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In order to perform operations with the Report Server you have to authenticate first. This can be done by sending a request to the Token endpoint with your credentials and as result get an access token.

Here is a sample code snippet which demonstrates how to login and get the token:

  var serverHost = "http://reportserver:83/";     

  function login(username, password) {

    var accessToken = "";

      type: "POST",
      url: serverHost + "Token",
      async: false,
      data: {
        grant_type: "password",
        username: username,
        password: password
    .done(function (data, textStatus, jqXHR) {
      accessToken = data.access_token;
    .fail(function (xhr, status, error) {
      window.alert(xhr.status + ": " + error);

    return accessToken;

Once you get the access token, you can store it in window.sessionStorage and later use it in subsequent requests.

  var serverTokenKey = "TelerikReportServerToken";

  $(document).ready(function () {
    var accessToken =
      login("telerik", "telerik");
    window.sessionStorage.setItem(serverTokenKey, accessToken);

The Guest user account does not need an authentication token to log in, therefore you cannot obtain a token when providing null or empty strings as login arguments. In this case a 1.1.400 Bad Request will be returned from the server.

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