public function index_post()
    {

        $foto        = $_FILES['gambar']['name'];
        $email       = $this->post('email');
        $password    = $this->post('password');

        if ($foto == '') {
            $foto = 'blank_profile.png';
        } else {
            $config['upload_path']   = './assets/images/'; // lokasi penyimpanan gambar
            $config['allowed_types'] = 'jpg|png|jpeg'; // format gambar yang bisa di upload

            $this->load->library('upload', $config);
            if (!$this->upload->do_upload('foto')) {
                // jika foto gagal di inputkan
                echo "failed upload foto";
            } else {
                $foto = $this->upload->data('file_name');
            }
        }

        $data = [
            "email" => $email,
            "password" => $password,
            "gambar" => $foto
        ];

        if ($this->login->insert($data) > 0) {
            $this->response([
                'status' => true,
                'message' => 'data berhasil di tambahkan'
            ], 201);
        } else {
            $this->response([
                'status' => false,
                'message' => 'data gagal ditambahkan'
            ], 400);
        }
    }