Retrive AccessToken

How to retrieve API token using SSJS?

<script runat="server">

    Platform.Load("Core", "1");

    try {

        var tokenUrl = 'https://{Subdomain}.auth.marketingcloudapis.com/v2/token';

        var contentType = 'application/json';

        var tokenPayload = {

            "grant_type": "client_credentials",

            "client_id": "Your Client ID",

            "client_secret": "Your CLient Scerect",

            "account_id": "MID"

        };

        var tokenResponse = HTTP.Post(tokenUrl, contentType, Stringify(tokenPayload));

        var tokenStatusCode = tokenResponse.StatusCode;

        var tokenObj = Platform.Function.ParseJSON(tokenResponse.Response + '');

        if (tokenStatusCode === 200 && tokenObj && tokenObj.access_token) {

            var accessToken = tokenObj.access_token;

            var authorizationHeader = 'Bearer ' + accessToken;

            Platform.Response.Write('tokenStatusCode: ' + tokenStatusCode + '<br/>');

            Platform.Response.Write('accessToken: ' + accessToken + '<br/>');

            Platform.Response.Write(Stringify(tokenObj) + '<br/>');

        } else {

            Platform.Response.Write('Failed to obtain access token. Response code: ' + tokenStatusCode + '<br/>');

        }

    } catch (ex) {

        Platform.Response.Write("Error message: " + ex);

    }

</script>