add: Login system

internal/middlewares/auth.go

@@ -17,7 +17,7 @@ var (
 	jwtParser        = jwt.NewParser(jwt.WithValidMethods([]string{jwtSigningMethod.Alg()}))
 )
 
-func GenerateToken(userID string) (string, error) {
+func GenerateToken(userID int64) (string, error) {
 	token := jwt.NewWithClaims(jwtSigningMethod, jwt.MapClaims{
 		"user_id": userID,
 		"exp":     time.Now().Add(time.Minute * 15).Unix(), // Token expires in 15 Minutes

internal/middlewares/auth_test.go

@@ -19,7 +19,7 @@ func TestAuthMiddleware(t *testing.T) {
 		name           string
 		setupAuth      func(r *http.Request)
 		expectedStatus int
-		expectedUserID string
+		expectedUserID int64
 	}{
 		{
 			name: "Valid Token",
@@ -28,13 +28,13 @@ func TestAuthMiddleware(t *testing.T) {
 				r.Header.Set("Authorization", "Bearer "+token)
 			},
 			expectedStatus: http.StatusOK,
-			expectedUserID: "user123",
+			expectedUserID: 12,
 		},
 		{
 			name:           "Missing Auth Header",
 			setupAuth:      func(r *http.Request) {},
 			expectedStatus: http.StatusUnauthorized,
-			expectedUserID: "",
+			expectedUserID: 0,
 		},
 		{
 			name: "Invalid Token Format",
@@ -42,7 +42,7 @@ func TestAuthMiddleware(t *testing.T) {
 				r.Header.Set("Authorization", "InvalidFormat")
 			},
 			expectedStatus: http.StatusUnauthorized,
-			expectedUserID: "",
+			expectedUserID: 0,
 		},
 		{
 			name: "Expired Token",
@@ -55,7 +55,7 @@ func TestAuthMiddleware(t *testing.T) {
 				r.Header.Set("Authorization", "Bearer "+tokenString)
 			},
 			expectedStatus: http.StatusUnauthorized,
-			expectedUserID: "",
+			expectedUserID: 0,
 		},
 		{
 			name: "Invalid Signature",
@@ -68,13 +68,13 @@ func TestAuthMiddleware(t *testing.T) {
 				r.Header.Set("Authorization", "Bearer "+tokenString)
 			},
 			expectedStatus: http.StatusUnauthorized,
-			expectedUserID: "",
+			expectedUserID: 0,
 		},
 		{
 			name:           "Missing Auth Header",
 			setupAuth:      func(r *http.Request) {},
 			expectedStatus: http.StatusUnauthorized,
-			expectedUserID: "",
+			expectedUserID: 0,
 		},
 	}
 
@@ -88,7 +88,7 @@ func TestAuthMiddleware(t *testing.T) {
 				if exists {
 					c.JSON(http.StatusOK, gin.H{"user_id": userID})
 				} else {
-					c.JSON(http.StatusUnauthorized, gin.H{"user_id": ""})
+					c.JSON(http.StatusUnauthorized, gin.H{"user_id": 0})
 				}
 			})