Added Gorilla/mux library

articles.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
 )
 
@@ -22,6 +23,7 @@ func getAllArticles() http.Handler {
 		}
 
 		json.NewEncoder(w).Encode(articles)
+		log.Println("Served /articles")
 	}
 
 	return http.HandlerFunc(fn)

go.mod

@@ -0,0 +1,5 @@
+module go-rest-api
+
+go 1.13
+
+require github.com/gorilla/mux v1.8.0

go.sum

@@ -0,0 +1,2 @@
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=

main.go

@@ -1,14 +1,32 @@
 package main
 
 import (
+	"context"
 	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"time"
 )
 
 func main() {
 	fmt.Println("Hello world!")
 
 	s := Server{
-		port: ":3000",
+		port: ":9999",
 	}
+
+	go func() {
 		s.serve()
+	}()
+
+	signCh := make(chan os.Signal)
+	signal.Notify(signCh, os.Interrupt)
+	signal.Notify(signCh, os.Kill)
+
+	sig := <-signCh
+	log.Println("Received terminal, graceful shutdown", sig)
+
+	tc, _ := context.WithTimeout(context.Background(), 30*time.Second)
+	s.shutdown(tc)
 }

server.go

@@ -1,22 +1,39 @@
 package main
 
 import (
+	"context"
 	"log"
 	"net/http"
+	"time"
+
+	"github.com/gorilla/mux"
 )
 
 // Server base struct
 type Server struct {
 	port   string
+	server http.Server
 }
 
 func (s *Server) serve() {
-	mux := http.NewServeMux()
-	mux.Handle("/", s.handle())
-	mux.Handle("/articles", getAllArticles())
+	sm := mux.NewRouter()
+	sm.Handle("/", s.handle())
+	sm.Handle("/articles", getAllArticles())
 
+	serv := &http.Server{
+		Addr:         s.port,
+		Handler:      sm,
+		IdleTimeout:  120 * time.Second,
+		ReadTimeout:  1 * time.Second,
+		WriteTimeout: 1 * time.Second,
+	}
+	s.server = *serv
 	log.Print("Listening on", s.port)
-	log.Fatal(http.ListenAndServe(s.port, mux))
+
+	err := serv.ListenAndServe()
+	if err != nil {
+		log.Fatal(err)
+	}
 }
 
 func (s *Server) handle() http.Handler {
@@ -26,3 +43,7 @@ func (s *Server) handle() http.Handler {
 
 	return http.HandlerFunc(fn)
 }
+
+func (s *Server) shutdown(tc context.Context) {
+	s.server.Shutdown(tc)
+}