(MFC) MS Graph Calendars List

Get all the user's calendars (/calendars navigation property), get the calendars from the default calendar group or from a specific calendar group.

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

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttp http;

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

    CkJsonObject jsonToken;
    bool success = jsonToken.LoadFile("qa_data/tokens/msGraphCalendar.json");
    if (success == false) {
        strOut.append(jsonToken.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    http.put_AuthToken(jsonToken.stringOf("access_token"));

    // Send a GET request to https://graph.microsoft.com/v1.0/me/calendars
    const char *strResponse = http.quickGetStr("https://graph.microsoft.com/v1.0/me/calendars");
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkJsonObject json;
    json.Load(strResponse);
    json.put_EmitCompact(false);

    if (http.get_LastStatus() != 200) {
        strOut.append(json.emit());
        strOut.append("\r\n");
        strOut.append("Failed, response status code = ");
        strOut.appendInt(http.get_LastStatus());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append(json.emit());
    strOut.append("\r\n");

    // Sample output:

    // {
    //   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars",
    //   "value": [
    //     {
    //       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAAAiCsAAAA",
    //       "name": "Calendar",
    //       "color": "auto",
    //       "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAAAAAiEQ==",
    //       "canShare": true,
    //       "canViewPrivateItems": true,
    //       "canEdit": true,
    //       "owner": {
    //         "name": "...",
    //         "address": "outlook_3A33FCEB9B74CC15@outlook.com"
    //       }
    //     },
    //     {
    //       "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA==",
    //       "name": "Work",
    //       "color": "auto",
    //       "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAClHjDcA==",
    //       "canShare": true,
    //       "canViewPrivateItems": true,
    //       "canEdit": true,
    //       "owner": {
    //         "name": "...",
    //         "address": "outlook_3A33FCEB9B74CC15@outlook.com"
    //       }
    //     }
    //   ]
    // }
    // 
    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    const char *odataContext = 0;
    int i;
    int count_i;
    const char *id = 0;
    const char *name = 0;
    const char *color = 0;
    const char *changeKey = 0;
    bool canShare;
    bool canViewPrivateItems;
    bool canEdit;
    const char *ownerName = 0;
    const char *ownerAddress = 0;

    odataContext = json.stringOf("\"@odata.context\"");
    i = 0;
    count_i = json.SizeOfArray("value");
    while (i < count_i) {
        json.put_I(i);
        id = json.stringOf("value[i].id");
        name = json.stringOf("value[i].name");
        color = json.stringOf("value[i].color");
        changeKey = json.stringOf("value[i].changeKey");
        canShare = json.BoolOf("value[i].canShare");
        canViewPrivateItems = json.BoolOf("value[i].canViewPrivateItems");
        canEdit = json.BoolOf("value[i].canEdit");
        ownerName = json.stringOf("value[i].owner.name");
        ownerAddress = json.stringOf("value[i].owner.address");
        i = i + 1;
    }

    strOut.append("Success.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }