C++ Google Calendar: Change the Color of an Event

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Changes the color of a particular event. The calendar and event are specified by ID. This example changes the color for an event (id = 52e7uk7j7vl5dosj7b25memov0) on the calendar (id = support@chilkatcloud.com).
This changes the event to colorId = "6" which seems to be an orange-ish color..

Documentation: https://developers.google.com/google-apps/calendar/v3/reference/events/patch

#include <CkRest.h>
#include <CkOAuth2.h>
#include <CkJsonObject.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    CkRest rest;
    bool success;

    //   Provide a previously obtained OAuth2 access token.
    CkOAuth2 oauth2;
    oauth2.put_AccessToken("OAUTH2_ACCESS_TOKEN");
    rest.SetAuthOAuth2(oauth2);

    success = rest.Connect("www.googleapis.com",443,true,true);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    //  The following code creates the JSON request body.
    //  The JSON created by this code is shown below.
    CkJsonObject jsonReq;
    jsonReq.UpdateString("colorId","6");

    CkStringBuilder sbReq;
    jsonReq.EmitSb(sbReq);

    rest.AddHeader("Content-Type","application/json");

    CkStringBuilder sbJson;
    success = rest.FullRequestSb("PATCH","/calendar/v3/calendars/support@chilkatcloud.com/events/52e7uk7j7vl5dosj7b25memov0",sbReq,sbJson);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    if (rest.get_ResponseStatusCode() != 200) {
        std::cout << "Received error response code: " << rest.get_ResponseStatusCode() << "\r\n";
        std::cout << "Response body:" << "\r\n";
        std::cout << sbJson.getAsString() << "\r\n";
        return;
    }

    CkJsonObject json;
    json.LoadSb(sbJson);

    //  The following code parses the JSON response.
    //  A sample JSON response is shown below the sample code.
    const char *kind = 0;
    const char *etag = 0;
    const char *id = 0;
    const char *status = 0;
    const char *htmlLink = 0;
    const char *created = 0;
    const char *updated = 0;
    const char *summary = 0;
    const char *colorId = 0;
    const char *creatorEmail = 0;
    bool creatorSelf;
    const char *organizerEmail = 0;
    bool organizerSelf;
    const char *startDateTime = 0;
    const char *endDateTime = 0;
    const char *iCalUID = 0;
    int sequence;
    const char *hangoutLink = 0;
    bool remindersUseDefault;

    kind = json.stringOf("kind");
    etag = json.stringOf("etag");
    id = json.stringOf("id");
    status = json.stringOf("status");
    htmlLink = json.stringOf("htmlLink");
    created = json.stringOf("created");
    updated = json.stringOf("updated");
    summary = json.stringOf("summary");
    colorId = json.stringOf("colorId");
    creatorEmail = json.stringOf("creator.email");
    creatorSelf = json.BoolOf("creator.self");
    organizerEmail = json.stringOf("organizer.email");
    organizerSelf = json.BoolOf("organizer.self");
    startDateTime = json.stringOf("start.dateTime");
    endDateTime = json.stringOf("end.dateTime");
    iCalUID = json.stringOf("iCalUID");
    sequence = json.IntOf("sequence");
    hangoutLink = json.stringOf("hangoutLink");
    remindersUseDefault = json.BoolOf("reminders.useDefault");

    std::cout << "Example Completed." << "\r\n";
    }

Sample JSON Request Body

{
    "colorId": "6"
}

Sample JSON Response Body

{
  "kind": "calendar#event",
  "etag": "\"3021538600038000\"",
  "id": "52e7uk7j7vl5dosj7b25memov0",
  "status": "confirmed",
  "htmlLink": "https://www.google.com/calendar/event?eid=NTJlN3VrN2o3dmw1ZG9zajdiMjVtZW1vdjAgc3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t",
  "created": "2017-11-08T21:27:50.000Z",
  "updated": "2017-11-15T18:08:20.019Z",
  "summary": "Dentist Appointment",
  "colorId": "6",
  "creator": {
    "email": "support@chilkatcloud.com",
    "self": true
  },
  "organizer": {
    "email": "support@chilkatcloud.com",
    "self": true
  },
  "start": {
    "dateTime": "2017-11-27T10:30:00-06:00"
  },
  "end": {
    "dateTime": "2017-11-27T11:30:00-06:00"
  },
  "iCalUID": "52e7uk7j7vl5dosj7b25memov0@google.com",
  "sequence": 1,
  "hangoutLink": "https://plus.google.com/hangouts/_/chilkatcloud.com/support?hceid=c3VwcG9ydEBjaGlsa2F0Y2xvdWQuY29t.52e7uk7j7vl5dosj7b25memov0",
  "reminders": {
    "useDefault": true
  }
}