fix: now you cannot send invitation to yourself

services/api/controllers/friend/friend_invite.go

@@ -15,8 +15,8 @@ import (
 func (s Service) InviteFriend(ctx context.Context, req *monify.InviteFriendRequest) (*monify.InviteFriendResponse, error) {
 
 	logger := ctx.Value(lib.LoggerContextKey{}).(*zap.Logger)
-	userId := ctx.Value(lib.UserIdContextKey{})
-	if userId == nil {
+	userId := ctx.Value(lib.UserIdContextKey{}).(uuid.UUID)
+	if userId == uuid.Nil {
 		return nil, status.Error(codes.Unauthenticated, "Unauthorized.")
 	}
 	receiver_nickId := req.GetReceiverNickId()
@@ -35,6 +35,10 @@ func (s Service) InviteFriend(ctx context.Context, req *monify.InviteFriendReque
 		return nil, status.Error(codes.Internal, "")
 	}
 
+	if receiverId == userId.String() {
+		return nil, status.Error(codes.InvalidArgument, "Cannot send invitation to yourself.")
+	}
+
 	inviteId := uuid.New()
 	_, err = db.ExecContext(ctx,
 		`INSERT INTO friend_invite (invite_id, sender, receiver) VALUES ($1, $2, $3)`,

services/api/test/friend_invite_test.go

@@ -15,11 +15,15 @@ func TestInviteFriend(t *testing.T) {
 	_, err := client.UpdateUserNickId(context.Background(), &monify.UpdateUserNickIdRequest{NickId: "test_nickId1"})
 	assert.NoError(t, err)
 	_, err = client.InviteFriend(context.TODO(), &monify.InviteFriendRequest{ReceiverNickId: "test_nickId1"})
+	assert.Error(t, err)
+	_ = client.CreateTestUser()
+	_, err = client.InviteFriend(context.TODO(), &monify.InviteFriendRequest{ReceiverNickId: "test_nickId1"})
 	assert.NoError(t, err)
-
-	// test list invitation
 	_ = client.CreateTestUser()
 	_, err = client.InviteFriend(context.TODO(), &monify.InviteFriendRequest{ReceiverNickId: "test_nickId1"})
+	assert.NoError(t, err)
+
+	// test list invitation
 	client.SetTestUser(user1)
 	invitaions, err := client.ListFriendInvitation(context.TODO(), &monify.FriendEmpty{})
 	assert.NoError(t, err)