Initial HTTPHandler (with panics)

http_request_renderable.go

@@ -19,3 +19,26 @@ type RequestRenderableFunc func(*http.Request) (AsRenderable, error)
 func (f RequestRenderableFunc) RequestRenderable(r *http.Request) (AsRenderable, error) {
 	return f(r)
 }
+
+// HTTPHandler implements http.Handler for a RequestRenderable.
+type HTTPHandler struct {
+	Renderable RequestRenderable
+}
+
+// ServeHTTP implements http.Handler.
+func (h HTTPHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	renderable, err := h.Renderable.RequestRenderable(r)
+	if err != nil {
+		panic(err)
+	}
+
+	html, err := Render(r.Context(), renderable)
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = w.Write([]byte(html))
+	if err != nil {
+		panic(err)
+	}
+}