使用Flask SocketIO注册服务器事件 [英] Registering server events with flask SocketIO
问题描述
我正在使用 https://github.com/miguelgrinberg/Flask-开始使用flask和SocketIOSocketIO .
我想将字符串发布到Flask服务器,然后通过SocketIO将其发送到客户端网页.
I want to post a string to the flask server and then via SocketIO, emit this to the client webpage.
通常我的发布代码如下:
Normally my posting code would look like:
@app.route('/index',methods=['POST'])
def index():
token = request.form['token']
据我了解,需要以下内容将数据从服务器发送到客户端页面:
As far as I understand, something like the following is needed to emit data from the server to client page:
@socketio.on('event', namespace='/test')
def test_message(message):
emit('my response', {'data': message['data']}, broadcast=False)
我不清楚如何将这两个功能结合在一起,以便在发布后将令牌的值发送给客户端.
It's not clear to me how to tie the 2 functions together so that on a post the value of token would be emitted to the client.
我在文档中找到的最接近的是:
The closest I can find in the docs is:
Receiving Messages¶
When using SocketIO messages are received by both parties as events. On the client side Javascript callbacks are used. With Flask-SocketIO the server needs to register handlers for these events, similarly to how routes are handled by view functions.
我该如何工作?
推荐答案
您的假设是正确的.首先,将数据发布到Flask:
You're right with your assumptions. First, POST the data to Flask:
.ajax({
url: "{{ url_for('index') }}",
method: "POST",
data: {
token: "value"
}
});
您的视图看起来
@app.route('/index',methods=['POST'])
def index():
token = request.form['token']
test_message(dict(data=token))
return '1'
并且您的 JavaScript 看起来会有些变化喜欢
And your JavaScript would look something like
var socket = io.connect('http://' + document.domain + ':' + location.port + namespace);
socket.on('connect', function() {
socket.emit('my event', {data: 'I\'m connected!'});
});
socket.on('my response', function(msg) {
// do something with msg.data
});
这篇关于使用Flask SocketIO注册服务器事件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!