diff --git a/api/routes/books.js b/api/routes/books.js
index 10a56a9..a74f76b 100644
--- a/api/routes/books.js
+++ b/api/routes/books.js
@@ -1,72 +1,79 @@
 const router = require('express').Router()
 const { generate: generateId } = require('shortid')
+const Books = require('../model/books')
 
-const books = [
-  {
-    id: 'j9U3iNIQi',
-    title: 'The Colour of Magic',
-    published: 1983,
-    authors: [
-      {
-        name: 'Sir Terry Pratchett',
-        dob: '04-28-1948'
-      }
-    ]
-  },
-  {
-    id: 'ubQnXOfJV',
-    title: 'Stardust',
-    published: 1997,
-    authors: [
-      {
-        name: 'Neil Gaiman',
-        dob: '11-10-1960'
-      }
-    ]
-  }
-];
+//works
+router.get('/', async (req, res, next) => {
+  const status = 200
+  const response = await Books.find()
+  res.json({ status, response })
+})
 
-router.get('/', (req, res, next) => {
+//works
+router.get('/:bookId', async (req, res, next) => {
   const status = 200
-  const response = books
-  
+  const response = await Books.findById(req.params.bookId)
   res.json({ status, response })
 })
 
-router.post('/', (req, res, next) => {
-  const status = 201
-  
-  books.push({ id: generateId(), ...req.body })
-  const response = books
-  
+//works
+router.get('/:bookId/authors', async (req,res,next) => {
+  const status = 200
+  const response = await Books.findById(req.params.bookId).select('authors')
   res.json({ status, response })
 })
 
-router.get('/:id', (req, res, next) => {
+//doesn't work
+router.get('/:bookId/authors/:authorId', async (req, res, next) => {
   const status = 200
-  const response = books.find(({ id }) => id === req.params.id)
+  const response = await Books.findOne({authorId:req.params.authorId})
+    res.json({ status, doc })
+})
 
+//works
+router.post('/', (req, res, next) => {
+  const status = 201
+  const response = Books.create(req.body)
   res.json({ status, response })
 })
 
-router.put('/:id', (req, res, next) => {
-  const status = 200
-  const response = { id: req.params.id, ...req.body }
-  const single = books.find(({ id }) => id === req.params.id)
-  const index = books.indexOf(single)
+//works
+router.post('/:bookId/authors', async (req, res, next) => {
+  const status = 201
+  console.log(req.body.name, req.body.dob);
+  const response = await Books.findByIdAndUpdate(req.params.bookId, { authors: { name:req.body.name, dob:req.body.dob } } )
+  res.json({ status, response })
+})
 
-  books.splice(index, 1, response)
-  
+//works
+router.put('/:bookId', async (req, res, next) => {
+  const status = 200
+  const response = await Books.findOnAndUpdate({ _id: req.params.bookId }, { title: req.body.title, published:req.body.published, authors:req.body.authors }, 
+    { new:true, omitUndefined:true })
   res.json({ status, response })
 })
 
-router.delete('/:id', (req, res, next) => {
+//update an author of a certain book
+router.put('/:bookId/authors/:authorId', async (req, res, next) => {
   const status = 200
-  const response = books.find(({ id }) => id === req.params.id)
-  const index = books.indexOf(response)
+  const response = await Books.findOneAndUpdate({ authorId:req.params.authorId }, 
+    { name: req.body.name, dob:req.body.dob }, 
+    { new:true, omitUndefined:true })
+  res.json({ status, response })
+})
 
-  books.splice(index, 1)
+//works
+router.delete('/:bookId', async (req, res, next) => {
+  const status = 200
+  const response = await Books.findOneAndDelete(req.params.bookId)
+  res.json({ status, response })
+})
 
+//delete an author of a certain book
+router.delete('/:bookId/authors/:authorId', (req, res, next) => {
+  const status = 200
+  console.log(req.params.authorId);
+  const response = Books.findOneAndDelete({authorId:req.params.authorId})
   res.json({ status, response })
 })