Add /api/posts/ route

server/routes/api/posts.js

@@ -0,0 +1,34 @@
+const express = require('express')
+const mongodb = require('mongodb')
+
+const router = express.Router()
+
+const DB_NAME = process.env.DB_NAME || 'test'
+const URI = process.env.URI || 'mongodb://localhost:27017'
+
+async function getPostCollection() {
+  const client = await mongodb.MongoClient.connect(URI, {
+    useNewUrlParser: true,
+    useUnifiedTopology: true,
+  })
+  return client.db(DB_NAME).collection('posts')
+}
+
+router.get('/', async (req, res) => {
+  const posts = await getPostCollection()
+  res.send(await posts.find({}).toArray())
+})
+
+router.get('/:id', async (req, res) => {
+  const re = /[0-9A-Fa-f]{24}/g
+
+  if (!re.test(req.params.id)) {
+    res.status(404).send('Sorry, can not find that')
+    return
+  }
+
+  const posts = await getPostCollection()
+  res.send(await posts.find({ _id: mongodb.ObjectID(req.params.id) }).toArray())
+})
+
+module.exports = router