<p>Adds or overwrites one or more tags for the specified AppStream 2.0 resource. You can tag AppStream 2.0 image builders, images, fleets, and stacks.</p> <p>Each tag consists of a key and an optional value. If a resource already has a tag with the same key, this operation updates its value.</p> <p>To list the current tags for your resources, use <a>ListTagsForResource</a>. To disassociate tags from your resources, use <a>UntagResource</a>.</p> <p>For more information about tags, see <a href="https://docs.aws.amazon.com/appstream2/latest/developerguide/tagging-basic.html">Tagging Your Resources</a> in the <i>Amazon AppStream 2.0 Administration Guide</i>.</p>

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

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