42 lines
1.0 KiB
Go
42 lines
1.0 KiB
Go
package registry
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import (
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"encoding/json"
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"io"
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"net/http"
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"github.com/gorilla/mux"
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)
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// serveJSON marshals v and sets the content-type header to
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// 'application/json'. If a different status code is required, call
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// ResponseWriter.WriteHeader before this function.
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func serveJSON(w http.ResponseWriter, v interface{}) error {
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w.Header().Set("Content-Type", "application/json")
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enc := json.NewEncoder(w)
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if err := enc.Encode(v); err != nil {
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return err
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}
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return nil
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}
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// closeResources closes all the provided resources after running the target
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// handler.
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func closeResources(handler http.Handler, closers ...io.Closer) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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for _, closer := range closers {
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defer closer.Close()
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}
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handler.ServeHTTP(w, r)
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})
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}
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// clondedRoute returns a clone of the named route from the router.
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func clonedRoute(router *mux.Router, name string) *mux.Route {
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route := new(mux.Route)
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*route = *router.GetRoute(name) // clone the route
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return route
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}
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