Delphi DLL

Outlook Calendar List Calendars

See more Outlook Calendar Examples

Get all the user's calendars. Delphi 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
success: Boolean;
http: HCkHttp;
jsonToken: HCkJsonObject;
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
success := False;

// 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 := CkHttpResponse_Create();
success := CkHttp_HttpNoBody(http,'GET','https://graph.microsoft.com/v1.0/me/calendars',resp);
if (success = False) 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');
    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"
//             }
//         }
//     ]
// }

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);
CkHttpResponse_Dispose(resp);
CkJsonObject_Dispose(json);

end;