<p>Creates a new Amazon File Cache resource.</p> <p>You can use this operation with a client request token in the request that Amazon File Cache uses to ensure idempotent creation. If a cache with the specified client request token exists and the parameters match, <code>CreateFileCache</code> returns the description of the existing cache. If a cache with the specified client request token exists and the parameters don't match, this call returns <code>IncompatibleParameterError</code>. If a file cache with the specified client request token doesn't exist, <code>CreateFileCache</code> does the following: </p> <ul> <li> <p>Creates a new, empty Amazon File Cache resourcewith an assigned ID, and an initial lifecycle state of <code>CREATING</code>.</p> </li> <li> <p>Returns the description of the cache in JSON format.</p> </li> </ul> <note> <p>The <code>CreateFileCache</code> call returns while the cache's lifecycle state is still <code>CREATING</code>. You can check the cache creation status by calling the <a href="https://docs.aws.amazon.com/fsx/latest/APIReference/API_DescribeFileCaches.html">DescribeFileCaches</a> operation, which returns the cache state along with other information.</p> </note>

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

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