/merchants/search
requests. You can populate possible results you show to the user from the results you get from our endpoint.heron_id
of that merchant as the whitelisted merchant for that card.merchants/extract
request. This endpoint is optimized for very low latency of 200ms-500ms as part of an auth flow, and only accepts a single transaction.heron_id
you receive back in the response matches the heron_id
that the card was locked to in step 2.