README.md

@@ -0,0 +1,3 @@
+# GoAsWebServer
+
+Repository d'entrainement au développement de solutions web en Go. Chaque branche est axée sur un sujet différent et ou un test quelconque.

api/server.go

@@ -0,0 +1,89 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/google/uuid"
+	"github.com/gorilla/mux"
+)
+
+// Item data structure SUB
+type Item struct {
+	ID   uuid.UUID `json:"id"`
+	Name string    `json:"name"`
+}
+
+// Server data structure MAIN
+type Server struct {
+	*mux.Router   // Merge mux router comportement with Server
+	ShoppingItems []Item
+}
+
+// Server Constructor
+func NewServer() *Server {
+	server := &Server{
+		Router:        mux.NewRouter(),
+		ShoppingItems: []Item{},
+	}
+	server.InitRoutes()
+	return server
+}
+
+// Init mux router
+func (server *Server) InitRoutes() {
+	server.HandleFunc("/shopping-items", server.ListShoppingItems()).Methods("GET")
+	server.HandleFunc("/shopping-items", server.CreateShoppingItem()).Methods("POST")
+	server.HandleFunc("/shopping-items/{id}", server.RemoveShoppingItem()).Methods("DELETE")
+}
+
+// Handler create item
+func (server *Server) CreateShoppingItem() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var item Item
+		if err := json.NewDecoder(r.Body).Decode(&item); err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		item.ID = uuid.New()
+		server.ShoppingItems = append(server.ShoppingItems, item)
+
+		w.Header().Set("Content-Type", "application/json")
+		if err := json.NewEncoder(w).Encode(item); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+// Handler retrieve items
+func (server *Server) ListShoppingItems() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		if err := json.NewEncoder(w).Encode(server.ShoppingItems); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+// Hndler remove item
+func (server *Server) RemoveShoppingItem() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		rawID := mux.Vars(r)["id"]
+
+		itemID, err := uuid.Parse(rawID)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		for i, item := range server.ShoppingItems {
+			if item.ID == itemID {
+				server.ShoppingItems = append(server.ShoppingItems[:i], server.ShoppingItems[i+1:]...)
+				break
+			}
+		}
+	}
+}

cmd/server/main.go

@@ -1 +0,0 @@
-package server

go.mod

@@ -3,6 +3,6 @@ module endmove/webserverlearning
 go 1.18
 
 require (
+	github.com/google/uuid v1.3.0
 	github.com/gorilla/mux v1.8.0
-	github.com/russross/blackfriday/v2 v2.1.0
 )

go.sum

@@ -1,4 +1,4 @@
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
-github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
-github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=

html/template.go

@@ -1,20 +0,0 @@
-package html
-
-import (
-	"html/template"
-	"strings"
-
-	"github.com/russross/blackfriday/v2"
-)
-
-func Parse(templates ...string) *template.Template {
-	return template.Must(template.New("ALL").Funcs(FuncMap()).ParseFiles(templates...))
-}
-
-func FuncMap() template.FuncMap {
-	return template.FuncMap{
-		"lowercase": strings.ToLower,
-		"uppercase": strings.ToUpper,
-		"markdown": blackfriday.Run,
-	}
-}

main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"context"
+	"endmove/webserverlearning/api"
+	"flag"
+	"fmt"
+	"net/http"
+	"os"
+	"os/signal"
+	"time"
+)
+
+func main() {
+	// define graceful time for webserver shutdown - not required
+	var wait time.Duration
+
+	flag.DurationVar(&wait, "graceful-timeout", time.Second*30, "The time needed to close the connections")
+	flag.Parse() // apply flags <!> one shot function
+
+	// Config webserver
+	webserver := http.Server{
+		Addr: ":8080",
+		// Timeout (stop overloading and attack)
+		WriteTimeout: time.Second * 15,
+		ReadTimeout:  time.Second * 15,
+		IdleTimeout:  time.Second * 60,
+		// Mux instance
+		Handler: api.NewServer(),
+	}
+
+	// Start webserver in routine
+	go func() {
+		if err := webserver.ListenAndServe(); err != nil {
+			fmt.Println(err.Error())
+		}
+	}()
+	fmt.Println("Server started on : http://localhost:8080")
+
+	// setuping sig to catch ctrl+c and throw a graceful stop
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, os.Interrupt)
+
+	// waiting sig
+	<-sig
+
+	// defining graceful timeout
+	ctx, cancel := context.WithTimeout(context.Background(), wait)
+	defer cancel()
+
+	// shut down webserver with countdown
+	webserver.Shutdown(ctx)
+
+	fmt.Println("program has stopped")
+	os.Exit(0)
+}
+
+// func main() {
+//     http.HandleFunc("/hello-world", func(w http.ResponseWriter, r *http.Request) {
+//         w.Write([]byte("<h1>Hello World !</h1>"))
+//     })
+//     go http.ListenAndServe(":8080", nil)
+//     fmt.Println("Server listening on port :8080 at http://localhost:8080")
+//     time.Sleep(1 * time.Minute)
+//     fmt.Println("Quit...")
+// }

shopping.rest

@@ -0,0 +1,13 @@
+### List shopping items
+GET http://localhost:8080/shopping-items
+
+### Create new shopping item
+POST http://localhost:8080/shopping-items
+Content-Type: application/json
+
+{
+    "name": "MDR"
+}
+
+### Remove shopping item
+DELETE http://localhost:8080/shopping-items/uuid

store/store.go

@@ -1 +0,0 @@
-package store

web/middleware.go

@@ -1,17 +0,0 @@
-package web
-
-import "net/http"
-
-func WithAuth(f http.HandlerFunc) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		// TODO check request auth
-		f(w, r)
-	}
-}
-
-func WithCompression(f http.HandlerFunc) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		// TODO wrap writter in compressor
-		f(w, r)
-	}
-}

web/server.go

@@ -1,33 +0,0 @@
-package web
-
-import (
-	"net/http"
-
-	"github.com/gorilla/mux"
-)
-
-func NewServer() *Server {
-	server := &Server{
-		Router: mux.NewRouter(),
-	}
-	server.HandleFunc("/todos", server.todos).Methods("GET")
-	server.HandleFunc("/todos", WithAuth(server.todoCreate)).Methods("POST")
-	server.HandleFunc("/todos", WithAuth(server.todoDelete)).Methods("DELETE")
-	return server
-}
-
-type Server struct {
-	*mux.Router
-}
-
-func (server *Server) todos(w http.ResponseWriter, r *http.Request) {
-	// TODO get
-}
-
-func (server *Server) todoCreate(w http.ResponseWriter, r *http.Request) {
-	// TODO get
-}
-
-func (server *Server) todoDelete(w http.ResponseWriter, r *http.Request) {
-	// TODO get
-}