SDK method reference

HAIPClient sends canonical JSON, follows no redirects and uses a 15-second request timeout. Successful responses are decoded with the protocol JSON parser. Non-success HTTP responses raise HAIPError; transport or decoding errors can be ordinary errors.

Method	Result and requirements
`create(input, key)`	Accepted `RequestStatus`; provide a stable creation key.
`status(id)`	Current scoped `RequestStatus`.
`cancel(id, key)`	Updated status after an authorised cancellation.
`events(after = 0)`	Signed event `items` and the next cursor. Persist processing before advancing.
`audit(id)`	Retained request evidence and response material, subject to access and retention.
`claim(id, input, key)`	Signed exclusive execution claim for the supplied stable identity and binding.
`admission(id, claim)`	Signed fresh admission, nonce and local wall/monotonic timing observations.
`outcome(id, input, key)`	Signed outcome record. Reporting must not repeat an effect.
`request(path, body?, key?)`	Low-level access limited to `/v2/` and `/.well-known/` paths; normal server authorisation still applies.

verifyRecord authenticates an original signed record against independently supplied trust and expected identity. It is not a substitute for the complete execution verifier.

const page = await client.events(savedCursor);
await persistEvents(page.items); // Your durable consumer implementation.
await saveCursor(page.next);

The consumer functions are application responsibilities, not SDK exports. Re-fetch request status when acting on an event; never launch work solely because an event says it was authorised. Only create, cancel, claim and outcome take explicit idempotency keys in these convenience methods. admission generates a fresh nonce for each check and does not extend the original dispatch deadline.

HAIP 2 draft

Protocol

Reference service

TypeScript SDK

Command line

Local examples

Unsupported HAIP 1 archive