/// <summary>
/// register an extension attribute on the Application specified by StringConstants.AppObjectId
/// this version only registers a string extension attribute on users
/// </summary>
/// <param name="strExtension">extension name</param>
/// <param name="strErrors">error return value</param>
/// <returns>success or failure</returns>
public bool RegisterExtension(string strExtension, ref string strErrors)
{
// setup the extension definition
ExtensionDefinition extension = new ExtensionDefinition();
extension.name = strExtension;
extension.dataType = "String";
extension.targetObjects.Add("User");
// Execute the POST to create new extension
ExtensionDefinition returnedExtension = this.graphCall.createExtension(extension, ref strErrors);
return returnedExtension != null;
}
public ExtensionDefinition createExtension(ExtensionDefinition extension, ref string strErrors)
{
if (this.aadAuthentication.AadAuthenticationResult.IsExpired() ||
this.aadAuthentication.AadAuthenticationResult.WillExpireIn(2))
this.aadAuthentication.AadAuthenticationResult = this.aadAuthentication.GetNewAuthenticationResult(ref strErrors);
if (this.aadAuthentication.AadAuthenticationResult == null)
return null;
string authnHeader = "Authorization: " + this.aadAuthentication.AadAuthenticationResult.AccessToken;
string uri = this.BaseGraphUri + "/applications/" + StringConstants.AppObjectId + "/extensionProperties" + "?" + this.ApiVersion;
JsonSerializerSettings jsonSettings = new JsonSerializerSettings();
jsonSettings.NullValueHandling = NullValueHandling.Ignore;
jsonSettings.DefaultValueHandling = DefaultValueHandling.Ignore;
JsonSerializer serializer = JsonSerializer.CreateDefault(jsonSettings);
string body = JsonConvert.SerializeObject(JObject.FromObject(extension, serializer), Formatting.None, jsonSettings);
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
request.Headers.Add(authnHeader);
request.Method = "POST";
request.ContentType = "application/json";
byte[] data = encoding.GetBytes(body);
request.ContentLength = data.Length;
using (Stream stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
if (response.StatusCode != HttpStatusCode.Created)
{
throw new Exception(String.Format(
"Server error (HTTP {0}: {1}).",
response.StatusCode,
response.StatusDescription));
}
else
using (var stream = response.GetResponseStream())
{
string payload;
using (System.IO.StreamReader reader = new System.IO.StreamReader(stream))
{
payload = reader.ReadToEnd();
}
return JObject.Parse(payload).ToObject<ExtensionDefinition>();
}
}
}
catch (WebException webException)
{
GraphHelperEventSourceLogger.Log(webException, ref strErrors);
return null;
}
}