lnbits-legend/lnbits/wallets/lnbits.py

98 lines
3.4 KiB
Python

import json
import httpx
from os import getenv
from typing import Optional, Dict, AsyncGenerator
from .base import StatusResponse, InvoiceResponse, PaymentResponse, PaymentStatus, Wallet
class LNbitsWallet(Wallet):
"""https://github.com/lnbits/lnbits"""
def __init__(self):
self.endpoint = getenv("LNBITS_ENDPOINT")
key = getenv("LNBITS_KEY") or getenv("LNBITS_ADMIN_KEY") or getenv("LNBITS_INVOICE_KEY")
self.key = {"X-Api-Key": key}
def status(self) -> StatusResponse:
r = httpx.get(url=f"{self.endpoint}/api/v1/wallet", headers=self.key)
try:
data = r.json()
except:
return StatusResponse(f"Failed to connect to {self.endpoint}, got: '{r.text[:200]}...'", 0)
if r.is_error:
return StatusResponse(data["message"], 0)
return StatusResponse(None, data["balance"])
def create_invoice(
self, amount: int, memo: Optional[str] = None, description_hash: Optional[bytes] = None
) -> InvoiceResponse:
data: Dict = {"out": False, "amount": amount}
if description_hash:
data["description_hash"] = description_hash.hex()
else:
data["memo"] = memo or ""
r = httpx.post(
url=f"{self.endpoint}/api/v1/payments",
headers=self.key,
json=data,
)
ok, checking_id, payment_request, error_message = not r.is_error, None, None, None
if r.is_error:
error_message = r.json()["message"]
else:
data = r.json()
checking_id, payment_request = data["checking_id"], data["payment_request"]
return InvoiceResponse(ok, checking_id, payment_request, error_message)
def pay_invoice(self, bolt11: str) -> PaymentResponse:
r = httpx.post(url=f"{self.endpoint}/api/v1/payments", headers=self.key, json={"out": True, "bolt11": bolt11})
ok, checking_id, fee_msat, error_message = not r.is_error, None, 0, None
if r.is_error:
error_message = r.json()["message"]
else:
data = r.json()
checking_id = data["checking_id"]
return PaymentResponse(ok, checking_id, fee_msat, error_message)
def get_invoice_status(self, checking_id: str) -> PaymentStatus:
r = httpx.get(url=f"{self.endpoint}/api/v1/payments/{checking_id}", headers=self.key)
if r.is_error:
return PaymentStatus(None)
return PaymentStatus(r.json()["paid"])
def get_payment_status(self, checking_id: str) -> PaymentStatus:
r = httpx.get(url=f"{self.endpoint}/api/v1/payments/{checking_id}", headers=self.key)
if r.is_error:
return PaymentStatus(None)
return PaymentStatus(r.json()["paid"])
async def paid_invoices_stream(self) -> AsyncGenerator[str, None]:
url = f"{self.endpoint}/api/v1/payments/sse"
async with httpx.AsyncClient(timeout=None, headers=self.key) as client:
async with client.stream("GET", url) as r:
async for line in r.aiter_lines():
if line.startswith("data:"):
try:
data = json.loads(line[5:])
except json.decoder.JSONDecodeError:
continue
if type(data) is not list or len(data) < 9:
continue
yield data[8] # payment_hash