Get IP address of visitors using Flask for Python

Actually, what you will find is that when simply getting the following will get you the server's address:

request.remote_addr

If you want the clients IP address, then use the following:

request.environ['REMOTE_ADDR']

See the documentation on how to access the Request object and then get from this same Request object, the attribute remote_addr.

Code example

from flask import request
from flask import jsonify

@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
    return jsonify({'ip': request.remote_addr}), 200

For more information see the Werkzeug documentation.

Proxies can make this a little tricky, make sure to check out ProxyFix (Flask docs) if you are using one. Take a look at request.environ in your particular environment. With nginx I will sometimes do something like this:

from flask import request   
request.environ.get('HTTP_X_REAL_IP', request.remote_addr)   

When proxies, such as nginx, forward addresses, they typically include the original IP somewhere in the request headers.

Update See the flask-security implementation. Again, review the documentation about ProxyFix before implementing. Your solution may vary based on your particular environment.