Does anyone know what events are built-in in Socket.io? For example: <code>connection</code>, <code>disconnect</code>, <code>join</code> etc.

Here is all I found in the official docs: <h3>Client-side events for <code>socket.io</code> object:</h3> <ul> <li> <code>connect</code>. Fired upon a successful connection. </li> <li> <code>connect_error</code>. Fired upon a connection error. Parameters: <ul> <li> <code>Object</code> error object </li> </ul> </li> <li> <code>connect_timeout</code>. Fired upon a connection timeout. </li> <li> <code>reconnect</code>. Fired upon a successful reconnection. Parameters: <ul> <li> <code>Number</code> reconnection attempt number </li> </ul> </li> <li> <code>reconnect_attempt</code>. Fired upon an attempt to reconnect. </li> <li> <code>reconnecting</code>. Fired upon an attempt to reconnect. Parameters: <ul> <li> <code>Number</code> reconnection attempt number </li> </ul> </li> <li> <code>reconnect_error</code>. Fired upon a reconnection attempt error. Parameters: <ul> <li> <code>Object</code> error object </li> </ul> </li> <li> <code>reconnect_failed</code>. Fired when couldn’t reconnect within <code>reconnectionAttempts</code> </li> </ul> <h3>Client-side events for <code>socket</code> object:</h3> <ul> <li> <code>connect</code>. Fired upon connecting.</li> <li> <code>error</code>. Fired upon a connection error Parameters: <ul> <li> <code>Object</code> error data</li> </ul> </li> <li> <code>disconnect</code>. Fired upon a disconnection.</li> <li> <code>reconnect</code>. Fired upon a successful reconnection. Parameters: <ul> <li> <code>Number</code> reconnection attempt number</li> </ul> </li> <li> <code>reconnect_attempt</code>. Fired upon an attempt to reconnect.</li> <li> <code>reconnecting</code>. Fired upon an attempt to reconnect. Parameters: <ul> <li> <code>Number</code> reconnection attempt number</li> </ul> </li> <li> <code>reconnect_error</code>. Fired upon a reconnection attempt error. Parameters: <ul> <li> <code>Object</code> error object</li> </ul> </li> <li> <code>reconnect_failed</code>. Fired when couldn’t reconnect within <code>reconnectionAttempts</code> </li> </ul> <h3>Server-side events:</h3> <ul> <li> <code>connection</code> / <code>connect</code>. Fired upon a connection. Parameters: <ul> <li> <code>Socket</code> the incoming socket.</li> </ul> </li> </ul> <h3>Edit:</h3> For the current version (<code>1.3.4</code>) the <code>reconnect_attempt</code> and <code>reconnecting</code> client-side events are synonyms.

List of Socket.io Events

Does anyone know what events are built-in in Socket.io?
For example: connection, disconnect, join etc.

What is Socket.IO Acknowledgement?

Acknowledgements In Socket.IO, this feature is named acknowledgements. You can add a callback as the last argument of the emit() , and this callback will be called once the other side acknowledges the event: io. on("connection", (socket) => { socket.

How many rooms can Socket.IO handle?

socket.io rooms are a lightweight data structure. They are simply an array of connections that are associated with that room. You can have as many as you want (within normal memory usage limits). There is no heavyweight thing that makes a room expensive in terms of resources.

How do you check if Socket.IO client is connected or not?

You can check the socket. connected property: var socket = io. connect(); console.

Here is all I found in the official docs:

Client-side events for `socket.io` object:

connect. Fired upon a successful connection.
connect_error. Fired upon a connection error.
Parameters:
- Object error object
connect_timeout. Fired upon a connection timeout.
reconnect. Fired upon a successful reconnection.
Parameters:
- Number reconnection attempt number
reconnect_attempt. Fired upon an attempt to reconnect.
reconnecting. Fired upon an attempt to reconnect.
Parameters:
- Number reconnection attempt number
reconnect_error. Fired upon a reconnection attempt error.
Parameters:
- Object error object
reconnect_failed. Fired when couldn’t reconnect within reconnectionAttempts

Client-side events for `socket` object:

connect. Fired upon connecting.
error. Fired upon a connection error
Parameters:
- Object error data
disconnect. Fired upon a disconnection.
reconnect. Fired upon a successful reconnection.
Parameters:
- Number reconnection attempt number
reconnect_attempt. Fired upon an attempt to reconnect.
reconnecting. Fired upon an attempt to reconnect.
Parameters:
- Number reconnection attempt number
reconnect_error. Fired upon a reconnection attempt error.
Parameters:
- Object error object
reconnect_failed. Fired when couldn’t reconnect within reconnectionAttempts

Server-side events:

connection / connect. Fired upon a connection.
Parameters:
- Socket the incoming socket.

Edit:

For the current version (1.3.4) the reconnect_attempt and reconnecting client-side events are synonyms.

List of Socket.io Events

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node.js

events

socket.io

Abhishek Kaushik

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Client-side events for `socket.io` object:

Client-side events for `socket` object:

Server-side events:

Edit:

Oleg

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List of Socket.io Events

Tags:

node.js

events

socket.io

Abhishek Kaushik

People also ask

1 Answers

Client-side events for socket.io object:

Client-side events for socket object:

Server-side events:

Edit:

Oleg

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Client-side events for `socket.io` object:

Client-side events for `socket` object: