Async / Await IIFE return in Hapi 17 routing

async-await-iife.js

  server.route({
      method: 'GET',
      path: '/api/endpoint',
      handler: (request, h) => {
          return (async () => {
              try {
                    const { payload } = await Wreck.get('URL')
                    return h.response(payload && payload.toString())
                }
                catch (ex) {
                    console.error(ex)
                    return ex
                }
          })()
      }
  })
  // for: https://medium.com/@gattermeier/async-await-iife-in-hapi-17-routing-3aacf4d924c7