Question

Where to run FastAPI backend, and how to connect to it with JavaScript running on a React App in a static site?

I have a backend written in Python with FastAPI - which handles some database stuff - but am not sure where I’m supposed to run it.

I also have a ReactJS frontend, which sends a request to my backend when a certain function is called.

I’m not sure how to link the two. During development, to link them, I simply ran the backend on 127.0.0.1:5000, and added a proxy of “localhost:5000” to my ReactJS package.json file.


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Bobby Iliev
Site Moderator
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June 26, 2024
Accepted Answer

Hi there,

What you could do here is to use the DigitalOcean App Platform:

https://docs.digitalocean.com/products/app-platform/

First you will start by deploying your React app as a static component as described in this post here:

https://www.digitalocean.com/community/tutorials/how-to-deploy-a-react-application-to-digitalocean-app-platform

After that, you can deploy your FastAPI as a web service component to the same app. That way you will have two separate components both under the same app:

https://docs.digitalocean.com/products/app-platform/how-to/manage-components/

For your backend app, you could set its route to something like /api and then you will be able to call that /api route from your React frontend service.

If your backend service needs a database, you could also add a database service to that app as described here:

https://docs.digitalocean.com/products/app-platform/how-to/manage-databases/

Here is a quick video that shows how you could do that but with a Laravel backend instead:

Hope that this helps!

- Bobby

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