Grpc hello service implementation

cmd/music-agregator/main.go

@@ -2,15 +2,19 @@ package main
 
 import (
 	"flag"
+	"net"
 	"os"
 
 	"github.com/gin-gonic/gin"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
+	"google.golang.org/grpc"
 	"gopkg.in/yaml.v2"
+	pb "homelab.lan/music-agregator/gen/music_agregator/hello/v1"
 
 	// My modules
 	"homelab.lan/music-agregator/internal/config"
+	"homelab.lan/music-agregator/internal/hello"
 	appRouter "homelab.lan/music-agregator/internal/router"
 )
 
@@ -27,6 +31,14 @@ func main() {
 	}
 	log.Info().Interface("config", cfg).Msg("Loaded config")
 
+	// start the grpc in another thread to not block the next http start
+	go serveGrpc()
+
+	serveHttp()
+
+}
+
+func serveHttp() {
 	router := gin.Default()
 	appRouter.SetupRoutes(router)
 	router.GET("/ping", func(c *gin.Context) {
@@ -35,7 +47,18 @@ func main() {
 		})
 	})
 	router.Run()
+}
 
+func serveGrpc() {
+	var opts []grpc.ServerOption
+	server := grpc.NewServer(opts...)
+	helloServiceHandler := hello.NewHelloServer()
+	pb.RegisterHelloServiceServer(server, helloServiceHandler)
+	listener, err := net.Listen("tcp", "localhost:8081")
+	if err != nil {
+		log.Fatal().Err(err).Msg("Failed to listen on localhost:8081")
+	}
+	server.Serve(listener)
 }
 
 func parseConfig(path *string) (config.Config, error) {