用户的IP地址可以使用以下片段检索:

from flask import request
print(request.remote_addr)

我有Nginx和下面的Nginx配置:

server {
    listen 80;
    server_name xxxxxx;
    location / {
               proxy_set_header   Host                 $host;
               proxy_set_header   X-Real-IP            $remote_addr;
               proxy_set_header   X-Forwarded-For      $proxy_add_x_forwarded_for;
               proxy_set_header   X-Forwarded-Proto    $scheme;

               proxy_pass http://x.x.x.x:8000;
        }
}

@tirtha-r解决方案对我有用

#!flask/bin/python
from flask import Flask, jsonify, request
app = Flask(__name__)

@app.route('/', methods=['GET'])
def get_tasks():
    if request.environ.get('HTTP_X_FORWARDED_FOR') is None:
        return jsonify({'ip': request.environ['REMOTE_ADDR']}), 200
    else:
        return jsonify({'ip': request.environ['HTTP_X_FORWARDED_FOR']}), 200

if __name__ == '__main__':
    app.run(debug=True,host='0.0.0.0', port=8000)

我的请求与回应:

curl -X GET http://test.api

{
    "ip": "Client Ip......"
}

如果你使用Gunicorn和Nginx环境，那么下面的代码模板适合你。

addr_ip4 = request.remote_addr

下面是最简单的解决方案，以及如何在生产中使用。

from flask import Flask, request
from werkzeug.middleware.proxy_fix import ProxyFix
app = Flask(__name__)
# Set environment from any X-Forwarded-For headers if proxy is configured properly
app.wsgi_app = ProxyFix(app.wsgi_app, x_host=1)

@app.before_request
def before_process():
   ip_address = request.remote_addr

添加include proxy_params到/etc/nginx/sites-available/$project。

  location / {
    proxy_pass http://unix:$project_dir/gunicorn.sock;
    include proxy_params;
  }

include proxy_params转发ProxyFix解析的以下报头。

$ sudo cat /etc/nginx/proxy_params 
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;

请参阅文档，了解如何访问Request对象，然后从同一个Request对象获取属性remote_addr。

代码示例

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

有关更多信息，请参阅Werkzeug文档。

下面的代码总是给出客户端的公共IP(而不是代理背后的私有IP)。

from flask import request

if request.environ.get('HTTP_X_FORWARDED_FOR') is None:
    print(request.environ['REMOTE_ADDR'])
else:
    print(request.environ['HTTP_X_FORWARDED_FOR']) # if behind a proxy