Pascal (Lazarus/Delphi)

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

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.HttpResponse,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  jsonToken: TJsonObject;
  json: TJsonObject;
  resp: THttpResponse;
  odataContext: string;
  id: string;
  name: string;
  color: string;
  changeKey: string;
  canShare: string;
  canViewPrivateItems: string;
  canEdit: string;
  ownerName: string;
  ownerAddress: string;

begin
  success := False;

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

  http := THttp.Create;

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

  jsonToken := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/msGraphCalendar.json');
  if (success = False) then
    begin
      WriteLn(jsonToken.LastErrorText);
      Exit;
    end;

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

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

  //  POST the JSON to https://graph.microsoft.com/v1.0/me/calendars
  resp := THttpResponse.Create;
  success := http.HttpJson('POST','https://graph.microsoft.com/v1.0/me/calendars',json,'application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

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

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

  WriteLn(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');

  WriteLn('Success.');


  http.Free;
  jsonToken.Free;
  json.Free;
  resp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.