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).

# /greengrass/groups/GroupId/versions/GroupVersionId


## GET


 `GET /greengrass/groups/GroupId/versions/GroupVersionId`

Operation ID: [GetGroupVersion](getgroupversion-get.md)

Retrieves information about a group version.

Produces: application/json

### Path Parameters


[**GroupId**](parameters-groupidparam.md)  
The ID of the Greengrass group.  
where used: path; required: true  
type: string

[**GroupVersionId**](parameters-groupversionidparam.md)  
The ID of the group version. This value maps to the `Version` property of the corresponding `VersionInformation` object, which is returned by `ListGroupVersions` requests. If the version is the last one that was associated with a group, the value also maps to the `LatestVersion` property of the corresponding `GroupInformation` object.   
where used: path; required: true  
type: string

### CLI


```
aws greengrass get-group-version \
  --group-id <value> \
  --group-version-id <value>  \
  [--cli-input-json <value>] \
  [--generate-cli-skeleton]
```

cli-input-json format:

```
{
"GroupId": "string",
"GroupVersionId": "string"
}
```

### Responses


**200**  
Success.  
 [ GetGroupVersionResponse](definitions-getgroupversionresponse.md)   

```
{
"Arn": "string",
"Id": "string",
"Version": "string",
"CreationTimestamp": "string",
"Definition": {
  "CoreDefinitionVersionArn": "string",
  "DeviceDefinitionVersionArn": "string",
  "FunctionDefinitionVersionArn": "string",
  "SubscriptionDefinitionVersionArn": "string",
  "LoggerDefinitionVersionArn": "string",
  "ResourceDefinitionVersionArn": "string",
  "ConnectorDefinitionVersionArn": "string"
}
}
```  
GetGroupVersionResponse  
Information about a group version.  
type: object  
Arn  
The ARN of the group version.  
type: string  
Id  
The ID of the group that the version is associated with.  
type: string  
Version  
The ID of the group version.  
type: string  
CreationTimestamp  
The time, in milliseconds since the epoch, when the group version was created.  
type: string  
Definition  
Information about a group version.  
type: object  
CoreDefinitionVersionArn  
The ARN of the core definition version for this group.  
type: string  
DeviceDefinitionVersionArn  
The ARN of the client device definition version for this group.  
type: string  
FunctionDefinitionVersionArn  
The ARN of the function definition version for this group.  
type: string  
SubscriptionDefinitionVersionArn  
The ARN of the subscription definition version for this group.  
type: string  
LoggerDefinitionVersionArn  
The ARN of the logger definition version for this group.  
type: string  
ResourceDefinitionVersionArn  
The ARN of the resource definition version for this group.  
type: string  
ConnectorDefinitionVersionArn  
The ARN of the connector definition version for this group.  
type: string

**400**  
Invalid request.  
 [ GeneralError](definitions-generalerror.md)   

```
{
"Message": "string",
"ErrorDetails": [
  {
    "DetailedErrorCode": "string",
    "DetailedErrorMessage": "string"
  }
]
}
```  
GeneralError  
General error information.  
type: object  
required: ["Message"]  
Message  
A message that contains information about the error.  
type: string  
ErrorDetails  
A list of error details.  
type: array  
items: [ErrorDetail](definitions-errordetail.md)  
ErrorDetail  
Details about the error.  
type: object  
DetailedErrorCode  
A detailed error code.  
type: string  
DetailedErrorMessage  
A detailed error message.  
type: string