# Set reader display

Sets the reader display to show [cart details](https://docs.stripe.com/terminal/features/display.md).

## Request

```curl
curl https://api.stripe.com/v1/terminal/readers/{{READER_ID}}/set_reader_display \
  -u "<<YOUR_SECRET_KEY>>" \
  -d type=cart \
  -d "cart[currency]=usd" \
  -d "cart[line_items][0][amount]=5100" \
  -d "cart[line_items][0][description]=Red t-shirt" \
  -d "cart[line_items][0][quantity]=1" \
  -d "cart[tax]=100" \
  -d "cart[total]=5200"
```

### Response

```json
{
  "id": "tmr_FDOt2wlRZEdpd7",
  "object": "terminal.reader",
  "action": {
    "failure_code": null,
    "failure_message": null,
    "set_reader_display": {
      "cart": {
        "currency": "usd",
        "line_items": [
          {
            "amount": 5100,
            "description": "Red t-shirt",
            "quantity": 1
          }
        ],
        "tax": 100,
        "total": 5200
      },
      "type": "cart"
    },
    "status": "in_progress",
    "type": "set_reader_display"
  },
  "device_sw_version": "2.37.2.0",
  "device_type": "simulated_wisepos_e",
  "ip_address": "0.0.0.0",
  "label": "Blue Rabbit",
  "last_seen_at": 1695166525506,
  "livemode": false,
  "location": "tml_FDOtHwxAAdIJOh",
  "metadata": {},
  "serial_number": "259cd19c-b902-4730-96a1-09183be6e7f7",
  "status": "online"
}
```

## Returns

Returns an updated `Reader` resource.

## Parameters

- `type` (enum, required)
  Type of information to display. Only `cart` is currently supported.

- [`cart`](https://docs.stripe.com/api/terminal/readers/set_reader_display.md?query=cart) (object, optional)
  Cart details to display on the reader screen, including line items, amounts, and currency.