Lazarus Pascal Requires Chilkat v11.0.0+

Example: Http.HttpSReq method

Demonstrates how to call the HttpSReq 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,
  Chilkat.HttpRequest,
  Chilkat.HttpResponse;

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

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

begin
  success := False;

  http := THttp.Create;
  req := THttpRequest.Create;
  resp := THttpResponse.Create;

  //  Specify the details of the HTTP request.
  req.HttpVerb := 'POST';
  req.ContentType := 'application/json';
  req.Path := '/echo_request_body.asp';

  requestBody := '{"greeting":"Hello World"}';
  req.LoadBodyFromString(requestBody,'utf-8');

  //  Send a POST to https://chilkatsoft.com/echo_request_body.asp with a JSON request body.
  success := http.HttpSReq('chilkatsoft.com',443,True,req,resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('Response Status Code: ' + resp.StatusCode);

  //  Examine the request we sent.
  //  The LastHeader property stores the HTTP request header of the most recent request sent,
  //  and in this instance, the response body mirrors the request body.
  WriteLn(http.LastHeader);
  WriteLn(resp.BodyStr);

  //  Output:

  //  POST /echo_request_body.asp HTTP/1.1
  //  Host: chilkatsoft.com
  //  Content-Type: application/json
  //  Content-Length: 26
  //  
  //  {"greeting":"Hello World"}


  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.