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homebox/backend/internal/web/adapters/query.go
2023-04-09 10:39:43 -08:00

73 lines
1.5 KiB
Go

package adapters
import (
"net/http"
"github.com/hay-kot/httpkit/errchain"
"github.com/hay-kot/httpkit/server"
)
// Query is a server.Handler that decodes a query from the request and calls the provided function.
//
// Example:
//
// type Query struct {
// Foo string `schema:"foo"`
// }
//
// fn := func(r *http.Request, q Query) (any, error) {
// // do something with q
// return nil, nil
// }
//
// r.Get("/foo", adapters.Query(fn, http.StatusOK))
func Query[T any, Y any](f AdapterFunc[T, Y], ok int) errchain.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) error {
q, err := DecodeQuery[T](r)
if err != nil {
return err
}
res, err := f(r, q)
if err != nil {
return err
}
return server.JSON(w, ok, res)
}
}
// QueryID is a server.Handler that decodes a query and an ID from the request and calls the provided function.
//
// Example:
//
// type Query struct {
// Foo string `schema:"foo"`
// }
//
// fn := func(r *http.Request, ID uuid.UUID, q Query) (any, error) {
// // do something with ID and q
// return nil, nil
// }
//
// r.Get("/foo/{id}", adapters.QueryID(fn, http.StatusOK))
func QueryID[T any, Y any](param string, f IDFunc[T, Y], ok int) errchain.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) error {
ID, err := RouteUUID(r, param)
if err != nil {
return err
}
q, err := DecodeQuery[T](r)
if err != nil {
return err
}
res, err := f(r, ID, q)
if err != nil {
return err
}
return server.JSON(w, ok, res)
}
}