(Delphi ActiveX) Outlook Calendar List Calendars

See more Outlook Calendar Examples

Get all the user's calendars.

For more information, see https://docs.microsoft.com/en-us/graph/api/user-list-calendars?view=graph-rest-1.0&tabs=http

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
http: TChilkatHttp;
jsonToken: TChilkatJsonObject;
success: Integer;
resp: IChilkatHttpResponse;
json: TChilkatJsonObject;
id: WideString;
name: WideString;
color: WideString;
hexColor: WideString;
isDefaultCalendar: Integer;
changeKey: WideString;
canShare: Integer;
canViewPrivateItems: Integer;
canEdit: Integer;
defaultOnlineMeetingProvider: WideString;
isTallyingResponses: Integer;
isRemovable: Integer;
ownerName: WideString;
ownerAddress: WideString;
j: Integer;
count_j: Integer;
strVal: WideString;
odata_context: WideString;
i: Integer;
count_i: Integer;

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

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

resp := http.QuickRequest('GET','https://graph.microsoft.com/v1.0/me/calendars');
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));

// The HTTP request succeeded if the response status code = 200.
if (resp.StatusCode <> 200) then
  begin
    Memo1.Lines.Add(resp.BodyStr);
    Memo1.Lines.Add('Failed');

    Exit;
  end;

json := TChilkatJsonObject.Create(Self);
json.Load(resp.BodyStr);
json.EmitCompact := 0;
Memo1.Lines.Add(json.Emit());

// Here is a sample response:

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

// {
//     "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#me/calendars",
//     "value": [
//         {
//             "@odata.id": "https://graph.microsoft.com/v1.0/users('ddfcd489-628b-40d7-b48b-57002df800e5@1717622f-1d94-4d0c-9d74-709fad664b77')/calendars('AAMkAGI2TGuLAAA=')",
//             "id": "AAMkAGI2TGuLAAA=",
//             "name": "Calendar",
//             "color": "auto",
//             "changeKey": "nfZyf7VcrEKLNoU37KWlkQAAA0x0+w==",
//             "canShare":true,
//             "canViewPrivateItems":true,
//             "hexColor": "",
//             "canEdit":true,
//             "allowedOnlineMeetingProviders": [
//                 "teamsForBusiness"
//             ],
//             "defaultOnlineMeetingProvider": "teamsForBusiness",
//             "isTallyingResponses": true,
//             "isRemovable": false,
//             "owner":{
//                 "name":"Samantha Booth",
//                 "address":"samanthab@adatum.onmicrosoft.com"
//             }
//         }
//     ]
// }

odata_context := json.StringOf('"@odata.context"');
i := 0;
count_i := json.SizeOfArray('value');
while i < count_i do
  begin
    json.I := i;
    id := json.StringOf('value[i].id');
    name := json.StringOf('value[i].name');
    color := json.StringOf('value[i].color');
    hexColor := json.StringOf('value[i].hexColor');
    isDefaultCalendar := json.BoolOf('value[i].isDefaultCalendar');
    changeKey := json.StringOf('value[i].changeKey');
    canShare := json.BoolOf('value[i].canShare');
    canViewPrivateItems := json.BoolOf('value[i].canViewPrivateItems');
    canEdit := json.BoolOf('value[i].canEdit');
    defaultOnlineMeetingProvider := json.StringOf('value[i].defaultOnlineMeetingProvider');
    isTallyingResponses := json.BoolOf('value[i].isTallyingResponses');
    isRemovable := json.BoolOf('value[i].isRemovable');
    ownerName := json.StringOf('value[i].owner.name');
    ownerAddress := json.StringOf('value[i].owner.address');
    j := 0;
    count_j := json.SizeOfArray('value[i].allowedOnlineMeetingProviders');
    while j < count_j do
      begin
        json.J := j;
        strVal := json.StringOf('value[i].allowedOnlineMeetingProviders[j]');
        j := j + 1;
      end;

    i := i + 1;
  end;
end;