async await version of examples/echo

[dirkmc]

Note: depends on

• fixing this line which is coming in refactor: dht #480
• Latest release of js-libp2p-secio being deployed to npm

[jacobheun]

#480 has been merged!

[jacobheun]

I think we should clean up the echo libp2p bundle to its minimum configuration. I think it's overly complex right now. Here's what I am thinking for the whole file:

'use strict'

const TCP = require('libp2p-tcp')
const WS = require('libp2p-websockets')
const mplex = require('libp2p-mplex')
const secio = require('libp2p-secio')
const defaultsDeep = require('@nodeutils/defaults-deep')
const libp2p = require('../../..')

class Node extends libp2p {
  constructor (_options) {
    const defaults = {
      modules: {
        transport: [
          TCP,
          WS
        ],
        streamMuxer: [ mplex ],
        connEncryption: [ secio ]
      }
    }

    super(defaultsDeep(_options, defaults))
  }
}

module.exports = Node

[dirkmc]

Agreed 👍

I made that change

[jacobheun]

Looks good!