End of support notice: On October 7th, 2026, AWS will discontinue support for AWS IoT Greengrass Version 1. After October 7th, 2026, you will no longer be able to access the AWS IoT Greengrass V1 resources. For more information, please visit [Migrate from AWS IoT Greengrass Version 1](https://docs.aws.amazon.com/greengrass/v2/developerguide/migrate-from-v1.html).

# CreateDeviceDefinitionRequestBody
<a name="parameters-createdevicedefinitionrequestbody"></a>

```
{
"Name": "string",
"InitialVersion": {
  "Devices": [
    {
      "Id": "string",
      "ThingArn": "string",
      "CertificateArn": "string",
      "SyncShadow": true
    }
  ]
},
"tags": {
  "additionalProperty0": "string",
  "additionalProperty1": "string",
  "additionalProperty2": "string"
}
}
```

CreateDeviceDefinitionRequestBody  
Information required to create a device definition.  
in: body  
required: true  


properties  
Name: The name of the device definition. Type: string  
InitialVersion: Information about the initial version of the device definition. Type: DeviceDefinitionVersion  
tags: The tags to attach to the new resource. Type: tags

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS IoT Greengrass. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query greengrass` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).