Commit
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a3a1b05
1
Parent(s):
527d73d
- rabbit_base.py +27 -6
rabbit_base.py
CHANGED
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@@ -1,25 +1,42 @@
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# rabbit_base.py
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from typing import Callable, Dict, List, Optional
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import aio_pika
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-
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from config import settings
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ExchangeResolver = Callable[[str], str] # exchangeName -> exchangeType
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class RabbitBase:
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def __init__(self, exchange_type_resolver: Optional[ExchangeResolver] = None):
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self._conn: Optional[aio_pika.RobustConnection] = None
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self._chan: Optional[aio_pika.RobustChannel] = None
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self._exchanges: Dict[str, aio_pika.Exchange] = {}
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-
self._exchange_type_resolver = (
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-
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)
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async def connect(self) -> None:
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if self._conn and not self._conn.is_closed:
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return
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-
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self._chan = await self._conn.channel()
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await self._chan.set_qos(prefetch_count=settings.RABBIT_PREFETCH)
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@@ -27,7 +44,7 @@ class RabbitBase:
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await self.connect()
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if name in self._exchanges:
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return self._exchanges[name]
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-
ex_type = self._exchange_type_resolver(name)
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ex = await self._chan.declare_exchange(
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name, getattr(aio_pika.ExchangeType, ex_type), durable=True
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)
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@@ -47,7 +64,11 @@ class RabbitBase:
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if ttl_ms:
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args["x-message-ttl"] = ttl_ms
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q = await self._chan.declare_queue(
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queue_name,
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)
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for rk in routing_keys or [""]:
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await q.bind(ex, rk)
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# rabbit_base.py
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from typing import Callable, Dict, List, Optional
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import aio_pika
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from urllib.parse import urlsplit, unquote
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from config import settings
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ExchangeResolver = Callable[[str], str] # exchangeName -> exchangeType
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def _parse_amqp_url(url: str) -> dict:
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"""
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Convert an AMQP URL into kwargs for aio_pika.connect_robust,
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so we don't pass the raw URL (and leak the password in logs).
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"""
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parts = urlsplit(url)
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return {
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"host": parts.hostname or "localhost",
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"port": parts.port or (5671 if parts.scheme == "amqps" else 5672),
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"login": parts.username or "guest",
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"password": parts.password or "guest",
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"virtualhost": unquote(parts.path[1:] or "/"),
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"ssl": parts.scheme == "amqps",
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}
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class RabbitBase:
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def __init__(self, exchange_type_resolver: Optional[ExchangeResolver] = None):
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self._conn: Optional[aio_pika.RobustConnection] = None
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self._chan: Optional[aio_pika.RobustChannel] = None
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self._exchanges: Dict[str, aio_pika.Exchange] = {}
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self._exchange_type_resolver = exchange_type_resolver or (
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lambda _: settings.RABBIT_EXCHANGE_TYPE
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)
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async def connect(self) -> None:
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if self._conn and not self._conn.is_closed:
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return
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conn_kwargs = _parse_amqp_url(str(settings.AMQP_URL))
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self._conn = await aio_pika.connect_robust(**conn_kwargs)
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self._chan = await self._conn.channel()
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await self._chan.set_qos(prefetch_count=settings.RABBIT_PREFETCH)
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await self.connect()
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if name in self._exchanges:
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return self._exchanges[name]
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ex_type = self._exchange_type_resolver(name)
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ex = await self._chan.declare_exchange(
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name, getattr(aio_pika.ExchangeType, ex_type), durable=True
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)
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if ttl_ms:
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args["x-message-ttl"] = ttl_ms
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q = await self._chan.declare_queue(
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queue_name,
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durable=True,
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exclusive=False,
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auto_delete=True,
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arguments=args,
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)
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for rk in routing_keys or [""]:
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await q.bind(ex, rk)
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