Pascal (Lazarus/Delphi)

MercadoLibre - GET Request with Authorization Bearer Access Token

See more MercadoLibre Examples

Demonstrates how to send an HTTPS GET request to MercadoLibre with an "Authorization: Bearer $ACCESS_TOKEN" header. 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.JsonObject,
  Chilkat.Http;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  jsonToken: TJsonObject;
  responseStr: string;

begin
  success := False;

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

  http := THttp.Create;

  //  First get our previously obtained OAuth2 access token.
  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/mercadolibre.json');
  if (success = False) then
    begin
      WriteLn('Failed to load JSON access token.');
      Exit;
    end;

  //  This adds the "Authorization: Bearer $ACCESS_TOKEN" header field.
  http.AuthToken := jsonToken.StringOf('access_token');

  //  Use your seller ID.
  http.SetUrlVar('SELLER_ID','577815702');

  responseStr := http.QuickGetStr('https://api.mercadolibre.com/questions/search?seller_id={$SELLER_ID}&api_version=4');
  if (http.LastMethodSuccess = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn(responseStr);


  http.Free;
  jsonToken.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.