# SocketTask wx.connectSocket(Object object)

with Promise style call: Not supported

Mini Program plugin: Support, need to Mini Program base library version no less than 1.9.6

Create a WebSocket Connect. Please read carefully before usingRelated notes。Recommended use SocketTask The way to manage webSocket Link, the life cycle of each link is more controllable. There are multiple simultaneous webSocket In the case of links to wx Prefixes may bring up some of the situations that are not expected.

# parameter

# Object object

attribute	type	Default values	Required	Introductions	Minimum version
url	string		yes	Developer Server wss Interface address
header	Object		no	HTTP Header，Header Can not be set Refer
protocols	Array.&ltstring&gt		no	Subprotocol array	1.4.0
tcpNoDelay	boolean	false	no	establish TCP At the time of the connection. TCP_NODELAY Set up	2.4.0
perMessageDeflate	boolean	false	no	Enable compression expansion	2.8.0
timeout	number		no	Timeout in milliseconds	2.10.0
success	function		no	Interface calls the successful callback function
fail	function		no	Interface calls failed callback functions
complete	function		no	Callback function at the end of an interface call (both successful and unsuccessful calls are executed)

# Return value

# SocketTask

Start from base library version 1.7.0. Please remaining backward compatible.

WebSocket quest

# Concurrency number

1.7.0 And above versions can exist at most 5 individual WebSocket Connect.
1.7.0 In the following versions, a Mini Program can only have one WebSocket Connection, if one currently exists WebSocket Connection, automatically closes the connection and recreates a WebSocket Connect.

# sample code

wx.connectSocket({
  url: 'wss://example.qq.com'
  header:{
    'content-type': 'application/json'
  },
  protocols: ['protocol1']
})