Delete a Product (DELETE) in TypeScript

The shop stops selling the Gift card. To remove a product, a client sends a DELETE to the product's own path, /products/8: the third method on that path, after GET and PUT. It needs no body: the id in the path says it all.

Here is a DELETE on another table, a list of newsletter subscribers:

const result = db.prepare("DELETE FROM subscribers WHERE id = ?").run(3);
console.log(result.changes);   // 1 if subscriber 3 was there, 0 if not

The WHERE matters even more than in an UPDATE: DELETE FROM products alone empties the whole table. Deleting an id that isn't there is no error, it just removes nothing, so result.changes is 0 and you answer 404. When a product is removed, you answer 204 No Content with an empty body: it worked, and there is nothing to send back.

Starting from the shop's 8 products, your code must answer, in this order:

DELETE /products/8  →  204  (empty body)
GET /products/8  →  404  {"error": "Product not found"}
DELETE /products/8  →  404  {"error": "Product not found"}
DELETE /products/99  →  404  {"error": "Product not found"}

Your task: add the route DELETE /products/:productId. Delete that product with a ? placeholder. Answer 404 if no row was removed, and otherwise an empty body with the status 204.

Assignment
Follow the Coding Tutorial to add the DELETE /products/:productId route, which removes a product from the database.

Hint
The DELETE has one ?, so .run takes one value: the id, a number, with no ... in front. For the 204, set the status with res.status, then call send() with nothing in the parentheses.