> For the complete documentation index, see [llms.txt](https://niagads.gitbook.io/vcpa/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://niagads.gitbook.io/vcpa/step-5-configure-your-samples-information-in-the-tracking-database/5.4-input-pcr-protocol-information-into-the-tracking-database.md).

# 5.4 Input PCR protocol information into the tracking database

**VCPA will process the sequencing data differently, dependent on whether they are generated using the PCR free or non-PCR free protocol. Users will therefore need to input this information into the "isPCR\_free" column of the tracking database.**

Users can type the following command:

```
curl -sS "http://IP/v1/sample/set-attr/isPCR_free/${project_id}/${sample_name}/${0|1}"
```

<mark style="color:blue;">`GET`</mark> `http://IP/v1/sample/set-attr/isPCR_free/${project_id}/${sample_name}/${0|1}`

Add is the value of PCR free or non-PCR free.

#### Path Parameters

| Name         | Type    | Description                                                                                |
| ------------ | ------- | ------------------------------------------------------------------------------------------ |
| project\_id  | string  | This is the project ID outputted by Section 3.2.                                           |
| sample\_name | string  | Sample name information.                                                                   |
| value        | boolean | Enters 1 if the sample is generated using a "PCR free protocol", otherwise, type "0" here. |

{% tabs %}
{% tab title="200 " %}

```javascript
{
    "status":"success",
    "id":"4"
}
```

{% endtab %}
{% endtabs %}