Add initial project structure with database connection and routing setup

- Create .env.example and .gitignore to manage environment variables
- Implement database connection logic in bd.go
- Define project model and data retrieval functions in projet.go
- Set up HTTP routes for project management in routes/projet.go
- Add main entry point in main.go to start the server

.gitignore

@@ -0,0 +1 @@
+.env

bd/bd.go

@@ -0,0 +1,38 @@
+package bd
+
+import (
+	"database/sql"
+	"log"
+	"os"
+
+	"github.com/go-sql-driver/mysql"
+	"github.com/joho/godotenv"
+)
+
+var db *sql.DB
+
+func GetDB() *sql.DB {
+
+	if db == nil {
+		errenv := godotenv.Load()
+		if errenv != nil {
+			log.Fatal("Error loading .env file")
+		}
+		// Capture connection properties.
+		cfg := mysql.NewConfig()
+		cfg.User = os.Getenv("DB_USER")
+		cfg.Passwd = os.Getenv("DB_PASS")
+		cfg.Net = "tcp"
+		cfg.Addr = os.Getenv("DB_HOST")
+		cfg.DBName = os.Getenv("DB_NAME")
+
+		// Get a database handle.
+		var err error
+		db, err = sql.Open("mysql", cfg.FormatDSN())
+		if err != nil {
+			log.Fatal(err)
+		}
+
+	}
+	return db
+}

go.mod

@@ -0,0 +1,10 @@
+module api_serveurless_go
+
+go 1.25.1
+
+require (
+	github.com/go-sql-driver/mysql v1.9.3
+	github.com/joho/godotenv v1.5.1
+)
+
+require filippo.io/edwards25519 v1.1.0 // indirect

go.sum

@@ -0,0 +1,6 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/go-sql-driver/mysql v1.9.3 h1:U/N249h2WzJ3Ukj8SowVFjdtZKfu9vlLZxjPXV1aweo=
+github.com/go-sql-driver/mysql v1.9.3/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

main.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"api_serveurless_go/routes"
+	"net/http"
+)
+
+func main() {
+	// Configuration des routes
+	routes.SetupRoutes()
+
+	// Démarrage du serveur
+	http.ListenAndServe(":3000", nil)
+}

requette/projet.go

@@ -0,0 +1,62 @@
+package requette
+
+import (
+	"api_serveurless_go/bd"
+	"database/sql"
+	"log"
+)
+
+type Projet struct {
+	Id               int    `json:"id"`
+	Name             string `json:"name"`
+	ShortDescription string `json:"shortdescription"`
+}
+
+func GetAllProjets() []Projet {
+	db := bd.GetDB()
+	stmt, err := db.Prepare("SELECT * FROM projet")
+	if err != nil {
+		log.Fatal(err)
+	}
+	row, err := stmt.Query()
+	defer stmt.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return hydrateProjets(row)
+
+}
+
+func GetProjetByID(id int) Projet {
+	db := bd.GetDB()
+	stmt, err := db.Prepare("SELECT * FROM projet WHERE id = ?")
+	if err != nil {
+		log.Fatal(err)
+	}
+	row := stmt.QueryRow(id)
+	defer stmt.Close()
+	return hydrateProjet(row)
+}
+
+func hydrateProjet(row *sql.Row) Projet {
+	var projet Projet
+	err := row.Scan(&projet.Id, &projet.Name, &projet.ShortDescription)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return projet
+}
+
+func hydrateProjets(rows *sql.Rows) []Projet {
+	var projets []Projet
+	for rows.Next() {
+		var projet Projet
+		err := rows.Scan(&projet.Id, &projet.Name, &projet.ShortDescription)
+		if err != nil {
+			log.Fatal(err)
+		}
+		projets = append(projets, projet)
+	}
+	return projets
+}

routes/projet.go

@@ -0,0 +1,62 @@
+package routes
+
+import (
+	"api_serveurless_go/requette"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+// SetupRoutes configure toutes les routes de l'application
+func SetupRoutes() {
+	http.HandleFunc("/", homeHandler)
+	http.HandleFunc("/api/projets", projetsHandler)
+	http.HandleFunc("/api/projet/", projetHandler)
+}
+
+// homeHandler gère la route racine
+func homeHandler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "Welcome to my website!")
+}
+
+// projetsHandler gère la liste des projets
+func projetsHandler(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case "GET":
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode(requette.GetAllProjets())
+	case "POST":
+		fmt.Fprintf(w, "Créer un nouveau projet")
+	default:
+		http.Error(w, "Méthode non autorisée", http.StatusMethodNotAllowed)
+	}
+}
+
+// projetHandler gère les actions sur un projet spécifique
+func projetHandler(w http.ResponseWriter, r *http.Request) {
+	id := strings.TrimPrefix(r.URL.Path, "/api/projet/")
+	if id == "" {
+		http.Error(w, "ID manquant", http.StatusBadRequest)
+		return
+	}
+	idInt, err := strconv.Atoi(id)
+	if err != nil {
+		http.Error(w, "ID invalide", http.StatusBadRequest)
+		return
+	}
+	switch r.Method {
+	case "GET":
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode(requette.GetProjetByID(idInt))
+	case "PUT":
+		fmt.Fprintf(w, "Modifier le projet %d", idInt)
+	case "DELETE":
+		fmt.Fprintf(w, "Supprimer le projet %d", idInt)
+	default:
+		http.Error(w, "Méthode non autorisée", http.StatusMethodNotAllowed)
+	}
+}