sio | Socket.io CLI client and debugging tool | Socket library
kandi X-RAY | sio Summary
kandi X-RAY | sio Summary
Sio was created because I was frustrated with making temporary index files and mashing F5 when I wanted to test or debug socket.io applications.
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sio Examples and Code Snippets
Lines of Code : 18License : Strong Copyleft (CC BY-SA 4.0)
Copyvar sio = require('socket.io');
var io = sio();
app.io = io;
var io = app.io
io.attach(server);
// Socket.io middleware
app.use((req, res, next) => {
req.io = io;
next();
});
Community Discussions
Trending Discussions on sio
QUESTION
I am using ControlValueAccessor to pass data between a child component and a parent which works as expected but when I initialize the component I get always the error
ERROR TypeError: this.onChange is not a function
After that the code works as expected and the values are past from the Child componenet to parent correctly. The section of my code that threows the error is this.onChange(formData.selectField) after I subscribe to the change event. Sio not sure what causes this error and how to get rid of it. I have a feeling that the onChange function is not registered when i try to call it or something like that extend
...ANSWER
Answered 2022-Apr-11 at 17:34registerOnChange method is called after writeValue. In write value you're updating your form.
While it's okay to set value for FormControl within writeValue method but it's useless to listen to valueChanges at that point because value comes from consumer and we don't need to notify about it back.
So, try not to fire valueChanges event within writeValue by using emitEvent option:
QUESTION
When I run the program and I set a wrong value for _moduleParent the exception appears
and says 'Object reference not set to an instance of an object.'
I want to return a null string. How can I deal with this exception?
...ANSWER
Answered 2022-Mar-31 at 13:54XContainer.Element(XName) returns an XElement if an element with the specified name exists, otherwise it will return null. Your exception occurs because you are reading the Value property of a null reference. So you need to handle that. There are two options:
Use the built-in explicit conversions:
QUESTION
I have a question very similar to this one: Send data every 10 seconds via socket.io
But: My server is written in Python, the client is in JavaScript
The goal:
- Clients connect to server via socket.io
- Clients receive push messages
pingfrom server every n seconds - When a client sends a
pingmessage, the server broadcasts apongmessage
What works:
- Socket.io connection works fine
- Client
pingis received by server, answered withpong, which is again received by client - Server executes
ping_in_intervalsevery 5 seconds
What doesn't work:
- When server executes
ping_in_intervals(which triggers sending aping), thatpingis not received by any client - When
ping_in_intervalsloop is active, socket connections crash every minute or so. If the method is commented out, then socket connection stays stable.
Observations:
- The thread, that
ping_in_intervalsis running in doesn't seem to properly work together with the wsgi server thread. - The
ping_in_intervalsthread destabilizes the server thred, causes it to loose connections (which are reestablished right away, but they do drop every minute or so) - I think, that I'm doing something terribly wrong with threading. I have very little experience with threading in Python and don't know, where to look for the problem
Server:
...ANSWER
Answered 2022-Mar-16 at 08:52Found the solution at https://github.com/miguelgrinberg/python-socketio/blob/main/examples/server/wsgi/app.py#L16-L22
The thread, which pushes server messages every n seconds, shouldn't be started using threading, but instead using the start_background_task function of socketio.
Here's the working code:
QUESTION
I am currently using Python socket.io and aiohttp to make a Server. My client is a nodejs socket.io client. I have a thread which sends the current Time using the send function. The message from the connect event is received immediately but the messages from the Thread are only sent after the ping_timeout is reached. The log shows that the event was emitted before the timeout is reached. How do i achive that the thread immediatly sends the data, not after the timeout is reached.
Client.js
...ANSWER
Answered 2022-Mar-07 at 09:41The problem was solved when switching from Python 3.9 to 3.7.3
QUESTION
Here is the socket message I see in the browser debugger console:
I call an API operation that triggers this message over a socket.
What I TriedTo preclude inaccuracies, I started 2 instances of JMeter.
- REST API call.
- Revised version of the GitHub JMeter example of sockets.io, in which I just call a WebSocket Sampler repeatedly on wss://events.dev.myserver.com:443/socket.io/?EIO=4&transport=websocket.
I kicked off (2).
While that was running, I kicked off (1).
ExpectedEventually, (1) should show me a sampler in the View Results Tree with the message in the screenshot ("42" - GAME_STARTED)
ActualThe only messages I see look like this:
This is really all I want to do: run the appropriate sampler, a sufficient time after making the API call, to get the message.
UpdateWe succeeded in finding the message using python-socketio:
...ANSWER
Answered 2022-Feb-28 at 07:36Take a look at other fields of the HTTP Request, in particular HTTP Headers, most probably your JMeter request is missing some essential information.
My expectation is that in order to "start the game" (whatever it means) you need to open the page in the browser, authorize somehow, follow the steps of the protocol upgrade mechanism, etc. to wit exactly mimic what real browser does, all the request sequence which is prior to starting the game.
You might need to correlate dynamic parameters, add HTTP Header Manager, add HTTP Cookie Manager, etc.
QUESTION
server code:
...ANSWER
Answered 2022-Feb-27 at 15:09You seem to be using the JavaScript client documentation and applying that to the Python client. The Python client is not a clone, so please use the Python documentation instead. For callbacks: https://python-socketio.readthedocs.io/en/latest/client.html#event-callbacks.
Example ack that returns two values to the other side:
QUESTION
I am trying to have two-way communication between two clients but as soon as the dumps I am no longer able to send any messages from the client file The send message is what I believe is blocking the get part. Anyone know how to fix this? Thanks in advance
(i am able to send message one time from client to client_led but not after that)
...ANSWER
Answered 2022-Feb-15 at 04:59I think the GPIO_read.get_control_code() blocks the event loop.
Which makes you are not able to receive new message anymore.
You can try to put this function into thread pool executor to avoid this problem. You can use asyncio.loop.run_in_executor in your condition.
QUESTION
I want to display some sensors data from raspberry pi (using python socketio) in react as frontend and I am using nodejs as backend. Data is currently displaying in the console (nodejs) but I can't seem to figure out how it will displayed in react. Sorry for this basic question but I can't seem to find a reasonable way to implement this. Here are my codes for raspberry pi, node and react.
...ANSWER
Answered 2022-Feb-08 at 20:50I solve this whole thing using websockets. Made two nodejs websocket servers. One is connected with raspberry pi via port 5000 and other is connected to react via port 4001. Code for raspberrypi python, nodejs server and react client is given below. rpi code:
QUESTION
I want to simply connect socket.io-client to python server, but for some reason it's keep failing. Initially I start my python server and then try to connect JavaScript as my client server after following that process what I see is JavaScript client server is keep trying to connect and failing with following error:
websocket.js:88 WebSocket connection to 'ws://localhost:5100/socket.io/?EIO=4&transport=websocket' failed:
and python server also repeating following error:
(10448) accepted ('127.0.0.1', 61471) 127.0.0.1 - - [01/Feb/2022 15:14:01] "GET /socket.io/?EIO=4&transport=websocket HTTP/1.1" 400 136 0.000000
I am using python3.10 with socketio following Document:
https://python-socketio.readthedocs.io/en/latest/.
Also tried version compatibility:
https://pypi.org/project/python-socketio/
pip3 freeze
I have tried multiple version for python-engineio and python-socketio to match my socket.io-client but no improvements.
...ANSWER
Answered 2022-Feb-01 at 22:58If you want to perform websocket, i'll recommend using WebSocket package built-in and websocket from gevent.
Here what I have done to achieve a thing similar as what you want to do :
QUESTION
I want to fit a sum of a polynomial and a sine to a data set.
I do not manage to pass a set of initial values for the coefficients (initial guess) into the function. I know that the asterisk (*) packs the variable.
I define the function
...ANSWER
Answered 2022-Jan-24 at 15:11The curve_fit function internally calls the target function like
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