Init commit

server/main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"context"
+	"math/rand/v2"
+	"net/http"
+	"os"
+	"sync/atomic"
+
+	"connectrpc.com/connect"
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
+	homelabv1 "pwa-homelab-mon/gen/homelab/v1"
+	"pwa-homelab-mon/gen/homelab/v1/homelabv1connect"
+)
+
+type server struct {
+	lucky   int64
+	counter atomic.Int64
+}
+
+func (s *server) GetLuckyNumber(context.Context, *connect.Request[homelabv1.GetLuckyNumberRequest]) (*connect.Response[homelabv1.GetLuckyNumberResponse], error) {
+	return connect.NewResponse(&homelabv1.GetLuckyNumberResponse{Number: s.lucky}), nil
+}
+
+func (s *server) IncrementCounter(context.Context, *connect.Request[homelabv1.IncrementCounterRequest]) (*connect.Response[homelabv1.IncrementCounterResponse], error) {
+	return connect.NewResponse(&homelabv1.IncrementCounterResponse{Value: s.counter.Add(1)}), nil
+}
+
+func (s *server) SayHello(_ context.Context, req *connect.Request[homelabv1.SayHelloRequest]) (*connect.Response[homelabv1.SayHelloResponse], error) {
+	name := req.Msg.GetName()
+	if name == "" {
+		return nil, connect.NewError(connect.CodeInvalidArgument, os.ErrInvalid)
+	}
+	return connect.NewResponse(&homelabv1.SayHelloResponse{Greeting: "Hello, " + name + "!"}), nil
+}
+
+func main() {
+	svc := &server{lucky: rand.Int64()}
+
+	e := echo.New()
+	e.HideBanner = true
+
+	// ConnectRPC handler on the mux (matches /homelab.v1.HomelabService/<Method>).
+	mux := http.NewServeMux()
+	mux.Handle(homelabv1connect.NewHomelabServiceHandler(svc))
+	e.Any("/homelab.v1.HomelabService/*", echo.WrapHandler(mux))
+
+	// sw.js must never be cached, otherwise iOS serves a stale service worker.
+	e.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
+		return func(c echo.Context) error {
+			if c.Request().URL.Path == "/sw.js" || c.Request().URL.Path == "/manifest.webmanifest" {
+				c.Response().Header().Set("Cache-Control", "no-cache")
+			}
+			return next(c)
+		}
+	})
+
+	// Static PWA from web/dist (built by make web); HTML5 mode falls back to index.html for SPA routes.
+	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
+		Root:  "web/dist",
+		HTML5: true,
+	}))
+
+	e.Logger.Fatal(e.Start(":8080"))
+}