tencent cloud

var uploadFile = function () {
   // url encode format for encoding more characters
   var camSafeUrlEncode = function (str) {
     return encodeURIComponent(str)
       .replace(/!/g, '%21')
       .replace(/'/g, '%27')
       .replace(/\\(/g, '%28')
       .replace(/\\)/g, '%29')
       .replace(/\\*/g, '%2A');
   };

   // get the signature
   var getAuthorization = function (options, callback) {
     wx.request({
       method: 'GET',
       // Replace it with your own server address to get the post upload signature
       url: 'http://127.0.0.1:3000/post-policy?ext=' + options.ext,
       dataType: 'json',
       success: function (result) {
         var data = result. data;
         if (data) {
           callback(data);
         } else {
           wx. showModal({
             title: 'Failed to obtain temporary key',
             content: JSON. stringify(data),
             showCancel: false,
           });
         }
       },
       error: function (err) {
         wx. showModal({
           title: 'Failed to obtain temporary key',
           content: JSON. stringify(err),
           showCancel: false,
         });
       },
     });
   };

   var postFile = function ({ prefix, filePath, key, formData }) {
     var requestTask = wx.uploadFile({
       url: prefix,
       name: 'file',
       filePath: filePath,
       formData: formData,
       success: function (res) {
         var url = prefix + '/' + camSafeUrlEncode(key).replace(/%2F/g, '/');
         if (res. statusCode === 200) {
           wx.showModal({ title: 'Uploaded successfully', content: url, showCancel: false });
         } else {
           wx. showModal({
             title: 'Upload failed',
             content: JSON. stringify(res),
             showCancel: false,
           });
         }
         console.log(res.header['x-cos-request-id']);
         console.log(res.statusCode);
         console.log(url);
       },
       fail: function (res) {
         wx. showModal({
           title: 'Upload failed',
           content: JSON. stringify(res),
           showCancel: false,
         });
       },
     });
     requestTask.onProgressUpdate(function (res) {
       console.log('Progress:', res);
     });
   };

   // upload files
   var uploadFile = function (filePath) {
     var extIndex = filePath. lastIndexOf('.');
     var fileExt = extIndex >= -1 ? filePath. substr(extIndex + 1) : '';
     getAuthorization({ ext: fileExt }, function (AuthData) {
       // Parameters used in the request
       var prefix = 'https://' + AuthData.cosHost;
       var key = AuthData.cosKey; // It is safer to let the server decide the file name
       var formData = {
         key: key,
         success_action_status: 200,
         'Content-Type': '',
         'q-sign-algorithm': AuthData.qSignAlgorithm,
         'q-ak': AuthData.qAk,
         'q-key-time': AuthData.qKeyTime,
         'q-signature': AuthData.qSignature,
         policy: AuthData. policy,
       };
       if (AuthData. securityToken)
         formData['x-cos-security-token'] = AuthData.securityToken;
       postFile({ prefix, filePath, key, formData });
     });
   };

   // Select a document
   wx.chooseMedia({
     count: 1, // default 9
     sizeType: ['original'], // You can specify whether it is the original image or the compressed image, here the original image is used by default
     sourceType: ['album', 'camera'], // You can specify whether the source is an album or a camera, and the default is both
     success: function (res) {
       uploadFile(res. tempFiles[0]. tempFilePath);
     },
   });
};