X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/39c17737ac69d7693684fe2f95bef0ec235a28bf..2d9aa62499005abd47b5f2fa604f01d055480722:/sdk/go/auth/auth.go

diff --git a/sdk/go/auth/auth.go b/sdk/go/auth/auth.go
index ad1d398c76..c2f6a0e8f0 100644
--- a/sdk/go/auth/auth.go
+++ b/sdk/go/auth/auth.go
@@ -5,6 +5,7 @@
 package auth
 
 import (
+	"context"
 	"encoding/base64"
 	"net/http"
 	"net/url"
@@ -19,7 +20,20 @@ func NewCredentials() *Credentials {
 	return &Credentials{Tokens: []string{}}
 }
 
-func NewCredentialsFromHTTPRequest(r *http.Request) *Credentials {
+func NewContext(ctx context.Context, c *Credentials) context.Context {
+	return context.WithValue(ctx, contextKeyCredentials{}, c)
+}
+
+func FromContext(ctx context.Context) (*Credentials, bool) {
+	c, ok := ctx.Value(contextKeyCredentials{}).(*Credentials)
+	return c, ok
+}
+
+func CredentialsFromRequest(r *http.Request) *Credentials {
+	if c, ok := FromContext(r.Context()); ok {
+		// preloaded by middleware
+		return c
+	}
 	c := NewCredentials()
 	c.LoadTokensFromHTTPRequest(r)
 	return c