Using request-promise-native module include within a constructor Lambda. Check https://stackoverflow.com/questions/50468120/nodejs-request-get-body

request-promise-native.js

let msurls = ["http://example.org", "http://example.org"]
let request = require ("request-promise-native")

async function doRequests () {
    return await (Promise.all (
        msurls.map (async msurl => await request (msurl)))
    )
}

doRequests (). then (msresult => console.log (msresult))