Wechat applet must use interface "suggestions collection"

Hello everyone , I meet you again , I'm your friend, Quan Jun .

Wechat applet must use interface

• obtain openid
  • uni-app Example

obtain openid

openid It is a unique identification of wechat users , Only valid for current micro signals . Wechat development , Users need authorization to use the applet , This is the time to use openid Bind this user . Can be used to permanently mark a user , It is also wechat JSAPI Mandatory parameters for payment .

In general, they will code The value goes to the back end to get openid, Because in the front end it may be caught or crawled to your appid and secret, unsafe , If you put it on the back end to get openid, Unless your server is attacked , Or it's safe . The following example is obtained directly at the front end , When this is understood , It can be changed directly to the back end , It's the same logic .

uni-app Example

uni.login({ 
   
  success: res => { 
   
    //code value (5 Minutes out )
    console.info(res.code);
    // Applet appid
    let appid = ''; // Fill in appid
    // Applet secret
    let secret = ''; // Fill in secret
    //wx Interface path 
    let url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' + appid + '&secret=' + secret + '&js_code=' + res.code + '&grant_type=authorization_code';
    uni.request({ 
   
      url: url, //  Request path 
      method: 'GET', // Request mode 
      success: result => { 
   
        // Response successful 
        // Here we get openid 了 
        console.info(result.data.openid);
        uni.setStorage({ 
   
          key:'user',
          data: result.data.openid
        })
      },
      fail: err => { 
   } // Failure 
    });
  }
});

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