# Custom Headers

In order to make any requests, 2 custom headers must be used in every request header.

* customer_id
* authorized_groups


These values can be obtained from the **API Fact Sheet**.

For most customers, given values would remain constant throughout the usage of Trackonomy Platform.

### Example requests

cURL

```curl
curl 'https://{API_URL}' \
  --header 'Authorization: Bearer TOKEN' \
  --header 'customer_id: 105fae71-a626-0000-9784-example' \
  --header 'authorized_groups: 105fae71-a626-0000-9784-example'
```

JavaScript

```javascript
await fetch('https://{API_URL}', {
  headers: {
    Authorization: 'Bearer TOKEN',
    customer_id: '105fae71-a626-0000-9784-example',
    authorized_groups: '105fae71-a626-0000-9784-example'
  },
});
```