lightning-waitanyinvoice – Command for waiting for payments

SYNOPSIS

waitanyinvoice [lastpay_index] [timeout]

DESCRIPTION

The waitanyinvoice RPC command waits until an invoice is paid, then returns a single entry as per listinvoice. It will not return for any invoices paid prior to or including the lastpay_index.

This is usually called iteratively: once with no arguments, then repeatedly with the returned pay_index entry. This ensures that no paid invoice is missed.

The pay_index is a monotonically-increasing number assigned to an invoice when it gets paid. The first valid pay_index is 1; specifying lastpay_index of 0 equivalent to not specifying a lastpay_index. Negative lastpay_index is invalid.

If timeout is specified, wait at most that number of seconds, which must be an integer. If the specified timeout is reached, this command will return with an error. You can specify this to 0 so that waitanyinvoice will return immediately with an error if no pending invoice is available yet. If unspecified, this command will wait indefinitely.

RETURN VALUE

On success, an object is returned, containing:

  • label (string): unique label supplied at invoice creation
  • description (string): description used in the invoice
  • payment_hash (hex): the hash of the payment_preimage which will prove payment (always 64 characters)
  • status (string): Whether it’s paid or expired (one of “paid”, “expired”)
  • expires_at (u64): UNIX timestamp of when it will become / became unpayable
  • amount_msat (msat, optional): the amount required to pay this invoice
  • bolt11 (string, optional): the BOLT11 string (always present unless bolt12 is)
  • bolt12 (string, optional): the BOLT12 string (always present unless bolt11 is)

If status is “paid”:

  • pay_index (u64): Unique incrementing index for this payment
  • amount_received_msat (msat): the amount actually received (could be slightly greater than amount_msat, since clients may overpay)
  • paid_at (u64): UNIX timestamp of when it was paid
  • payment_preimage (hex): proof of payment (always 64 characters)

Possible errors are:

    The timeout was reached without an invoice being paid.

AUTHOR

Rusty Russell <rusty@rustcorp.com.au> is mainly responsible.

SEE ALSO

lightning-waitinvoice(7), lightning-listinvoice(7), lightning-delinvoice(7), lightning-invoice(7).