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(MFC) Insert a New Google Calendar Event

See more Google Calendar Examples

Demonstrates how to insert a new Google Calendar event.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

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

void ChilkatSample(void)
    {
    CkString strOut;

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

    // This example uses a previously obtained access token having permission for the 
    // Google Calendar scope.

    // In this example, Get Google Calendar OAuth2 Access Token, the access
    // token was saved to a JSON file.  This example fetches the access token from the file..
    CkJsonObject jsonToken;
    bool success = jsonToken.LoadFile("qa_data/tokens/googleCalendar.json");
    if (jsonToken.HasMember("access_token") == false) {
        strOut.append("No access token found.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

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

    // Build a Google Calendar event:
    CkJsonObject json;
    json.put_EmitCompact(false);
    json.UpdateString("kind","calendar#event");
    json.UpdateString("summary","Eat Lou Malnati's Pizza");
    json.UpdateString("start.dateTime","2021-03-12T12:00:00-05:00");
    json.UpdateString("end.dateTime","2021-03-12T13:00:00-05:00");

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

    // This is the event JSON we'll be sending the HTTP POST:

    // {
    //   "kind": "calendar#event",
    //   "summary": "Eat Lou Malnati's Pizza",
    //   "start": {
    //     "dateTime": "2021-03-12T12:00:00-05:00"
    //   },
    //   "end": {
    //     "dateTime": "2021-03-12T13:00:00-05:00"
    //   }
    // }

    const char *url = "https://www.googleapis.com/calendar/v3/calendars/{$calendarId}/events";
    http.SetUrlVar("calendarId","primary");
    CkHttpResponse *resp = http.PostJson3(url,"application/json",json);
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkJsonObject jsonResp;
    jsonResp.put_EmitCompact(false);
    jsonResp.Load(resp->bodyStr());

    if (resp->get_StatusCode() == 200) {
        // Success.
        // The newly created event resource JSON is returned.
        strOut.append(jsonResp.emit());
        strOut.append("\r\n");
    }
    else {
        if (resp->get_StatusCode() == 401) {
            strOut.append("Try refreshing the access token and then retry...");
            strOut.append("\r\n");
        }

        // Failed. 
        // Show the JSON error response.
        strOut.append(jsonResp.emit());
        strOut.append("\r\n");
    }

    delete resp;

    // A successful response body:

    // {
    //   "kind": "calendar#event",
    //   "etag": "\"3004969011208000\"",
    //   "id": "v7kvmsvsoms3hjl5uq423jqhb0",
    //   "status": "confirmed",
    //   "htmlLink": "https://www.google.com/calendar/event?eid=djdrdm1zdnNvbXMzaGpsNXVxNDIzanFoYjAgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
    //   "created": "2017-08-11T20:48:25.000Z",
    //   "updated": "2017-08-11T20:48:25.604Z",
    //   "summary": "Eat Lou Malnati's Pizza",
    //   "creator": {
    //     "email": "support@chilkatcloud.com",
    //     "self": true
    //   },
    //   "organizer": {
    //     "email": "support@chilkatcloud.com",
    //     "self": true
    //   },
    //   "start": {
    //     "dateTime": "2017-08-12T12:00:00-05:00"
    //   },
    //   "end": {
    //     "dateTime": "2017-08-12T13:00:00-05:00"
    //   },
    //   "iCalUID": "v7kvmsvsoms3hjl5uq423jqhb0@google.com",
    //   "sequence": 0,
    //   "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.v7kvmsvsoms3hjl5uq423jqhb0",
    //   "reminders": {
    //     "useDefault": true
    //   }
    // }


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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