04 request body and cors

README.MD

@@ -1,5 +1,5 @@
 # Creating a RESTful API with Node.js
-This repository accompanies my YouTube video series on building a RESTful API with Node.js
+This repository accompanies my YouTube video series on building a RESTful API with Node.js: [https://github.com/academind/node-restful-api-tutorial.git](https://github.com/academind/node-restful-api-tutorial.git)
 
 ## Usage
 Check out the branch you're interested in (i.e. which belongs to the video in my series you just watched), ```git clone``` it and thereafter run ```npm install```.

api/routes/orders.js

@@ -0,0 +1,36 @@
+const express = require('express');
+const router = express.Router();
+
+// Handle incoming GET requests to /orders
+router.get('/', (req, res, next) => {
+    res.status(200).json({
+        message: 'Orders were fetched'
+    });
+});
+
+router.post('/', (req, res, next) => {
+    const order = {
+        productId: req.body.productId,
+        quantity: req.body.quantity
+    };
+    res.status(201).json({
+        message: 'Order was created',
+        order: order
+    });
+});
+
+router.get('/:orderId', (req, res, next) => {
+    res.status(200).json({
+        message: 'Order details',
+        orderId: req.params.orderId
+    });
+});
+
+router.delete('/:orderId', (req, res, next) => {
+    res.status(200).json({
+        message: 'Order deleted',
+        orderId: req.params.orderId
+    });
+});
+
+module.exports = router;

api/routes/products.js

@@ -0,0 +1,47 @@
+const express = require('express');
+const router = express.Router();
+
+router.get('/', (req, res, next) => {
+    res.status(200).json({
+        message: 'Handling GET requests to /products'
+    });
+});
+
+router.post('/', (req, res, next) => {
+    const product = {
+        name: req.body.name,
+        price: req.body.price
+    };
+    res.status(201).json({
+        message: 'Handling POST requests to /products',
+        createdProduct: product
+    });
+});
+
+router.get('/:productId', (req, res, next) => {
+    const id = req.params.productId;
+    if (id === 'special') {
+        res.status(200).json({
+            message: 'You discovered the special ID',
+            id: id
+        });
+    } else {
+        res.status(200).json({
+            message: 'You passed an ID'
+        });
+    }
+});
+
+router.patch('/:productId', (req, res, next) => {
+    res.status(200).json({
+        message: 'Updated product!'
+    });
+});
+
+router.delete('/:productId', (req, res, next) => {
+    res.status(200).json({
+        message: 'Deleted product!'
+    });
+});
+
+module.exports = router;

app.js

@@ -1,10 +1,45 @@
-const express = require('express');
+const express = require("express");
 const app = express();
+const morgan = require("morgan");
+const bodyParser = require("body-parser");
+
+const productRoutes = require("./api/routes/products");
+const orderRoutes = require("./api/routes/orders");
+
+app.use(morgan("dev"));
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.json());
+
+app.use((req, res, next) => {
+  res.header("Access-Control-Allow-Origin", "*");
+  res.header(
+    "Access-Control-Allow-Headers",
+    "Origin, X-Requested-With, Content-Type, Accept, Authorization"
+  );
+  if (req.method === 'OPTIONS') {
+      res.header('Access-Control-Allow-Methods', 'PUT, POST, PATCH, DELETE, GET');
+      return res.status(200).json({});
+  }
+  next();
+});
+
+// Routes which should handle requests
+app.use("/products", productRoutes);
+app.use("/orders", orderRoutes);
 
 app.use((req, res, next) => {
-    res.status(200).json({
-        message: 'It works!'
-    });
+  const error = new Error("Not found");
+  error.status = 404;
+  next(error);
+});
+
+app.use((error, req, res, next) => {
+  res.status(error.status || 500);
+  res.json({
+    error: {
+      message: error.message
+    }
+  });
 });
 
-module.exports = app;
+module.exports = app;