After Finish User Register and Login Service via MVC arch

utils/utils.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"GinTutorial/config"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func HashPassword(password string) (string, error) {
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), config.AppConfig.Bcrypt.Cost)
+	return string(hash), err
+}
+
+func GenerateJWT(username string) (string, error) {
+	token := jwt.NewWithClaims(jwt.SigningMethodHS512, jwt.MapClaims{
+		"username": username,
+		"exp":      time.Now().Add(time.Hour * 72).Unix(),
+	})
+
+	signedToken, err := token.SignedString([]byte("secret"))
+	return "Bearer " + signedToken, err
+}
+
+func CheckPassword(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}