Wechat applet request requests to carry cookies to verify whether it has logged in

Wechat applet settings cookie

WeChat pair wx.request This API Made modifications , The request initiated by the applet does not directly request our background server , Instead, it is first sent to our background server through wechat server , Since all requests are sent to our server through wechat server , Then our server will not be able to identify the originator of the request . therefore ,cookie It cannot be used in the background development of wechat applet

Because the applet does not support cookie, So you can't use the background language directly session:

1. Read after the login request is successful The return value of , header Of cookie, And store locally

// After the login request comes back , Read res Of header Of cookie
//cookie Is a unique identifier 
 wx.setStorageSync("cookie", res.header["Set-Cookie"])

Set at the next request header, And write cookie

// establish header 
var header;
header = { 
    'content-type': 'application/json', 
    'cookie':wx.getStorageSync("cookie")// Read cookie
};
  // For the request , Generally, the outer layer has a package , Then put it in the public class 
wx.request({
    url: URL,
    method: method,
    header: header,// Pass on the requested header in 
    data: datas,
    success(res) {
    // Request successful processing 

    }
)}

In this way, the server can receive the carried cookies