<p>Enables or updates server-side encryption using an Amazon Web Services KMS key for a specified stream. </p> <p>Starting encryption is an asynchronous operation. Upon receiving the request, Kinesis Data Streams returns immediately and sets the status of the stream to <code>UPDATING</code>. After the update is complete, Kinesis Data Streams sets the status of the stream back to <code>ACTIVE</code>. Updating or applying encryption normally takes a few seconds to complete, but it can take minutes. You can continue to read and write data to your stream while its status is <code>UPDATING</code>. Once the status of the stream is <code>ACTIVE</code>, encryption begins for records written to the stream. </p> <p>API Limits: You can successfully apply a new Amazon Web Services KMS key for server-side encryption 25 times in a rolling 24-hour period.</p> <p>Note: It can take up to 5 seconds after the stream is in an <code>ACTIVE</code> status before all records written to the stream are encrypted. After you enable encryption, you can verify that encryption is applied by inspecting the API response from <code>PutRecord</code> or <code>PutRecords</code>.</p> <note> <p>When invoking this API, it is recommended you use the <code>StreamARN</code> input parameter rather than the <code>StreamName</code> input parameter.</p> </note>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}