Simple redux middleware to make fetching data more consistent - each request will dispatch a START action, along with either a RECEIVE or ERROR.

Actions named with an @@ prefix will be handled by this middleware; an optional helper function is provided to ensure that the actions intended for this middleware are formatted correctly.

// using the fetchAction helper function
const getData = () => fetchAction('GET_DATA', fetch(url))

// or manually formatting the action
const getData = () => ({
  type: '@@GET_DATA',
  requestToMake: fetch(url),
})

export default connect(null, { getData })(Child)

// example reducer for the above

const actionHandlers = {
  'GET_DATA_START': (state) => ({
    ...state,
    isLoading: true,
   }),
   'GET_DATA_RECEIVE': (state, action) => ({
	...state,
	isLoading: false,
	data: action.payload,
    }),
    'GET_DATA_ERROR': (state) => ({
	...state,
	isLoading: false,
	isError: true,
    }),
}