Is there a way to get geolocation when the user is behind a proxy?

[Alex G]

I'm using Varnish (Fastly) between the user and App Engine (flexible). When I read the X-AppEngine-Country header it seems it is getting the IP from the proxy.

This happens even when I set app.enable('trust proxy') in Express.

Is there a way to overcome this?

[Yannick (Cloud Platform Support)]

Hello Alex,

Proxies will usually use the X-Forwarded-For header to denote which IP the request originated from. You may do your own geolocation based on that value.

As for getting X-AppEngine-Country to use the value of X-Forwarded-For, there is an open request for that feature on the Issue Tracker.

[Alex G]

Thanks, Yannick. I hope App Engine implements this since I'm interested in the geolocation that Google provides.

However, by looking at the creation date of the request (more than 5 years ago), it is probably not going to happen.

[Yannick (Cloud Platform Support)]

Older feature requests have been implemented before. Requests that get more attention on the issue tracker are often prioritized.