start building frontend

cmd/serve/api.go

@@ -22,27 +22,14 @@ type AdminRouter struct {
 	ts     *tailscale.LocalClient
 }
 
-type handler struct {
-	get    func()
-	post   func()
-	put    func()
-	delete func()
-}
+type handler map[string]func()
 
 func (h handler) Handle(w http.ResponseWriter, req *http.Request) {
-	if req.Method == http.MethodHead && h.get != nil {
-		h.get()
-	} else if req.Method == http.MethodGet && h.get != nil {
-		h.get()
-	} else if req.Method == http.MethodPost && h.post != nil {
-		h.post()
-	} else if req.Method == http.MethodPut && h.put != nil {
-		h.put()
-	} else if req.Method == http.MethodDelete && h.delete != nil {
-		h.delete()
-	} else {
-		badMethod(w)
+	if f, ok := h[req.Method]; ok {
+		f()
+		return
 	}
+	badMethod(w)
 }
 
 func writeJSONerror(w http.ResponseWriter, err string, status int) {
@@ -65,11 +52,11 @@ func (router *Router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	switch r.URL.Path {
 	case "/api/records":
 		handler{
-			get: func() { getRecords(router.rcol, w, r) },
+			http.MethodGet: func() { getRecords(router.rcol, w, r) },
 		}.Handle(w, r)
 	case "/api/books":
 		handler{
-			get: func() { getBooks(router.lib, w, r) },
+			http.MethodGet: func() { getBooks(router.lib, w, r) },
 		}.Handle(w, r)
 	default:
 		static(router.static).ServeHTTP(w, r)
@@ -80,13 +67,13 @@ func (router *AdminRouter) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	switch r.URL.Path {
 	case "/api/whoami":
 		handler{
-			get: func() { getWhoAmI(router.ts, w, r) },
+			http.MethodGet: func() { getWhoAmI(router.ts, w, r) },
 		}.Handle(w, r)
 	case "/api/books":
 		handler{
-			get:    func() { getBooks(router.lib, w, r) },
-			post:   func() { addBook(router.lib, w, r) },
-			delete: func() { deleteBook(router.lib, w, r) },
+			http.MethodGet:    func() { getBooks(router.lib, w, r) },
+			http.MethodPost:   func() { addBook(router.lib, w, r) },
+			http.MethodDelete: func() { deleteBook(router.lib, w, r) },
 		}.Handle(w, r)
 	default:
 		static(router.static).ServeHTTP(w, r)