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feat: back off pending payment polling

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This commit is contained in:
Riccardo Balbo 2026-08-26 16:15:51 +02:00
commit e9d3c48aec
2 changed files with 16 additions and 8 deletions
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11
tasks.py
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@ -34,7 +34,9 @@ from .paranoia import (
)
from .permission import nwc_permissions
PAYMENT_STATUS_POLL_INTERVAL_SECONDS = 1.0
PAYMENT_STATUS_POLL_INITIAL_INTERVAL_SECONDS = 1.0
PAYMENT_STATUS_POLL_MAX_INTERVAL_SECONDS = 60.0
PAYMENT_STATUS_POLL_BACKOFF_MULTIPLIER = 2.0
async def _check(nwc: NWCKey | None, method: str) -> dict | None:
@ -112,6 +114,7 @@ async def _process_invoice(
True # currently required by nip 47 specs, might change in future
)
payment_status: PaymentStatus | None = None
poll_interval = PAYMENT_STATUS_POLL_INITIAL_INTERVAL_SECONDS
while wait_for_preimage:
payment_status = await check_transaction_status(wallet_id, payment_hash)
if payment_status.success:
@ -124,7 +127,11 @@ async def _process_invoice(
},
"in_budget": in_budget,
}
await asyncio.sleep(PAYMENT_STATUS_POLL_INTERVAL_SECONDS)
await asyncio.sleep(poll_interval)
poll_interval = min(
poll_interval * PAYMENT_STATUS_POLL_BACKOFF_MULTIPLIER,
PAYMENT_STATUS_POLL_MAX_INTERVAL_SECONDS,
)
if not payment_status:
raise Exception("Payment status not found")
return {