Pascal (Lazarus/Delphi)

Twitter OAuth -- Tweet to Your Own Account

See more HTTP Examples

Demonstrates how to send a tweet (status update) to your own Twitter account using pre-known credentials, which includes:

1. Consumer Key
2. Consumer Secret
3. Access Token
4. Token Secret

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.HttpRequest,
  Chilkat.HttpResponse;

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

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  req: THttpRequest;
  resp: THttpResponse;

begin
  success := False;

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

  http := THttp.Create;

  http.OAuth1 := True;
  http.OAuthVerifier := '';
  http.OAuthConsumerKey := 'my-consumer-key';
  http.OAuthConsumerSecret := 'my-consumer-secret';
  http.OAuthToken := 'my-access-token';
  http.OAuthTokenSecret := 'my-token-secret';

  //  Send the same status update as shown in this example:
  //  https://dev.twitter.com/docs/api/1.1/post/statuses/update

  //  IMPORTANT: Make sure this app has read/write access.  
  //  Otherwise it cannot post an update (i.e. tweet) to the Twitter account.

  req := THttpRequest.Create;
  req.AddParam('status','Maybe he''ll finally find his keys. #peterfalk');

  req.HttpVerb := 'POST';
  req.ContentType := 'application/x-www-form-urlencoded';

  resp := THttpResponse.Create;
  success := http.HttpReq('https://api.twitter.com/1.1/statuses/update.json',req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  if (resp.StatusCode = 200) then
    begin
      //  Display the JSON response.
      WriteLn(resp.BodyStr);
    end
  else
    begin
      WriteLn(http.LastErrorText);
    end;


  http.Free;
  req.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.