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Questions tagged [flask-socketio]

Flask-SocketIO lets Flask python applications access low latency bi-directional communications between the clients and the server

Flask-SocketIO is an open source library which implements the abstraction, for delivering low latency client-server communication in a application developed by Miguel Grinberg.

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flask socketio - need to emit twice with sleep in between

I have a development where a click of a button on the client webpage initiates the server to move a motor connected to the server box by USB. What I would like is for the server to emit a message on receipt of the client request to acknowledge the…
Fonty
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Flask-Login and Flask-SocketIO current_user.is_authenticated issue

I am using Flask-Login to log in users and wanted to be able to log out a user (I want to track session times) if they closed their browser before manually logging out of the Flask app. This can be done with…
Don Smythe
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Websockets "invalid frame header" error Flask-Socket IO

I am using flask-socketio and everything works awesome but when sending one value using emit, the chrome developer tools is showing error BUT EVERYTHING IS WORKING AS EXPECTED. "WebSocket connection to…
Raj Kishan AV
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How to connect multiple clients in Flask using socket.io?

I want to get data in my Flask server from a socket.io client. My setting is: Client1 calls method request_data on server. The method request_data then emits 'client2' event on Client2. I have the following method in my flask…
user2212461
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Angular single page app and socketio multiple sockets

I have yet to find a solution or any information on this topic. Basically I am developing a chat app with flask, socketio, and angularjs. I created a single page app with angularjs so when I click for example a register button this page comes into…
sebenalern
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socketio connects with polling after a websocket connection is established. blocks communication

I've been struggling with a strange problem with my websocket connection. I use socketio 1.4.5 to connect to the server (flask, flask-socketio, gunicorn, nginx). The problem is that about 1 of 8 connection attempts socketio connects using xhr…
Easyrider
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merge flask_socketio into my own flask project

I developed my restful api flask project (let's call it 'MYOWN'). And then, because of some needs to implement functions like 'notification', 'chat', and so on, I tried to merge my project with simple socketIO example project. I want to run my…
HT.Cha
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Why is data being lost in socket.io?

I'm building a small app that tails a log and displays it on the client. However, when I append lines to my log, I lose some data. Here's the relevant Python handler: @socketio.on('Request logs') def handle_request_logs(): logfile =…
erip
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Streaming live data in HTML5 graphs and tables

I have developed a python web application using flask microframework. I have some interactive plots generated by Bokeh and some HTML5 tables. My question is how I can update my table and graph data on fly? Should I use threading class and set the…
Hamid K
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flask-socketio: before_send/after_send

On flask socket-io, if there are 2 users connected and user1 sends a message to user2, how can I intercept the payload being sent to user2 (on the app context of user2, in order to modify it)? I do not want to modify the payload being sent by user1…
ptou
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Flask-SocketIO Error during websocket handshake Unexpected response code: 400

This seems similar to some unanswered questions on stack overflow. I am running a python socketio app on heroku and I get this error when I launch the website : Error during websocket handshake Unexpected response code: 400 I kept thinking this…
Denny George
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Socket IO 1.x server library for python

is there any socket io 1.x server library for python? I have found https://github.com/miguelgrinberg/Flask-SocketIO but only support for socket io version 0.9.16, this is the author say : Please do not use the new socket.io 1.0 client libraries,…
Tigor Mangatur Manurung
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Flask.socket_io blocking calls when database queries are run

I am trying to use socket_io with my flask application. The problem is when i run database queries, like in the url_route function below. The first time the page loads properly but on consecutive calls the process goes into a blocking state. Even…
codename_subho
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How can I made a flask app availible for one client at the same time

I want to make a webapp which can only be edited by one client at the same time. I use flask and flask-socketio. After the authorized client leaves (disconnect event in socketio) the next should be able to edit things. Right now I have multiple…
wenzul
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Flask python - Single API shouldn't timeout

I'm using flask framework, and we have set in aws that API should timeout at 25s, but now I just want one API to not timeout at 25s (and I can't change AWS settings) -> as all other API's should timeout at 30s. What is the way to do this? I'm not…
sadaa
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