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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
jsonToken: HCkJsonObject;
success: Boolean;
resp: HCkHttpResponse;
json: HCkJsonObject;
id: PWideChar;
name: PWideChar;
color: PWideChar;
hexColor: PWideChar;
isDefaultCalendar: Boolean;
changeKey: PWideChar;
canShare: Boolean;
canViewPrivateItems: Boolean;
canEdit: Boolean;
defaultOnlineMeetingProvider: PWideChar;
isTallyingResponses: Boolean;
isRemovable: Boolean;
ownerName: PWideChar;
ownerAddress: PWideChar;
j: Integer;
count_j: Integer;
strVal: PWideChar;
odata_context: PWideChar;
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 := CkHttp_Create();

// Use your previously obtained access token here: Get Outlook Calendar OAuth2 Access Token (Azure AD v2.0 Endpoint).

jsonToken := CkJsonObject_Create();
success := CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/outlookCalendar.json');
if (success = False) then
  begin
    Memo1.Lines.Add(CkJsonObject__lastErrorText(jsonToken));
    Exit;
  end;
CkHttp_putAuthToken(http,CkJsonObject__stringOf(jsonToken,'access_token'));

resp := CkHttp_QuickRequest(http,'GET','https://graph.microsoft.com/v1.0/me/calendars');
if (CkHttp_getLastMethodSuccess(http) <> True) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;
Memo1.Lines.Add('Response status code = ' + IntToStr(CkHttpResponse_getStatusCode(resp)));

// The HTTP request succeeded if the response status code = 200.
if (CkHttpResponse_getStatusCode(resp) <> 200) then
  begin
    Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));
    Memo1.Lines.Add('Failed');
    CkHttpResponse_Dispose(resp);
    Exit;
  end;

json := CkJsonObject_Create();
CkJsonObject_Load(json,CkHttpResponse__bodyStr(resp));
CkJsonObject_putEmitCompact(json,False);
Memo1.Lines.Add(CkJsonObject__emit(json));

// 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"
//             }
//         }
//     ]
// }

CkHttpResponse_Dispose(resp);

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

    i := i + 1;
  end;

CkHttp_Dispose(http);
CkJsonObject_Dispose(jsonToken);
CkJsonObject_Dispose(json);

end;