created proxy for development

assets/src/App.tsx

@@ -5,6 +5,7 @@ function App() {
   return (
     <div>
       <h2>App</h2>
+      <p>Some other stuff</p>
     </div>
   )
 }

main.go

@@ -25,6 +25,6 @@ func main() {
 
 	models.SeedDatabase()
 
-	server.Setup()
+	server.Setup(prodMode)
 
 }

server/server.go

@@ -2,22 +2,49 @@ package server
 
 import (
 	"net/http"
+	"net/http/httputil"
+	"net/url"
 
 	"github.com/gin-contrib/static"
 	"github.com/gin-gonic/gin"
+	log "github.com/sirupsen/logrus"
 	"spahl.ddns.net/jasper/wok-able-backend/controllers"
 )
 
 var httpServer *http.Server
 var httpRouter *gin.Engine
 
-func Setup() {
+func proxy(c *gin.Context) {
+	remote, err := url.Parse("http://localhost:3000")
+	if err != nil {
+		panic(err)
+	}
+
+	proxy := httputil.NewSingleHostReverseProxy(remote)
+
+	proxy.Director = func(req *http.Request) {
+		req.Header = c.Request.Header
+		req.Host = remote.Host
+		req.URL.Scheme = remote.Scheme
+		req.URL.Host = remote.Host
+		req.URL.Path = c.Request.URL.Path
+	}
+	proxy.ServeHTTP(c.Writer, c.Request)
+}
+
+func Setup(prodMode string) {
 	httpRouter = gin.New()
 
 	httpRouter.Use(gin.Logger())
-	httpRouter.Use(static.Serve("/", static.LocalFile("./assets/build", false)))
 
 	controllers.Setup(httpRouter)
 
+	if prodMode == "release" {
+		httpRouter.Use(static.Serve("/", static.LocalFile("./assets/build", false)))
+	} else {
+		httpRouter.NoRoute(proxy)
+		log.Info("using reverse proxy")
+	}
+
 	httpRouter.Run()
 }