(Delphi DLL) Move a GMail Message to Trash

Moves a specific GMail email message to trash.

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, HttpResponse, Http;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
id: PWideChar;
userId: PWideChar;
url: PWideChar;
resp: HCkHttpResponse;

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

http := CkHttp_Create();
CkHttp_putAuthToken(http,'GMAIL-ACCESS-TOKEN');

// The id of the GMail message to move to Trash.
id := '16678c485e7f0a0c';
userId := 'me';

CkHttp_SetUrlVar(http,'userId','me');
CkHttp_SetUrlVar(http,'id',id);

// Move to trash by POSTing w/ an empty request body.
url := 'https://www.googleapis.com/gmail/v1/users/{$userId}/messages/{$id}/trash';
resp := CkHttp_PText(http,'POST',url,'','','',False,False);
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

Memo1.Lines.Add('status = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));

// A 200 response status indicate success.
if (CkHttpResponse_getStatusCode(resp) <> 200) then
  begin
    Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));
    Memo1.Lines.Add('Failed.');
    CkHttpResponse_Dispose(resp);
    Exit;
  end;

// A successful repsonse contains JSON that looks like this:

// {
//  "id": "16678c485e7f0a0c",
//  "threadId": "16678c485e7f0a0c",
//  "labelIds": [
//   "TRASH",
//   "CATEGORY_SOCIAL"
//  ]
// }

Memo1.Lines.Add('response body:');
Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));

CkHttpResponse_Dispose(resp);

Memo1.Lines.Add('Message moved to trash!');

CkHttp_Dispose(http);

end;