refactor: support multiaddr in moduleConfig.(#544)

Author: nunofmn

src/utils/module-config.js

@@ -1,11 +1,20 @@
 'use strict'
 
+const getConfig = require('./default-config')
+const requestAPI = require('./request-api')
+const multiaddr = require('multiaddr')
+
 module.exports = (arg) => {
+  const config = getConfig()
+
   if (typeof arg === 'function') {
     return arg
   } else if (typeof arg === 'object') {
-    const requestAPI = require('./request-api')
     return requestAPI(arg)
+  } else if (typeof arg === 'string') {
+    const maddr = multiaddr(arg).nodeAddress()
+    config.host = maddr.address
+    config.port = maddr.port
   } else {
     throw new Error('Argument must be a send function or a config object.')
   }