Delphi ActiveX

Create a New GMail Label

See more GMail REST API Examples

Demonstrates how to create a new GMail label. Delphi ActiveX

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
userId: WideString;
json: TChilkatJsonObject;
url: WideString;
resp: TChilkatHttpResponse;

begin
success := 0;

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

http := TChilkatHttp.Create(Self);
http.AuthToken := 'GMAIL-ACCESS-TOKEN';

userId := 'me';
http.SetUrlVar('userId',userId);

// Create the JSON to be sent in the HTTP request body.
// The name of the new label is "questions".
json := TChilkatJsonObject.Create(Self);
json.UpdateString('name','questions');
json.UpdateString('labelListVisibility','labelShow');
json.UpdateString('messageListVisibility','show');

json.EmitCompact := 0;
Memo1.Lines.Add(json.Emit());

// The JSON contains this:
// {
//   "name": "questions",
//   "labelListVisibility": "labelShow",
//   "messageListVisibility": "show"
// }

url := 'https://www.googleapis.com/gmail/v1/users/{$userId}/labels';
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpJson('POST',url,json.ControlInterface,'application/json',resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

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

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

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

// {
//  "id": "Label_43",
//  "name": "questions",
//  "messageListVisibility": "show",
//  "labelListVisibility": "labelShow"
// }

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

Memo1.Lines.Add('GMail label created!');
end;