wx.getUserInfo(OBJECT)

---

To get user information, withCredentials is true when you need to call the wx.login interface first

OBJECT parameter description:

Note: When withCredentials is true, wx.login has been called before and the login state has not expired, the data returned will contain sensitive information such as encryptedData, iv, and when withCredentials is false, no login status is required, and the data returned does not contain sensitive information such as encryptedData, iv.

Sample code:

wx.getUserInfo({
  success: function(res) {
    var userInfo = res.userInfo
    var nickName = userInfo.nickName
    var avatarUrl = userInfo.avatarUrl
    var gender = userInfo.gender //性别 0：未知、1：男、2：女 
    var province = userInfo.province
    var city = userInfo.city
    var country = userInfo.country
  }
})

EncryptedData decrypts the following JSON structure, see Encryption data decision algorithm

{
    "openId": "OPENID",
    "nickName": "NICKNAME",
    "gender": GENDER,
    "city": "CITY",
    "province": "PROVINCE",
    "country": "COUNTRY",
    "avatarUrl": "AVATARURL",
    "unionId": "UNIONID",
    "watermark":
    {
        "appid":"APPID",
    "timestamp":TIMESTAMP
    }
}

Bug & Tip

1. tip : wx.getUserInfo authorization, so be compatible with scenarios in which the user refuses authorization.

The UnionID mechanism explains:

If the developer has multiple mobile apps, website apps, and public accounts (including applets), you can distinguish user uniqueness by unionid, because the user's unionid is unique as long as it's a mobile app, website app, and public account (including a small program) under the same WeChat open platform account. In other words, the same user, unionid is the same for different applications under the same WeChat open platform.

Apps, public numbers, and small programs of the same subject under the same WeChat open platform, if the user has paid attention to the public number, or has logged into the app or public number, then when the user opens the small program, the developer can obtain the user's UnionID directly through wx.login without the user's re-authorization.

WeChat open platform binding small program process

Prerequisite: WeChat open platform account must have completed the developer qualification

Developer Qualification Process:

Sign in to WeChat Open Platform (open.weixin.qq.com) - Account Center - Developer Qualification

Binding process:

Sign in to WeChat Open Platform (open.weixin.qq.com) - Management Center - Public Account - Binding Public Accounts