authentication.js

import API from 'api'
import { replacePath} from 'redux-simple-router'

export const AUTHENTICATE = 'AUTHENTICATE'
export const AUTHENTICATE_SUCCESS = 'AUTHENTICATE_SUCCESS'
export const AUTHENTICATE_FAILURE = 'AUTHENTICATE_FAILURE'

export const VERIFYING_TOKEN = 'VERIFYING_TOKEN'
export const VERIFY_TOKEN_FAILURE = 'VERIFY_TOKEN_FAILURE'
export const VERIFY_TOKEN_SUCCESS = 'VERIFY_TOKEN_SUCCESS'

export function authenticateAndRedirectTo (username, password, returnPath) {
  return dispatch => {
    dispatch({ type: AUTHENTICATE, payload: { username }})

    API.Authentication.authenticate(username, password, function(err, result) {
      if (err) return dispatch({ type: AUTHENTICATE_FAILURE, payload: { username, error: err }})
      dispatch({ type: AUTHENTICATE_SUCCESS, payload: { username, result }})
      dispatch(replacePath(returnPath))
    })
  }
}

export function verifyTokenAndRedirectTo (returnPath) {
  const redirectToLogin = replacePath('/login', { returnPath })
  const token = window.localStorage.getItem('token')

  if (!token) return redirectToLogin

  return dispatch => {
    dispatch({ type: VERIFYING_TOKEN, payload: null })
    API.Authentication.verifyToken(token, (err, result) => {
      if (err) {
        dispatch({ type: VERIFY_TOKEN_FAILURE, payload: null, meta: { token }})
        return dispatch(redirectToLogin)
      }

      dispatch({ type: VERIFY_TOKEN_SUCCESS, payload: result, meta: { token }})
      dispatch(replacePath(returnPath))
    })
  }
}