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add service

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This commit is contained in:
dni
2026-07-13 09:09:42 +02:00
parent 3f28d7a31a
commit 4dc2c779a2
3 changed files with 119 additions and 68 deletions
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lnbits/core/services/__init__.py
+12
View File
@@ -1,3 +1,10 @@
from .blockexplorer import (
fetch_fee_estimates,
fetch_onchain_balance,
fetch_recent_blocks,
fetch_tip,
fetch_transaction,
)
from .fiat_providers import check_fiat_status
from .funding_source import (
get_balance_delta,
@@ -56,7 +63,12 @@ __all__ = [
"enqueue_admin_notification",
"fee_reserve",
"fee_reserve_total",
"fetch_fee_estimates",
"fetch_lnurl_pay_request",
"fetch_onchain_balance",
"fetch_recent_blocks",
"fetch_tip",
"fetch_transaction",
"get_balance_delta",
"get_payments_daily_stats",
"get_pr_from_lnurl",
lnbits/core/services/blockexplorer.py
+92
View File
@@ -0,0 +1,92 @@
import asyncio
from lnbits.settings import settings
from lnbits.task_manager import OnchainAddressEvent
from lnbits.utils.electrum import (
AddressResponse,
Balance,
BlockHeader,
BlockInfo,
ElectrumClient,
FeeResponse,
Transaction,
network_from_name,
parse_block_header,
parse_raw_tx,
scripthash_from_address,
)
def _client() -> ElectrumClient:
return ElectrumClient(
settings.lnbits_blockexplorer_electrum_url,
network=network_from_name(settings.lnbits_blockexplorer_network),
)
async def fetch_recent_blocks(count: int = 5) -> list[BlockInfo]:
async with _client() as c:
tip = await c.get_tip()
start = max(0, tip.height - count + 1)
headers = await c.get_block_headers(start, tip.height - start + 1)
raw = bytes.fromhex(headers.hex)
blocks = [
parse_block_header(raw[i * 80 : (i + 1) * 80].hex(), start + i)
for i in range(headers.count)
]
return list(reversed(blocks))
async def fetch_tip() -> BlockHeader:
async with _client() as c:
return await c.get_tip()
async def fetch_fee_estimates() -> FeeResponse:
async with _client() as c:
estimates_raw = await asyncio.gather(
c.estimate_fee(1),
c.estimate_fee(3),
c.estimate_fee(6),
c.estimate_fee(144),
)
histogram = await c.fee_histogram()
estimates = {
str(blocks): fee
for blocks, fee in zip([1, 3, 6, 144], estimates_raw, strict=False)
if fee >= 0
}
return FeeResponse(estimates=estimates, histogram=histogram)
async def fetch_transaction(txid: str) -> Transaction:
async with _client() as c:
raw_hex = await c.get_transaction(txid)
return parse_raw_tx(raw_hex, network=c.network)
async def fetch_onchain_balance(onchain_address: str) -> AddressResponse:
scripthash = scripthash_from_address(onchain_address)
async with _client() as client:
balance_res, history_res = await asyncio.gather(
client.get_balance(scripthash),
client.get_history(scripthash),
return_exceptions=True,
)
if isinstance(balance_res, BaseException):
raise balance_res
history = [] if isinstance(history_res, BaseException) else history_res
history_error = (
str(history_res) if isinstance(history_res, BaseException) else None
)
return AddressResponse(
balance=balance_res, history=history, history_error=history_error
)
def address_event_to_response(event: OnchainAddressEvent) -> AddressResponse:
return AddressResponse(
balance=Balance(confirmed=event.confirmed, unconfirmed=event.unconfirmed),
history=event.history,
history_error=event.history_error,
)
lnbits/core/views/blockexplorer_api.py
+15 -68
View File
@@ -5,6 +5,14 @@ from typing import Annotated
from fastapi import APIRouter, Depends, HTTPException, Request, WebSocket
from pydantic.types import UUID4
from lnbits.core.services.blockexplorer import (
address_event_to_response,
fetch_fee_estimates,
fetch_onchain_balance,
fetch_recent_blocks,
fetch_tip,
fetch_transaction,
)
from lnbits.decorators import check_access_token, check_user_exists
from lnbits.settings import settings
from lnbits.task_manager import (
@@ -15,16 +23,11 @@ from lnbits.task_manager import (
)
from lnbits.utils.electrum import (
AddressResponse,
Balance,
BlockHeader,
BlockInfo,
ElectrumClient,
ElectrumError,
FeeResponse,
Transaction,
network_from_name,
parse_block_header,
parse_raw_tx,
scripthash_from_address,
)
@@ -52,29 +55,13 @@ async def _check_api_access(
await check_user_exists(r, access_token, usr)
def _client() -> ElectrumClient:
return ElectrumClient(
settings.lnbits_blockexplorer_electrum_url,
network=network_from_name(settings.lnbits_blockexplorer_network),
)
# ---- REST ----
@blockexplorer_router.get("/blocks", dependencies=[Depends(_check_api_access)])
async def api_blocks() -> list[BlockInfo]:
try:
async with _client() as c:
tip = await c.get_tip()
start = max(0, tip.height - 4)
headers = await c.get_block_headers(start, tip.height - start + 1)
raw = bytes.fromhex(headers.hex)
blocks = [
parse_block_header(raw[i * 80 : (i + 1) * 80].hex(), start + i)
for i in range(headers.count)
]
return list(reversed(blocks))
return await fetch_recent_blocks()
except ElectrumError as e:
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(e)) from e
@@ -82,8 +69,7 @@ async def api_blocks() -> list[BlockInfo]:
@blockexplorer_router.get("/tip", dependencies=[Depends(_check_api_access)])
async def api_tip() -> BlockHeader:
try:
async with _client() as c:
return await c.get_tip()
return await fetch_tip()
except ElectrumError as e:
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(e)) from e
@@ -91,20 +77,7 @@ async def api_tip() -> BlockHeader:
@blockexplorer_router.get("/fees", dependencies=[Depends(_check_api_access)])
async def api_fees() -> FeeResponse:
try:
async with _client() as c:
estimates_raw = await asyncio.gather(
c.estimate_fee(1),
c.estimate_fee(3),
c.estimate_fee(6),
c.estimate_fee(144),
)
histogram = await c.fee_histogram()
estimates = {
str(blocks): fee
for blocks, fee in zip([1, 3, 6, 144], estimates_raw, strict=False)
if fee >= 0
}
return FeeResponse(estimates=estimates, histogram=histogram)
return await fetch_fee_estimates()
except ElectrumError as e:
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(e)) from e
@@ -112,9 +85,7 @@ async def api_fees() -> FeeResponse:
@blockexplorer_router.get("/tx/{txid}", dependencies=[Depends(_check_api_access)])
async def api_tx(txid: str) -> Transaction:
try:
async with _client() as c:
raw_hex = await c.get_transaction(txid)
return parse_raw_tx(raw_hex, network=c.network)
return await fetch_transaction(txid)
except ElectrumError as e:
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(e)) from e
@@ -124,27 +95,11 @@ async def api_tx(txid: str) -> Transaction:
)
async def api_address(address: str) -> AddressResponse:
try:
scripthash = scripthash_from_address(address)
scripthash_from_address(address)
except ValueError as e:
raise HTTPException(HTTPStatus.BAD_REQUEST, detail=str(e)) from e
try:
async with _client() as c:
balance_res, history_res = await asyncio.gather(
c.get_balance(scripthash),
c.get_history(scripthash),
return_exceptions=True,
)
if isinstance(balance_res, BaseException):
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(balance_res))
history = [] if isinstance(history_res, BaseException) else history_res
history_error = (
str(history_res) if isinstance(history_res, BaseException) else None
)
return AddressResponse(
balance=balance_res, history=history, history_error=history_error
)
except HTTPException:
raise
return await fetch_onchain_balance(address)
except ElectrumError as e:
raise HTTPException(HTTPStatus.SERVICE_UNAVAILABLE, detail=str(e)) from e
@@ -167,14 +122,6 @@ async def ws_blocks(websocket: WebSocket) -> None:
task_manager.unregister_ws_block_queue(queue)
def _address_event_to_response(event: OnchainAddressEvent) -> AddressResponse:
return AddressResponse(
balance=Balance(confirmed=event.confirmed, unconfirmed=event.unconfirmed),
history=event.history,
history_error=event.history_error,
)
@blockexplorer_router.websocket("/ws/address/{address}")
async def ws_address(websocket: WebSocket, address: str) -> None:
if not settings.lnbits_blockexplorer_enabled:
@@ -189,7 +136,7 @@ async def ws_address(websocket: WebSocket, address: str) -> None:
await websocket.close(code=1008, reason=str(e))
return
try:
await relay_ws_queue(websocket, queue, serialize=_address_event_to_response)
await relay_ws_queue(websocket, queue, serialize=address_event_to_response)
finally:
task_manager.unregister_ws_address_queue(address, queue)