Note upload applet interface
The need for the return of the interface data into JavaScript objects
// JSON.parse () converts the data format into JSON JavaScript object
JSON.parse (res.data)
Official Documents
https://developers.weixin.qq.com/miniprogram/dev/api/network/upload/wx.uploadFile.html
wx.chooseImage ({ Success (RES) { const = tempFilePaths res.tempFilePaths wx.uploadFile ({ URL: 'https://example.weixin.qq.com/upload', // only exemplary, non-real interface address the interface returned the JSON filePath: tempFilePaths [0], name: 'File', formData: { 'User': 'Test' }, Success (RES) { // need to upload JSON.parse because the interface returns a string the console.log (typeof res.data) the let the JSON.parse Data = (res.data) // do something } }) } })