用javascript上传到google云存储的签名url

Question

var file = $scope.myFile;
      var fileData = file;
      var boundary = '-------314159265358979323846';
      var delimiter = "\r\n--" + boundary + "\r\n";
      var close_delim = "\r\n--" + boundary + "--";

      var reader = new FileReader();
      reader.readAsBinaryString(fileData);
      reader.onload = function(e) {
        var contentType = fileData.type || 'application/octet-stream';
        var metadata = {
          'name': 'objectName', //'lol' + fileData.name,
          'mimeType': contentType
        };

        var base64Data = btoa(reader.result);
        var multipartRequestBody =
          delimiter +
          'Content-Type: application/json\r\n\r\n' +
          JSON.stringify(metadata) +
          delimiter +
          'Content-Type: ' + contentType + '\r\n' +
          'Content-Transfer-Encoding: base64\r\n' +
          '\r\n' +
          base64Data +
          close_delim;
        var stuff = angular.fromJson('{"Expires": "1415344534", "GoogleAccessId": "[e-mail]", "Signature": "AMkhO7mt2zg+s1Dzx28yQIMSrZlDC2Xx1SzvMCAgUVyiLXs5890/nA6PKzoc1KYBcRv/ALmkNaEVhvWHxE0EfcE151c0PYSG9x7AeSpQI/3dB1UPcSqpwilS1e2sgwB9piLNvBEXLNRXiLYyTiH22zkFZHAEQonJ3J25a47fwo4="}');
        var Expires = stuff.Expires;
        var GoogleAccessId = stuff.GoogleAccessId;
        var Signature = encodeURIComponent(stuff.Signature);
        var BUCKET = 'mybucket';
        var request = $window.gapi.client.request({
          'path': '/upload/storage/v1/b/' + BUCKET + '/o',
          'method': 'POST',
          'params': {
            'uploadType': 'multipart',
            'Expires': Expires,
            'GoogleAccessId': GoogleAccessId,
            'Signature': Signature
          },
          'headers': {
            'Content-Type': 'multipart/mixed; boundary="' + boundary + '"'
          },
          'body': multipartRequestBody});

        request.execute(function(r) {
          console.log(r);
        })
      }

Answer 1

使用https://storage.googleapis.com作为宿主来组成指向所需资源的URL。您可以选择几种方法来构造基URL。以下是一些可能的组合。

作为参考，您还可以查看一个非常简单的Python片段，这可能会有所帮助。

希望能有所帮助。