After the app is built, does the API still listen in some port?

[brunolm]

In development I can access the API at :8888, but when I'm running the built thing this port is not accessible. Does it keep the API listening in some port still?

[bm777]

In prod, you are not using that port anymore. In prod, the app is running via the static HTML file generated by the build command and they are in app/ folder.

Here box.html was my /pages/box.jsx file transformed.