> **Experimental**
>
> `@aws-cdk/aws-iot-actions-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# HttpActionHeader

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/https-action.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-iot-actions-alpha/lib/https-action.ts#L19)

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as iot_actions_alpha from '@aws-cdk/aws-iot-actions-alpha';
const httpActionHeader: iot_actions_alpha.HttpActionHeader = {
  key: 'key',
  value: 'value',
};
```

## Properties

- `key`: string (required) — The HTTP header key.

- `value`: string (required) — The HTTP header value.

  Substitution templates are supported.