# CfnDeviceDefinitionProps

Properties for defining a `CfnDeviceDefinition`.

Extends: CfnDeviceDefinitionProps
Used as props by: CfnDeviceDefinition

- Source: Generated code

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_greengrass as greengrass } from 'aws-cdk-lib';

declare const tags: any;
const cfnDeviceDefinitionProps: greengrass.CfnDeviceDefinitionProps = {
  name: 'name',

  // the properties below are optional
  initialVersion: {
    devices: [{
      certificateArn: 'certificateArn',
      id: 'id',
      thingArn: 'thingArn',

      // the properties below are optional
      syncShadow: false,
    }],
  },
  tags: tags,
};
```

## Properties

- `initialVersion`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnDeviceDefinition.DeviceDefinitionVersionProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_greengrass.CfnDeviceDefinition.DeviceDefinitionVersionProperty.html) — The device definition version to include when the device definition is created.

  A device definition version contains a list of [`device`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-devicedefinition-device.html) property types.

  > To associate a device definition version after the device definition is created, create an [`AWS::Greengrass::DeviceDefinitionVersion`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-devicedefinitionversion.html) resource and specify the ID of this device definition.

- `name`: string (required) — The name of the device definition.

- `tags`: any — Application-specific metadata to attach to the device definition.

  You can use tags in IAM policies to control access to AWS IoT Greengrass resources. You can also use tags to categorize your resources. For more information, see [Tagging Your AWS IoT Greengrass Resources](https://docs.aws.amazon.com/greengrass/v1/developerguide/tagging.html) in the *Developer Guide* .

  This `Json` property type is processed as a map of key-value pairs. It uses the following format, which is different from most `Tags` implementations in CloudFormation templates.

  ```json
  "Tags": { "KeyName0": "value", "KeyName1": "value", "KeyName2": "value"
  }
  ```