Delphi ActiveX

Create a Google Cloud Storage Bucket

See more Google Cloud Storage Examples

Demonstrates how to create a Google Cloud Storage bucket. Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
sbToken: TChilkatStringBuilder;
json: TChilkatJsonObject;
http: TChilkatHttp;
url: WideString;
resp: TChilkatHttpResponse;
responseCode: Integer;
jsonResp: TChilkatJsonObject;
dt: TCkDateTime;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// This example uses a previously obtained access token having permission for the 
// scope "https://www.googleapis.com/auth/cloud-platform"

// In this example, Get Google Cloud Storage OAuth2 Access Token, 
// the service account access token was saved to a text file.  This example fetches the access token from the file..
sbToken := TChilkatStringBuilder.Create(Self);
sbToken.LoadFile('qa_data/tokens/googleCloudStorageAccessToken.txt','utf-8');

// ---- Step 1
// Create a JSON that contains the following information, replacing [VALUES_IN_BRACKETS] with the appropriate values:

// {
//   "name": "[BUCKET_NAME]",
//   "location": "[BUCKET_LOCATION]",
//   "storageClass": "[STORAGE_CLASS]"
// }

json := TChilkatJsonObject.Create(Self);
json.UpdateString('name','chilkat-ocean');
json.UpdateString('location','us');
json.UpdateString('storageClass','multi_regional');

// ---- Step 2
// Send a POST equivalent to this curl command

// curl -X POST --data-binary @[JSON_FILE_NAME].json \
//      -H "Authorization: Bearer [OAUTH2_TOKEN]" \
//      -H "Content-Type: application/json" \
//      "https://www.googleapis.com/storage/v1/b?project=[PROJECT_ID]"

http := TChilkatHttp.Create(Self);
http.AuthToken := sbToken.GetAsString();

http.SetUrlVar('project_id','chilkat-176611');
url := 'https://www.googleapis.com/storage/v1/b?project={$project_id}';
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpJson('POST',url,json.ControlInterface,'application/json',resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

responseCode := resp.StatusCode;
if (responseCode = 401) then
  begin
    Memo1.Lines.Add(resp.BodyStr);
    Memo1.Lines.Add('If invalid credentials, then it is likely the access token expired.');
    Memo1.Lines.Add('Your app should automatically fetch a new access token and re-try.');
    Exit;
  end;

Memo1.Lines.Add('Response code: ' + IntToStr(responseCode));
Memo1.Lines.Add('Response body');
Memo1.Lines.Add(resp.BodyStr);

// A successful response looks like this:
// Response code: 200
// Response body
// {
//  "kind": "storage#bucket",
//  "id": "chilkat-ocean",
//  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean",
//  "projectNumber": "933037264567",
//  "name": "chilkat-ocean",
//  "timeCreated": "2017-08-13T12:27:10.811Z",
//  "updated": "2017-08-13T12:27:10.811Z",
//  "metageneration": "1",
//  "location": "US",
//  "storageClass": "MULTI_REGIONAL",
//  "etag": "CAE="
// }
// 

// Parse the JSON response:
jsonResp := TChilkatJsonObject.Create(Self);
jsonResp.Load(resp.BodyStr);

Memo1.Lines.Add('name: ' + jsonResp.StringOf('name'));
Memo1.Lines.Add('timeCreated: ' + jsonResp.StringOf('timeCreated'));

// Parse the date/time created.
dt := TCkDateTime.Create(Self);
dt.SetFromTimestamp(jsonResp.StringOf('timeCreated'));
// ...
end;