Manually add attendee to event in external application in C#

(0) Share

Report

Posted on by FlowerPi

When we tried using the C# to call Event API.

We have tried using HttpWebRequest, WebClient, and HttpClient, all get 400 Bad Request.

All responses (2)

Answers (1)

FlowerPi 35 on at

Like (0)

Report

RE: Manually add attendee to event in external application in C#

Hi Clofly,

Thanks a lot! It works perfectly! Thank you so much!
Verified answer

cloflyMao 25,202 on at

Like (0)

Report
RE: Manually add attendee to event in external application in C#

Hi FlowerPi,

I have split your question from the previous thread, a new thread would help people who have same question about how to call Event API in C#.

We can solve it by adding http://localhost:8080 as Origin value in request headers. (If Origin field of your web application is http://localhost:8080.)

static void Main(string[] args) { String endPoint = "https://123456.svc.dynamics.com/EvtMgmt/api/v2.0/events/"; String readableId = "d365mkt"; String token = "abcdef"; String API = endPoint readableId "/registrations?emApplicationtoken=" token; try { var req = HttpWebRequest.Create(API) as HttpWebRequest; req.ContentType = "application/json"; req.Method = "Post"; req.Headers["Origin"] = "http://localhost:8080"; using (var streamWriter = new StreamWriter(req.GetRequestStream())) { string json = "{\"attendees\":[" "{" "\"firstname\": \"Cloflyy\"," "\"lastname\": \"Maoer\"," "\"email\": \"clofly@123.com\"," "\"passId\": \"\"," "\"wailisted\": false," "\"autoRegister\": false," "\"responses\": []," "\"attendeeSessions\": []," "}" "]" "}"; streamWriter.Write(json); } var response = req.GetResponse(); var encoding = ASCIIEncoding.ASCII; using (var reader = new System.IO.StreamReader(response.GetResponseStream(), encoding)) { string responseText = reader.ReadToEnd(); Console.WriteLine(responseText); } } catch (Exception e) { Console.WriteLine(e); } }

Result: