wx.checkIdentitySession(Object object)

# wx.checkIdentitySession(Object object)

Check the system login state, during the system login state in effect, you can call the wx.getMiniProgramCode 、wx.getIdentityCode Silently obtains the login credentials.

# parameter

# Object object

attribute	type	Required	Introductions
success	function	no	Interface calls a successful callback function
fail	function	no	Interface to call a failed callback function
complete	function	no	The callback function at the end of an interface call

# object.fail callback

# parameter

# Object res

attribute	type	Introductions
errCode	number	Error code
errMsg	string	Error message

**res.errCode **

errCode	Introductions

# sample code

wx.checkIdentitySession({
  success () {
      console.log('system login status in effect. ')
  },
  fail (res) {
      console.log('system login failed. ')
  }
})