Add HTTP server without handlers

This adds the infrastructure to add HTTP handlers. It already sets up
the HTTP server and makes sure it is started and stopped.

1 files changed, 32 insertions, 0 deletions

diff --git a/main.go b/main.go
index 5665d86..6b3a0a9 100644
--- a/main.go
+++ b/main.go
@@ -1,12 +1,16 @@
 package main
 
 import (
+	"context"
 	"log"
+	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
 
 	"xengineering.eu/ceres/model"
+
+	"github.com/gorilla/mux"
 )
 
 func main() {
@@ -16,9 +20,37 @@ func main() {
 	model.InitDatabase()
 	defer model.CloseDatabase()
 
+	var srv *http.Server = startServer("127.0.0.1:8080")
+	go srv.ListenAndServe()
+	defer stopServer(srv)
+
 	listener := make(chan os.Signal)
 	signal.Notify(listener, syscall.SIGTERM)
 	signal.Notify(listener, syscall.SIGINT)
 	sig := <-listener
 	log.Printf("Cleaning up due to OS signal '%v'\n", sig)
 }
+
+func startServer(addr string) *http.Server {
+	var r *mux.Router = mux.NewRouter()
+
+	muxer := http.NewServeMux()
+	muxer.Handle("/", r)
+
+	var srv http.Server
+	srv.Addr = addr
+	srv.Handler = muxer
+
+	log.Printf("Configured server to listen on http://%s\n", srv.Addr)
+
+	return &srv
+}
+
+func stopServer(srv *http.Server) {
+	var err error = srv.Shutdown(context.Background())
+	if err != nil {
+		log.Printf("Failed to shutdown HTTP server: %v\n", err)
+	} else {
+		log.Println("Stopped HTTP server")
+	}
+}