Node Eval

README.md

@@ -1,5 +1,51 @@
-## Sunglasses.io Server
+# Sunglasses.io Server
 
-This project has been created by a student at Project Shift, a software engineering fellowship located in Downtown Durham.  The work in this repository is wholly of the student based on a sample starter project that can be accessed by looking at the repository that this project forks.
+This project is an API for an e-commerce store selling sunglasses.
 
-If you have any questions about this project or the program in general, visit projectshift.io or email hello@projectshift.io.
+## Routes
+
+The following routes are supported by this API
+
+```
+GET /brands
+GET /brands/:id/products
+GET /products
+POST /login
+GET /me/cart
+DELETE /me/cart/:productId
+POST /me/cart/:productId
+```
+
+Documentation for each route can be found in the swagger.yaml file
+
+## Getting Started
+
+### Prerequisites
+
+- Node.js (version 14 or above)
+- npm
+
+### Installation
+
+1. Clone the repository:
+
+   ```bash
+   git clone https://github.com/acl13/sunglasses-io.git
+   cd sunglasses-io
+   ```
+
+2. Install dependencies:
+
+   ```bash
+   npm install
+   ```
+
+### Testing
+
+```bash
+ npm test
+```
+
+This project has been created by a student at Parsity, an online software engineering course. The work in this repository is wholly of the student based on a sample starter project that can be accessed by looking at the repository that this project forks.
+
+If you have any questions about this project or the program in general, visit [parsity.io](https://parsity.io/) or email hello@parsity.io.

app/server.js

@@ -1,31 +1,179 @@
-const express = require('express');
-const bodyParser = require('body-parser');
-const jwt = require('jsonwebtoken');
-const swaggerUi = require('swagger-ui-express');
-const YAML = require('yamljs');
-const swaggerDocument = YAML.load('./swagger.yaml'); // Replace './swagger.yaml' with the path to your Swagger file
+const express = require("express");
+const bodyParser = require("body-parser");
+const jwt = require("jsonwebtoken");
+const swaggerUi = require("swagger-ui-express");
+const YAML = require("yamljs");
+const swaggerDocument = YAML.load("./swagger.yaml");
 const app = express();
 
 app.use(bodyParser.json());
 
 // Importing the data from JSON files
-const users = require('../initial-data/users.json');
-const brands = require('../initial-data/brands.json');
-const products = require('../initial-data/products.json');
+const users = require("../initial-data/users.json");
+const brands = require("../initial-data/brands.json");
+const products = require("../initial-data/products.json");
 
 // Error handling
 app.use((err, req, res, next) => {
-	console.error(err.stack);
-	res.status(500).send('Something broke!');
+  console.error(err.stack);
+  res.status(500).send("Something broke!");
 });
 
 // Swagger
-app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocument));
+app.use("/api-docs", swaggerUi.serve, swaggerUi.setup(swaggerDocument));
+
+app.get("/brands", (request, response) => {
+  response.send(brands);
+});
+
+app.get("/products", (request, response) => {
+  response.send(products);
+});
+
+app.get("/brands/:id/products", (request, response) => {
+  // Get all products that match the brand id
+  // The sample data provided has a categoryId property that aligns with the brand id numbers - I think it would be better named "brandId" but chose not to change the existing data
+  const filteredProducts = products.filter((product) => {
+    return product.categoryId == request.params.id;
+  });
+
+  if (filteredProducts.length === 0) {
+    response.status(404);
+    response.send({ message: "No products found" });
+  } else {
+    response.send(filteredProducts);
+  }
+});
+
+app.post("/login", (request, response) => {
+  const { username, password } = request.body;
+
+  const user = users.find((user) => {
+    return user.login.username == username && user.login.password == password;
+  });
+
+  if (!username || !password) {
+    response.status(401);
+    response.send({ message: "Both a username and password are required" });
+  }
+
+  if (user) {
+    const token = jwt.sign({ user }, "secretKey", { expiresIn: "1hr" });
+    response.set("authorization", `Bearer ${token}`);
+    response.status(200);
+    response.send(user);
+  } else {
+    response.status(401);
+    response.send({ message: "Incorrect username or password" });
+  }
+});
+
+const getAuthenticatedUser = (request) => {
+  const authHeader = request.headers["authorization"];
+  if (!authHeader) {
+    return;
+  }
+  const token = authHeader.split(" ")[1];
+  const decoded = jwt.verify(token, "secretKey");
+
+  let authenticatedUser = users.find(
+    (user) => user.login.username == decoded.user.login.username
+  );
+  return authenticatedUser;
+};
+
+app.get("/me/cart", (request, response) => {
+  const user = getAuthenticatedUser(request);
+  if (!user) {
+    response.status(401);
+    response.send({ message: "Authentication failed" });
+  } else {
+    response.status(200);
+    response.send(user.cart);
+  }
+});
+
+app.post("/me/cart", (request, response) => {
+  const user = getAuthenticatedUser(request);
+  if (!user) {
+    response.status(401);
+    response.send({ message: "Authentication failed" });
+  }
+
+  const product = products.find((product) => product.id == request.body.id);
+
+  if (!product) {
+    response.status(404);
+    response.send({ message: "Product not found" });
+  }
+
+  user.cart.push(product);
+  response.status(200);
+  response.send(user.cart);
+});
+
+app.delete("/me/cart/:productId", (request, response) => {
+  const user = getAuthenticatedUser(request);
+  if (!user) {
+    response.status(401);
+    response.send({ message: "Authentication failed" });
+  }
+
+  const product = products.find(
+    (product) => product.id == request.params.productId
+  );
+
+  if (!product) {
+    response.status(404);
+    response.send({ message: "Product not found" });
+  }
+
+  const productIndex = user.cart.indexOf(product);
+  user.cart.splice(productIndex, 1);
+  response.status(200);
+  response.send(user.cart);
+});
+
+app.post("/me/cart/:productId", (request, response) => {
+  const user = getAuthenticatedUser(request);
+  if (!user) {
+    response.status(401);
+    response.send({ message: "Authentication failed" });
+  }
+
+  const product = products.find(
+    (product) => product.id == request.params.productId
+  );
+
+  if (!product) {
+    response.status(404);
+    response.send({ message: "Product not found" });
+  }
+
+  // Something like an "amountInCart" property on each product would be much easier to update, but this is what I could get working with the provided data
+  const currentAmount = user.cart.filter(
+    (product) => product.id == request.params.productId
+  ).length;
+  const desiredAmount = request.body.amount;
+
+  if (desiredAmount > currentAmount) {
+    for (let i = currentAmount; i < desiredAmount; i++) {
+      user.cart.push(product);
+    }
+  } else if (desiredAmount < currentAmount) {
+    for (let i = desiredAmount; i < currentAmount; i++) {
+      const productIndex = user.cart.indexOf(product);
+      user.cart.splice(productIndex, 1);
+    }
+  }
+  response.status(200);
+  response.send(user.cart);
+});
 
 // Starting the server
 const PORT = process.env.PORT || 3000;
 app.listen(PORT, () => {
-	console.log(`Server running on port ${PORT}`);
+  console.log(`Server running on port ${PORT}`);
 });
 
 module.exports = app;