qz | API Namespace: websocket

Calls related specifically to the web socket connection.

Source:

qz-tray.js, line 1066

Members

(static) getNetworkInfo

Deprecated:

Since 2.1.0. Please use qz.networking.device() instead

Source:

qz-tray.js, line 1220

Methods

(static) connect(optionsopt) → {Promise.<(null|Error)>}

Call to setup connection with QZ Tray on user's system.

Parameters:

Name Type Attributes Description

options

Object

Configuration options for the web socket connection.

Properties

Name Type Attributes Default Description

host string | Array.<string> <optional> ['localhost', 'localhost.qz.io'] Host running the QZ Tray software.

port

Object

Config options for ports to cycle.

Properties

Name	Type	Attributes	Default	Description
`secure`	Array.<number>	<optional>	[8181, 8282, 8383, 8484]	Array of secure (WSS) ports to try
`insecure`	Array.<number>	<optional>	[8182, 8283, 8384, 8485]	Array of insecure (WS) ports to try

usingSecure boolean <optional> true If the web socket should try to use secure ports for connecting.

keepAlive number <optional> 60 Seconds between keep-alive pings to keep connection open. Set to 0 to disable.

retries number <optional> 0 Number of times to reconnect before failing.

delay number <optional> 0 Seconds before firing a connection. Ignored if options.retries is 0.

Source:

qz-tray.js, line 1101

Returns:

Type: Promise.<(null|Error)>

(static) disconnect() → {Promise.<(null|Error)>}

Stop any active connection with QZ Tray.

Source:

qz-tray.js, line 1173

Returns:

Type: Promise.<(null|Error)>

(static) getConnectionInfo() → {Object.<{socket: String, host: String, port: Number}>}

Source:

qz-tray.js, line 1227

Returns:

Details of active websocket connection

Type: Object.<{socket: String, host: String, port: Number}>

(static) isActive() → {boolean}

Check connection status. Active connection is necessary for other calls to run.

Source:

qz-tray.js, line 1080

See:

connect

Returns:

If there is an active connection with QZ Tray.

Type: boolean

(static) setClosedCallbacks(calls)

List of functions called for any connection closing event outside of an API call.

Also called when websocket#disconnect is called.

Parameters:

Name	Type	Description
`calls`	function \| Array.<function()>	Single or array of `Function({Event} event)` calls.

Source:

qz-tray.js, line 1204

(static) setErrorCallbacks(calls)

List of functions called for any connections errors outside of an API call.

Also called if websocket#connect fails to connect.

Parameters:

Name	Type	Description
`calls`	function \| Array.<function()>	Single or array of `Function({Event} event)` calls.

Source:

qz-tray.js, line 1192