Wechat applet 7 cloud storage

Wechat applet 1- The basics of applets , Installation and use of development tools
Wechat applet 2-WXSS,WXS
Wechat applet 3- Applet lifecycle and components
Wechat applet 4- Applet api
Wechat applet 5- Real machine test
Wechat applet 6- Development of cloud - Cloud database

1. Cloud storage

Cloud development provides a piece of storage space , Provides upload files to the cloud 、 Cloud download capability with permission management , Developers can pass through... On the applet side and cloud function side API Using cloud storage .

    1). To upload pictures

 //  Let the user select an image 
    wx.chooseImage({
      success: chooseResult => {
        //  Upload images to cloud storage space 
        wx.cloud.uploadFile({
          //  Specify the cloud path to upload to 
          cloudPath: 'my-photo.png',
          //  Specifies the temporary file path of the applet for the file to be uploaded 
          filePath: chooseResult.tempFilePaths[0],
          //  Successful callback 
          success: res => {
            console.log(' Upload successful ', res)
          },
        })
      },
    })

    2). Download the pictures

 wx.cloud.downloadFile({
      //  file  ID
      fileID: 'cloud://cloud1-2gdjrvddfc6ce99e.636c-cloud1-2gdjrvddfc6ce99e-1312827414/my-photo.png', 
      success: res => {
        //  Return to temporary file path 
        console.log(res.tempFilePath)
      },
      fail: console.error
    })

    3). Delete file

 wx.cloud.deleteFile({
      // Filled in file ID
      fileList: ['cloud://cloud1-2gdjrvddfc6ce99e.636c-cloud1-2gdjrvddfc6ce99e-1312827414/my-photo.png'],
      success: res => {
        // handle success
        console.log(res.fileList)
      },
      fail: console.error
    })