test.js

let a0m = require("./server/auth0/mgmt");
let cli = a0m.getAuthenticationClient("password");

const AuthenticationClient = require('auth0').AuthenticationClient;

let cli = new AuthenticationClient({
  domain: config.auth0config.domain,
  clientId: config.auth0config[clientId],
  clientSecret: config.secrets[clientSecret]
});

let user, err;

cli.oauth.passwordGrant({username: <my email>, password: <my password>, realm: "MMID"}, function(e,u) {err = e; user = u;})