# DINO\_SCRUM

## MODEL

### Product
```json5
{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```
``id`` - id of product,

``name`` - name of product with minimal length 2;

``price`` price of product, cannot be under 0.00;

``quantity``: quantity of product in database, cannot be under 0;

``quantityMax``: maximum quantity of product in database, cannot be under 0;

``imageLink``: link to image of product

Any of these couldn't be ``null`` 

## API 

### Edit quantity of the product.

The service will handle `POST` requests for `/api/product/change-quantity`, by changing quantity of product in database.

``id`` - product's to change `id` 
  
``change`` - value of change (positive value for increase quantity, negative valude for decrease).
 

```json
POST /api/product/change-quantity
Content-Type: application/json

{
 "id": Int,
 "change": Int
}
```

Response `200` with ``JSON``:

```json
{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```


* * *

### Retrieve a paginated list of products
   
The service will handle `GET` requests for `/api/get-all`, by retreving a paginated list of products. Optionally with a `page`, `size` **or**  `page`, `size` and`sort` parameters in the query string. 
Page start numbering on `page=0`. Default list is sorted by `id`.


```json
GET /api/get-all?page=0&size=1&sort=id
Content-Type: application/json
```
Response ``200`` with ``JSON`` :

```json
{
    "content": [
        {
            "id": Int,
             "name": String,
             "price": Float,
             "quantity": Int,
             "quantityMax": Int,
             "imageLink": string
        },
        {
            (...)
        }
    ],
    "pageable": {
        "sort": {
            "sorted": Boolean,
            "unsorted": Boolean,
            "empty": Boolean
        },
        "offset": Int,
        "pageSize": Int,
        "pageNumber": Int,
        "unpaged": Boolean,
        "paged": Boolean
    },
    "totalPages": Int,
    "totalElements": Int,
    "last": Boolean,
    "size": Int,
    "number": Int,
    "numberOfElements": Int,
    "first": Boolean,
    "sort": {
        "sorted": Boolean,
        "unsorted": Boolean,
        "empty": Boolean
    },
    "empty": Boolean
}
```

* * *
### Get price of all products.
The service will handle `GET` request on `/api/get-price-of-all` returing `Float` price of all products in the database.

```json
GET /api/get-price-of-all
Content-Type: application/json
```
Response `200` with ``JSON``:

```json
{
 "price-of-all": Float
}
```


* * *
### Create a new product.
The service will handle `POST` request `/api/product/add`, by adding `Product` to database.

```json
POST /api/product/add
Content-Type: application/json

{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```
Response `201` with `JSON` 

```json

{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```

* * *
### Delete product with `id`.
The service will handle `DELETE` request `/api/delete-product`, by  

```json
DELETE /api/delete-product
Content-Type: application/json

{
 "id": Int
}

```
```json

Response: 200

```
* * *

### Get product with `id`
The service wil handle `GET` request `/api/product/get-by-id`, by returning product with `id`. 

```json
GET /api/product/get-by-id
Content-Type: application/json

{
 "id": Int
}
```

Response `200` with `JSON`:

```json
{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```

* * *

### Update product
The service will handle ``POST`` request `/api/product/update/{id}` with path variable `id`, by updating existing product. In request
`id` is required, fields which won't be modified should be `null`.


```json
POST /api/product/update/{id}
Content-Type: application/json

{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```

Response `200` with `JSON`:

```json
{
 "id": Int,
 "name": String,
 "price": Float,
 "quantity": Int,
 "quantityMax": Int,
 "imageLink": String
}
```