fetch(`${SERVER_URL}/api/signin`, {
      method: 'POST',
      mode: 'cors',
      body: JSON.stringify({username: email, password:password})})
      .then(response => {
        if (response.status === 200) {
          response.json().then(function (data) {
            localStorage.setItem('token', data.access_token);
            dispatch({type: AUTH_USER});
            browserHistory.push('/welcome');
          });
        }})}