70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package http
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import (
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"context"
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"strings"
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"go.unistack.org/micro/v4/metadata"
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"go.unistack.org/micro/v4/selector/random"
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)
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// Write sets the status and body on a http ResponseWriter
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func Write(w http.ResponseWriter, contentType string, status int, body string) {
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w.Header().Set("Content-Length", fmt.Sprintf("%v", len(body)))
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w.Header().Set("Content-Type", contentType)
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w.WriteHeader(status)
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fmt.Fprintf(w, `%v`, body)
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}
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// WriteBadRequestError sets a 400 status code
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func WriteBadRequestError(w http.ResponseWriter, err error) {
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rawBody, err := json.Marshal(map[string]string{
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"error": err.Error(),
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})
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if err != nil {
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WriteInternalServerError(w, err)
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return
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}
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Write(w, "application/json", 400, string(rawBody))
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}
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// WriteInternalServerError sets a 500 status code
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func WriteInternalServerError(w http.ResponseWriter, err error) {
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rawBody, err := json.Marshal(map[string]string{
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"error": err.Error(),
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})
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if err != nil {
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log.Println(err)
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return
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}
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Write(w, "application/json", 500, string(rawBody))
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}
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// NewRoundTripper creates new http RoundTripper
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func NewRoundTripper(opts ...Option) http.RoundTripper {
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options := Options{}
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for _, o := range opts {
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o(&options)
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}
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return &roundTripper{
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rt: http.DefaultTransport,
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st: random.NewSelector(),
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opts: options,
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}
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}
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// RequestToContext puts the `Authorization` header bearer token into context
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// so calls to services will be authorized.
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func RequestToContext(r *http.Request) context.Context {
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md := metadata.New(len(r.Header))
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for k, v := range r.Header {
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md.Set(k, strings.Join(v, ","))
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}
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return metadata.NewIncomingContext(r.Context(), md)
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}
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