Add some conifguration and logging for the hub

cmd/hub/middlewares.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func postjson(f http.HandlerFunc) http.HandlerFunc {
+	return contentJSON(methodPost(f))
+}
+
+func methodPost(f http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, req *http.Request) {
+		if req.Method != http.MethodPost {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			fmt.Fprintf(w, `{"errors": ["method not allowed"]}`)
+			return
+		}
+
+		f(w, req)
+	}
+
+}
+
+func contentJSON(f http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, req *http.Request) {
+		headers := w.Header()
+		headers.Set("content-type", "application/json")
+
+		f(w, req)
+	}
+}
+
+type noopHandler struct {
+	http.HandlerFunc
+}
+
+func wrapHandleFunc(h http.HandlerFunc) noopHandler {
+	return noopHandler{
+		HandlerFunc: h,
+	}
+}
+
+func (h noopHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	h.HandlerFunc(w, req)
+}