React + redux error

1

after login button press I want to check whether fields are empty or not. But I faced this error.
Error: Actions must be plain objects. Use custom middleware for async actions. This is my code.

export const loginUser = (user) => {
  return (dispatch) => {
    console.log("checker");
    axios.post('/api/users/login', user)
      .then(res => {
        console.log(res.data);
      })
      .catch(err => {
        dispatch({
          type: GET_ERRORS,
          payload: err.response.data
        });
      });
  }
}
3

You need other libraries to handle async actions in redux. Take a look at

Redux-Thunk and Redux-Saga.

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