Add a simple go server to serve the frontends

.gitignore

@@ -0,0 +1 @@
+tmp

Makefile

@@ -0,0 +1,17 @@
+all: build
+
+nil: 
+
+reactNextJS/out/*: reactNextJS/app/* reactNextJS/*.js reactNextJS/*.json
+	cd reactNextJS && npm run build
+nextjs: reactNextJS/out/*
+serverdeps: nextjs *.go reactNextJS/addToServer.go
+
+build: serverdeps
+	go build server.go
+run: serverdeps
+	go run server.go
+air: nextjs nil
+	air server.go
+
+.PHONY: all build nextjs serverdeps run air nil

go.mod

@@ -0,0 +1,3 @@
+module frontends
+
+go 1.22.3

reactNextJS/addToServer.go

@@ -0,0 +1,28 @@
+package reactNextJS
+
+import (
+	"embed"
+	"fmt"
+	"io/fs"
+	"net/http"
+)
+
+//go:embed "out/*"
+var nextFiles embed.FS
+
+//go:embed "out/_next"
+var nextScripts embed.FS
+
+// Call this from main once before starting the server
+func AddNextStaticClient() {
+	scriptsSubFolder, err := fs.Sub(nextScripts, "out")
+	if err != nil {
+		panic(fmt.Sprint("Error: Could not find \"reactNextJS/out/\". Did you build the reactNextJS client?"))
+	}
+	filesSubFolder, _ := fs.Sub(nextFiles, "out")
+	var nextScriptsServer = http.FileServerFS(scriptsSubFolder)
+	var nextFilesServer = http.FileServerFS(filesSubFolder)
+
+	http.Handle("/reactNextJS/", http.StripPrefix("/reactNextJS/", nextFilesServer))
+	http.Handle("/_next/", nextScriptsServer)
+}

server.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"embed"
+	"fmt"
+	"frontends/reactNextJS"
+	"net/http"
+)
+
+const PORT = 3003
+
+//go:embed "vanillaJS"
+var vanillaJS embed.FS
+
+//go:embed "react"
+var react embed.FS
+
+//go:embed "reactNextJS/out"
+var nextStatic embed.FS
+
+func main() {
+
+	http.Handle("/vanillaJS/", http.FileServerFS(vanillaJS))
+	http.Handle("/react/", http.FileServerFS(react))
+	reactNextJS.AddNextStaticClient()
+
+	err := http.ListenAndServe(fmt.Sprintf(":%d", PORT), nil)
+	if err != nil {
+		panic(fmt.Sprintf("Error starting server: %s", err))
+	}
+}