // request ID if one is provided.
 //
-// Alternatively, look at https://github.com/pressly/lg and the `lg.RequestLogger`
-// middleware pkg.
+// Alternatively, look at https://github.com/goware/httplog for a more in-depth
+// http logger with structured logging support.
+//
+// IMPORTANT NOTE: Logger should go before any other middleware that may change
+// the response, such as `middleware.Recoverer`. Example:
+//
+// ```go
+// r := chi.NewRouter()
+// r.Use(middleware.Logger)        // <--<< Logger should come before Recoverer
+// r.Use(middleware.Recoverer)
+// r.Get("/", handler)
+// ```
 func Logger(next http.Handler) http.Handler {
 	return DefaultLogger(next)
 }
@ -40,7 +51,7 @@ func RequestLogger(f LogFormatter) func(next http.Handler) http.Handler {

 			t1 := time.Now()
 			defer func() {
-				entry.Write(ww.Status(), ww.BytesWritten(), time.Since(t1))
+				entry.Write(ww.Status(), ww.BytesWritten(), ww.Header(), time.Since(t1), nil)
 			}()

 			next.ServeHTTP(ww, WithLogEntry(r, entry))
@ -58,7 +69,7 @@ type LogFormatter interface {
 // LogEntry records the final log when a request completes.
 // See defaultLogEntry for an example implementation.
 type LogEntry interface {
-	Write(status, bytes int, elapsed time.Duration)
+	Write(status, bytes int, header http.Header, elapsed time.Duration, extra interface{})
 	Panic(v interface{}, stack []byte)
 }

@ -122,7 +133,7 @@ type defaultLogEntry struct {
 	useColor bool
 }

-func (l *defaultLogEntry) Write(status, bytes int, elapsed time.Duration) {
+func (l *defaultLogEntry) Write(status, bytes int, header http.Header, elapsed time.Duration, extra interface{}) {
 	switch {
 	case status < 200:
 		cW(l.buf, l.useColor, bBlue, "%03d", status)
@ -151,8 +162,13 @@ func (l *defaultLogEntry) Write(status, bytes int, elapsed time.Duration) {
 }

 func (l *defaultLogEntry) Panic(v interface{}, stack []byte) {
-	panicEntry := l.NewLogEntry(l.request).(*defaultLogEntry)
-	cW(panicEntry.buf, l.useColor, bRed, "panic: %+v", v)
-	l.Logger.Print(panicEntry.buf.String())
-	l.Logger.Print(string(stack))
+	PrintPrettyStack(v)
+}
+
+func init() {
+	color := true
+	if runtime.GOOS == "windows" {
+		color = false
+	}
+	DefaultLogger = RequestLogger(&DefaultLogFormatter{Logger: log.New(os.Stdout, "", log.LstdFlags), NoColor: !color})
 }
--- a/vendor/github.com/go-chi/chi/middleware/middleware.go
+++ b/vendor/github.com/go-chi/chi/middleware/middleware.go
@ -1,5 +1,16 @@
 package middleware

+import "net/http"
+
+// New will create a new middleware handler from a http.Handler.
+func New(h http.Handler) func(next http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			h.ServeHTTP(w, r)
+		})
+	}
+}
+
 // contextKey is a value for use with context.WithValue. It's used as
 // a pointer so it fits in an interface{} without allocation. This technique
 // for defining context keys was copied from Go 1.7's new use of context in net/http.
--- a/vendor/github.com/go-chi/chi/middleware/profiler.go
+++ b/vendor/github.com/go-chi/chi/middleware/profiler.go
@ -23,10 +23,10 @@ func Profiler() http.Handler {
 	r.Use(NoCache)

 	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
-		http.Redirect(w, r, r.RequestURI+"/pprof/", 301)
+		http.Redirect(w, r, r.RequestURI+"/pprof/", http.StatusMovedPermanently)
 	})
 	r.HandleFunc("/pprof", func(w http.ResponseWriter, r *http.Request) {
-		http.Redirect(w, r, r.RequestURI+"/", 301)
+		http.Redirect(w, r, r.RequestURI+"/", http.StatusMovedPermanently)
 	})

 	r.HandleFunc("/pprof/*", pprof.Index)
--- a/vendor/github.com/go-chi/chi/middleware/realip.go
+++ b/vendor/github.com/go-chi/chi/middleware/realip.go
@ -40,14 +40,14 @@ func RealIP(h http.Handler) http.Handler {
 func realIP(r *http.Request) string {
 	var ip string

-	if xff := r.Header.Get(xForwardedFor); xff != "" {
+	if xrip := r.Header.Get(xRealIP); xrip != "" {
+		ip = xrip
+	} else if xff := r.Header.Get(xForwardedFor); xff != "" {
 		i := strings.Index(xff, ", ")
 		if i == -1 {
 			i = len(xff)
 		}
 		ip = xff[:i]
-	} else if xrip := r.Header.Get(xRealIP); xrip != "" {
-		ip = xrip
 	}

 	return ip
--- a/vendor/github.com/go-chi/chi/middleware/recoverer.go
+++ b/vendor/github.com/go-chi/chi/middleware/recoverer.go
@ -4,10 +4,13 @@ package middleware
 // https://github.com/zenazn/goji/tree/master/web/middleware

 import (
+	"bytes"
+	"errors"
 	"fmt"
 	"net/http"
 	"os"
 	"runtime/debug"
+	"strings"
 )

 // Recoverer is a middleware that recovers from panics, logs the panic (and a
@ -18,17 +21,16 @@ import (
 func Recoverer(next http.Handler) http.Handler {
 	fn := func(w http.ResponseWriter, r *http.Request) {
 		defer func() {
-			if rvr := recover(); rvr != nil {
+			if rvr := recover(); rvr != nil && rvr != http.ErrAbortHandler {

 				logEntry := GetLogEntry(r)
 				if logEntry != nil {
 					logEntry.Panic(rvr, debug.Stack())
 				} else {
-					fmt.Fprintf(os.Stderr, "Panic: %+v\n", rvr)
-					debug.PrintStack()
+					PrintPrettyStack(rvr)
 				}

-				http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+				w.WriteHeader(http.StatusInternalServerError)
 			}
 		}()

@ -37,3 +39,154 @@ func Recoverer(next http.Handler) http.Handler {

 	return http.HandlerFunc(fn)
 }
+
+func PrintPrettyStack(rvr interface{}) {
+	debugStack := debug.Stack()
+	s := prettyStack{}
+	out, err := s.parse(debugStack, rvr)
+	if err == nil {
+		os.Stderr.Write(out)
+	} else {
+		// print stdlib output as a fallback
+		os.Stderr.Write(debugStack)
+	}
+}
+
+type prettyStack struct {
+}
+
+func (s prettyStack) parse(debugStack []byte, rvr interface{}) ([]byte, error) {
+	var err error
+	useColor := true
+	buf := &bytes.Buffer{}
+
+	cW(buf, false, bRed, "\n")
+	cW(buf, useColor, bCyan, " panic: ")
+	cW(buf, useColor, bBlue, "%v", rvr)
+	cW(buf, false, bWhite, "\n \n")
+
+	// process debug stack info
+	stack := strings.Split(string(debugStack), "\n")
+	lines := []string{}
+
+	// locate panic line, as we may have nested panics
+	for i := len(stack) - 1; i > 0; i-- {
+		lines = append(lines, stack[i])
+		if strings.HasPrefix(stack[i], "panic(0x") {
+			lines = lines[0 : len(lines)-2] // remove boilerplate
+			break
+		}
+	}
+
+	// reverse
+	for i := len(lines)/2 - 1; i >= 0; i-- {
+		opp := len(lines) - 1 - i
+		lines[i], lines[opp] = lines[opp], lines[i]
+	}
+
+	// decorate
+	for i, line := range lines {
+		lines[i], err = s.decorateLine(line, useColor, i)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	for _, l := range lines {
+		fmt.Fprintf(buf, "%s", l)
+	}
+	return buf.Bytes(), nil
+}
+
+func (s prettyStack) decorateLine(line string, useColor bool, num int) (string, error) {
+	line = strings.TrimSpace(line)
+	if strings.HasPrefix(line, "\t") || strings.Contains(line, ".go:") {
+		return s.decorateSourceLine(line, useColor, num)
+	} else if strings.HasSuffix(line, ")") {
+		return s.decorateFuncCallLine(line, useColor, num)
+	} else {
+		if strings.HasPrefix(line, "\t") {
+			return strings.Replace(line, "\t", "      ", 1), nil
+		} else {
+			return fmt.Sprintf("    %s\n", line), nil
+		}
+	}
+}
+
+func (s prettyStack) decorateFuncCallLine(line string, useColor bool, num int) (string, error) {
+	idx := strings.LastIndex(line, "(")
+	if idx < 0 {
+		return "", errors.New("not a func call line")
+	}
+
+	buf := &bytes.Buffer{}
+	pkg := line[0:idx]
+	// addr := line[idx:]
+	method := ""
+
+	idx = strings.LastIndex(pkg, string(os.PathSeparator))
+	if idx < 0 {
+		idx = strings.Index(pkg, ".")
+		method = pkg[idx:]
+		pkg = pkg[0:idx]
+	} else {
+		method = pkg[idx+1:]
+		pkg = pkg[0 : idx+1]
+		idx = strings.Index(method, ".")
+		pkg += method[0:idx]
+		method = method[idx:]
+	}
+	pkgColor := nYellow
+	methodColor := bGreen
+
+	if num == 0 {
+		cW(buf, useColor, bRed, " -> ")
+		pkgColor = bMagenta
+		methodColor = bRed
+	} else {
+		cW(buf, useColor, bWhite, "    ")
+	}
+	cW(buf, useColor, pkgColor, "%s", pkg)
+	cW(buf, useColor, methodColor, "%s\n", method)
+	// cW(buf, useColor, nBlack, "%s", addr)
+	return buf.String(), nil
+}
+
+func (s prettyStack) decorateSourceLine(line string, useColor bool, num int) (string, error) {
+	idx := strings.LastIndex(line, ".go:")
+	if idx < 0 {
+		return "", errors.New("not a source line")
+	}
+
+	buf := &bytes.Buffer{}
+	path := line[0 : idx+3]
+	lineno := line[idx+3:]
+
+	idx = strings.LastIndex(path, string(os.PathSeparator))
+	dir := path[0 : idx+1]
+	file := path[idx+1:]
+
+	idx = strings.Index(lineno, " ")
+	if idx > 0 {
+		lineno = lineno[0:idx]
+	}
+	fileColor := bCyan
+	lineColor := bGreen
+
+	if num == 1 {
+		cW(buf, useColor, bRed, " ->   ")
+		fileColor = bRed
+		lineColor = bMagenta
+	} else {
+		cW(buf, false, bWhite, "      ")
+	}
+	cW(buf, useColor, bWhite, "%s", dir)
+	cW(buf, useColor, fileColor, "%s", file)
+	cW(buf, useColor, lineColor, "%s", lineno)
+	if num == 1 {
+		cW(buf, false, bWhite, "\n")
+	}
+	cW(buf, false, bWhite, "\n")
+
+	return buf.String(), nil
+}
--- a/vendor/github.com/go-chi/chi/middleware/request_id.go
+++ b/vendor/github.com/go-chi/chi/middleware/request_id.go
@ -20,6 +20,10 @@ type ctxKeyRequestID int
 // RequestIDKey is the key that holds the unique request ID in a request context.
 const RequestIDKey ctxKeyRequestID = 0

+// RequestIDHeader is the name of the HTTP Header which contains the request id.
+// Exported so that it can be changed by developers
+var RequestIDHeader = "X-Request-Id"
+
 var prefix string
 var reqid uint64

@ -63,7 +67,7 @@ func init() {
 func RequestID(next http.Handler) http.Handler {
 	fn := func(w http.ResponseWriter, r *http.Request) {
 		ctx := r.Context()
-		requestID := r.Header.Get("X-Request-Id")
+		requestID := r.Header.Get(RequestIDHeader)
 		if requestID == "" {
 			myid := atomic.AddUint64(&reqid, 1)
 			requestID = fmt.Sprintf("%s-%06d", prefix, myid)
--- a/vendor/github.com/go-chi/chi/middleware/route_headers.go
+++ b/vendor/github.com/go-chi/chi/middleware/route_headers.go
@ -0,0 +1,160 @@
+package middleware
+
+import (
+	"net/http"
+	"strings"
+)
+
+// RouteHeaders is a neat little header-based router that allows you to direct
+// the flow of a request through a middleware stack based on a request header.
+//
+// For example, lets say you'd like to setup multiple routers depending on the
+// request Host header, you could then do something as so:
+//
+// r := chi.NewRouter()
+// rSubdomain := chi.NewRouter()
+//
+// r.Use(middleware.RouteHeaders().
+//   Route("Host", "example.com", middleware.New(r)).
+//   Route("Host", "*.example.com", middleware.New(rSubdomain)).
+//   Handler)
+//
+// r.Get("/", h)
+// rSubdomain.Get("/", h2)
+//
+//
+// Another example, imagine you want to setup multiple CORS handlers, where for
+// your origin servers you allow authorized requests, but for third-party public
+// requests, authorization is disabled.
+//
+// r := chi.NewRouter()
+//
+// r.Use(middleware.RouteHeaders().
+//   Route("Origin", "https://app.skyweaver.net", cors.Handler(cors.Options{
+// 	   AllowedOrigins:   []string{"https://api.skyweaver.net"},
+// 	   AllowedMethods:   []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
+// 	   AllowedHeaders:   []string{"Accept", "Authorization", "Content-Type"},
+// 	   AllowCredentials: true, // <----------<<< allow credentials
+//   })).
+//   Route("Origin", "*", cors.Handler(cors.Options{
+// 	   AllowedOrigins:   []string{"*"},
+// 	   AllowedMethods:   []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
+// 	   AllowedHeaders:   []string{"Accept", "Content-Type"},
+// 	   AllowCredentials: false, // <----------<<< do not allow credentials
+//   })).
+//   Handler)
+//
+func RouteHeaders() HeaderRouter {
+	return HeaderRouter{}
+}
+
+type HeaderRouter map[string][]HeaderRoute
+
+func (hr HeaderRouter) Route(header, match string, middlewareHandler func(next http.Handler) http.Handler) HeaderRouter {
+	header = strings.ToLower(header)
+	k := hr[header]
+	if k == nil {
+		hr[header] = []HeaderRoute{}
+	}
+	hr[header] = append(hr[header], HeaderRoute{MatchOne: NewPattern(match), Middleware: middlewareHandler})
+	return hr
+}
+
+func (hr HeaderRouter) RouteAny(header string, match []string, middlewareHandler func(next http.Handler) http.Handler) HeaderRouter {
+	header = strings.ToLower(header)
+	k := hr[header]
+	if k == nil {
+		hr[header] = []HeaderRoute{}
+	}
+	patterns := []Pattern{}
+	for _, m := range match {
+		patterns = append(patterns, NewPattern(m))
+	}
+	hr[header] = append(hr[header], HeaderRoute{MatchAny: patterns, Middleware: middlewareHandler})
+	return hr
+}
+
+func (hr HeaderRouter) RouteDefault(handler func(next http.Handler) http.Handler) HeaderRouter {
+	hr["*"] = []HeaderRoute{{Middleware: handler}}
+	return hr
+}
+
+func (hr HeaderRouter) Handler(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if len(hr) == 0 {
+			// skip if no routes set
+			next.ServeHTTP(w, r)
+		}
+
+		// find first matching header route, and continue
+		for header, matchers := range hr {
+			headerValue := r.Header.Get(header)
+			if headerValue == "" {
+				continue
+			}
+			headerValue = strings.ToLower(headerValue)
+			for _, matcher := range matchers {
+				if matcher.IsMatch(headerValue) {
+					matcher.Middleware(next).ServeHTTP(w, r)
+					return
+				}
+			}
+		}
+
+		// if no match, check for "*" default route
+		matcher, ok := hr["*"]
+		if !ok || matcher[0].Middleware == nil {
+			next.ServeHTTP(w, r)
+			return
+		}
+		matcher[0].Middleware(next).ServeHTTP(w, r)
+	})
+}
+
+type HeaderRoute struct {
+	MatchAny   []Pattern
+	MatchOne   Pattern
+	Middleware func(next http.Handler) http.Handler
+}
+
+func (r HeaderRoute) IsMatch(value string) bool {
+	if len(r.MatchAny) > 0 {
+		for _, m := range r.MatchAny {
+			if m.Match(value) {
+				return true
+			}
+		}
+	} else if r.MatchOne.Match(value) {
+		return true
+	}
+	return false
+}
+
+type Pattern struct {
+	prefix   string
+	suffix   string
+	wildcard bool
+}
+
+func NewPattern(value string) Pattern {
+	p := Pattern{}
+	if i := strings.IndexByte(value, '*'); i >= 0 {
+		p.wildcard = true
+		p.prefix = value[0:i]
+		p.suffix = value[i+1:]
+	} else {
+		p.prefix = value
+	}
+	return p
+}
+
+func (p Pattern) Match(v string) bool {
+	if !p.wildcard {
+		if p.prefix == v {
+			return true
+		} else {
+			return false
+		}
+	}
+	return len(v) >= len(p.prefix+p.suffix) && strings.HasPrefix(v, p.prefix) && strings.HasSuffix(v, p.suffix)
+}
--- a/vendor/github.com/go-chi/chi/middleware/strip.go
+++ b/vendor/github.com/go-chi/chi/middleware/strip.go
@ -14,13 +14,18 @@ func StripSlashes(next http.Handler) http.Handler {
 	fn := func(w http.ResponseWriter, r *http.Request) {
 		var path string
 		rctx := chi.RouteContext(r.Context())
-		if rctx.RoutePath != "" {
+		if rctx != nil && rctx.RoutePath != "" {
 			path = rctx.RoutePath
 		} else {
 			path = r.URL.Path
 		}
 		if len(path) > 1 && path[len(path)-1] == '/' {
-			rctx.RoutePath = path[:len(path)-1]
+			newPath := path[:len(path)-1]
+			if rctx == nil {
+				r.URL.Path = newPath
+			} else {
+				rctx.RoutePath = newPath
+			}
 		}
 		next.ServeHTTP(w, r)
 	}
@ -36,7 +41,7 @@ func RedirectSlashes(next http.Handler) http.Handler {
 	fn := func(w http.ResponseWriter, r *http.Request) {
 		var path string
 		rctx := chi.RouteContext(r.Context())
-		if rctx.RoutePath != "" {
+		if rctx != nil && rctx.RoutePath != "" {
 			path = rctx.RoutePath
 		} else {
 			path = r.URL.Path
@ -47,7 +52,8 @@ func RedirectSlashes(next http.Handler) http.Handler {
 			} else {
 				path = path[:len(path)-1]
 			}
-			http.Redirect(w, r, path, 301)
+			redirectURL := fmt.Sprintf("//%s%s", r.Host, path)
+			http.Redirect(w, r, redirectURL, 301)
 			return
 		}
 		next.ServeHTTP(w, r)
--- a/vendor/github.com/go-chi/chi/middleware/terminal.go
+++ b/vendor/github.com/go-chi/chi/middleware/terminal.go
@ -32,7 +32,7 @@ var (
 	reset = []byte{'\033', '[', '0', 'm'}
 )

-var isTTY bool
+var IsTTY bool

 func init() {
 	// This is sort of cheating: if stdout is a character device, we assume
@ -47,17 +47,17 @@ func init() {
 	fi, err := os.Stdout.Stat()
 	if err == nil {
 		m := os.ModeDevice | os.ModeCharDevice
-		isTTY = fi.Mode()&m == m
+		IsTTY = fi.Mode()&m == m
 	}
 }

 // colorWrite
 func cW(w io.Writer, useColor bool, color []byte, s string, args ...interface{}) {
-	if isTTY && useColor {
+	if IsTTY && useColor {
 		w.Write(color)
 	}
 	fmt.Fprintf(w, s, args...)
-	if isTTY && useColor {
+	if IsTTY && useColor {
 		w.Write(reset)
 	}
 }
--- a/vendor/github.com/go-chi/chi/middleware/throttle.go
+++ b/vendor/github.com/go-chi/chi/middleware/throttle.go
@ -2,6 +2,7 @@ package middleware

 import (
 	"net/http"
+	"strconv"
 	"time"
 )

@ -15,44 +16,100 @@ var (
 	defaultBacklogTimeout = time.Second * 60
 )

+// ThrottleOpts represents a set of throttling options.
+type ThrottleOpts struct {
+	Limit          int
+	BacklogLimit   int
+	BacklogTimeout time.Duration
+	RetryAfterFn   func(ctxDone bool) time.Duration
+}
+
 // Throttle is a middleware that limits number of currently processed requests
-// at a time.
+// at a time across all users. Note: Throttle is not a rate-limiter per user,
+// instead it just puts a ceiling on the number of currentl in-flight requests
+// being processed from the point from where the Throttle middleware is mounted.
 func Throttle(limit int) func(http.Handler) http.Handler {
-	return ThrottleBacklog(limit, 0, defaultBacklogTimeout)
+	return ThrottleWithOpts(ThrottleOpts{Limit: limit, BacklogTimeout: defaultBacklogTimeout})
 }

 // ThrottleBacklog is a middleware that limits number of currently processed
 // requests at a time and provides a backlog for holding a finite number of
 // pending requests.
-func ThrottleBacklog(limit int, backlogLimit int, backlogTimeout time.Duration) func(http.Handler) http.Handler {
-	if limit < 1 {
+func ThrottleBacklog(limit, backlogLimit int, backlogTimeout time.Duration) func(http.Handler) http.Handler {
+	return ThrottleWithOpts(ThrottleOpts{Limit: limit, BacklogLimit: backlogLimit, BacklogTimeout: backlogTimeout})
+}
+
+// ThrottleWithOpts is a middleware that limits number of currently processed requests using passed ThrottleOpts.
+func ThrottleWithOpts(opts ThrottleOpts) func(http.Handler) http.Handler {
+	if opts.Limit < 1 {
 		panic("chi/middleware: Throttle expects limit > 0")
 	}

-	if backlogLimit < 0 {
+	if opts.BacklogLimit < 0 {
 		panic("chi/middleware: Throttle expects backlogLimit to be positive")
 	}

 	t := throttler{
-		tokens:         make(chan token, limit),
-		backlogTokens:  make(chan token, limit+backlogLimit),
-		backlogTimeout: backlogTimeout,
+		tokens:         make(chan token, opts.Limit),
+		backlogTokens:  make(chan token, opts.Limit+opts.BacklogLimit),
+		backlogTimeout: opts.BacklogTimeout,
+		retryAfterFn:   opts.RetryAfterFn,
 	}

 	// Filling tokens.
-	for i := 0; i < limit+backlogLimit; i++ {
-		if i < limit {
+	for i := 0; i < opts.Limit+opts.BacklogLimit; i++ {
+		if i < opts.Limit {
 			t.tokens <- token{}
 		}
 		t.backlogTokens <- token{}
 	}

-	fn := func(h http.Handler) http.Handler {
-		t.h = h
-		return &t
-	}
+	return func(next http.Handler) http.Handler {
+		fn := func(w http.ResponseWriter, r *http.Request) {
+			ctx := r.Context()

-	return fn
+			select {
+
+			case <-ctx.Done():
+				t.setRetryAfterHeaderIfNeeded(w, true)
+				http.Error(w, errContextCanceled, http.StatusTooManyRequests)
+				return
+
+			case btok := <-t.backlogTokens:
+				timer := time.NewTimer(t.backlogTimeout)
+
+				defer func() {
+					t.backlogTokens <- btok
+				}()
+
+				select {
+				case <-timer.C:
+					t.setRetryAfterHeaderIfNeeded(w, false)
+					http.Error(w, errTimedOut, http.StatusTooManyRequests)
+					return
+				case <-ctx.Done():
+					timer.Stop()
+					t.setRetryAfterHeaderIfNeeded(w, true)
+					http.Error(w, errContextCanceled, http.StatusTooManyRequests)
+					return
+				case tok := <-t.tokens:
+					defer func() {
+						timer.Stop()
+						t.tokens <- tok
+					}()
+					next.ServeHTTP(w, r)
+				}
+				return
+
+			default:
+				t.setRetryAfterHeaderIfNeeded(w, false)
+				http.Error(w, errCapacityExceeded, http.StatusTooManyRequests)
+				return
+			}
+		}
+
+		return http.HandlerFunc(fn)
+	}
 }

 // token represents a request that is being processed.
@ -60,42 +117,16 @@ type token struct{}

 // throttler limits number of currently processed requests at a time.
 type throttler struct {
-	h              http.Handler
 	tokens         chan token
 	backlogTokens  chan token
 	backlogTimeout time.Duration
+	retryAfterFn   func(ctxDone bool) time.Duration
 }

-// ServeHTTP is the primary throttler request handler
-func (t *throttler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-	select {
-	case <-ctx.Done():
-		http.Error(w, errContextCanceled, http.StatusServiceUnavailable)
-		return
-	case btok := <-t.backlogTokens:
-		timer := time.NewTimer(t.backlogTimeout)
-
-		defer func() {
-			t.backlogTokens <- btok
-		}()
-
-		select {
-		case <-timer.C:
-			http.Error(w, errTimedOut, http.StatusServiceUnavailable)
-			return
-		case <-ctx.Done():
-			http.Error(w, errContextCanceled, http.StatusServiceUnavailable)
-			return
-		case tok := <-t.tokens:
-			defer func() {
-				t.tokens <- tok
-			}()
-			t.h.ServeHTTP(w, r)
-		}
-		return
-	default:
-		http.Error(w, errCapacityExceeded, http.StatusServiceUnavailable)
+// setRetryAfterHeaderIfNeeded sets Retry-After HTTP header if corresponding retryAfterFn option of throttler is initialized.
+func (t throttler) setRetryAfterHeaderIfNeeded(w http.ResponseWriter, ctxDone bool) {
+	if t.retryAfterFn == nil {
 		return
 	}
+	w.Header().Set("Retry-After", strconv.Itoa(int(t.retryAfterFn(ctxDone).Seconds())))
 }
--- a/vendor/github.com/go-chi/chi/middleware/url_format.go
+++ b/vendor/github.com/go-chi/chi/middleware/url_format.go
@ -53,7 +53,7 @@ func URLFormat(next http.Handler) http.Handler {

 		if strings.Index(path, ".") > 0 {
 			base := strings.LastIndex(path, "/")
-			idx := strings.Index(path[base:], ".")
+			idx := strings.LastIndex(path[base:], ".")

 			if idx > 0 {
 				idx += base
--- a/vendor/github.com/go-chi/chi/middleware/value.go
+++ b/vendor/github.com/go-chi/chi/middleware/value.go
@ -6,7 +6,7 @@ import (
 )

 // WithValue is a middleware that sets a given key/value in a context chain.
-func WithValue(key interface{}, val interface{}) func(next http.Handler) http.Handler {
+func WithValue(key, val interface{}) func(next http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		fn := func(w http.ResponseWriter, r *http.Request) {
 			r = r.WithContext(context.WithValue(r.Context(), key, val))
--- a/vendor/github.com/go-chi/chi/middleware/wrap_writer.go
+++ b/vendor/github.com/go-chi/chi/middleware/wrap_writer.go
@ -19,19 +19,16 @@ func NewWrapResponseWriter(w http.ResponseWriter, protoMajor int) WrapResponseWr

 	if protoMajor == 2 {
 		_, ps := w.(http.Pusher)
-		if fl && ps {
+		if fl || ps {
 			return &http2FancyWriter{bw}
 		}
 	} else {
 		_, hj := w.(http.Hijacker)
 		_, rf := w.(io.ReaderFrom)
-		if fl && hj && rf {
+		if fl || hj || rf {
 			return &httpFancyWriter{bw}
 		}
 	}
-	if fl {
-		return &flushWriter{bw}
-	}

 	return &bw
 }
@ -75,7 +72,7 @@ func (b *basicWriter) WriteHeader(code int) {
 }

 func (b *basicWriter) Write(buf []byte) (int, error) {
-	b.WriteHeader(http.StatusOK)
+	b.maybeWriteHeader()
 	n, err := b.ResponseWriter.Write(buf)
 	if b.tee != nil {
 		_, err2 := b.tee.Write(buf[:n])
@ -110,19 +107,6 @@ func (b *basicWriter) Unwrap() http.ResponseWriter {
 	return b.ResponseWriter
 }

-type flushWriter struct {
-	basicWriter
-}
-
-func (f *flushWriter) Flush() {
-	f.wroteHeader = true
-
-	fl := f.basicWriter.ResponseWriter.(http.Flusher)
-	fl.Flush()
-}
-
-var _ http.Flusher = &flushWriter{}
-
 // httpFancyWriter is a HTTP writer that additionally satisfies
 // http.Flusher, http.Hijacker, and io.ReaderFrom. It exists for the common case
 // of wrapping the http.ResponseWriter that package http gives you, in order to
@ -133,7 +117,6 @@ type httpFancyWriter struct {

 func (f *httpFancyWriter) Flush() {
 	f.wroteHeader = true
-
 	fl := f.basicWriter.ResponseWriter.(http.Flusher)
 	fl.Flush()
 }
@ -143,10 +126,6 @@ func (f *httpFancyWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
 	return hj.Hijack()
 }

-func (f *http2FancyWriter) Push(target string, opts *http.PushOptions) error {
-	return f.basicWriter.ResponseWriter.(http.Pusher).Push(target, opts)
-}
-
 func (f *httpFancyWriter) ReadFrom(r io.Reader) (int64, error) {
 	if f.basicWriter.tee != nil {
 		n, err := io.Copy(&f.basicWriter, r)
@ -162,7 +141,6 @@ func (f *httpFancyWriter) ReadFrom(r io.Reader) (int64, error) {

 var _ http.Flusher = &httpFancyWriter{}
 var _ http.Hijacker = &httpFancyWriter{}
-var _ http.Pusher = &http2FancyWriter{}
 var _ io.ReaderFrom = &httpFancyWriter{}

 // http2FancyWriter is a HTTP2 writer that additionally satisfies
@ -175,9 +153,13 @@ type http2FancyWriter struct {

 func (f *http2FancyWriter) Flush() {
 	f.wroteHeader = true
-
 	fl := f.basicWriter.ResponseWriter.(http.Flusher)
 	fl.Flush()
 }

+func (f *http2FancyWriter) Push(target string, opts *http.PushOptions) error {
+	return f.basicWriter.ResponseWriter.(http.Pusher).Push(target, opts)
+}
+
 var _ http.Flusher = &http2FancyWriter{}
+var _ http.Pusher = &http2FancyWriter{}
--- a/vendor/github.com/go-chi/chi/mux.go
+++ b/vendor/github.com/go-chi/chi/mux.go
@ -78,7 +78,12 @@ func (mx *Mux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	rctx = mx.pool.Get().(*Context)
 	rctx.Reset()
 	rctx.Routes = mx
+	rctx.parentCtx = r.Context()
+
+	// NOTE: r.WithContext() causes 2 allocations and context.WithValue() causes 1 allocation
 	r = r.WithContext(context.WithValue(r.Context(), RouteCtxKey, rctx))
+
+	// Serve the request and once its done, put the request context back in the sync pool
 	mx.handler.ServeHTTP(w, r)
 	mx.pool.Put(rctx)
 }
@ -183,17 +188,16 @@ func (mx *Mux) Trace(pattern string, handlerFn http.HandlerFunc) {
 func (mx *Mux) NotFound(handlerFn http.HandlerFunc) {
 	// Build NotFound handler chain
 	m := mx
-	hFn := handlerFn
+	h := Chain(mx.middlewares...).HandlerFunc(handlerFn).ServeHTTP
 	if mx.inline && mx.parent != nil {
 		m = mx.parent
-		hFn = Chain(mx.middlewares...).HandlerFunc(hFn).ServeHTTP
 	}

 	// Update the notFoundHandler from this point forward
-	m.notFoundHandler = hFn
+	m.notFoundHandler = h
 	m.updateSubRoutes(func(subMux *Mux) {
 		if subMux.notFoundHandler == nil {
-			subMux.NotFound(hFn)
+			subMux.NotFound(h)
 		}
 	})
 }
@ -203,27 +207,26 @@ func (mx *Mux) NotFound(handlerFn http.HandlerFunc) {
 func (mx *Mux) MethodNotAllowed(handlerFn http.HandlerFunc) {
 	// Build MethodNotAllowed handler chain
 	m := mx
-	hFn := handlerFn
+	h := Chain(mx.middlewares...).HandlerFunc(handlerFn).ServeHTTP
 	if mx.inline && mx.parent != nil {
 		m = mx.parent
-		hFn = Chain(mx.middlewares...).HandlerFunc(hFn).ServeHTTP
 	}

 	// Update the methodNotAllowedHandler from this point forward
-	m.methodNotAllowedHandler = hFn
+	m.methodNotAllowedHandler = h
 	m.updateSubRoutes(func(subMux *Mux) {
 		if subMux.methodNotAllowedHandler == nil {
-			subMux.MethodNotAllowed(hFn)
+			subMux.MethodNotAllowed(h)
 		}
 	})
 }

 // With adds inline middlewares for an endpoint handler.
 func (mx *Mux) With(middlewares ...func(http.Handler) http.Handler) Router {
-	// Similarly as in handle(), we must build the mux handler once further
+	// Similarly as in handle(), we must build the mux handler once additional
 	// middleware registration isn't allowed for this stack, like now.
 	if !mx.inline && mx.handler == nil {
-		mx.buildRouteHandler()
+		mx.updateRouteHandler()
 	}

 	// Copy middlewares from parent inline muxs
@ -234,7 +237,10 @@ func (mx *Mux) With(middlewares ...func(http.Handler) http.Handler) Router {
 	}
 	mws = append(mws, middlewares...)

-	im := &Mux{pool: mx.pool, inline: true, parent: mx, tree: mx.tree, middlewares: mws}
+	im := &Mux{
+		pool: mx.pool, inline: true, parent: mx, tree: mx.tree, middlewares: mws,
+		notFoundHandler: mx.notFoundHandler, methodNotAllowedHandler: mx.methodNotAllowedHandler,
+	}

 	return im
 }
@ -254,10 +260,11 @@ func (mx *Mux) Group(fn func(r Router)) Router {
 // along the `pattern` as a subrouter. Effectively, this is a short-hand
 // call to Mount. See _examples/.
 func (mx *Mux) Route(pattern string, fn func(r Router)) Router {
-	subRouter := NewRouter()
-	if fn != nil {
-		fn(subRouter)
+	if fn == nil {
+		panic(fmt.Sprintf("chi: attempting to Route() a nil subrouter on '%s'", pattern))
 	}
+	subRouter := NewRouter()
+	fn(subRouter)
 	mx.Mount(pattern, subRouter)
 	return subRouter
 }
@ -270,6 +277,10 @@ func (mx *Mux) Route(pattern string, fn func(r Router)) Router {
 // routing at the `handler`, which in most cases is another chi.Router. As a result,
 // if you define two Mount() routes on the exact same pattern the mount will panic.
 func (mx *Mux) Mount(pattern string, handler http.Handler) {
+	if handler == nil {
+		panic(fmt.Sprintf("chi: attempting to Mount() a nil handler on '%s'", pattern))
+	}
+
 	// Provide runtime safety for ensuring a pattern isn't mounted on an existing
 	// routing pattern.
 	if mx.tree.findPattern(pattern+"*") || mx.tree.findPattern(pattern+"/*") {
@ -285,10 +296,18 @@ func (mx *Mux) Mount(pattern string, handler http.Handler) {
 		subr.MethodNotAllowed(mx.methodNotAllowedHandler)
 	}

-	// Wrap the sub-router in a handlerFunc to scope the request path for routing.
 	mountHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		rctx := RouteContext(r.Context())
+
+		// shift the url path past the previous subrouter
 		rctx.RoutePath = mx.nextRoutePath(rctx)
+
+		// reset the wildcard URLParam which connects the subrouter
+		n := len(rctx.URLParams.Keys) - 1
+		if n >= 0 && rctx.URLParams.Keys[n] == "*" && len(rctx.URLParams.Values) > n {
+			rctx.URLParams.Values[n] = ""
+		}
+
 		handler.ServeHTTP(w, r)
 	})

@ -361,14 +380,6 @@ func (mx *Mux) MethodNotAllowedHandler() http.HandlerFunc {
 	return methodNotAllowedHandler
 }

-// buildRouteHandler builds the single mux handler that is a chain of the middleware
-// stack, as defined by calls to Use(), and the tree router (Mux) itself. After this
-// point, no other middlewares can be registered on this Mux's stack. But you can still
-// compose additional middlewares via Group()'s or using a chained middleware handler.
-func (mx *Mux) buildRouteHandler() {
-	mx.handler = chain(mx.middlewares, http.HandlerFunc(mx.routeHTTP))
-}
-
 // handle registers a http.Handler in the routing tree for a particular http method
 // and routing pattern.
 func (mx *Mux) handle(method methodTyp, pattern string, handler http.Handler) *node {
@ -376,9 +387,9 @@ func (mx *Mux) handle(method methodTyp, pattern string, handler http.Handler) *n
 		panic(fmt.Sprintf("chi: routing pattern must begin with '/' in '%s'", pattern))
 	}

-	// Build the final routing handler for this Mux.
+	// Build the computed routing handler for this routing pattern.
 	if !mx.inline && mx.handler == nil {
-		mx.buildRouteHandler()
+		mx.updateRouteHandler()
 	}

 	// Build endpoint handler with inline middlewares for the route
@ -436,7 +447,7 @@ func (mx *Mux) nextRoutePath(rctx *Context) string {
 	routePath := "/"
 	nx := len(rctx.routeParams.Keys) - 1 // index of last param in list
 	if nx >= 0 && rctx.routeParams.Keys[nx] == "*" && len(rctx.routeParams.Values) > nx {
-		routePath += rctx.routeParams.Values[nx]
+		routePath = "/" + rctx.routeParams.Values[nx]
 	}
 	return routePath
 }
@ -452,6 +463,14 @@ func (mx *Mux) updateSubRoutes(fn func(subMux *Mux)) {
 	}
 }

+// updateRouteHandler builds the single mux handler that is a chain of the middleware
+// stack, as defined by calls to Use(), and the tree router (Mux) itself. After this
+// point, no other middlewares can be registered on this Mux's stack. But you can still
+// compose additional middlewares via Group()'s or using a chained middleware handler.
+func (mx *Mux) updateRouteHandler() {
+	mx.handler = chain(mx.middlewares, http.HandlerFunc(mx.routeHTTP))
+}
+
 // methodNotAllowedHandler is a helper function to respond with a 405,
 // method not allowed.
 func methodNotAllowedHandler(w http.ResponseWriter, r *http.Request) {
--- a/vendor/github.com/go-chi/chi/tree.go
+++ b/vendor/github.com/go-chi/chi/tree.go
@ -6,7 +6,6 @@ package chi

 import (
 	"fmt"
-	"math"
 	"net/http"
 	"regexp"
 	"sort"
@ -55,10 +54,10 @@ func RegisterMethod(method string) {
 		return
 	}
 	n := len(methodMap)
-	if n > strconv.IntSize {
+	if n > strconv.IntSize-2 {
 		panic(fmt.Sprintf("chi: max number of methods reached (%d)", strconv.IntSize))
 	}
-	mt := methodTyp(math.Exp2(float64(n)))
+	mt := methodTyp(2 << n)
 	methodMap[method] = mt
 	mALL |= mt
 }
@ -331,7 +330,7 @@ func (n *node) getEdge(ntyp nodeTyp, label, tail byte, prefix string) *node {
 func (n *node) setEndpoint(method methodTyp, handler http.Handler, pattern string) {
 	// Set the handler for the method type on the node
 	if n.endpoints == nil {
-		n.endpoints = make(endpoints, 0)
+		n.endpoints = make(endpoints)
 	}

 	paramKeys := patParamKeys(pattern)
@ -430,10 +429,12 @@ func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
 					} else {
 						continue
 					}
+				} else if ntyp == ntRegexp && p == 0 {
+					continue
 				}

 				if ntyp == ntRegexp && xn.rex != nil {
-					if xn.rex.Match([]byte(xsearch[:p])) == false {
+					if !xn.rex.MatchString(xsearch[:p]) {
 						continue
 					}
 				} else if strings.IndexByte(xsearch[:p], '/') != -1 {
@ -441,11 +442,37 @@ func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
 					continue
 				}

+				prevlen := len(rctx.routeParams.Values)
 				rctx.routeParams.Values = append(rctx.routeParams.Values, xsearch[:p])
 				xsearch = xsearch[p:]
-				break
+
+				if len(xsearch) == 0 {
+					if xn.isLeaf() {
+						h := xn.endpoints[method]
+						if h != nil && h.handler != nil {
+							rctx.routeParams.Keys = append(rctx.routeParams.Keys, h.paramKeys...)
+							return xn
+						}
+
+						// flag that the routing context found a route, but not a corresponding
+						// supported method
+						rctx.methodNotAllowed = true
+					}
+				}
+
+				// recursively find the next node on this branch
+				fin := xn.findRoute(rctx, method, xsearch)
+				if fin != nil {
+					return fin
+				}
+
+				// not found on this branch, reset vars
+				rctx.routeParams.Values = rctx.routeParams.Values[:prevlen]
+				xsearch = search
 			}

+			rctx.routeParams.Values = append(rctx.routeParams.Values, "")
+
 		default:
 			// catch-all nodes
 			rctx.routeParams.Values = append(rctx.routeParams.Values, search)
@ -460,7 +487,7 @@ func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
 		// did we find it yet?
 		if len(xsearch) == 0 {
 			if xn.isLeaf() {
-				h, _ := xn.endpoints[method]
+				h := xn.endpoints[method]
 				if h != nil && h.handler != nil {
 					rctx.routeParams.Keys = append(rctx.routeParams.Keys, h.paramKeys...)
 					return xn
@ -518,15 +545,6 @@ func (n *node) findEdge(ntyp nodeTyp, label byte) *node {
 	}
 }

-func (n *node) isEmpty() bool {
-	for _, nds := range n.children {
-		if len(nds) > 0 {
-			return false
-		}
-	}
-	return true
-}
-
 func (n *node) isLeaf() bool {
 	return n.endpoints != nil
 }
@ -582,7 +600,7 @@ func (n *node) routes() []Route {
 		}

 		// Group methodHandlers by unique patterns
-		pats := make(map[string]endpoints, 0)
+		pats := make(map[string]endpoints)

 		for mt, h := range eps {
 			if h.pattern == "" {
@ -597,7 +615,7 @@ func (n *node) routes() []Route {
 		}

 		for p, mh := range pats {
-			hs := make(map[string]http.Handler, 0)
+			hs := make(map[string]http.Handler)
 			if mh[mALL] != nil && mh[mALL].handler != nil {
 				hs["*"] = mh[mALL].handler
 			}
@ -698,7 +716,7 @@ func patNextSegment(pattern string) (nodeTyp, string, string, byte, int, int) {
 				rexpat = "^" + rexpat
 			}
 			if rexpat[len(rexpat)-1] != '$' {
-				rexpat = rexpat + "$"
+				rexpat += "$"
 			}
 		}

@ -795,6 +813,7 @@ func (ns nodes) findEdge(label byte) *node {
 }

 // Route describes the details of a routing handler.
+// Handlers map key is an HTTP method
 type Route struct {
 	Pattern   string
 	Handlers  map[string]http.Handler
@ -829,6 +848,7 @@ func walk(r Routes, walkFn WalkFunc, parentRoute string, parentMw ...func(http.H
 			}

 			fullRoute := parentRoute + route.Pattern
+			fullRoute = strings.Replace(fullRoute, "/*/", "/", -1)

 			if chain, ok := handler.(*ChainHandler); ok {
 				if err := walkFn(method, fullRoute, chain.Endpoint, append(mws, chain.Middlewares...)...); err != nil {
--- a/vendor/github.com/gofrs/uuid/.travis.yml
+++ b/vendor/github.com/gofrs/uuid/.travis.yml
@ -1,23 +0,0 @@
-language: go
-sudo: false
-go:
-  - 1.7.x
-  - 1.8.x
-  - 1.9.x
-  - 1.10.x
-  - 1.11.x
-  - tip
-matrix:
-  allow_failures:
-    - go: tip
-  fast_finish: true
-env:
-  - GO111MODULE=on
-before_install:
-  - go get golang.org/x/tools/cmd/cover
-script:
-  - go test ./... -race -coverprofile=coverage.txt -covermode=atomic
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
-notifications:
-  email: false
--- a/vendor/github.com/gofrs/uuid/README.md
+++ b/vendor/github.com/gofrs/uuid/README.md
@ -12,11 +12,18 @@ and parsing of UUIDs in different formats.

 This package supports the following UUID versions:
 * Version 1, based on timestamp and MAC address (RFC-4122)
-* Version 2, based on timestamp, MAC address and POSIX UID/GID (DCE 1.1)
 * Version 3, based on MD5 hashing of a named value (RFC-4122)
 * Version 4, based on random numbers (RFC-4122)
 * Version 5, based on SHA-1 hashing of a named value (RFC-4122)

+This package also supports experimental Universally Unique Identifier implementations based on a
+[draft RFC](https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03) that updates RFC-4122
+* Version 6, a k-sortable id based on timestamp, and field-compatible with v1 (draft-peabody-dispatch-new-uuid-format, RFC-4122)
+* Version 7, a k-sortable id based on timestamp (draft-peabody-dispatch-new-uuid-format, RFC-4122)
+
+The v6 and v7 IDs are **not** considered a part of the stable API, and may be subject to behavior or API changes as part of minor releases
+to this package. They will be updated as the draft RFC changes, and will become stable if and when the draft RFC is accepted.
+
 ## Project History

 This project was originally forked from the
@ -107,3 +114,4 @@ func main() {

 * [RFC-4122](https://tools.ietf.org/html/rfc4122)
 * [DCE 1.1: Authentication and Security Services](http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01)
+* [New UUID Formats RFC Draft (Peabody) Rev 03](https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03)
--- a/vendor/github.com/gofrs/uuid/codec.go
+++ b/vendor/github.com/gofrs/uuid/codec.go
@ -114,7 +114,7 @@ func (u *UUID) UnmarshalText(text []byte) error {
 	case 41, 45:
 		return u.decodeURN(text)
 	default:
-		return fmt.Errorf("uuid: incorrect UUID length: %s", text)
+		return fmt.Errorf("uuid: incorrect UUID length %d in string %q", len(text), text)
 	}
 }

@ -122,7 +122,7 @@ func (u *UUID) UnmarshalText(text []byte) error {
 // "6ba7b810-9dad-11d1-80b4-00c04fd430c8".
 func (u *UUID) decodeCanonical(t []byte) error {
 	if t[8] != '-' || t[13] != '-' || t[18] != '-' || t[23] != '-' {
-		return fmt.Errorf("uuid: incorrect UUID format %s", t)
+		return fmt.Errorf("uuid: incorrect UUID format in string %q", t)
 	}

 	src := t
@ -160,7 +160,7 @@ func (u *UUID) decodeBraced(t []byte) error {
 	l := len(t)

 	if t[0] != '{' || t[l-1] != '}' {
-		return fmt.Errorf("uuid: incorrect UUID format %s", t)
+		return fmt.Errorf("uuid: incorrect UUID format in string %q", t)
 	}

 	return u.decodePlain(t[1 : l-1])
@ -175,7 +175,7 @@ func (u *UUID) decodeURN(t []byte) error {
 	urnUUIDPrefix := t[:9]

 	if !bytes.Equal(urnUUIDPrefix, urnPrefix) {
-		return fmt.Errorf("uuid: incorrect UUID format: %s", t)
+		return fmt.Errorf("uuid: incorrect UUID format in string %q", t)
 	}

 	return u.decodePlain(t[9:total])
@ -191,7 +191,7 @@ func (u *UUID) decodePlain(t []byte) error {
 	case 36:
 		return u.decodeCanonical(t)
 	default:
-		return fmt.Errorf("uuid: incorrect UUID length: %s", t)
+		return fmt.Errorf("uuid: incorrect UUID length %d in string %q", len(t), t)
 	}
 }

--- a/vendor/github.com/gofrs/uuid/generator.go
+++ b/vendor/github.com/gofrs/uuid/generator.go
@ -30,7 +30,6 @@ import (
 	"hash"
 	"io"
 	"net"
-	"os"
 	"sync"
 	"time"
 )
@ -47,21 +46,11 @@ type HWAddrFunc func() (net.HardwareAddr, error)
 // DefaultGenerator is the default UUID Generator used by this package.
 var DefaultGenerator Generator = NewGen()

-var (
-	posixUID = uint32(os.Getuid())
-	posixGID = uint32(os.Getgid())
-)
-
 // NewV1 returns a UUID based on the current timestamp and MAC address.
 func NewV1() (UUID, error) {
 	return DefaultGenerator.NewV1()
 }

-// NewV2 returns a DCE Security UUID based on the POSIX UID/GID.
-func NewV2(domain byte) (UUID, error) {
-	return DefaultGenerator.NewV2(domain)
-}
-
 // NewV3 returns a UUID based on the MD5 hash of the namespace UUID and name.
 func NewV3(ns UUID, name string) UUID {
 	return DefaultGenerator.NewV3(ns, name)
@ -77,13 +66,39 @@ func NewV5(ns UUID, name string) UUID {
 	return DefaultGenerator.NewV5(ns, name)
 }

+// NewV6 returns a k-sortable UUID based on a timestamp and 48 bits of
+// pseudorandom data. The timestamp in a V6 UUID is the same as V1, with the bit
+// order being adjusted to allow the UUID to be k-sortable.
+//
+// This is implemented based on revision 03 of the Peabody UUID draft, and may
+// be subject to change pending further revisions. Until the final specification
+// revision is finished, changes required to implement updates to the spec will
+// not be considered a breaking change. They will happen as a minor version
+// releases until the spec is final.
+func NewV6() (UUID, error) {
+	return DefaultGenerator.NewV6()
+}
+
+// NewV7 returns a k-sortable UUID based on the current millisecond precision
+// UNIX epoch and 74 bits of pseudorandom data.
+//
+// This is implemented based on revision 03 of the Peabody UUID draft, and may
+// be subject to change pending further revisions. Until the final specification
+// revision is finished, changes required to implement updates to the spec will
+// not be considered a breaking change. They will happen as a minor version
+// releases until the spec is final.
+func NewV7() (UUID, error) {
+	return DefaultGenerator.NewV7()
+}
+
 // Generator provides an interface for generating UUIDs.
 type Generator interface {
 	NewV1() (UUID, error)
-	NewV2(domain byte) (UUID, error)
 	NewV3(ns UUID, name string) UUID
 	NewV4() (UUID, error)
 	NewV5(ns UUID, name string) UUID
+	NewV6() (UUID, error)
+	NewV7() (UUID, error)
 }

 // Gen is a reference UUID generator based on the specifications laid out in
@ -164,28 +179,6 @@ func (g *Gen) NewV1() (UUID, error) {
 	return u, nil
 }

-// NewV2 returns a DCE Security UUID based on the POSIX UID/GID.
-func (g *Gen) NewV2(domain byte) (UUID, error) {
-	u, err := g.NewV1()
-	if err != nil {
-		return Nil, err
-	}
-
-	switch domain {
-	case DomainPerson:
-		binary.BigEndian.PutUint32(u[:], posixUID)
-	case DomainGroup:
-		binary.BigEndian.PutUint32(u[:], posixGID)
-	}
-
-	u[9] = domain
-
-	u.SetVersion(V2)
-	u.SetVariant(VariantRFC4122)
-
-	return u, nil
-}
-
 // NewV3 returns a UUID based on the MD5 hash of the namespace UUID and name.
 func (g *Gen) NewV3(ns UUID, name string) UUID {
 	u := newFromHash(md5.New(), ns, name)
@ -216,7 +209,39 @@ func (g *Gen) NewV5(ns UUID, name string) UUID {
 	return u
 }

-// Returns the epoch and clock sequence.
+// NewV6 returns a k-sortable UUID based on a timestamp and 48 bits of
+// pseudorandom data. The timestamp in a V6 UUID is the same as V1, with the bit
+// order being adjusted to allow the UUID to be k-sortable.
+//
+// This is implemented based on revision 03 of the Peabody UUID draft, and may
+// be subject to change pending further revisions. Until the final specification
+// revision is finished, changes required to implement updates to the spec will
+// not be considered a breaking change. They will happen as a minor version
+// releases until the spec is final.
+func (g *Gen) NewV6() (UUID, error) {
+	var u UUID
+
+	if _, err := io.ReadFull(g.rand, u[10:]); err != nil {
+		return Nil, err
+	}
+
+	timeNow, clockSeq, err := g.getClockSequence()
+	if err != nil {
+		return Nil, err
+	}
+
+	binary.BigEndian.PutUint32(u[0:], uint32(timeNow>>28))   // set time_high
+	binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>12))   // set time_mid
+	binary.BigEndian.PutUint16(u[6:], uint16(timeNow&0xfff)) // set time_low (minus four version bits)
+	binary.BigEndian.PutUint16(u[8:], clockSeq&0x3fff)       // set clk_seq_hi_res (minus two variant bits)
+
+	u.SetVersion(V6)
+	u.SetVariant(VariantRFC4122)
+
+	return u, nil
+}
+
+// getClockSequence returns the epoch and clock sequence for V1 and V6 UUIDs.
 func (g *Gen) getClockSequence() (uint64, uint16, error) {
 	var err error
 	g.clockSequenceOnce.Do(func() {
@ -244,6 +269,36 @@ func (g *Gen) getClockSequence() (uint64, uint16, error) {
 	return timeNow, g.clockSequence, nil
 }

+// NewV7 returns a k-sortable UUID based on the current millisecond precision
+// UNIX epoch and 74 bits of pseudorandom data.
+//
+// This is implemented based on revision 03 of the Peabody UUID draft, and may
+// be subject to change pending further revisions. Until the final specification
+// revision is finished, changes required to implement updates to the spec will
+// not be considered a breaking change. They will happen as a minor version
+// releases until the spec is final.
+func (g *Gen) NewV7() (UUID, error) {
+	var u UUID
+
+	if _, err := io.ReadFull(g.rand, u[6:]); err != nil {
+		return Nil, err
+	}
+
+	tn := g.epochFunc()
+	ms := uint64(tn.Unix())*1e3 + uint64(tn.Nanosecond())/1e6
+	u[0] = byte(ms >> 40)
+	u[1] = byte(ms >> 32)
+	u[2] = byte(ms >> 24)
+	u[3] = byte(ms >> 16)
+	u[4] = byte(ms >> 8)
+	u[5] = byte(ms)
+
+	u.SetVersion(V7)
+	u.SetVariant(VariantRFC4122)
+
+	return u, nil
+}
+
 // Returns the hardware address.
 func (g *Gen) getHardwareAddr() ([]byte, error) {
 	var err error
@ -284,9 +339,11 @@ func newFromHash(h hash.Hash, ns UUID, name string) UUID {
 	return u
 }

+var netInterfaces = net.Interfaces
+
 // Returns the hardware address.
 func defaultHWAddrFunc() (net.HardwareAddr, error) {
-	ifaces, err := net.Interfaces()
+	ifaces, err := netInterfaces()
 	if err != nil {
 		return []byte{}, err
 	}
--- a/vendor/github.com/gofrs/uuid/uuid.go
+++ b/vendor/github.com/gofrs/uuid/uuid.go
@ -19,20 +19,33 @@
 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

-// Package uuid provides implementations of the Universally Unique Identifier (UUID), as specified in RFC-4122 and DCE 1.1.
+// Package uuid provides implementations of the Universally Unique Identifier
+// (UUID), as specified in RFC-4122 and the Peabody RFC Draft (revision 03).
 //
-// RFC-4122[1] provides the specification for versions 1, 3, 4, and 5.
+// RFC-4122[1] provides the specification for versions 1, 3, 4, and 5. The
+// Peabody UUID RFC Draft[2] provides the specification for the new k-sortable
+// UUIDs, versions 6 and 7.
 //
-// DCE 1.1[2] provides the specification for version 2.
+// DCE 1.1[3] provides the specification for version 2, but version 2 support
+// was removed from this package in v4 due to some concerns with the
+// specification itself. Reading the spec, it seems that it would result in
+// generating UUIDs that aren't very unique. In having read the spec it seemed
+// that our implementation did not meet the spec. It also seems to be at-odds
+// with RFC 4122, meaning we would need quite a bit of special code to support
+// it. Lastly, there were no Version 2 implementations that we could find to
+// ensure we were understanding the specification correctly.
 //
 // [1] https://tools.ietf.org/html/rfc4122
-// [2] http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01
+// [2] https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03
+// [3] http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01
 package uuid

 import (
 	"encoding/binary"
 	"encoding/hex"
 	"fmt"
+	"io"
+	"strings"
 	"time"
 )

@ -46,10 +59,13 @@ type UUID [Size]byte
 const (
 	_  byte = iota
 	V1      // Version 1 (date-time and MAC address)
-	V2      // Version 2 (date-time and MAC address, DCE security version)
+	_       // Version 2 (date-time and MAC address, DCE security version) [removed]
 	V3      // Version 3 (namespace name-based)
 	V4      // Version 4 (random)
 	V5      // Version 5 (namespace name-based)
+	V6      // Version 6 (k-sortable timestamp and random data, field-compatible with v1) [peabody draft]
+	V7      // Version 7 (k-sortable timestamp and random data) [peabody draft]
+	_       // Version 8 (k-sortable timestamp, meant for custom implementations) [peabody draft] [not implemented]
 )

 // UUID layout variants.
@ -68,8 +84,8 @@ const (
 )

 // Timestamp is the count of 100-nanosecond intervals since 00:00:00.00,
-// 15 October 1582 within a V1 UUID. This type has no meaning for V2-V5
-// UUIDs since they don't have an embedded timestamp.
+// 15 October 1582 within a V1 UUID. This type has no meaning for other
+// UUID versions since they don't have an embedded timestamp.
 type Timestamp uint64

 const _100nsPerSecond = 10000000
@ -78,6 +94,7 @@ const _100nsPerSecond = 10000000
 func (t Timestamp) Time() (time.Time, error) {
 	secs := uint64(t) / _100nsPerSecond
 	nsecs := 100 * (uint64(t) % _100nsPerSecond)
+
 	return time.Unix(int64(secs)-(epochStart/_100nsPerSecond), int64(nsecs)), nil
 }

@ -88,12 +105,34 @@ func TimestampFromV1(u UUID) (Timestamp, error) {
 		err := fmt.Errorf("uuid: %s is version %d, not version 1", u, u.Version())
 		return 0, err
 	}
+
 	low := binary.BigEndian.Uint32(u[0:4])
 	mid := binary.BigEndian.Uint16(u[4:6])
 	hi := binary.BigEndian.Uint16(u[6:8]) & 0xfff
+
 	return Timestamp(uint64(low) + (uint64(mid) << 32) + (uint64(hi) << 48)), nil
 }

+// TimestampFromV6 returns the Timestamp embedded within a V6 UUID. This
+// function returns an error if the UUID is any version other than 6.
+//
+// This is implemented based on revision 03 of the Peabody UUID draft, and may
+// be subject to change pending further revisions. Until the final specification
+// revision is finished, changes required to implement updates to the spec will
+// not be considered a breaking change. They will happen as a minor version
+// releases until the spec is final.
+func TimestampFromV6(u UUID) (Timestamp, error) {
+	if u.Version() != 6 {
+		return 0, fmt.Errorf("uuid: %s is version %d, not version 6", u, u.Version())
+	}
+
+	hi := binary.BigEndian.Uint32(u[0:4])
+	mid := binary.BigEndian.Uint16(u[4:6])
+	low := binary.BigEndian.Uint16(u[6:8]) & 0xfff
+
+	return Timestamp(uint64(low) + (uint64(mid) << 12) + (uint64(hi) << 28)), nil
+}
+
 // String parse helpers.
 var (
 	urnPrefix  = []byte("urn:uuid:")
@ -112,6 +151,11 @@ var (
 	NamespaceX500 = Must(FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8"))
 )

+// IsNil returns if the UUID is equal to the nil UUID
+func (u UUID) IsNil() bool {
+	return u == Nil
+}
+
 // Version returns the algorithm version used to generate the UUID.
 func (u UUID) Version() byte {
 	return u[6] >> 4
@ -156,6 +200,65 @@ func (u UUID) String() string {
 	return string(buf)
 }

+// Format implements fmt.Formatter for UUID values.
+//
+// The behavior is as follows:
+// The 'x' and 'X' verbs output only the hex digits of the UUID, using a-f for 'x' and A-F for 'X'.
+// The 'v', '+v', 's' and 'q' verbs return the canonical RFC-4122 string representation.
+// The 'S' verb returns the RFC-4122 format, but with capital hex digits.
+// The '#v' verb returns the "Go syntax" representation, which is a 16 byte array initializer.
+// All other verbs not handled directly by the fmt package (like '%p') are unsupported and will return
+// "%!verb(uuid.UUID=value)" as recommended by the fmt package.
+func (u UUID) Format(f fmt.State, c rune) {
+	switch c {
+	case 'x', 'X':
+		s := hex.EncodeToString(u.Bytes())
+		if c == 'X' {
+			s = strings.Map(toCapitalHexDigits, s)
+		}
+		_, _ = io.WriteString(f, s)
+	case 'v':
+		var s string
+		if f.Flag('#') {
+			s = fmt.Sprintf("%#v", [Size]byte(u))
+		} else {
+			s = u.String()
+		}
+		_, _ = io.WriteString(f, s)
+	case 's', 'S':
+		s := u.String()
+		if c == 'S' {
+			s = strings.Map(toCapitalHexDigits, s)
+		}
+		_, _ = io.WriteString(f, s)
+	case 'q':
+		_, _ = io.WriteString(f, `"`+u.String()+`"`)
+	default:
+		// invalid/unsupported format verb
+		fmt.Fprintf(f, "%%!%c(uuid.UUID=%s)", c, u.String())
+	}
+}
+
+func toCapitalHexDigits(ch rune) rune {
+	// convert a-f hex digits to A-F
+	switch ch {
+	case 'a':
+		return 'A'
+	case 'b':
+		return 'B'
+	case 'c':
+		return 'C'
+	case 'd':
+		return 'D'
+	case 'e':
+		return 'E'
+	case 'f':
+		return 'F'
+	default:
+		return ch
+	}
+}
+
 // SetVersion sets the version bits.
 func (u *UUID) SetVersion(v byte) {
 	u[6] = (u[6] & 0x0f) | (v << 4)
--- a/vendor/github.com/gorilla/mux/README.md
+++ b/vendor/github.com/gorilla/mux/README.md
@ -1,11 +1,10 @@
 # gorilla/mux

 [![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
-[![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
 [![CircleCI](https://circleci.com/gh/gorilla/mux.svg?style=svg)](https://circleci.com/gh/gorilla/mux)
 [![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)

-![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
+![Gorilla Logo](https://cloud-cdn.questionable.services/gorilla-icon-64.png)

 https://www.gorillatoolkit.org/pkg/mux

@ -26,6 +25,7 @@ The name mux stands for "HTTP request multiplexer". Like the standard `http.Serv
 * [Examples](#examples)
 * [Matching Routes](#matching-routes)
 * [Static Files](#static-files)
+* [Serving Single Page Applications](#serving-single-page-applications) (e.g. React, Vue, Ember.js, etc.)
 * [Registered URLs](#registered-urls)
 * [Walking Routes](#walking-routes)
 * [Graceful Shutdown](#graceful-shutdown)
@ -212,6 +212,93 @@ func main() {
 }
 ```

+### Serving Single Page Applications
+
+Most of the time it makes sense to serve your SPA on a separate web server from your API,
+but sometimes it's desirable to serve them both from one place. It's possible to write a simple
+handler for serving your SPA (for use with React Router's [BrowserRouter](https://reacttraining.com/react-router/web/api/BrowserRouter) for example), and leverage
+mux's powerful routing for your API endpoints.
+
+```go
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/gorilla/mux"
+)
+
+// spaHandler implements the http.Handler interface, so we can use it
+// to respond to HTTP requests. The path to the static directory and
+// path to the index file within that static directory are used to
+// serve the SPA in the given static directory.
+type spaHandler struct {
+	staticPath string
+	indexPath  string
+}
+
+// ServeHTTP inspects the URL path to locate a file within the static dir
+// on the SPA handler. If a file is found, it will be served. If not, the
+// file located at the index path on the SPA handler will be served. This
+// is suitable behavior for serving an SPA (single page application).
+func (h spaHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+    // get the absolute path to prevent directory traversal
+	path, err := filepath.Abs(r.URL.Path)
+	if err != nil {
+        // if we failed to get the absolute path respond with a 400 bad request
+        // and stop
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+    // prepend the path with the path to the static directory
+	path = filepath.Join(h.staticPath, path)
+
+    // check whether a file exists at the given path
+	_, err = os.Stat(path)
+	if os.IsNotExist(err) {
+		// file does not exist, serve index.html
+		http.ServeFile(w, r, filepath.Join(h.staticPath, h.indexPath))
+		return
+	} else if err != nil {
+        // if we got an error (that wasn't that the file doesn't exist) stating the
+        // file, return a 500 internal server error and stop
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+    // otherwise, use http.FileServer to serve the static dir
+	http.FileServer(http.Dir(h.staticPath)).ServeHTTP(w, r)
+}
+
+func main() {
+	router := mux.NewRouter()
+
+	router.HandleFunc("/api/health", func(w http.ResponseWriter, r *http.Request) {
+		// an example API handler
+		json.NewEncoder(w).Encode(map[string]bool{"ok": true})
+	})
+
+	spa := spaHandler{staticPath: "build", indexPath: "index.html"}
+	router.PathPrefix("/").Handler(spa)
+
+	srv := &http.Server{
+		Handler: router,
+		Addr:    "127.0.0.1:8000",
+		// Good practice: enforce timeouts for servers you create!
+		WriteTimeout: 15 * time.Second,
+		ReadTimeout:  15 * time.Second,
+	}
+
+	log.Fatal(srv.ListenAndServe())
+}
+```
+
 ### Registered URLs

 Now let's see how to build registered URLs.
--- a/vendor/github.com/gorilla/mux/context.go
+++ b/vendor/github.com/gorilla/mux/context.go
@ -1,18 +0,0 @@
-package mux
-
-import (
-	"context"
-	"net/http"
-)
-
-func contextGet(r *http.Request, key interface{}) interface{} {
-	return r.Context().Value(key)
-}
-
-func contextSet(r *http.Request, key, val interface{}) *http.Request {
-	if val == nil {
-		return r
-	}
-
-	return r.WithContext(context.WithValue(r.Context(), key, val))
-}
--- a/vendor/github.com/gorilla/mux/go.mod
+++ b/vendor/github.com/gorilla/mux/go.mod
@ -1 +0,0 @@
-module github.com/gorilla/mux
--- a/vendor/github.com/gorilla/mux/middleware.go
+++ b/vendor/github.com/gorilla/mux/middleware.go
@ -58,22 +58,17 @@ func CORSMethodMiddleware(r *Router) MiddlewareFunc {
 func getAllMethodsForRoute(r *Router, req *http.Request) ([]string, error) {
 	var allMethods []string

-	err := r.Walk(func(route *Route, _ *Router, _ []*Route) error {
-		for _, m := range route.matchers {
-			if _, ok := m.(*routeRegexp); ok {
-				if m.Match(req, &RouteMatch{}) {
-					methods, err := route.GetMethods()
-					if err != nil {
-						return err
-					}
-
-					allMethods = append(allMethods, methods...)
-				}
-				break
+	for _, route := range r.routes {
+		var match RouteMatch
+		if route.Match(req, &match) || match.MatchErr == ErrMethodMismatch {
+			methods, err := route.GetMethods()
+			if err != nil {
+				return nil, err
 			}
-		}
-		return nil
-	})

-	return allMethods, err
+			allMethods = append(allMethods, methods...)
+		}
+	}
+
+	return allMethods, nil
 }
--- a/vendor/github.com/gorilla/mux/mux.go
+++ b/vendor/github.com/gorilla/mux/mux.go
@ -5,6 +5,7 @@
 package mux

 import (
+	"context"
 	"errors"
 	"fmt"
 	"net/http"
@ -58,8 +59,7 @@ type Router struct {

 	// If true, do not clear the request context after handling the request.
 	//
-	// Deprecated: No effect when go1.7+ is used, since the context is stored
-	// on the request itself.
+	// Deprecated: No effect, since the context is stored on the request itself.
 	KeepContext bool

 	// Slice of middlewares to be called after a match is found
@ -111,10 +111,8 @@ func copyRouteConf(r routeConf) routeConf {
 		c.regexp.queries = append(c.regexp.queries, copyRouteRegexp(q))
 	}

-	c.matchers = make([]matcher, 0, len(r.matchers))
-	for _, m := range r.matchers {
-		c.matchers = append(c.matchers, m)
-	}
+	c.matchers = make([]matcher, len(r.matchers))
+	copy(c.matchers, r.matchers)

 	return c
 }
@ -197,8 +195,8 @@ func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	var handler http.Handler
 	if r.Match(req, &match) {
 		handler = match.Handler
-		req = setVars(req, match.Vars)
-		req = setCurrentRoute(req, match.Route)
+		req = requestWithVars(req, match.Vars)
+		req = requestWithRoute(req, match.Route)
 	}

 	if handler == nil && match.MatchErr == ErrMethodMismatch {
@ -428,7 +426,7 @@ const (

 // Vars returns the route variables for the current request, if any.
 func Vars(r *http.Request) map[string]string {
-	if rv := contextGet(r, varsKey); rv != nil {
+	if rv := r.Context().Value(varsKey); rv != nil {
 		return rv.(map[string]string)
 	}
 	return nil
@ -437,21 +435,22 @@ func Vars(r *http.Request) map[string]string {
 // CurrentRoute returns the matched route for the current request, if any.
 // This only works when called inside the handler of the matched route
 // because the matched route is stored in the request context which is cleared
-// after the handler returns, unless the KeepContext option is set on the
-// Router.
+// after the handler returns.
 func CurrentRoute(r *http.Request) *Route {
-	if rv := contextGet(r, routeKey); rv != nil {
+	if rv := r.Context().Value(routeKey); rv != nil {
 		return rv.(*Route)
 	}
 	return nil
 }

-func setVars(r *http.Request, val interface{}) *http.Request {
-	return contextSet(r, varsKey, val)
+func requestWithVars(r *http.Request, vars map[string]string) *http.Request {
+	ctx := context.WithValue(r.Context(), varsKey, vars)
+	return r.WithContext(ctx)
 }

-func setCurrentRoute(r *http.Request, val interface{}) *http.Request {
-	return contextSet(r, routeKey, val)
+func requestWithRoute(r *http.Request, route *Route) *http.Request {
+	ctx := context.WithValue(r.Context(), routeKey, route)
+	return r.WithContext(ctx)
 }

 // ----------------------------------------------------------------------------
--- a/vendor/github.com/gorilla/mux/regexp.go
+++ b/vendor/github.com/gorilla/mux/regexp.go
@ -181,21 +181,21 @@ func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool {
 			}
 		}
 		return r.regexp.MatchString(host)
-	} else {
-		if r.regexpType == regexpTypeQuery {
-			return r.matchQueryString(req)
-		}
-		path := req.URL.Path
-		if r.options.useEncodedPath {
-			path = req.URL.EscapedPath()
-		}
-		return r.regexp.MatchString(path)
 	}
+
+	if r.regexpType == regexpTypeQuery {
+		return r.matchQueryString(req)
+	}
+	path := req.URL.Path
+	if r.options.useEncodedPath {
+		path = req.URL.EscapedPath()
+	}
+	return r.regexp.MatchString(path)
 }

 // url builds a URL part using the given values.
 func (r *routeRegexp) url(values map[string]string) (string, error) {
-	urlValues := make([]interface{}, len(r.varsN))
+	urlValues := make([]interface{}, len(r.varsN), len(r.varsN))
 	for k, v := range r.varsN {
 		value, ok := values[v]
 		if !ok {
@ -230,14 +230,51 @@ func (r *routeRegexp) getURLQuery(req *http.Request) string {
 		return ""
 	}
 	templateKey := strings.SplitN(r.template, "=", 2)[0]
-	for key, vals := range req.URL.Query() {
-		if key == templateKey && len(vals) > 0 {
-			return key + "=" + vals[0]
-		}
+	val, ok := findFirstQueryKey(req.URL.RawQuery, templateKey)
+	if ok {
+		return templateKey + "=" + val
 	}
 	return ""
 }

+// findFirstQueryKey returns the same result as (*url.URL).Query()[key][0].
+// If key was not found, empty string and false is returned.
+func findFirstQueryKey(rawQuery, key string) (value string, ok bool) {
+	query := []byte(rawQuery)
+	for len(query) > 0 {
+		foundKey := query
+		if i := bytes.IndexAny(foundKey, "&;"); i >= 0 {
+			foundKey, query = foundKey[:i], foundKey[i+1:]
+		} else {
+			query = query[:0]
+		}
+		if len(foundKey) == 0 {
+			continue
+		}
+		var value []byte
+		if i := bytes.IndexByte(foundKey, '='); i >= 0 {
+			foundKey, value = foundKey[:i], foundKey[i+1:]
+		}
+		if len(foundKey) < len(key) {
+			// Cannot possibly be key.
+			continue
+		}
+		keyString, err := url.QueryUnescape(string(foundKey))
+		if err != nil {
+			continue
+		}
+		if keyString != key {
+			continue
+		}
+		valueString, err := url.QueryUnescape(string(value))
+		if err != nil {
+			continue
+		}
+		return valueString, true
+	}
+	return "", false
+}
+
 func (r *routeRegexp) matchQueryString(req *http.Request) bool {
 	return r.regexp.MatchString(r.getURLQuery(req))
 }
@ -288,6 +325,12 @@ func (v routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) {
 	// Store host variables.
 	if v.host != nil {
 		host := getHost(req)
+		if v.host.wildcardHostPort {
+			// Don't be strict on the port match
+			if i := strings.Index(host, ":"); i != -1 {
+				host = host[:i]
+			}
+		}
 		matches := v.host.regexp.FindStringSubmatchIndex(host)
 		if len(matches) > 0 {
 			extractVars(host, matches, v.host.varsN, m.Vars)
--- a/vendor/github.com/gorilla/mux/route.go
+++ b/vendor/github.com/gorilla/mux/route.go
@ -74,7 +74,7 @@ func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
 		return false
 	}

-	if match.MatchErr == ErrMethodMismatch {
+	if match.MatchErr == ErrMethodMismatch && r.handler != nil {
 		// We found a route which matches request method, clear MatchErr
 		match.MatchErr = nil
 		// Then override the mis-matched handler
@ -412,11 +412,30 @@ func (r *Route) Queries(pairs ...string) *Route {
 type schemeMatcher []string

 func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool {
-	return matchInArray(m, r.URL.Scheme)
+	scheme := r.URL.Scheme
+	// https://golang.org/pkg/net/http/#Request
+	// "For [most] server requests, fields other than Path and RawQuery will be
+	// empty."
+	// Since we're an http muxer, the scheme is either going to be http or https
+	// though, so we can just set it based on the tls termination state.
+	if scheme == "" {
+		if r.TLS == nil {
+			scheme = "http"
+		} else {
+			scheme = "https"
+		}
+	}
+	return matchInArray(m, scheme)
 }

 // Schemes adds a matcher for URL schemes.
 // It accepts a sequence of schemes to be matched, e.g.: "http", "https".
+// If the request's URL has a scheme set, it will be matched against.
+// Generally, the URL scheme will only be set if a previous handler set it,
+// such as the ProxyHeaders handler from gorilla/handlers.
+// If unset, the scheme will be determined based on the request's TLS
+// termination state.
+// The first argument to Schemes will be used when constructing a route URL.
 func (r *Route) Schemes(schemes ...string) *Route {
 	for k, v := range schemes {
 		schemes[k] = strings.ToLower(v)
@ -493,8 +512,8 @@ func (r *Route) Subrouter() *Router {
 // This also works for host variables:
 //
 //     r := mux.NewRouter()
-//     r.Host("{subdomain}.domain.com").
-//       HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
+//     r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
+//       Host("{subdomain}.domain.com").
 //       Name("article")
 //
 //     // url.String() will be "http://news.domain.com/articles/technology/42"
@ -502,6 +521,13 @@ func (r *Route) Subrouter() *Router {
 //                                      "category", "technology",
 //                                      "id", "42")
 //
+// The scheme of the resulting url will be the first argument that was passed to Schemes:
+//
+//     // url.String() will be "https://example.com"
+//     r := mux.NewRouter()
+//     url, err := r.Host("example.com")
+//                  .Schemes("https", "http").URL()
+//
 // All variables defined in the route are required, and their values must
 // conform to the corresponding patterns.
 func (r *Route) URL(pairs ...string) (*url.URL, error) {
@ -635,7 +661,7 @@ func (r *Route) GetQueriesRegexp() ([]string, error) {
 	if r.regexp.queries == nil {
 		return nil, errors.New("mux: route doesn't have queries")
 	}
-	var queries []string
+	queries := make([]string, 0, len(r.regexp.queries))
 	for _, query := range r.regexp.queries {
 		queries = append(queries, query.regexp.String())
 	}
@ -654,7 +680,7 @@ func (r *Route) GetQueriesTemplates() ([]string, error) {
 	if r.regexp.queries == nil {
 		return nil, errors.New("mux: route doesn't have queries")
 	}
-	var queries []string
+	queries := make([]string, 0, len(r.regexp.queries))
 	for _, query := range r.regexp.queries {
 		queries = append(queries, query.template)
 	}
--- a/vendor/github.com/gorilla/mux/test_helpers.go
+++ b/vendor/github.com/gorilla/mux/test_helpers.go
@ -15,5 +15,5 @@ import "net/http"
 // can be set by making a route that captures the required variables,
 // starting a server and sending the request to that server.
 func SetURLVars(r *http.Request, val map[string]string) *http.Request {
-	return setVars(r, val)
+	return requestWithVars(r, val)
 }