added some error codes for REST

src/servers/restServer.ts

@@ -25,6 +25,7 @@ export default class RestServer implements IServer {
 
     this.server.get("/product/:product_id", async (req: express.Request, res: express.Response) => {
       const { productId } = req.params as ProductRequest;
+      if (!productId) res.status(400).send("No product id provided");
       const product = await this.db.queryProductById(productId);
       res.send(product)
     }); // Gets a product by product id
@@ -52,18 +53,21 @@ export default class RestServer implements IServer {
 
     this.server.get("/orders", async (req: express.Request, res: express.Response) => {
       const { id } = req.query as UserRequest;
+      if (!id) res.status(400).send("No user id provided");
       const orders = await this.db.queryOrdersByUser(id);
       res.send(orders);
     }); // Gets all of a single user's orders
 
     this.server.get("/order/:id", async (req: express.Request, res: express.Response) => {
       const { id } = req.params as OrderRequest;
+      if (!id) res.status(400).send("No order id provided");
       const order = await this.db.queryOrderById(id);
       res.send(order);
     }); // Gets more details on a specific order by id
 
     this.server.get("/user/:id", async (req: express.Request, res: express.Response) => {
       const { id } = req.params as UserRequest;
+      if (!id) res.status(400).send("No user id provided");
       const user = await this.db.queryUserById(id);
       res.send(user);
     }); // Gets details on a specific user by username