70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package http
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"go.unistack.org/micro/v3/metadata"
|
|
"go.unistack.org/micro/v3/selector/random"
|
|
)
|
|
|
|
// Write sets the status and body on a http ResponseWriter
|
|
func Write(w http.ResponseWriter, contentType string, status int, body string) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%v", len(body)))
|
|
w.Header().Set("Content-Type", contentType)
|
|
w.WriteHeader(status)
|
|
fmt.Fprintf(w, `%v`, body)
|
|
}
|
|
|
|
// WriteBadRequestError sets a 400 status code
|
|
func WriteBadRequestError(w http.ResponseWriter, err error) {
|
|
rawBody, err := json.Marshal(map[string]string{
|
|
"error": err.Error(),
|
|
})
|
|
if err != nil {
|
|
WriteInternalServerError(w, err)
|
|
return
|
|
}
|
|
Write(w, "application/json", 400, string(rawBody))
|
|
}
|
|
|
|
// WriteInternalServerError sets a 500 status code
|
|
func WriteInternalServerError(w http.ResponseWriter, err error) {
|
|
rawBody, err := json.Marshal(map[string]string{
|
|
"error": err.Error(),
|
|
})
|
|
if err != nil {
|
|
log.Println(err)
|
|
return
|
|
}
|
|
Write(w, "application/json", 500, string(rawBody))
|
|
}
|
|
|
|
// NewRoundTripper creates new http RoundTripper
|
|
func NewRoundTripper(opts ...Option) http.RoundTripper {
|
|
options := Options{}
|
|
for _, o := range opts {
|
|
o(&options)
|
|
}
|
|
|
|
return &roundTripper{
|
|
rt: http.DefaultTransport,
|
|
st: random.NewSelector(),
|
|
opts: options,
|
|
}
|
|
}
|
|
|
|
// RequestToContext puts the `Authorization` header bearer token into context
|
|
// so calls to services will be authorized.
|
|
func RequestToContext(r *http.Request) context.Context {
|
|
md := metadata.New(len(r.Header))
|
|
for k, v := range r.Header {
|
|
md.Set(k, strings.Join(v, ","))
|
|
}
|
|
return metadata.NewIncomingContext(r.Context(), md)
|
|
}
|