Pascal (Lazarus/Delphi)

Outlook Calendar List Events

See more Outlook Calendar Examples

Retrieve a list of events in a calendar. 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;
  calendarId: string;
  resp: THttpResponse;
  json: TJsonObject;
  originalStartTimeZone: string;
  originalEndTimeZone: string;
  responseStatusResponse: string;
  responseStatusTime: string;
  iCalUId: string;
  reminderMinutesBeforeStart: Integer;
  isReminderOn: Boolean;
  i: Integer;
  count_i: Integer;

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 here: Get Outlook Calendar OAuth2 Access Token (Azure AD v2.0 Endpoint).

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

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

  //  Specify the ID of the calendar to list.
  calendarId := 'AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAAAiCsAAAA';

  http.SetUrlVar('id',calendarId);

  //  To list the events in the default calendar, use the following URL: https://graph.microsoft.com/v1.0/me/calendars/events

  resp := THttpResponse.Create;
  success := http.HttpNoBody('GET','https://graph.microsoft.com/v1.0/me/calendars/{$id}/events',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn('Response status code = ' + resp.StatusCode);

  //  The HTTP request succeeded if the response status code = 200.
  if (resp.StatusCode <> 200) then
    begin
      WriteLn(resp.BodyStr);
      WriteLn('Failed');
      Exit;
    end;

  json := TJsonObject.Create;
  json.Load(resp.BodyStr);
  json.EmitCompact := False;
  WriteLn(json.Emit());

  //  Here is a sample response:

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

  //  {
  //    "value": [
  //      {
  //        "originalStartTimeZone": "originalStartTimeZone-value",
  //        "originalEndTimeZone": "originalEndTimeZone-value",
  //        "responseStatus": {
  //          "response": "",
  //          "time": "datetime-value"
  //        },
  //        "iCalUId": "iCalUId-value",
  //        "reminderMinutesBeforeStart": 99,
  //        "isReminderOn": true
  //      }
  //    ]
  //  }

  i := 0;
  count_i := json.SizeOfArray('value');
  while i < count_i do
    begin
      json.I := i;
      originalStartTimeZone := json.StringOf('value[i].originalStartTimeZone');
      originalEndTimeZone := json.StringOf('value[i].originalEndTimeZone');
      responseStatusResponse := json.StringOf('value[i].responseStatus.response');
      responseStatusTime := json.StringOf('value[i].responseStatus.time');
      iCalUId := json.StringOf('value[i].iCalUId');
      reminderMinutesBeforeStart := json.IntOf('value[i].reminderMinutesBeforeStart');
      isReminderOn := json.BoolOf('value[i].isReminderOn');
      i := i + 1;
    end;



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