binance: use new `int` sub-id for each request

piker/brokers/binance.py

@@ -26,8 +26,8 @@ from contextlib import (
     aclosing,
 )
 from datetime import datetime
-# from functools import lru_cache
 from decimal import Decimal
+import itertools
 from typing import (
     Any, Union, Optional,
     AsyncGenerator, Callable,
@@ -560,8 +560,6 @@ async def stream_quotes(
     # XXX: required to propagate ``tractor`` loglevel to piker logging
     get_console_log(loglevel or tractor.current_actor().loglevel)
 
-    uid = 0
-
     async with (
         send_chan as send_chan,
     ):
@@ -577,24 +575,31 @@ async def stream_quotes(
                 )
             )
 
+        iter_subids = itertools.count()
+
         @acm
         async def subscribe(ws: NoBsWs):
             # setup subs
 
+            subid: int = next(iter_subids)
+
             # trade data (aka L1)
             # https://binance-docs.github.io/apidocs/spot/en/#symbol-order-book-ticker
-            l1_sub = make_sub(symbols, 'bookTicker', uid)
+            l1_sub = make_sub(symbols, 'bookTicker', subid)
             await ws.send_msg(l1_sub)
 
             # aggregate (each order clear by taker **not** by maker)
             # trades data:
             # https://binance-docs.github.io/apidocs/spot/en/#aggregate-trade-streams
-            agg_trades_sub = make_sub(symbols, 'aggTrade', uid)
+            agg_trades_sub = make_sub(symbols, 'aggTrade', subid)
             await ws.send_msg(agg_trades_sub)
 
-            # ack from ws server
+            # might get ack from ws server, or maybe some
+            # other msg still in transit..
             res = await ws.recv_msg()
-            assert res['id'] == uid
+            subid: str | None = res.get('id')
+            if subid:
+                assert res['id'] == subid
 
             yield
 
@@ -608,7 +613,7 @@ async def stream_quotes(
                 await ws.send_msg({
                     "method": "UNSUBSCRIBE",
                     "params": subs,
-                    "id": uid,
+                    "id": subid,
                 })
 
                 # XXX: do we need to ack the unsub?