Flask SocketIO & uWSGI causes 'TypeError: 'SocketIO' object is not callable'

Flask SocketIO & uWSGI causes 'TypeError: 'SocketIO' object is not callable'

我目前正在构建一个应用程序,它结合使用 Flask 和 Flask SocketIO 来处理 HTTP 和 WebSocket 流量的组合。在服务器上部署我的应用程序并添加 uWSGI 和 Nginx 作为网关后,wsgi 脚本在日志中给我以下错误:

TypeError: 'SocketIO' object is not callable
[pid: 4262|app: 0|req: 3/8] XXX.XXX.XXX.XXX () {46 vars in 912 bytes} [Tue Jul 11 14:57:25 2017] GET / => generated 0 bytes in 0 msecs (HTTP/2.0 500) 0 

uWSGI documentation 中所述,我在配置文件中将 set http-websockets 标志添加为 true。 Flask SocketIO 文档声明他们支持 uWSGI:

The other alternative is to use the uWSGI web server, which comes with WebSocket functionality. The use of gevent is also a performant option, but slightly lower than eventlet.

有谁知道我做错了什么?我正在使用最新版本的 Nginx。我在这里先向您的帮助表示感谢。我的设置:

烧瓶服务器(mymod.server)

from flask import Flask
from flask_socketio import SocketIO, emit


server = Flask(__name__)
io = SocketIO(server)

@server.route("/")
def index():
    return server.send_static_file("index.html")

@io.on("ping")
def ping():
    emit("pong")

WSGI 脚本(项目的根目录)

from mymod.server import io

if __name__ == "__main__":
    io.run(host="127.0.0.1", port=8080)

WSGI 配置

# Configuration file for Nginx
[uwsgi]
module = wsgi:io
master = true
processes = 5
buffer-size=32768
http-websockets = true
socket = server.sock
chmod-socket = 666
vacuum = true
die-on-term = true
logto = /var/log/uwsgi/%n.log

Nginx 配置

server {
    listen 443 http2 ssl;
    listen [::]:443 http2 ssl;

    server_name _;
    server_tokens off;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/user/project/server.sock;
    }

    location /socket.io/ {
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_pass http://unix:/home/user/project/server.sock;
    }
}

我如何启动我的服务器

$ uwsgi --ini config.wsgi.ini

事实证明,Flask-SocketIO 只是挂载到原始 app 对象上,替换了以下内容:

[uwsgi]
module = wsgi:io

收件人:

[uwsgi]
module = wsgi:app

会工作,但 uwsgi 对 SocketIO 的支持仍然很糟糕,据我所知,gunicorn 是一个更好的选择。