Issue with dismissing Identity Risk Events via Graph API - microsoft-graph-api

Question

I am trying to dismiss/close risk events using an automated process. For this we would need to make use of Graph API https://graph.microsoft.com/beta/riskyUsers/dismiss
I did searched for examples and couldn't find any.
I did tried using Post man by providing OAuth Bearer token in the header and I did tried with a PowerShell script and I also tried with .Net example provided in the page. None of them worked
PowerShell Code
{
$body = #{grant_type="client_credentials";resource=$resource;client_id=$ClientID;client_secret=$ClientSecret}
$oauthResponse = Invoke-RestMethod -Method POST -Uri $loginURL/$TenantName/oauth2/token?api-version=1.0 -Body $body
return $oauthResponse
}
$loginURL = "https://login.windows.net"
$resource = "https://graph.microsoft.com"
$ClientSecret="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
$ClientID="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
$TenantName="xxxxx.com"
$oauth=RefreshToken -loginURL $loginURL -resource $resource -ClientID $ClientID -clientSecret $ClientSecret -tenantName $TenantName
$headerParams = #{'Authorization'="$($oauth.token_type) $($oauth.access_token)"}
$url="https://graph.microsoft.com/beta/riskyUsers/dismiss"
$userIds=#()
$userIds+="xxxxx-xxxxx-xxxxx-xxxxx-xxxxx"
$body=(#{"userIds"=$userIds})|convertto-json
$Response = Invoke-WebRequest -UseBasicParsing -Headers $headerParams -Uri $url -Body $body -Method Post -ContentType "application/Json"
Response:
Invoke-WebRequest : The remote server returned an error: (500) Internal Server Error.
At C:\SourceCode\MIMSolution\PowerShellScripts\AzurePSMA\RiskyIdentityEvents\ExportScript_debug.ps1:19 char:13
+ $Response = Invoke-WebRequest -UseBasicParsing -Headers $headerParams -Uri $url ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
C# Code:
static void Main(string[] args)
{
var userIdsList = new List<String>();
userIdsList.Add("xxxxx-xxxxx-xxxxx-xxxxx-xxxx");
dismissUser(userIdsList);
}
static async void dismissUser(List<string> userIDs)
{
ClientCredential clientCredential = new ClientCredential("xxxxxxxxxxxxxxxxxxxxxxx");
string clientId = "xxxxxxxxxxxxxxxxxxxxxx";
IConfidentialClientApplication clientApplication = ClientCredentialProvider.CreateClientApplication(clientId, clientCredential);
ClientCredentialProvider authProvider = new ClientCredentialProvider(clientApplication);
GraphServiceClient graphClient = new GraphServiceClient(authProvider);
await graphClient.RiskyUsers.Dismiss(userIDs).Request().PostAsync();
}```
Exception:
{"Code: generalException\r\nMessage: An error occurred sending the request.\r\n"}
Inner Exception:
{"Code: generalException\r\nMessage: Unexpected exception occured while authenticating the request.\r\n"}

Answer 1

Finally after multiple trails , I have figured out the solution:
Issue was with the token which as OAuth 1.0 earlier.
I did fixed this snippet that request OAuth 2.0 and the issue resolved:
function RefreshToken($loginURL,$ClientID,$clientSecret,$tenantName)
{ $body = #{grant_type="client_credentials";client_id=$ClientID;client_secret=$ClientSecret;scope="https://graph.microsoft.com/.default"}
$oauthResponse = Invoke-RestMethod -Method POST -Uri $loginURL/$TenantName/oauth2/v2.0/token -Body $body
return $oauthResponse
}