(Delphi DLL) Delete a Task from a Task List

Demonstrates how to delete a Google task from a task list.

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, Http, FileAccess, HttpResponse;

...

procedure TForm1.Button1Click(Sender: TObject);
var
fac: HCkFileAccess;
accessToken: PWideChar;
http: HCkHttp;
resp: HCkHttpResponse;

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

// Get the previously obtained access token.
// See Get Google Tasks Access Token.

fac := CkFileAccess_Create();
accessToken := CkFileAccess__readEntireTextFile(fac,'qa_data/tokens/googleTasks.txt','utf-8');
if (CkFileAccess_getLastMethodSuccess(fac) <> True) then
  begin
    Memo1.Lines.Add(CkFileAccess__lastErrorText(fac));
    Exit;
  end;

http := CkHttp_Create();

CkHttp_putAuthToken(http,accessToken);

CkHttp_SetUrlVar(http,'tasklist','MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzow');
CkHttp_SetUrlVar(http,'task','MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzoxMTg0MzQxMTkzMjM2MDY1');

resp := CkHttp_QuickRequest(http,'DELETE','https://www.googleapis.com/tasks/v1/lists/{$tasklist}/tasks/{$task}');
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// Show the response body. (empty for success)
Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));

// Examine the response status code. (204 = success)
Memo1.Lines.Add('response status code: ' + IntToStr(CkHttpResponse_getStatusCode(resp)));

CkHttpResponse_Dispose(resp);

CkFileAccess_Dispose(fac);
CkHttp_Dispose(http);

end;