コード例 #1
0
// New instantiates a new ehttprouter.Router.
func New(sendErrorCallback func(ehttp.ResponseWriter, *http.Request, error), errorContentType string, recoverPanic bool, logger *log.Logger) *Router {
	return &Router{
		Router:       httprouter.New(),
		mux:          ehttp.NewServeMux(sendErrorCallback, errorContentType, recoverPanic, logger),
		recoverPanic: recoverPanic,
	}
}
コード例 #2
0
func ExampleServeMux_customized() {
	// Define our error format and how to expose it to the client.
	type customError struct {
		Error    string `json:"error"`
		HTTPCode int    `json:"http_code"`
	}
	errorHandler := func(w ehttp.ResponseWriter, req *http.Request, err error) {
		_ = json.NewEncoder(w).Encode(customError{
			Error:    err.Error(),
			HTTPCode: w.Code(),
		})
	}

	// Define a cutom logger for unexpected events (double header send).
	logger := log.New(os.Stderr, "", log.LstdFlags)

	// Create the mux.
	mux := ehttp.NewServeMux(errorHandler, "application/text; charset=utf-8", false, logger)

	// Register the handler.
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) error {
		// Return an error.
		return ehttp.NewErrorf(http.StatusTeapot, "fail")
	})

	// Start serve the mux.
	log.Fatal(http.ListenAndServe(":8080", mux))
}
コード例 #3
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func ExampleServeMux_panic() {
	mux := ehttp.NewServeMux(nil, "application/text; charset=utf-8", true, nil)
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) error {
		panic(ehttp.InternalServerError)
	})
	log.Fatal(http.ListenAndServe(":8080", mux))
}
コード例 #4
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func ExampleServeMux_customLogger() {
	// When returning an error after sending the errors, we can't set the http Status.
	// As data as already been sent, we don't want to corrupt it so we log the error server side.
	logger := log.New(os.Stderr, "", log.LstdFlags)
	mux := ehttp.NewServeMux(nil, "application/text; charset=utf-8", true, logger)
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) error {
		panic(ehttp.InternalServerError)
	})
	log.Fatal(http.ListenAndServe(":8080", mux))
}
コード例 #5
0
func Example_customErrorHandler() {
	// Define how to send errors to the user.
	errorHandler := func(w ehttp.ResponseWriter, req *http.Request, err error) {
		fmt.Fprintf(w, "<<<<<<%s>>>>>>", err)
	}
	mux := ehttp.NewServeMux(errorHandler, "application/text; charset=utf-8", false, nil)
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) error {
		return ehttp.NewErrorf(http.StatusTeapot, "fail")
	})
	log.Fatal(http.ListenAndServe(":8080", mux))
}