IDs

{
  "id": "3d691e6e71b4487198dca66e1bebe5f0",
  ...
}

Most resource IDs are generated with UUID version 4 and are represented without the hyphens, making them a string of 32 hexadecimal characters long. However, some ids use other string formats — for example webhook event ids (e.g. "1"), authorization ids (e.g. "auth_001") and requirement ids (e.g. "document_id_back"). Always treat ids as opaque strings and do not assume a fixed length or format.