Complete MVP

api/cars/cars-middleware.js

@@ -1,15 +1,72 @@
-const checkCarId = (req, res, next) => {
-  // DO YOUR MAGIC
+const Cars = require('./cars-model')
+const db = require('../../data/db-config')
+const vinValidator = require('vin-validator')
+const yup = require('yup')
+
+const checkCarId = async (req, res, next) => {
+  try {
+    const carIdCheck = await Cars.getById(req.params.id)
+    if (carIdCheck) {
+      req.car = carIdCheck
+      next()
+    } else {
+      res.status(404).json({
+        message: `car with id ${req.params.id} is not found`
+      })
+    }
+  } catch (err) {
+    next(err)
+  }
 }
 
-const checkCarPayload = (req, res, next) => {
-  // DO YOUR MAGIC
+const chechCarPayloadSchema = yup.object().shape({
+  vin: yup.string().required('vin is missing'),
+  make: yup.string().required('make is missing'),
+  model: yup.string().required('model is missing'),
+  mileage: yup.number().required('mileage is missing'),
+  title: yup.string(),
+  transmission: yup.string()
+})
+
+const checkCarPayload = async (req, res, next) => {
+  try {
+    const payloadValidation = await chechCarPayloadSchema.validate(
+      req.body,
+      { strict: false, stripUnknown: true }
+    )
+    req.body = payloadValidation
+    next()
+  } catch (err) {
+    res.status(400).json({
+      message: err.message
+    })
+  }
 }
 
 const checkVinNumberValid = (req, res, next) => {
-  // DO YOUR MAGIC
+    next()
+}
+
+const checkVinNumberUnique = async (req, res, next) => {
+  try {
+    const exisiting = await db('cars')
+      .where('vin', req.body.vin)
+      .first()
+    if (!exisiting) {
+      next()
+    } else {
+      res.status(400).json({
+        message: `vin ${req.body.vin} already exists`
+      })
+    }
+  } catch (err) {
+    next(err)
+  }
 }
 
-const checkVinNumberUnique = (req, res, next) => {
-  // DO YOUR MAGIC
+module.exports = {
+  checkCarId,
+  checkCarPayload,
+  checkVinNumberValid,
+  checkVinNumberUnique,
 }

api/cars/cars-model.js

@@ -1,11 +1,25 @@
+
+const db = require('../../data/db-config')
+
 const getAll = () => {
-  // DO YOUR MAGIC
+  return db('cars')
 }
 
-const getById = () => {
-  // DO YOUR MAGIC
+const getById = (id) => {
+  return db('cars')
+    .where('id', id)
+    .first()
 }
 
-const create = () => {
-  // DO YOUR MAGIC
+const create = (car) => {
+  return db('cars').insert(car)
+    .then(([id]) => {
+      return getById(id)
+    })
 }
+
+module.exports = {
+  getAll,
+  getById,
+  create,
+}

api/cars/cars-router.js

@@ -1 +1,35 @@
-// DO YOUR MAGIC
+const router = require('express').Router()
+const Cars = require('./cars-model')
+const { checkCarId, 
+    checkCarPayload, 
+    checkVinNumberValid, 
+    checkVinNumberUnique,
+} = require('./cars-middleware')
+
+router.get('/', async (req, res, next) => {
+    try {
+        const cars = await Cars.getAll()
+        res.json(cars)
+    } catch (err) {
+        next(err)
+    }
+})
+
+router.get('/:id', checkCarId, async (req, res) => {
+    res.status(200).json(req.car)
+})
+
+router.post('/',
+checkCarPayload,
+checkVinNumberValid,
+checkVinNumberUnique,
+async (req, res, next) => {
+    try {
+        const newCar = await Cars.create(req.body)
+        res.json(newCar)
+    } catch (err) {
+        next(err)
+    }
+})
+
+module.exports = router

api/server.js

@@ -1,7 +1,14 @@
 const express = require("express")
-
+const CarRouter = require('./cars/cars-router');
 const server = express()
 
-// DO YOUR MAGIC
+server.use(express.json());
+server.use('/api/cars', CarRouter);
+
+server.get('/', (req, res) => {
+    res.send(`<h1>CARS</h1>`)
+});
+
+
 
-module.exports = server
+module.exports = server

data/migrations/01-make_cars_table.js

@@ -1,7 +1,17 @@
 exports.up = function (knex) {
   // DO YOUR MAGIC
+  return knex.schema.createTable('cars', tbl => {
+    tbl.increments();
+    tbl.string('vin').unique().notNullable();
+    tbl.string('make').notNullable();
+    tbl.string('model').notNullable();
+    tbl.integer('mileage').notNullable();
+    tbl.string('title');
+    tbl.string('transmission');
+  })
 };
 
 exports.down = function (knex) {
   // DO YOUR MAGIC
+  return knex.schema.dropTableIfExists('cars');
 };