# Configuration Revision
<a name="configurations-arn-revisions-revision"></a>

Represents a specific revision of an MSK configuration.

## URI
<a name="configurations-arn-revisions-revision-url"></a>

`/v1/configurations/arn/revisions/revision`

## HTTP methods
<a name="configurations-arn-revisions-revision-http-methods"></a>

### GET
<a name="configurations-arn-revisions-revisionget"></a>

**Operation ID:** `DescribeConfigurationRevision`

Returns a description of this revision of the configuration.


**Path parameters**  

| Name | Type | Required | Description | 
| --- |--- |--- |--- |
| revision | String | True | A string that uniquely identifies a revision of an MSK configuration. | 
| arn | String | True | The Amazon Resource Name (ARN) that uniquely identifies an MSK configuration and all of its revisions. | 


**Responses**  

| Status code | Response model | Description | 
| --- |--- |--- |
| 200 |  DescribeConfigurationRevisionResponse | 200 response | 
| 400 | Error | The request isn't valid because the input is incorrect. Correct your input and then submit it again. | 
| 401 | Error | The request is not authorized. The provided credentials couldn't be validated. | 
| 403 | Error | Access forbidden. Check your credentials and then retry your request. | 
| 404 | Error | The resource could not be found due to incorrect input. Correct the input, then retry the request. | 
| 429 | Error | 429 response | 
| 500 | Error | There was an unexpected internal server error. Retrying your request might resolve the issue. | 
| 503 | Error | 503 response | 

### OPTIONS
<a name="configurations-arn-revisions-revisionoptions"></a>

Enable CORS by returning the correct headers. 


**Path parameters**  

| Name | Type | Required | Description | 
| --- |--- |--- |--- |
| revision | String | True | A string that uniquely identifies a revision of an MSK configuration. | 
| arn | String | True | The Amazon Resource Name (ARN) that uniquely identifies an MSK configuration and all of its revisions. | 


**Responses**  

| Status code | Response model | Description | 
| --- |--- |--- |
| 200 | None | Default response for CORS method | 

## Schemas
<a name="configurations-arn-revisions-revision-schemas"></a>

### Response bodies
<a name="configurations-arn-revisions-revision-response-examples"></a>

#### DescribeConfigurationRevisionResponse schema
<a name="configurations-arn-revisions-revision-response-body-describeconfigurationrevisionresponse-example"></a>

```
{
  "creationTime": "string",
  "description": "string",
  "serverProperties": "string",
  "arn": "string",
  "revision": integer
}
```

#### Error schema
<a name="configurations-arn-revisions-revision-response-body-error-example"></a>

```
{
  "message": "string",
  "invalidParameter": "string"
}
```

## Properties
<a name="configurations-arn-revisions-revision-properties"></a>

### DescribeConfigurationRevisionResponse
<a name="configurations-arn-revisions-revision-model-describeconfigurationrevisionresponse"></a>

Response body for DescribeConfigurationRevision.


| Property | Type | Required | Description | 
| --- |--- |--- |--- |
| arn | string | True | The Amazon Resource Name (ARN) of the configuration. | 
| creationTime | string | True | The time when the configuration was created. | 
| description | string | True | The description of the configuration. | 
| revision | integerFormat: int64 | True | The revision number. | 
| serverProperties | string | True | Contents of the `server.properties` file. When using the API, you must ensure that the contents of the file are base64 encoded. When using the console, the SDK, or the CLI, the contents of `server.properties` can be in plaintext. | 

### Error
<a name="configurations-arn-revisions-revision-model-error"></a>

Returns information about an error.


| Property | Type | Required | Description | 
| --- |--- |--- |--- |
| invalidParameter | string | False | The parameter that caused the error. | 
| message | string | False | The description of the error. |