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Add .close coroutine to BfxWebsocketClient and _BfxWebsocketBucket classes.

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This commit is contained in:
Davide Casale
2022-11-22 18:02:19 +01:00
parent 721e82b86d
commit 999766a307
1 changed files with 45 additions and 30 deletions
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71
bfxapi/websocket/BfxWebsocketClient.py
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@@ -44,22 +44,24 @@ class BfxWebsocketClient(object):
await asyncio.gather(*tasks)
async def __connect(self, API_KEY, API_SECRET, filter=None):
async with websockets.connect(self.host) as websocket:
async for websocket in websockets.connect(self.host):
self.websocket = websocket
await self.__authenticate(API_KEY, API_SECRET, filter)
async for message in websocket:
message = json.loads(message)
try:
async for message in websocket:
message = json.loads(message)
if isinstance(message, dict) and message["event"] == "auth":
if message["status"] == "OK":
self.event_emitter.emit("authenticated", message); self.authentication = True
else: raise InvalidAuthenticationCredentials("Cannot authenticate with given API-KEY and API-SECRET.")
elif isinstance(message, dict) and message["event"] == "error":
self.event_emitter.emit("wss-error", message["code"], message["msg"])
elif isinstance(message, list) and (chanId := message[0]) == 0 and message[1] != HEARTBEAT:
self.handler.handle(message[1], message[2])
if isinstance(message, dict) and message["event"] == "auth":
if message["status"] == "OK":
self.event_emitter.emit("authenticated", message); self.authentication = True
else: raise InvalidAuthenticationCredentials("Cannot authenticate with given API-KEY and API-SECRET.")
elif isinstance(message, dict) and message["event"] == "error":
self.event_emitter.emit("wss-error", message["code"], message["msg"])
elif isinstance(message, list) and (chanId := message[0]) == 0 and message[1] != HEARTBEAT:
self.handler.handle(message[1], message[2])
except websockets.ConnectionClosedError: continue
async def __authenticate(self, API_KEY, API_SECRET, filter=None):
data = { "event": "auth", "filter": filter, "apiKey": API_KEY }
@@ -88,6 +90,13 @@ class BfxWebsocketClient(object):
if chanId in bucket.chanIds.keys():
await bucket._unsubscribe(chanId=chanId)
async def close(self, code=1000, reason=str()):
if self.websocket != None and self.websocket.open == True:
await self.websocket.close(code=code, reason=reason)
for bucket in self.buckets:
await bucket.close(code=code, reason=reason)
def __require_websocket_authentication(function):
@_require_websocket_connection
async def wrapper(self, *args, **kwargs):
@@ -131,28 +140,30 @@ class _BfxWebsocketBucket(object):
self.handler = PublicChannelsHandler(event_emitter=self.event_emitter)
async def _connect(self, index):
async with websockets.connect(self.host) as websocket:
async for websocket in websockets.connect(self.host):
self.websocket = websocket
self.__bucket_open_signal(index)
async for message in websocket:
message = json.loads(message)
try:
async for message in websocket:
message = json.loads(message)
if isinstance(message, dict) and message["event"] == "info" and "version" in message:
if BfxWebsocketClient.VERSION != message["version"]:
raise OutdatedClientVersion(f"Mismatch between the client version and the server version. Update the library to the latest version to continue (client version: {BfxWebsocketClient.VERSION}, server version: {message['version']}).")
elif isinstance(message, dict) and message["event"] == "subscribed" and (chanId := message["chanId"]):
self.pendings = [ pending for pending in self.pendings if pending["subId"] != message["subId"] ]
self.chanIds[chanId] = message
self.event_emitter.emit("subscribed", message)
elif isinstance(message, dict) and message["event"] == "unsubscribed" and (chanId := message["chanId"]):
if message["status"] == "OK":
del self.chanIds[chanId]
elif isinstance(message, dict) and message["event"] == "error":
self.event_emitter.emit("wss-error", message["code"], message["msg"])
elif isinstance(message, list) and (chanId := message[0]) and message[1] != HEARTBEAT:
self.handler.handle(self.chanIds[chanId], *message[1:])
if isinstance(message, dict) and message["event"] == "info" and "version" in message:
if BfxWebsocketClient.VERSION != message["version"]:
raise OutdatedClientVersion(f"Mismatch between the client version and the server version. Update the library to the latest version to continue (client version: {BfxWebsocketClient.VERSION}, server version: {message['version']}).")
elif isinstance(message, dict) and message["event"] == "subscribed" and (chanId := message["chanId"]):
self.pendings = [ pending for pending in self.pendings if pending["subId"] != message["subId"] ]
self.chanIds[chanId] = message
self.event_emitter.emit("subscribed", message)
elif isinstance(message, dict) and message["event"] == "unsubscribed" and (chanId := message["chanId"]):
if message["status"] == "OK":
del self.chanIds[chanId]
elif isinstance(message, dict) and message["event"] == "error":
self.event_emitter.emit("wss-error", message["code"], message["msg"])
elif isinstance(message, list) and (chanId := message[0]) and message[1] != HEARTBEAT:
self.handler.handle(self.chanIds[chanId], *message[1:])
except websockets.ConnectionClosedError: continue
@_require_websocket_connection
async def _subscribe(self, channel, subId=None, **kwargs):
@@ -177,3 +188,7 @@ class _BfxWebsocketBucket(object):
"event": "unsubscribe",
"chanId": chanId
}))
@_require_websocket_connection
async def close(self, code=1000, reason=str()):
await self.websocket.close(code=code, reason=reason)