(C) 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++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkJsonObject jsonToken;
    BOOL success;
    HCkHttp http;
    HCkJsonObject json;
    const char *url;
    HCkHttpResponse resp;
    HCkJsonObject jsonResp;

    // 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..
    jsonToken = CkJsonObject_Create();
    success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/googleCalendar.json");
    if (CkJsonObject_HasMember(jsonToken,"access_token") == FALSE) {
        printf("No access token found.\n");
        CkJsonObject_Dispose(jsonToken);
        return;
    }

    http = CkHttp_Create();
    CkHttp_putAuthToken(http,CkJsonObject_stringOf(jsonToken,"access_token"));

    // Build a Google Calendar event:
    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);
    CkJsonObject_UpdateString(json,"kind","calendar#event");
    CkJsonObject_UpdateString(json,"summary","Eat Lou Malnati's Pizza");
    CkJsonObject_UpdateString(json,"start.dateTime","2021-03-12T12:00:00-05:00");
    CkJsonObject_UpdateString(json,"end.dateTime","2021-03-12T13:00:00-05:00");

    printf("%s\n",CkJsonObject_emit(json));

    // 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"
    //   }
    // }

    url = "https://www.googleapis.com/calendar/v3/calendars/{$calendarId}/events";
    CkHttp_SetUrlVar(http,"calendarId","primary");
    resp = CkHttp_PostJson3(http,url,"application/json",json);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        return;
    }

    jsonResp = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(jsonResp,FALSE);
    CkJsonObject_Load(jsonResp,CkHttpResponse_bodyStr(resp));

    if (CkHttpResponse_getStatusCode(resp) == 200) {
        // Success.
        // The newly created event resource JSON is returned.
        printf("%s\n",CkJsonObject_emit(jsonResp));
    }
    else {
        if (CkHttpResponse_getStatusCode(resp) == 401) {
            printf("Try refreshing the access token and then retry...\n");
        }

        // Failed. 
        // Show the JSON error response.
        printf("%s\n",CkJsonObject_emit(jsonResp));
    }

    CkHttpResponse_Dispose(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
    //   }
    // }


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

    }