# API

## GET /products

Returns every product.

```json
[{"id": 1, "name": "Notebook", "price": 4.5, "discount": 0}]
```

## POST /cart

```json
{"product_id": 1, "quantity": 2}
```

Returns 201 with no body.

## GET /cart

```json
{"items": [{"product_id": 1, "quantity": 2}], "total": 9}
```