# Update a Reader

Updates a `Reader` object by setting the values of the parameters passed. Any parameters not provided will be left unchanged.

## Returns

Returns an updated `Reader` object if a valid identifier was provided.

## Parameters

- `label` (string, optional)
  The new label of the reader.

- `metadata` (object, optional)
  Set of [key-value pairs](https://docs.stripe.com/docs/api/metadata.md) that you can attach to an object. This can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to `metadata`.

```curl
curl https://api.stripe.com/v1/terminal/readers/{{READER_ID}} \
  -u "<<YOUR_SECRET_KEY>>" \
  -d "metadata[order_id]=6735"
```

### Response

```json
{
  "id": "tmr_FDOt2wlRZEdpd7",
  "object": "terminal.reader",
  "action": null,
  "device_sw_version": "2.37.2.0",
  "device_type": "simulated_wisepos_e",
  "ip_address": "0.0.0.0",
  "label": "Blue Rabbit",
  "last_seen_at": 1681320543815,
  "livemode": false,
  "location": "tml_FDOtHwxAAdIJOh",
  "metadata": {
    "order_id": "6735"
  },
  "serial_number": "259cd19c-b902-4730-96a1-09183be6e7f7",
  "status": "online"
}
```