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/definition/loggers/LoggerDefinitionId/versions


## POST


 `POST /greengrass/definition/loggers/LoggerDefinitionId/versions`

Operation ID: [CreateLoggerDefinitionVersion](createloggerdefinitionversion-post.md)

Creates a version of a logger definition that has already been defined.

Produces: application/json

### Body Parameters


[**CreateLoggerDefinitionVersionRequestBody**](parameters-createloggerdefinitionversionrequestbody.md)  
  
where used: body; required: true  

```
{
"Loggers": [
  {
    "Id": "string",
    "Type": "FileSystem|AWSCloudWatch",
    "Component": "GreengrassSystem|Lambda",
    "Level": "DEBUG|INFO|WARN|ERROR|FATAL",
    "Space": 0
  }
]
}
```  
LoggerDefinitionVersion  
Information about a logger definition version.  
type: object  
Loggers  
A list of loggers.  
type: array  
items: [Logger](definitions-logger.md)  
Logger  
Information about a logger  
type: object  
required: ["Id", "Type", "Component", "Level"]  
Id  
A descriptive or arbitrary ID for the logger. This value must be unique within the logger definition version. Maximum length is 128 characters with the pattern `[a‑zA‑Z0‑9:_‑]+`.  
type: string  
Type  
type: string  
enum: ["FileSystem", "AWSCloudWatch"]  
Component  
type: string  
enum: ["GreengrassSystem", "Lambda"]  
Level  
type: string  
enum: ["DEBUG", "INFO", "WARN", "ERROR", "FATAL"]  
Space  
The amount of file space, in KB, to use if the local file system is used for logging purposes.  
type: integer

### Header Parameters


[**X-Amzn-Client-Token**](parameters-clienttoken.md)  
A client token used to correlate requests and responses.  
where used: header; required: false  
type: string

### Path Parameters


[**LoggerDefinitionId**](parameters-loggerdefinitionidparam.md)  
The ID of the logger definition.  
where used: path; required: true  
type: string

### CLI


```
aws greengrass create-logger-definition-version \
  --logger-definition-id <value> \
  [--loggers <value>] \
  [--amzn-client-token <value>]  \
  [--cli-input-json <value>] \
  [--generate-cli-skeleton]
```

cli-input-json format:

```
{
"LoggerDefinitionId": "string",
"Loggers": [
  {
    "Id": "string",
    "Type": "FileSystem|AWSCloudWatch",
    "Component": "GreengrassSystem|Lambda",
    "Level": "DEBUG|INFO|WARN|ERROR|FATAL",
    "Space": "integer"
  }
],
"AmznClientToken": "string"
}
```

### Responses


**200** (CreateLoggerDefinitionVersionResponse)  
  
 [ VersionInformation](definitions-versioninformation.md)   

```
{
"Arn": "string",
"Id": "string",
"Version": "string",
"CreationTimestamp": "string"
}
```  
VersionInformation  
Information about a version.  
type: object  
Arn  
The ARN of the version.  
type: string  
Id  
The ID of the parent definition that the version is associated with.  
type: string  
Version  
The ID of the version.  
type: string  
CreationTimestamp  
The time, in milliseconds since the epoch, when the version was created.  
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

## GET


 `GET /greengrass/definition/loggers/LoggerDefinitionId/versions`

Operation ID: [ListLoggerDefinitionVersions](listloggerdefinitionversions-get.md)

Lists the versions of a logger definition.

Produces: application/json

### Path Parameters


[**LoggerDefinitionId**](parameters-loggerdefinitionidparam.md)  
The ID of the logger definition.  
where used: path; required: true  
type: string

### Query Parameters


[**NextToken**](parameters-nexttokenparam.md)  
The token for the next set of results, or `null` if there are no more results.  
where used: query; required: false  
type: string

[**MaxResults**](parameters-maxresultsparam.md)  
The maximum number of results to be returned per request.  
where used: query; required: false  
type: integer

### CLI


```
aws greengrass list-logger-definition-versions \
  --logger-definition-id <value> \
  [--next-token <value>] \
  [--max-results <value>]  \
  [--cli-input-json <value>] \
  [--generate-cli-skeleton]
```

cli-input-json format:

```
{
"LoggerDefinitionId": "string",
"NextToken": "string",
"MaxResults": "integer"
}
```

### Responses


**200** (ListLoggerDefinitionVersionsResponse)  
  
 [ ListVersionsResponse](definitions-listversionsresponse.md)   

```
{
"Versions": [
  {
    "Arn": "string",
    "Id": "string",
    "Version": "string",
    "CreationTimestamp": "string"
  }
],
"NextToken": "string"
}
```  
ListVersionsResponse  
A list of versions.  
type: object  
Versions  
Information about a version.  
type: array  
items: [VersionInformation](definitions-versioninformation.md)  
VersionInformation  
Information about a version.  
type: object  
Arn  
The ARN of the version.  
type: string  
Id  
The ID of the parent definition that the version is associated with.  
type: string  
Version  
The ID of the version.  
type: string  
CreationTimestamp  
The time, in milliseconds since the epoch, when the version was created.  
type: string  
NextToken  
The token for the next set of results, or `null` if there are no more results.  
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