update service worker index

Author: Carlos Rufo

src/index.js

@@ -2,29 +2,29 @@ import React from 'react'
 import ReactDOM from 'react-dom'
 import './styles/index.css'
 import App from './components/App'
-import registerServiceWorker from './registerServiceWorker'
+import * as serviceWorker from './serviceWorker'
 import { ApolloProvider } from 'react-apollo'
 import { ApolloClient } from 'apollo-client'
 import { createHttpLink } from 'apollo-link-http'
 import { InMemoryCache } from 'apollo-cache-inmemory'
 import { BrowserRouter } from 'react-router-dom'
-import { AUTH_TOKEN } from './constants'
 import { setContext } from 'apollo-link-context'
+import { AUTH_TOKEN } from './constants'
 import { split } from 'apollo-link'
 import { WebSocketLink } from 'apollo-link-ws'
 import { getMainDefinition } from 'apollo-utilities'
 
 const httpLink = createHttpLink({
-  uri: 'http://localhost:4000'
+  uri: 'http://localhost:4000',
 })
 
 const authLink = setContext((_, { headers }) => {
   const token = localStorage.getItem(AUTH_TOKEN)
   return {
     headers: {
       ...headers,
-      authorization: token ? `Bearer ${token}` : ''
-    }
+      authorization: token ? `Bearer ${token}` : '',
+    },
   }
 })
 
@@ -33,9 +33,9 @@ const wsLink = new WebSocketLink({
   options: {
     reconnect: true,
     connectionParams: {
-      authToken: localStorage.getItem(AUTH_TOKEN)
-    }
-  }
+      authToken: localStorage.getItem(AUTH_TOKEN),
+    },
+  },
 })
 
 const link = split(
@@ -44,12 +44,12 @@ const link = split(
     return kind === 'OperationDefinition' && operation === 'subscription'
   },
   wsLink,
-  authLink.concat(httpLink)
+  authLink.concat(httpLink),
 )
 
 const client = new ApolloClient({
   link,
-  cache: new InMemoryCache()
+  cache: new InMemoryCache(),
 })
 
 ReactDOM.render(
@@ -58,6 +58,6 @@ ReactDOM.render(
       <App />
     </ApolloProvider>
   </BrowserRouter>,
-  document.getElementById('root')
+  document.getElementById('root'),
 )
-registerServiceWorker()
+serviceWorker.unregister()