test.js

'use strict'

const axios = require('axios')
const url = require('url')

const delay = (time) => new Promise((resolve) => setTimeout(resolve, time))

!async function main() {
  const baseUrl = 'https://letsrevolutionizetesting.com/challenge.json'

  let req = await axios.get(baseUrl)

  while (req.data.follow) {
    const followUrl = new url.URL(req.data.follow)
    const nextUrl = baseUrl + followUrl.search

    req = await axios.get(nextUrl)

    console.log(req.data)
    await delay(1000)
  }
}()