2. Run API Server Locally

This runs a preview version of the API server locally, with hot reload, for rapid iteration.

1. Run FastAPI Dev Server

1. Run this command from the root of the repo, in the Visual Studio Code terminal:

   fastapi dev src/api/main.py
   

2. Verify that this starts a development server

   • You should see: a pop-up dialog with two options to view the application
   • Select the "Browser" option - should open the preview in a new browser tab
   • Check the browser URL - should be a path ending in github.dev
   • Check the page content - should show the "Hello World" message

2. Connect the Dots! 💡

1. The github.dev ending validates the server is hosted by GitHub Codespaces

   • This verifies we are running in the (local) dev environment.
   • When deployed to production, you'll see containerapps.io (for ACA).

2. What just happened?

   • The dev server ran the main.py defined application with 2 routes
   • The default route / returns the "Hello world" message (see line 46)
   • This confirms that our application server is running successfully.

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CONGRATULATIONS. You just ran the FastAPI app and tested its default endpoint