Auth0 Rule - take an action for a specific `audience` in the request

auth0-rule-audience-specific-action.js

function (user, context, callback) {
  const audience = context.request.query.audience || false;
  if ( !audience || '<API_AUDIENCE>' !== audience) {
    callback(null, user, context);
  }
  // Do something with an authentication request that matches <API_AUDIENCE>
  // ...
  callback(null, user, context);
}