Pascal (Lazarus/Delphi)

Create Google Photos Album

See more Google Photos Examples

Demonstrates how to create a Google Photos album. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.HttpResponse,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  jsonToken: TJsonObject;
  http: THttp;
  json: TJsonObject;
  resp: THttpResponse;
  id: string;
  title: string;
  productUrl: string;
  isWriteable: Boolean;

begin
  success := False;

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

  //  Get the previously obtained access token.
  //  See Get Google Photos Access Token.

  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/googlePhotos.json');
  if (success = False) then
    begin
      WriteLn(jsonToken.LastErrorText);
      Exit;
    end;

  http := THttp.Create;

  http.AuthToken := jsonToken.StringOf('access_token');

  //  Create an album named "animals"
  json := TJsonObject.Create;
  json.UpdateString('album.title','animals');

  resp := THttpResponse.Create;
  success := http.HttpJson('POST','https://photoslibrary.googleapis.com/v1/albums',json,'application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  //  Show the response body.
  WriteLn(resp.BodyStr);

  //  Examine the response status code.  Success is indicated by a status code of 200.
  WriteLn('response status code: ' + resp.StatusCode);

  json.Load(resp.BodyStr);

  //  Sample response:

  //  {
  //    "id": "AKcbugHaQTvUKSi3M2RQxOhxhdEaLc5mfUcqFoIU_kpQaROyUD70BcFt7_mnz5PcwwsjPKeKnLHN",
  //    "title": "animals",
  //    "productUrl": "https://photos.google.com/lr/album/AKcbugHaQTvUKSi3M2RQxOhxhdEaLc5mfUcqFoIU_kpQaROyUD70BcFt7_mnz5PcwwsjPKeKnLHN",
  //    "isWriteable": true
  //  }

  //  Use this online tool to generate parsing code from sample JSON: 
  //  Generate Parsing Code from JSON

  id := json.StringOf('id');
  title := json.StringOf('title');
  productUrl := json.StringOf('productUrl');
  isWriteable := json.BoolOf('isWriteable');

  WriteLn('id = ' + id);


  jsonToken.Free;
  http.Free;
  json.Free;
  resp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.