Sebastian Borrazas

I'm a full stack engineer from Montevideo. Love functional programming, the web and Erlang.

Redux ApiMap – A Guide for building scalable API interaction

The biggest problem I've had so far when building applications using the React and Redux stack is that I never seem to be able to get the interaction with my JSON API right.

My very first attempts involved creating wrapper JavaScript libraries that wrapped my APIs in complicated ways. To be able to handle every case, I would add tons of options and configuration parameters. This, of course, didn't scale.

It was only when I realized that since every RESTful API is different (trust me, very different) that I knew I wasn't going to be able to build something that could handle every case elegantly.

In order to finally come up with something that felt right, I went through every single React/Redux projects I've been working on lately and came up with an extremely simple library, which only provides the most cumbersome pieces of interacting with an API: dispatching Redux actions with all the information you need. This includes:

  • Allowing URL interpolation through action parameters (e.g. /users/:id).
  • Sending the configuration necessary to both send and fetch the JSON object through the fetch API.
  • Dispatching the PENDING, SUCCESS and FAILURE actions with the necessary information.

Any other feature provided by the libraries I made simply didn't scale and only caused problems in the long term.

This is why I made Redux ApiMap — to only solve the these three problems.


ApiMap simply maps every action of every endpoint of your API to a Redux action.

This is a quickstart example to get you started:

First, create the API object with all the endpoints and actions for each endpoint:

  import { createApi } from 'redux-apimap';

  import store from './store'; // Redux store

  export default createApi(store, {
    users: {
      path: '/users',
      actions: {
        fetch: {
        create: {
          method: 'POST', // Option, submit request with POST
          multipart: true, // Option, submit request as multipart
  }, { json: true, CSRFToken: 'a7136f333552c6d4' });

This API object can already dispatch actions and be passed as a prop directly to any component that might need it. However, in order to make the api object visible throughout the entire React component tree, I recommend you use the ApiProvider, like so:

  import { ApiProvider } from 'redux-apimap';
  import { Provider } from 'react-redux';

  import api from './api';

  export default class AppWrapper extends React.PureComponent {
    render() {
      return (
        <Provider store={store}>
          <ApiProvider api={api}>
            <App />

Then, feel free to dispatch any API action, by using the api object endpoint methods (actions):

  const UsersAddButton = ({ api }) => {
    return (
        onClick={(e) => {
          const name = prompt('Enter user name');
          api.users.create({ name })
            .then(() => alert('User created!'))
            .catch((error) => alert(error));
      >+ Add new</button>

  export default connectApi(UsersAddButton);

Make sure you add the appropiate reducers to handle the API actions for each type, and that's all there is to it!