(Delphi DLL) Get Populi Access Key (Token)

Demonstrates how to authenticate and obtain an access key using a username and password.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Rest, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
rest: HCkRest;
bAutoReconnect: Boolean;
success: Boolean;
responseBody: PWideChar;
xml: HCkXml;

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

rest := CkRest_Create();

// Connect using TLS.
// A single REST object, once connected, can be used for many Populi REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
bAutoReconnect := True;
success := CkRest_Connect(rest,'yourcollege.populi.co',443,True,bAutoReconnect);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

CkRest_AddQueryParam(rest,'username','POPULI_USERNAME');
CkRest_AddQueryParam(rest,'password','POPULI_PASSWORD');

responseBody := CkRest__fullRequestFormUrlEncoded(rest,'POST','/api/index.php');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// We should expect a 200 response if successful.
if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    Memo1.Lines.Add('Request Header: ');
    Memo1.Lines.Add(CkRest__lastRequestHeader(rest));
    Memo1.Lines.Add('----');
    Memo1.Lines.Add('Response StatusCode = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('Response StatusLine: ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkRest__responseHeader(rest));
    Memo1.Lines.Add('Response Body:');
    Memo1.Lines.Add(responseBody);
    Exit;
  end;

xml := CkXml_Create();
CkXml_LoadXml(xml,responseBody);
Memo1.Lines.Add(CkXml__getXml(xml));

// Sample response:
// <?xml version="1.0" encoding="ISO-8859-1"?>
// <response>
// <access_key>63481e36023b5d ... 76d0dbc314</access_key>
//     <accountid>19999999</accountid>
//     <accounttype>PERSON</accounttype>
// </response>

// Save the XML to a file for subsequent requests..
CkXml_SaveXml(xml,'qa_data/tokens/populi_token.xml');

CkRest_Dispose(rest);
CkXml_Dispose(xml);

end;