6 "golang.org/x/net/context"
9 // ExperimentalMiddleware is a the middleware in charge of adding the
10 // 'Docker-Experimental' header to every outgoing request
11 type ExperimentalMiddleware struct {
15 // NewExperimentalMiddleware creates a new ExperimentalMiddleware
16 func NewExperimentalMiddleware(experimentalEnabled bool) ExperimentalMiddleware {
17 if experimentalEnabled {
18 return ExperimentalMiddleware{"true"}
20 return ExperimentalMiddleware{"false"}
23 // WrapHandler returns a new handler function wrapping the previous one in the request chain.
24 func (e ExperimentalMiddleware) WrapHandler(handler func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error) func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
25 return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
26 w.Header().Set("Docker-Experimental", e.experimental)
27 return handler(ctx, w, r, vars)