Sign-in action creator using Firebase Auth

auth.js

import { SIGNIN_SUCCESS, SIGNIN_ERROR } from "./actionTypes";
import firebase from "../../services/firebase";

// Signing in with Firebase
export const signin = (email, password, callback) => async dispatch => {
  try {
    firebase
      .auth()
      .signInWithEmailAndPassword(email, password)
      .then(() => {
        dispatch({ type: SIGNIN_SUCCESS });
        callback();
      })
      .catch(() => {
        dispatch({
          type: SIGNIN_ERROR,
          payload: "Invalid login credentials"
        });
      });
  } catch (err) {
    dispatch({ type: SIGNIN_ERROR, payload: "Invalid login credentials" });
  }
};