401 Unauthorized when trying to use REST API

[yallami]

Hello, i am trying to intergrate the Splunk Ui Toolkit into my  own Splunk instace that is running on localhost.

I am using react to get a sessionkey with the following function:

async function GetSessionKey(username, password, server) {

    var key = await fetch(server + "/services/auth/login", {

      method: "POST",

      body: new URLSearchParams({

        username: username,

        password: password,

        output_mode: "json",

      }),

      headers: {

        "Content-Type": "application/x-www-form-urlencoded",

      },

    })

      .then((response) => response.json())

      .then((data) => {

        return data["sessionKey"];

      });
But i always get this on my network showing

[yallami]

Thank you for your answers. It turned out, I had to trust the ssl certificate.

[tscroggins]

Hi @yallami,

At a glance, do username and password contain special or unsafe characters? You may need e.g.:

{
  username: encodeURIComponent(username),
  password: encodeURIComponent(password),
  output_mode: "json"
}

[tscroggins]

--you may also need to perform other sanity checks on username and password before passing them to encodeURIComponent. Check mdn etc. for examples.