Delphi ActiveX

MS Graph Create Calendar

See more Microsoft Calendar Examples

Creates a new calendar.

For more details, see https://docs.microsoft.com/en-us/graph/api/user-post-calendars?view=graph-rest-1.0

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;
jsonToken: TChilkatJsonObject;
json: TChilkatJsonObject;
resp: TChilkatHttpResponse;
odataContext: WideString;
id: WideString;
name: WideString;
color: WideString;
changeKey: WideString;
canShare: WideString;
canViewPrivateItems: WideString;
canEdit: WideString;
ownerName: WideString;
ownerAddress: WideString;

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);

// Use your previously obtained access token as shown here:
//    Get Microsoft Graph OAuth2 Access Token with Calendars.ReadWrite scope.

jsonToken := TChilkatJsonObject.Create(Self);
success := jsonToken.LoadFile('qa_data/tokens/msGraphCalendar.json');
if (success = 0) then
  begin
    Memo1.Lines.Add(jsonToken.LastErrorText);
    Exit;
  end;

http.AuthToken := jsonToken.StringOf('access_token');

// Create a JSON body for the HTTP POST
// {
//   "name": "Work"
// }
json := TChilkatJsonObject.Create(Self);
json.UpdateString('name','Work');

// POST the JSON to https://graph.microsoft.com/v1.0/me/calendars
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpJson('POST','https://graph.microsoft.com/v1.0/me/calendars',json.ControlInterface,'application/json',resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

json.Load(resp.BodyStr);
json.EmitCompact := 0;

if (resp.StatusCode <> 201) then
  begin
    Memo1.Lines.Add(json.Emit());
    Memo1.Lines.Add('Failed, response status code = ' + IntToStr(resp.StatusCode));
    Exit;
  end;

Memo1.Lines.Add(json.Emit());

// A sample response:
// {
//   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars/$entity",
//   "id": "AQMkAD...TgAAAA==",
//   "name": "Work",
//   "color": "auto",
//   "changeKey": "5+vF7T...HjDcA==",
//   "canShare": true,
//   "canViewPrivateItems": true,
//   "canEdit": true,
//   "owner": {
//     "name": "...",
//     "address": "outlook_3A33...4CC15@outlook.com"
//   }
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

odataContext := json.StringOf('"@odata.context"');
id := json.StringOf('id');
name := json.StringOf('name');
color := json.StringOf('color');
changeKey := json.StringOf('changeKey');
canShare := json.BoolOf('canShare');
canViewPrivateItems := json.BoolOf('canViewPrivateItems');
canEdit := json.BoolOf('canEdit');
ownerName := json.StringOf('owner.name');
ownerAddress := json.StringOf('owner.address');

Memo1.Lines.Add('Success.');
end;