Lazarus Pascal

List all Labels in the User's Mailbox

See more GMail REST API Examples

List all Labels in the GMail User's Mailbox Lazarus Pascal

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.StringBuilder,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  userId: string;
  url: string;
  sb: TStringBuilder;
  json: TJsonObject;

begin
  success := False;

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

  http := THttp.Create;
  http.AuthToken := 'GMAIL-ACCESS-TOKEN';

  userId := 'me';
  http.SetUrlVar('userId',userId);

  url := 'https://www.googleapis.com/gmail/v1/users/{$userId}/labels';

  http.SessionLogFilename := 'c:/temp/qa_output/sessionLog.txt';

  //  Get the list of GMail labels as JSON.
  sb := TStringBuilder.Create;
  success := http.QuickGetSb(url,sb);
  if (success <> True) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  json := TJsonObject.Create;
  json.LoadSb(sb);
  json.EmitCompact := False;
  WriteLn(json.Emit());

  if (http.LastStatus <> 200) then
    begin
      WriteLn('Failed.');
      Exit;
    end;


  http.Free;
  sb.Free;
  json.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.