Base Project

pkg/helper/jwt.go

@@ -0,0 +1,39 @@
+package helper
+
+import (
+	"fmt"
+	"time"
+	"wm-backend/global"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// GenerateToken tạo JWT token cho user
+func GenerateToken(userID string) (string, error) {
+	claims := jwt.MapClaims{
+		"user_id": userID,
+		"iat":     time.Now().Unix(),                                                                    // issued at
+		"exp":     time.Now().Add(time.Duration(global.Cfg.JWT.ExpirationHours) * time.Hour * 7).Unix(), // expiry
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString([]byte(global.Cfg.JWT.SecretKey)) // <-- lấy từ config
+}
+
+func ParseToken(tokenString string) (jwt.MapClaims, error) {
+	token, err := jwt.Parse(tokenString, func(token *jwt.Token) (any, error) {
+		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+			return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
+		}
+		return []byte(global.Cfg.JWT.SecretKey), nil // <-- lấy từ config
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+		return claims, nil
+	}
+
+	return nil, fmt.Errorf("invalid token")
+}

pkg/helper/password.go

@@ -0,0 +1,22 @@
+package helper
+
+import "golang.org/x/crypto/bcrypt"
+
+// HashPassword generates a salted and hashed password using bcrypt.
+// It takes the plain-text password and the number of salt rounds as input.
+// It returns the generated salt, the hashed password, and any error encountered.
+func HashPassword(password string) (string, error) {
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+
+	return string(hashedPassword), nil
+}
+
+// ComparePassword compares a plain-text password with a hashed password and returns true if they match.
+// It uses bcrypt.CompareHashAndPassword to perform the comparison.
+func ComparePassword(password string, hashedPassword string) error {
+	err := bcrypt.CompareHashAndPassword([]byte(hashedPassword), []byte(password))
+	return err
+}

pkg/helper/validator.go

@@ -0,0 +1,24 @@
+package helper
+
+import (
+	"net/http"
+	"wm-backend/response"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-playground/validator/v10"
+)
+
+func IsShouldBindJSON(c *gin.Context, obj any) bool {
+	if err := c.ShouldBindJSON(obj); err != nil {
+		response.BadRequestError(c, http.StatusBadRequest, err.Error())
+		return true
+	}
+	return false
+}
+
+var validate = validator.New()
+
+func IsEmail(input string) bool {
+	err := validate.Var(input, "email")
+	return err == nil
+}