handle db

go.mod

@@ -3,6 +3,8 @@ module do-it
 go 1.22
 
 require (
+	filippo.io/edwards25519 v1.1.0 // indirect
 	github.com/go-chi/chi/v5 v5.0.12 // indirect
+	github.com/go-sql-driver/mysql v1.8.1 // indirect
 	github.com/joho/godotenv v1.5.1 // indirect
 )

go.sum

@@ -1,4 +1,8 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 github.com/go-chi/chi/v5 v5.0.12 h1:9euLV5sTrTNTRUU9POmDUvfxyj6LAABLUcEWO+JJb4s=
 github.com/go-chi/chi/v5 v5.0.12/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
+github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

internal/handlers/handler.go

@@ -3,10 +3,10 @@ package handlers
 import "database/sql"
 
 type DBHandler struct {
-	db *sql.DB
+	*sql.DB
 }
 
 // NewDBHandler => create a new instance from DBHandler and return it
 func NewDBHandler(db *sql.DB) *DBHandler {
-	return &DBHandler{db: db}
+	return &DBHandler{db}
 }

internal/handlers/user_handler.go

@@ -0,0 +1,31 @@
+package handlers
+
+import (
+	"do-it/internal/models"
+	"do-it/internal/utils"
+	"log"
+	"net/http"
+)
+
+// GetLatestUsers => get the latest users and return json response
+func (db *DBHandler) GetLatestUsers(w http.ResponseWriter, r *http.Request) {
+	var users []models.User
+
+	sql := "SELECT id, name, email, phone, created_at FROM USERS ORDER BY created_at DESC"
+	rows, err := db.Query(sql)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for rows.Next() {
+		var user models.User
+		err := rows.Scan(&user.ID, &user.Name, &user.Email, &user.Phone, &user.CreatedAt)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		users = append(users, user)
+	}
+
+	utils.JsonResponse(w, users)
+}

internal/routers/router.go

@@ -3,14 +3,13 @@ package routers
 import (
 	"do-it/internal/handlers"
 	"github.com/go-chi/chi/v5"
-	"net/http"
 )
 
 func GetRouter(handler *handlers.DBHandler) *chi.Mux {
 	router := chi.NewRouter()
-	router.Get("/", func(w http.ResponseWriter, r *http.Request) {
-		w.Write([]byte("milwad"))
-	})
+
+	// Users
+	router.Get("/users", handler.GetLatestUsers)
 
 	return router
 }

internal/utils/json.go

@@ -0,0 +1,12 @@
+package utils
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// JsonResponse => set json header and return json response
+func JsonResponse(w http.ResponseWriter, data any) {
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(data)
+}

main.go

@@ -5,6 +5,7 @@ import (
 	"do-it/internal/handlers"
 	"do-it/internal/routers"
 	"fmt"
+	_ "github.com/go-sql-driver/mysql"
 	"github.com/joho/godotenv"
 	"log"
 	"net/http"