sang-w0o/grpc_gateway_5.go

## grpc_gateway_5.go
type ServeMux struct {
	// handlers maps HTTP method to a list of handlers.
	handlers                  map[string][]handler
	//..
}

type handler struct {
	pat Pattern
	h   HandlerFunc
}

type HandlerFunc func(w http.ResponseWriter, r *http.Request, pathParams map[string]string)
	type ServeMux struct {
	// handlers maps HTTP method to a list of handlers.
	handlers map[string][]handler
	//..
	}

	type handler struct {
	pat Pattern
	h HandlerFunc
	}

	type HandlerFunc func(w http.ResponseWriter, r *http.Request, pathParams map[string]string)