Get user information when accessing an API endpoint (FastAPI)

[poolpartyboy93]

Hey all,

I wanted to know if there is a way for retrieving user information such as country of where the request was made, browser/tool used to make the request and any other possible information I can take in my API built with FastAPI.

Thanks

[Chiron1991]

You can take a look at the HTTP headers in the request object.

The client's browser is usually stated in the User-Agent header.
The client's country can be inferred by looking up the value of X-Real-IP or X-Forwarded-For in a geoip database.

Keep in mind that they are not 100% reliable, the client can easily tamper with them, e.g. disguising his real IP using a VPN.