Changed product catalog to use json, so that it slows down and generates nice profiles
This commit is contained in:
morganmclean
parent
2713f47bbb
commit
dbc9523cea
1 changed files with 128 additions and 75 deletions
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@ -10,7 +10,9 @@ import (
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"time"
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pb "./genproto"
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"cloud.google.com/go/profiler"
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"github.com/golang/protobuf/jsonpb"
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"go.opencensus.io/exporter/stackdriver"
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"go.opencensus.io/plugin/ocgrpc"
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"go.opencensus.io/trace"
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@ -21,71 +23,107 @@ import (
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var port = flag.Int("port", 3550, "port to listen at")
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var catalog = []*pb.Product{
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const catalogJSON = `{
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"products": [
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{
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Id: "OLJCESPC7Z",
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Name: "Vintage Typewriter",
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Description: "This typewriter looks good in your living room.",
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Picture: "/static/img/products/typewriter.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 67, Nanos: 990000000},
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},
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{
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Id: "66VCHSJNUP",
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Name: "Vintage Camera Lens",
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Description: "You won't have a camera to use it and it probably doesn't work anyway.",
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Picture: "/static/img/products/camera-lens.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 12, Nanos: 490000000},
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},
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{
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Id: "1YMWWN1N4O",
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Name: "Home Barista Kit",
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Description: "Always wanted to brew coffee with Chemex and Aeropress at home?",
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Picture: "/static/img/products/barista-kit.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 124, Nanos: 0},
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},
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{
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Id: "L9ECAV7KIM",
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Name: "Terrarium",
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Description: "This terrarium will looks great in your white painted living room.",
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Picture: "/static/img/products/terrarium.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 36, Nanos: 450000000},
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},
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{
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Id: "2ZYFJ3GM2N",
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Name: "Film Camera",
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Description: "This camera looks like it's a film camera, but it's actually digital.",
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Picture: "/static/img/products/film-camera.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 2245, Nanos: 00000000},
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},
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{
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Id: "0PUK6V6EV0",
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Name: "Vintage Record Player",
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Description: "It still works.",
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Picture: "/static/img/products/record-player.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 65, Nanos: 500000000},
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},
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{
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Id: "LS4PSXUNUM",
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Name: "Metal Camping Mug",
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Description: "You probably don't go camping that often but this is better than plastic cups.",
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Picture: "/static/img/products/camp-mug.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 24, Nanos: 330000000},
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},
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{
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Id: "9SIQT8TOJO",
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Name: "City Bike",
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Description: "This single gear bike probably cannot climb the hills of San Francisco.",
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Picture: "/static/img/products/city-bike.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 789, Nanos: 500000000},
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},
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{
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Id: "6E92ZMYYFZ",
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Name: "Air Plant",
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Description: "Have you ever wondered whether air plants need water? Buy one and figure out.",
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Picture: "/static/img/products/air-plant.jpg",
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PriceUsd: &pb.Money{CurrencyCode: "USD", Units: 12, Nanos: 300000000},
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},
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"id": "OLJCESPC7Z",
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"name": "Vintage Typewriter",
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"description": "This typewriter looks good in your living room.",
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"picture": "/static/img/products/typewriter.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 67,
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"nanos": 990000000
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}
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},
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{
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"id": "66VCHSJNUP",
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"name": "Vintage Camera Lens",
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"description": "You won't have a camera to use it and it probably doesn't work anyway.",
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"picture": "/static/img/products/camera-lens.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 12,
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"nanos": 490000000
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}
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},
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{
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"id": "1YMWWN1N4O",
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"name": "Home Barista Kit",
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"description": "Always wanted to brew coffee with Chemex and Aeropress at home?",
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"picture": "/static/img/products/barista-kit.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 124
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}
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},
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{
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"id": "L9ECAV7KIM",
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"name": "Terrarium",
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"description": "This terrarium will looks great in your white painted living room.",
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"picture": "/static/img/products/terrarium.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 36,
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"nanos": 450000000
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}
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},
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{
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"id": "2ZYFJ3GM2N",
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"name": "Film Camera",
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"description": "This camera looks like it's a film camera, but it's actually digital.",
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"picture": "/static/img/products/film-camera.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 2245
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}
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},
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{
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"id": "0PUK6V6EV0",
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"name": "Vintage Record Player",
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"description": "It still works.",
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"picture": "/static/img/products/record-player.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 65,
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"nanos": 500000000
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}
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},
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{
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"id": "LS4PSXUNUM",
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"name": "Metal Camping Mug",
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"description": "You probably don't go camping that often but this is better than plastic cups.",
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"picture": "/static/img/products/camp-mug.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 24,
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"nanos": 330000000
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}
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},
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{
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"id": "9SIQT8TOJO",
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"name": "City Bike",
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"description": "This single gear bike probably cannot climb the hills of San Francisco.",
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"picture": "/static/img/products/city-bike.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 789,
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"nanos": 500000000
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}
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},
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{
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"id": "6E92ZMYYFZ",
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"name": "Air Plant",
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"description": "Have you ever wondered whether air plants need water? Buy one and figure out.",
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"picture": "/static/img/products/air-plant.jpg",
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"priceUsd": {
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"currencyCode": "USD",
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"units": 12,
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"nanos": 300000000
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}
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}
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]
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}`
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func main() {
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go initTracing()
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@ -136,36 +174,51 @@ func initProfiling(service, version string) {
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Service: service,
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ServiceVersion: version,
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// ProjectID must be set if not running on GCP.
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// ProjectID: "my-project",
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ProjectID: "oval-time-515",
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}); err != nil {
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log.Printf("warn: failed to start profiler: %+v", err)
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}
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d := time.Second * 10 * time.Duration(i)
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log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
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time.Sleep(d)
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continue
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}
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return
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}
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log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
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}
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type productCatalog struct{}
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func (p *productCatalog) catalog() []*pb.Product {
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var cat pb.ListProductsResponse
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if err := jsonpb.UnmarshalString(catalogJSON, &cat); err != nil {
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log.Printf("warning: failed to parse the product catalog: %v", err)
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return nil
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}
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return cat.Products
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}
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func (p *productCatalog) ListProducts(context.Context, *pb.Empty) (*pb.ListProductsResponse, error) {
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return &pb.ListProductsResponse{Products: catalog}, nil
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return &pb.ListProductsResponse{Products: p.catalog()}, nil
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}
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func (p *productCatalog) GetProduct(ctx context.Context, req *pb.GetProductRequest) (*pb.Product, error) {
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for _, p := range catalog {
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if req.Id == p.Id {
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return p, nil
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var found *pb.Product
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for i := 0; i < len(p.catalog()); i++ {
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if req.Id == p.catalog()[i].Id {
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found = p.catalog()[i]
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}
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}
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if found == nil {
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return nil, status.Errorf(codes.NotFound, "no product with ID %s", req.Id)
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}
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return found, nil
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}
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func (p *productCatalog) SearchProducts(ctx context.Context, req *pb.SearchProductsRequest) (*pb.SearchProductsResponse, error) {
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// Intepret query as a substring match in name or description.
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var ps []*pb.Product
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for _, p := range catalog {
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for _, p := range p.catalog() {
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if strings.Contains(strings.ToLower(p.Name), strings.ToLower(req.Query)) ||
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strings.Contains(strings.ToLower(p.Description), strings.ToLower(req.Query)) {
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ps = append(ps, p)
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