The express.js tutorial I found seemed very similar to the fastapi backend one, and both tutorial ended with saying “now create the font end by selecting from one of the following…” before proceeding to give me a choice of React, Vue, and Svelte tutorials.
In case it’s not clear I’d like to use Express.Js for basic front end functionality, and then use FastAPI for specific things such as a chat page/component
Have you had a chance to check out our Express web app sample? That should cover getting tokens for a user on login - At that point you’d need to pass a user’s access token as an Authorization header to your API. Something similar to what is shown here in our React sample: