Create a NOWPayments invoice and handle the callback
An API key on the way out, a signed and key-sorted JSON payload on the way back. The sorting requirement is the part that trips people.
Tagged “callbacks”
2 entries
2 entries
An API key on the way out, a signed and key-sorted JSON payload on the way back. The sorting requirement is the part that trips people.
A unique index on your own reference turns duplicate callbacks, browser refreshes and manual replays into no-ops instead of free balance.