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@rtorcato/browser-common / websockets

websockets

Functions​

isWebSocketAvailable()​

isWebSocketAvailable(): boolean

Defined in: websockets/index.ts:10

Checks if WebSockets are available in the current browser.

Example​

import { isWebSocketAvailable } from '@rtorcato/browser-common/websockets'
if (isWebSocketAvailable()) connect()

Returns​

boolean

True if available, false otherwise.

createWebSocket()​

createWebSocket(url, protocols?, handlers?): WebSocket

Defined in: websockets/index.ts:28

Creates a new WebSocket connection and attaches event listeners.

Example​

import { createWebSocket } from '@rtorcato/browser-common/websockets'
const ws = createWebSocket('wss://example.com', undefined, {
  onMessage: (e) => console.log(e.data),
})

Parameters​

url​

string

The WebSocket server URL.

protocols?​

string | string[]

Optional subprotocols.

handlers?​

Optional event handlers (open, message, error, close).

onOpen?​

(event) => void

onMessage?​

(event) => void

onError?​

(event) => void

onClose?​

(event) => void

Returns​

WebSocket

The created WebSocket instance.

sendWebSocketMessage()​

sendWebSocketMessage(ws, data): boolean

Defined in: websockets/index.ts:59

Sends a message through a WebSocket if it is open.

Example​

import { sendWebSocketMessage } from '@rtorcato/browser-common/websockets'
sendWebSocketMessage(ws, JSON.stringify({ ping: 1 }))

Parameters​

ws​

WebSocket

The WebSocket instance.

data​

string | Blob | BufferSource

The data to send.

Returns​

boolean

True if sent, false otherwise.

closeWebSocket()​

closeWebSocket(ws, code?, reason?): void

Defined in: websockets/index.ts:78

Closes a WebSocket connection if it is open or connecting.

Example​

import { closeWebSocket } from '@rtorcato/browser-common/websockets'
closeWebSocket(ws, 1000, 'done')

Parameters​

ws​

WebSocket

The WebSocket instance.

code?​

number

Optional close code.

reason?​

string

Optional close reason.

Returns​

void