# CfnSubscriptionDefinitionPropsMixin

The `AWS::Greengrass::SubscriptionDefinition` resource represents a subscription definition for AWS IoT Greengrass .

Subscription definitions are used to organize your subscription definition versions.

Subscription definitions can reference multiple subscription definition versions. All subscription definition versions must be associated with a subscription definition. Each subscription definition version can contain one or more subscriptions.

> When you create a subscription definition, you can optionally include an initial subscription definition version. To associate a subscription definition version later, create an [`AWS::Greengrass::SubscriptionDefinitionVersion`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-subscriptiondefinitionversion.html) resource and specify the ID of this subscription definition.
>
> After you create the subscription definition version that contains the subscriptions you want to deploy, you must add it to your group version. For more information, see [`AWS::Greengrass::Group`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-group.html) .

Extends: Mixin › CfnSubscriptionDefinitionPropsMixin
Implements: IMixin

- CloudFormation: [`AWS::Greengrass::SubscriptionDefinition`](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-greengrass-subscriptiondefinition.html)
- Source: Generated code
- Type last changed: v2.269.0 · 16 Sep 2026

## Initializer

```ts
new CfnSubscriptionDefinitionPropsMixin(props: CfnSubscriptionDefinitionMixinProps, options?: CfnPropertyMixinOptions)
```

## Methods

- `applyTo(construct: IConstruct): void` — Apply the mixin properties to the construct.

- `isMixin(x: any): boolean` (static) — Checks if `x` is a Mixin.

  **Parameters**

  - `x` — Any object.

  **Returns:** true if `x` is an object created from a class which extends `Mixin`.

- `supports(construct: IConstruct): boolean` — Check if this mixin supports the given construct.