Question

我正在尝试使用flask socketio来检索一些现场推文，目前我正在玩socketio看看它是如何工作的。但在我的测试中，我不时得到400（BAD REQUEST）。我想知道这是什么问题。

这是错误示例：

socket.io.js:3511 POST http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=LOMYW0D&sid=c81baa220764437184a14366357c6d3d 400 (BAD REQUEST)Request.create @ socket.io.js:3511Request @ socket.io.js:3424XHR.request @ socket.io.js:3352XHR.doWrite @ socket.io.js:3365(anonymous function) @ socket.io.js:3884(anonymous function) @ socket.io.js:4747proxy @ socket.io.js:1197(anonymous function) @ socket.io.js:4762(anonymous function) @ socket.io.js:4742exports.encodePacket @ socket.io.js:4541encodeOne @ socket.io.js:4741eachWithIndex @ socket.io.js:4760map @ socket.io.js:4767exports.encodePayload @ socket.io.js:4746Polling.write @ socket.io.js:3883Transport.send @ socket.io.js:2912Socket.flush @ socket.io.js:2623Socket.sendPacket @ socket.io.js:2683Socket.ping @ socket.io.js:2587(anonymous function) @ socket.io.js:2574 socket.io.js:3511 GET http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=LOMYPYb&sid=c81baa220764437184a14366357c6d3d 400 (BAD REQUEST)Request.create @ socket.io.js:3511Request @ socket.io.js:3424XHR.request @ socket.io.js:3352XHR.doPoll @ socket.io.js:3382Polling.poll @ socket.io.js:3795Polling.onData @ socket.io.js:3834(anonymous function) @ socket.io.js:3385Emitter.emit @ socket.io.js:4389Request.onData @ socket.io.js:3546Request.onLoad @ socket.io.js:3627xhr.onreadystatechange @ socket.io.js:3499 socket.io.js:3511 POST http://127.0.0.1:5000/socket.io/?EIO=3&transport=polling&t=LOMYeOF&sid=c81baa220764437184a14366357c6d3d 400 (BAD REQUEST)

我的服务器端代码（python flask）：

from flask import Flask
from flask_socketio import SocketIO
app = Flask(__name__)
app.config["SECRET_KEY"] = "secret!"
socketio = SocketIO(app)

def root():
    return app.send_static_file("index.html")

@socketio.on("connect", namespace="/npTweet")
def connectServer():
    print("Client connected")
    socketio.emit("connected", namespace="/npTweet")


@socketio.on("startTweets", namespace="/npTweet")
def tweetStreaming():
    print("Start streaming tweets...")
    socketio.emit("streamTweets", {"stream_result": "test"}, namespace="/npTweet")


if __name__ == "__main__":
    socketio.run(app, debug=True)

我的客户端代码：

socket = io.connect("http://" + document.domain + ":" + location.port + "/npTweet");
console.log("http://" + document.domain + ":" + location.port + "/npTweet");
// listen to the event 'connected'
socket.on("connected", function(data){
  console.log("listening connected...");
  socket.emit("startTweets")
});

socket.on("streamTweets", function(data){
  console.log("listen streamTweets...");
  console.log(data.stream_result)
});

这是我启动index.html页面时的初始输出：

http://127.0.0.1:5000/npTweet
listening connected...
listen streamTweets...
test

但是在30秒左右之后，它开始出现前400个错误请求错误，接着是以下结果：

listening connected...
listen streamTweets...
test

然后在30秒后，它会再次执行错误请求和结果。我哪里做错了？任何帮助将不胜感激。

对于客户端，我正在使用socketio js 1.4.5

for python：烧瓶SocketIO == 2.5 蟒-engineio == 0.9.2

Answer 1

这也是作为GitHub问题发布的here。

根据新的Flask 0.11 CLI，问题是Flask服务器是以flask run启动的。不幸的是，这种启动服务器的方法绕过了Socket.IO代码。解决方案是运行脚本，以便if __name__ == 'main':块中的代码运行。

烧瓶socketio 400（BAD REQUEST）

1 个答案: