X-Idempotency-Key header with a unique key for the specific request. We save the original response for the first request made with a given key. Future requests with the same key return the original response without performing any changes.
The format and how you generate the idempotency key is up to you, however we suggest using UUIDs.
Overview
Idempotency
Safely retrying requests
Nmbr supports idempotency to allow for safely retrying requests without accidentally performing the same operation twice. This approach is useful for issuing requests that you do not want to happen more than once, such as attaching earning line items to a pay stub. You can retry a request with the same idempotency key while guaranteeing that the request is only performed once.
To perform an idempotent request, include an