getWXContext | Weixin public doc

# getWXContext

Gets WeChat call context in cloud function. This does not require an incoming parameter, and returns the following fields:

Fields	Description	Prerequisite	Minimum Version
OPENID	Mini Program user openid	When a cloud function is called on Mini Program
APPID	Mini Program AppID	When a cloud function is called on Mini Program
UNIONID	Mini Program user unionid	When a cloud function is called on Mini Program and when unionid can be obtained
ENV	Environment ID of a cloud function	None	0.6.0

# Use Case

const cloud = require('wx-server-sdk')

exports.main = async (event, context) => {
  const {
    OPENID,
    APPID,
    UNIONID,
    ENV,
  } = cloud.getWXContext()

  return {
    OPENID,
    APPID,
    UNIONID,
    ENV,
  }
}