Add default export for better ES module (TypeScript) compatibility (#605)

Author: daffl

packages/authentication/README.md

@@ -6,7 +6,7 @@
 [![Test Coverage](https://api.codeclimate.com/v1/badges/65abe50ec85244072ee9/test_coverage)](https://codeclimate.com/github/feathersjs/authentication/test_coverage)
 
 [![Greenkeeper badge](https://badges.greenkeeper.io/feathersjs/authentication.svg)](https://greenkeeper.io/)
-[![Download Status](https://img.shields.io/npm/dm/feathersjs/authentication.svg?style=flat-square)](https://www.npmjs.com/package/@feathersjs/authentication)
+[![Download Status](https://img.shields.io/npm/dm/@feathersjs/authentication.svg?style=flat-square)](https://www.npmjs.com/package/@feathersjs/authentication)
 [![Slack Status](http://slack.feathersjs.com/badge.svg)](http://slack.feathersjs.com)
 
 > Add Authentication to your FeathersJS app.

packages/authentication/lib/index.js

@@ -9,7 +9,7 @@ const socket = require('./socket');
 
 const debug = Debug('@feathersjs/authentication:index');
 
-module.exports = function init (config = {}) {
+function init (config = {}) {
   return function authentication () {
     const app = this;
     const _super = app.setup;
@@ -72,10 +72,13 @@ module.exports = function init (config = {}) {
       return result;
     };
   };
-};
+}
+
+module.exports = init;
 
 // Exposed Modules
 Object.assign(module.exports, {
+  default: init,
   hooks,
   express,
   service

packages/authentication/test/index.test.js

@@ -31,6 +31,10 @@ describe('Feathers Authentication', () => {
     expect(typeof authentication).to.equal('function');
   });
 
+  it('exposes default', () => {
+    expect(typeof authentication.default).to.equal('function');
+  });
+
   it('exposes hooks', () => {
     expect(typeof authentication.hooks).to.equal('object');
   });