Capturing IP Address & Session in Log File

I have created a custom handler that allows me to write logs to a database. Now I need to use that same logger to capture the user's IP address and Session related data in the database, as well. Suggestions, please?

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To capture the IP Address:
$request = \Config\Services::request();
$request->getIPAddress(),

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I was able to capture session data with: $_SESSION['username'],
$_SESSION['user_id'],

If the user is behind a Proxy Server you will have trouble getting their IP Address.

What did you Try? What did you Get? What did you Expect?

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