First commit

app/web/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"io"
+	"log"
+	"net/http"
+	"os"
+
+	"github.com/joho/godotenv"
+)
+
+func main() {
+	_ = godotenv.Load(".env") // Load .env file
+
+	valhallaURL := os.Getenv("VALHALLA_URL")
+	if valhallaURL == "" {
+		valhallaURL = "http://10.200.0.15:8002/route"
+	}
+
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("./static"))))
+	http.HandleFunc("/route", func(w http.ResponseWriter, r *http.Request) {
+		proxyToValhalla(w, r, valhallaURL)
+	})
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/" {
+			http.ServeFile(w, r, "./static/index.html")
+			return
+		}
+		http.ServeFile(w, r, "./static/"+r.URL.Path[1:])
+	})
+	log.Printf("Listening on :%s", port)
+	http.ListenAndServe(":"+port, nil)
+}
+
+func proxyToValhalla(w http.ResponseWriter, r *http.Request, valhallaURL string) {
+	req, _ := http.NewRequest("POST", valhallaURL, r.Body)
+	req.Header = r.Header
+
+	client := http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadGateway)
+		return
+	}
+	defer resp.Body.Close()
+	w.Header().Set("Content-Type", resp.Header.Get("Content-Type"))
+	io.Copy(w, resp.Body)
+}