Add product creation functionality to the API

[austenstone]

This pull request introduces a new feature to allow the creation of products in the application. The most important changes include adding a new function to handle product creation in the model and updating the routes to handle the new product creation endpoint.

[Copilot]

Pull Request Overview

This pull request adds product creation functionality to the API by introducing a new endpoint and a corresponding database insertion function. Key changes include:

• Adding a new '/products/create' route to handle product creation requests.
• Introducing a new create function in the products model to insert product records into the database.
• Updating SQL queries to use parameterized arguments for secure database access.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
routes/products.js	New endpoint for product creation without response handling.
model/products.js	New create() function using a parameterized query, though it omits some product fields passed in by the route.

Tip: Leave feedback on Copilot's review comments with the 👎 and 👍 buttons to help improve review quality. Learn more

[Copilot]

The product creation endpoint does not send a response back to the client after attempting to create the product. Consider adding proper response handling (e.g., res.send() or res.json()) to confirm the operation’s success or failure.

Suggested change

	db_products.create(product)
	db_products.create(product)
	.then(function () {
	res.json({ message: "Product created successfully" });
	})
	.catch(function (err) {
	console.log(err);
	res.status(500).json({ message: "Error creating product" });
	});

[Copilot]

The SQL query in the create() function only inserts the name, description, and price, while the route passes additional fields (image and username). Update the query to include the additional fields or adjust the route accordingly.

Suggested change

	var q = "INSERT INTO products(name, description, price) VALUES($1, $2, $3);";
	return db.one(q, [product.name, product.description, product.price]);
	var q = "INSERT INTO products(name, description, price, image, username) VALUES($1, $2, $3, $4, $5);";
	return db.one(q, [product.name, product.description, product.price, product.image, product.username]);