Use getServerSideProps (#982)

* use getServerSideProps

* return host too

pages/[id].js

@@ -2,13 +2,10 @@ import React from 'react'
 import Router from 'next/router'
 
 import IndexPage from './index'
-import ApiContext from '../components/ApiContext'
 
 import api from '../lib/api'
 
-class IdPage extends React.PureComponent {
+export async function getServerSideProps({ req, res, query }) {
-  static contextType = ApiContext
-  static async getInitialProps({ req, res, query }) {
   const path = query.id
   const parameter = path.length >= 19 && path.indexOf('.') < 0 ? path : null
 
@@ -17,7 +14,7 @@ class IdPage extends React.PureComponent {
     const host = req ? req.headers.host : undefined
     snippet = await api.snippet.get(parameter, { host })
     if (snippet) {
-        return { snippet }
+      return { props: { snippet, host } }
     }
 
     // 404 Not found
@@ -31,12 +28,9 @@ class IdPage extends React.PureComponent {
     }
   }
 
-    return {}
+  return { props: {} }
-  }
-
-  render() {
-    return <IndexPage {...this.props} />
-  }
 }
 
-export default IdPage
+export default React.memo(function IdPage(props) {
+  return <IndexPage {...props} />
+})

pages/embed/[id].js

@@ -2,13 +2,10 @@ import React from 'react'
 import Router from 'next/router'
 
 import EmbedPage from './index'
-import ApiContext from '../../components/ApiContext'
 
 import api from '../../lib/api'
 
-class EmbedIdPage extends React.PureComponent {
+export async function getServerSideProps({ req, res, query }) {
-  static contextType = ApiContext
-  static async getInitialProps({ req, res, query }) {
   const path = query.id
   const parameter = path.length >= 19 && path.indexOf('.') < 0 ? path : null
 
@@ -17,7 +14,7 @@ class EmbedIdPage extends React.PureComponent {
     const host = req ? req.headers.host : undefined
     snippet = await api.snippet.get(parameter, { host })
     if (snippet /* && snippet.gist_id */) {
-        return { snippet }
+      return { props: { snippet } }
     }
 
     // 404 Not found
@@ -31,12 +28,9 @@ class EmbedIdPage extends React.PureComponent {
     }
   }
 
-    return {}
+  return { props: {} }
-  }
-
-  render() {
-    return <EmbedPage {...this.props} />
-  }
 }
 
-export default EmbedIdPage
+export default React.memo(function EmbedIdPage(props) {
+  return <EmbedPage {...props} />
+})