login.js

function receiveLoginUser (user) {
  return {type: 'RECEIVE_LOGIN_USER', payload: user}
}

function login (email, password) {
  return (dispatch) => {
    // 可以呢到再dispatch(loadingLogin(true))
    
     return axios.post("xxxx/login", { email, password }).then(response => {
       dispatch(receiveLoginUser(response.user))
     })
  }
}

export { login }

react-component.js

// react

import { login } from './login.js'

//.....omitted

const mapDispatchToProps = (dispatch) => {
  return { 
    login: (email, password) => {
      dispatch(login(email, password))
    }
  }
}

connect(null, mapDispatchToProps)(SomeComponent)