Lazarus Pascal

Example: Http.HasRequestHeader method

Demonstrates the HasRequestHeader method. 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;

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

procedure RunDemo;
var
  http: THttp;
  b: Boolean;

begin
  http := THttp.Create;

  http.SetRequestHeader('X-CSRF-Token','Fetch');

  b := http.HasRequestHeader('X-CSRF-Token');
  if (b = True) then
    begin
      WriteLn('X-CSRF-Token: Yes');
    end
  else
    begin
      WriteLn('X-CSRF-Token: No');
    end;

  b := http.HasRequestHeader('X-Something');
  if (b = True) then
    begin
      WriteLn('X-Something: Yes');
    end
  else
    begin
      WriteLn('X-Something: No');
    end;

  //  The Accept and Accept-Encoding headers are default headers automatically added,
  //  unless the application chooses to remove by calling RemoveRequestHeader for each.
  b := http.HasRequestHeader('Accept');
  if (b = True) then
    begin
      WriteLn('Accept: Yes');
    end
  else
    begin
      WriteLn('Accept: No');
    end;

  //  Output:

  //  X-CSRF-Token: Yes
  //  X-Something: No
  //  Accept: Yes


  http.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.