APIActive

Socket.IO Server API

Real-time bidirectional event-based communication server API for Socket.IO v4.x.

Open source page ↗

Field note

What it does

Server API reference for Socket.IO 4.x providing Server, Namespace, Socket, Client, and Engine classes with events, methods, and flags for managing WebSocket connections.

Capabilities

Available capabilities

Room ManagementEvent EmittingNamespace ManagementAcknowledgementsCross-server emitMiddleware SupportEvent emissionAdapter IntegrationWebSocket ServerTimeout handlingBroadcasting

Tags

Tags

WebSocketReal-timeJavaScript

Ways to use it

Ways to use it

npm

javascript / socket.io

sdk

JavaScript / socket.io

Product features

Product features

Client API

Constructor ​

Event: 'error' ​

Event: 'ping' ​

Event: 'reconnect_attempt' ​

Event: 'reconnect' ​

Events ​

IO ​

io.protocol ​

io( [url][, options] ) ​

Manager ​

new Manager(url [, options] ) ​