lnbits-legend/lnbits/wallets/lntxbot.py

84 lines
3.0 KiB
Python

import trio # type: ignore
from os import getenv
from typing import Optional, Dict, AsyncGenerator
from requests import post
from .base import InvoiceResponse, PaymentResponse, PaymentStatus, Wallet
class LntxbotWallet(Wallet):
"""https://github.com/fiatjaf/lntxbot/blob/master/api.go"""
def __init__(self):
endpoint = getenv("LNTXBOT_API_ENDPOINT")
self.endpoint = endpoint[:-1] if endpoint.endswith("/") else endpoint
self.auth_admin = {"Authorization": f"Basic {getenv('LNTXBOT_ADMIN_KEY')}"}
self.auth_invoice = {"Authorization": f"Basic {getenv('LNTXBOT_INVOICE_KEY')}"}
def create_invoice(
self, amount: int, memo: Optional[str] = None, description_hash: Optional[bytes] = None
) -> InvoiceResponse:
data: Dict = {"amt": str(amount)}
if description_hash:
data["description_hash"] = description_hash.hex()
else:
data["memo"] = memo or ""
r = post(
url=f"{self.endpoint}/addinvoice",
headers=self.auth_invoice,
json=data,
)
ok, checking_id, payment_request, error_message = r.ok, None, None, None
if r.ok:
data = r.json()
checking_id, payment_request = data["payment_hash"], data["pay_req"]
if "error" in data and data["error"]:
ok = False
error_message = data["message"]
return InvoiceResponse(ok, checking_id, payment_request, error_message)
def pay_invoice(self, bolt11: str) -> PaymentResponse:
r = post(url=f"{self.endpoint}/payinvoice", headers=self.auth_admin, json={"invoice": bolt11})
ok, checking_id, fee_msat, error_message = r.ok, None, 0, None
if r.ok:
data = r.json()
if "payment_hash" in data:
checking_id, fee_msat = data["decoded"]["payment_hash"], data["fee_msat"]
elif "error" in data and data["error"]:
ok, error_message = False, data["message"]
return PaymentResponse(ok, checking_id, fee_msat, error_message)
def get_invoice_status(self, checking_id: str) -> PaymentStatus:
r = post(url=f"{self.endpoint}/invoicestatus/{checking_id}?wait=false", headers=self.auth_invoice)
if not r.ok or "error" in r.json():
return PaymentStatus(None)
data = r.json()
if "preimage" not in data:
return PaymentStatus(False)
return PaymentStatus(True)
def get_payment_status(self, checking_id: str) -> PaymentStatus:
r = post(url=f"{self.endpoint}/paymentstatus/{checking_id}", headers=self.auth_invoice)
if not r.ok or "error" in r.json():
return PaymentStatus(None)
statuses = {"complete": True, "failed": False, "pending": None, "unknown": None}
return PaymentStatus(statuses[r.json().get("status", "unknown")])
async def paid_invoices_stream(self) -> AsyncGenerator[str, None]:
print("lntxbot does not support paid invoices stream yet")
await trio.sleep(5)
yield ""