Sample code for 30+ languages & platforms
Node.js

MS Graph Calendar Create Event

See more Microsoft Calendar Examples

Creates a new event in a specified calendar.

For more details, see https://docs.microsoft.com/en-us/graph/api/calendar-post-events?view=graph-rest-1.0

Chilkat Node.js Downloads

Node.js
NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var http = new chilkat.Http();

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

    var jsonToken = new chilkat.JsonObject();
    success = jsonToken.LoadFile("qa_data/tokens/msGraphCalendar.json");
    if (success == false) {
        console.log(jsonToken.LastErrorText);
        return;
    }

    http.AuthToken = jsonToken.StringOf("access_token");

    //  Create a JSON body for the HTTP POST
    //  Use this online tool to generate the code from sample JSON: 
    //  Generate Code to Create JSON

    //  {
    //    "subject": "Let's go for lunch",
    //    "body": {
    //      "contentType": "HTML",
    //      "content": "Does mid month work for you?"
    //    },
    //    "start": {
    //        "dateTime": "2019-11-15T12:00:00",
    //        "timeZone": "Pacific Standard Time"
    //    },
    //    "end": {
    //        "dateTime": "2019-11-15T14:00:00",
    //        "timeZone": "Pacific Standard Time"
    //    },
    //    "location":{
    //        "displayName":"Harry's Bar"
    //    },
    //    "attendees": [
    //      {
    //        "emailAddress": {
    //          "address":"adelev@contoso.onmicrosoft.com",
    //          "name": "Adele Vance"
    //        },
    //        "type": "required"
    //      }
    //    ]
    //  }

    var json = new chilkat.JsonObject();
    json.UpdateString("subject","Let's go for lunch");
    json.UpdateString("body.contentType","HTML");
    json.UpdateString("body.content","Does mid month work for you?");
    json.UpdateString("start.dateTime","2019-11-15T12:00:00");
    json.UpdateString("start.timeZone","Pacific Standard Time");
    json.UpdateString("end.dateTime","2019-11-15T14:00:00");
    json.UpdateString("end.timeZone","Pacific Standard Time");
    json.UpdateString("location.displayName","Harry's Bar");
    json.UpdateString("attendees[0].emailAddress.address","adelev@contoso.onmicrosoft.com");
    json.UpdateString("attendees[0].emailAddress.name","Adele Vance");
    json.UpdateString("attendees[0].type","required");

    //  POST the JSON to https://graph.microsoft.com/v1.0/me/calendars/{id}/events
    //  This is posting to a calendar in the default calendarGroup.

    //  Specify the calendar id
    http.SetUrlVar("id","AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA==");
    var resp = new chilkat.HttpResponse();
    success = http.HttpJson("POST","https://graph.microsoft.com/v1.0/me/calendars/{$id}/events",json,"application/json",resp);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    json.Load(resp.BodyStr);
    json.EmitCompact = false;

    if (resp.StatusCode !== 201) {
        console.log(json.Emit());
        console.log("Failed, response status code = " + resp.StatusCode);
        return;
    }

    console.log(json.Emit());

    //  A sample response:
    //  (See code for parsing this response below..)

    //  {
    //    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars('AQMkADAwATM0MDAAMS ... AClEpRTgAAAA%3D%3D')/events/$entity",
    //    "@odata.etag": "W/\"5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==\"",
    //    "id": "AQMkADAwAT ... ApRZ7JkAAAA=",
    //    "createdDateTime": "2019-04-26T14:31:39.8791929Z",
    //    "lastModifiedDateTime": "2019-04-26T14:31:41.2753537Z",
    //    "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==",
    //    "categories": [
    //    ],
    //    "originalStartTimeZone": "Pacific Standard Time",
    //    "originalEndTimeZone": "Pacific Standard Time",
    //    "iCalUId": "040000008200E00074C5B7101A82E00800000000F05DF1C23CFCD40100000000000000001000000009911D155F71EF42A230FEBFE5F7486A",
    //    "reminderMinutesBeforeStart": 15,
    //    "isReminderOn": true,
    //    "hasAttachments": false,
    //    "subject": "Let's go for lunch",
    //    "bodyPreview": "Does mid month work for you?",
    //    "importance": "normal",
    //    "sensitivity": "normal",
    //    "isAllDay": false,
    //    "isCancelled": false,
    //    "isOrganizer": true,
    //    "responseRequested": true,
    //    "seriesMasterId": null,
    //    "showAs": "busy",
    //    "type": "singleInstance",
    //    "webLink": "https://outlook.live.com/owa/?itemid=AQMkADAwATM0MDAAMS1iNTcwL...pRZ7JkAAAA%3D&exvsurl=1&path=/calendar/item",
    //    "onlineMeetingUrl": null,
    //    "recurrence": null,
    //    "responseStatus": {
    //      "response": "organizer",
    //      "time": "0001-01-01T00:00:00Z"
    //    },
    //    "body": {
    //      "contentType": "html",
    //      "content": "<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n</head>\r\n<body>\r\nDoes mid month work for you?\r\n</body>\r\n</html>\r\n"
    //    },
    //    "start": {
    //      "dateTime": "2019-11-15T12:00:00.0000000",
    //      "timeZone": "Pacific Standard Time"
    //    },
    //    "end": {
    //      "dateTime": "2019-11-15T14:00:00.0000000",
    //      "timeZone": "Pacific Standard Time"
    //    },
    //    "location": {
    //      "displayName": "Harry's Bar",
    //      "locationType": "default",
    //      "uniqueId": "Harry's Bar",
    //      "uniqueIdType": "private"
    //    },
    //    "locations": [
    //      {
    //        "displayName": "Harry's Bar",
    //        "locationType": "default",
    //        "uniqueId": "Harry's Bar",
    //        "uniqueIdType": "private"
    //      }
    //    ],
    //    "attendees": [
    //      {
    //        "type": "required",
    //        "status": {
    //          "response": "none",
    //          "time": "0001-01-01T00:00:00Z"
    //        },
    //        "emailAddress": {
    //          "name": "Adele Vance",
    //          "address": "adelev@contoso.onmicrosoft.com"
    //        }
    //      }
    //    ],
    //    "organizer": {
    //      "emailAddress": {
    //        "name": "Matt",
    //        "address": "outlook_3A33FCEB9B74CC15@outlook.com"
    //      }
    //    }
    //  }
    //  
    //  

    //  Use this online tool to generate parsing code from sample JSON: 
    //  Generate Parsing Code from JSON

    var displayName;
    var locationType;
    var uniqueId;
    var uniqueIdType;
    var statusResponse;
    var statusTime;
    var emailAddressName;
    var emailAddressAddress;

    var odataContext = json.StringOf("\"@odata.context\"");
    var odataEtag = json.StringOf("\"@odata.etag\"");
    var id = json.StringOf("id");
    var createdDateTime = json.StringOf("createdDateTime");
    var lastModifiedDateTime = json.StringOf("lastModifiedDateTime");
    var changeKey = json.StringOf("changeKey");
    var originalStartTimeZone = json.StringOf("originalStartTimeZone");
    var originalEndTimeZone = json.StringOf("originalEndTimeZone");
    var iCalUId = json.StringOf("iCalUId");
    var reminderMinutesBeforeStart = json.IntOf("reminderMinutesBeforeStart");
    var isReminderOn = json.BoolOf("isReminderOn");
    var hasAttachments = json.BoolOf("hasAttachments");
    var subject = json.StringOf("subject");
    var bodyPreview = json.StringOf("bodyPreview");
    var importance = json.StringOf("importance");
    var sensitivity = json.StringOf("sensitivity");
    var isAllDay = json.BoolOf("isAllDay");
    var isCancelled = json.BoolOf("isCancelled");
    var isOrganizer = json.BoolOf("isOrganizer");
    var responseRequested = json.BoolOf("responseRequested");
    var seriesMasterId = json.StringOf("seriesMasterId");
    var showAs = json.StringOf("showAs");
    var type = json.StringOf("type");
    var webLink = json.StringOf("webLink");
    var onlineMeetingUrl = json.StringOf("onlineMeetingUrl");
    var recurrence = json.StringOf("recurrence");
    var responseStatusResponse = json.StringOf("responseStatus.response");
    var responseStatusTime = json.StringOf("responseStatus.time");
    var bodyContentType = json.StringOf("body.contentType");
    var bodyContent = json.StringOf("body.content");
    var startDateTime = json.StringOf("start.dateTime");
    var startTimeZone = json.StringOf("start.timeZone");
    var endDateTime = json.StringOf("end.dateTime");
    var endTimeZone = json.StringOf("end.timeZone");
    var locationDisplayName = json.StringOf("location.displayName");
    var locationLocationType = json.StringOf("location.locationType");
    var locationUniqueId = json.StringOf("location.uniqueId");
    var locationUniqueIdType = json.StringOf("location.uniqueIdType");
    var organizerEmailAddressName = json.StringOf("organizer.emailAddress.name");
    var organizerEmailAddressAddress = json.StringOf("organizer.emailAddress.address");
    var i = 0;
    var count_i = json.SizeOfArray("categories");
    while (i < count_i) {
        json.I = i;
        //  ...
        i = i+1;
    }

    i = 0;
    count_i = json.SizeOfArray("locations");
    while (i < count_i) {
        json.I = i;
        displayName = json.StringOf("locations[i].displayName");
        locationType = json.StringOf("locations[i].locationType");
        uniqueId = json.StringOf("locations[i].uniqueId");
        uniqueIdType = json.StringOf("locations[i].uniqueIdType");
        i = i+1;
    }

    i = 0;
    count_i = json.SizeOfArray("attendees");
    while (i < count_i) {
        json.I = i;
        type = json.StringOf("attendees[i].type");
        statusResponse = json.StringOf("attendees[i].status.response");
        statusTime = json.StringOf("attendees[i].status.time");
        emailAddressName = json.StringOf("attendees[i].emailAddress.name");
        emailAddressAddress = json.StringOf("attendees[i].emailAddress.address");
        i = i+1;
    }

    console.log("Success.");

}

chilkatExample();