Create a React app with Mailchimp

a dev guide by Divjoy

About this guide

This development guide walks you through everything you need to do to build a high-quality React app integrated with Mailchimp. Check out the tasks below to get started. To save time, you can also use our boilerplate, which gives you a complete React codebase with all of these tasks done for you. Okay, let's dive in!

Tasks

Setup your React app
Setup a React app using npx create-react-app and routing using React Router. There are many ways you can structure your app, but a common setup is to have an App component that defines top-level routes, with each route component imported from the /pages directory. The rest of your components should be located in your /components directory. You can then run your app locally with the npm run start command.
Setup a Node (Express.js) server
This stack requires server logic, so we'll be setting up a Node (Express.js) server that we can query from our React front-end. We suggest defining your Express.js routes in a file located at /api/index.js and then creating a file for each route handler in the/api directory. Next make sure all requests to /api/* get routed to your Express server port by defining a proxy in your package.json. Lastly, run your server with the node api command in a new terminal window.
Build your Mailchimp subscription form
Create an Express.js route at /api/newsletter that receives the user's email address and adds it to your Mailchimp list using the mailchimp-api-v3 library. Then create a newsletter subscribe form using your component library of choice and have it submit the email value to /api/newsletter. Make sure you properly validate inputs, display any errors returned by Mailchimp, and to display a confirmation message once the email has been added.

Get the code

You can get the code for this guide with our React and Mailchimp Boilerplate. You'll get a complete React codebase with Mailchimp integration, all the tasks listed above done for you, and a responsive multi-page template. It should save you about two weeks of development time.

Get the boilerplate

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