feat: add user register

pkg/jwt/jwt.go

@@ -18,7 +18,12 @@ type CustomClaims struct {
 	jwt.StandardClaims
 }
 
-func CreateToken(user User) (string, error) {
+type TokenResult struct {
+	Token     string `json:"token"`
+	ExpiresAt int64  `json:"expires_at"`
+}
+
+func CreateToken(user User) (*TokenResult, error) {
 	expire := time.Now().Add(time.Duration(ValidTime) * time.Second)
 	claims := &CustomClaims{
 		User: user,
@@ -32,10 +37,13 @@ func CreateToken(user User) (string, error) {
 
 	t, err := token.SignedString(JwtKey)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
-	return "Bearer " + t, nil
+	return &TokenResult{
+		Token:     "Bearer " + t,
+		ExpiresAt: expire.Unix(),
+	}, nil
 }
 
 func ParseToken(signToken string) (*CustomClaims, error) {