def create_channel(config: "Config") -> "Channel":
"""
Create a :class:`Channel` for the specified configuration.
"""
u = urlparse(config.url.url)
options = [
("grpc.max_send_message_length", -1),
("grpc.max_receive_message_length", -1),
]
if not config.url.use_http_proxy:
options.append(("grpc.enable_http_proxy", 0))
if (u.scheme in ("https", "grpcs")) or config.ssl:
credentials = ssl_channel_credentials(
root_certificates=config.ssl.ca,
private_key=config.ssl.cert_key,
certificate_chain=config.ssl.cert,
)
if config.access.token:
credentials = composite_channel_credentials(
credentials, metadata_call_credentials(GrpcAuth(config))
)
return secure_channel(u.netloc, credentials, options)
else:
return insecure_channel(u.netloc, options)
def create_channel(config: "Config") -> "Channel":
"""
Create a :class:`Channel` for the specified configuration.
"""
u = urlparse(config.url.url)
options = [
("grpc.max_send_message_length", -1),
("grpc.max_receive_message_length", -1),
]
if not config.url.use_http_proxy:
options.append(("grpc.enable_http_proxy", 0))
if (u.scheme in ("https", "grpcs")) or config.ssl:
credentials = ssl_channel_credentials(
root_certificates=config.ssl.ca,
private_key=config.ssl.cert_key,
certificate_chain=config.ssl.cert,
)
if config.access.token:
# The grpc Credential objects do not actually define a formal interface, and are
# used interchangeably in the code.
#
# Additionally there are some incorrect rules in the grpc-stubs typing rules that force
# us to work around the type system.
credentials = cast(
ChannelCredentials,
composite_channel_credentials(
credentials, metadata_call_credentials(GrpcAuth(config))),
)
return secure_channel(u.netloc, credentials, options)
else:
return insecure_channel(u.netloc, options)
async def fetching(kwargs):
self.http_host_port = os.environ['HTTP_GRPC_PORT']
self.headers = kwargs["headers"]
self.method = kwargs["method"]
self.body = kwargs["body"]
self.proxy = kwargs["proxy"]
self.url = kwargs["url"]
self.clientHello = kwargs["clientHello"]
self.httpClientID = kwargs["httpClientID"]
channel = aio.insecure_channel('http:' + self.http_host_port)
await channel.channel_ready()
stub = http_pb2_grpc.HttpClientStub(channel)
reply = await stub.GetURL(
http_pb2.Request(url=self.url,
proxy=self.proxy,
headers=self.headers,
method=self.method,
body=self.body,
clientHello=self.clientHello,
httpClientID=self.httpClientID))
await channel.close()
if reply.error == "":
return (reply.status, reply.headers, reply.body)
else:
return reply.error
async def model_repository_service_stub(
grpc_server, grpc_settings: Settings
) -> AsyncGenerator[ModelRepositoryServiceStub, None]:
async with aio.insecure_channel(
f"{grpc_settings.host}:{grpc_settings.grpc_port}"
) as channel:
yield ModelRepositoryServiceStub(channel)
async def inference_service_stub(
grpc_server, grpc_settings: Settings
) -> AsyncGenerator[GRPCInferenceServiceStub, None]:
async with aio.insecure_channel(
f"{grpc_settings.host}:{grpc_settings.grpc_port}"
) as channel:
yield GRPCInferenceServiceStub(channel)
async def client_async(server):
address = f"{server}:50051"
async with aio.insecure_channel(address) as channel:
stub = helloworld_pb2_grpc.GreeterStub(channel)
request = helloworld_pb2.HelloRequest(name='you')
for i in range(REQUEST_COUNT):
response = await stub.SayHello(request)
return response
async def client_async():
address = f"{os.environ['SERVER']}:50051"
async with aio.insecure_channel(address) as channel:
stub = helloworld_pb2_grpc.GreeterStub(channel)
request = helloworld_pb2.HelloRequest(name='you')
for i in range(1000):
response = await stub.SayHello(request)
print(f"Client received: {response}")
async def run():
# NOTE(gRPC Python Team): .close() is possible on a channel and should be
# used in circumstances in which the with statement does not fit the needs
# of the code.
async with aio.insecure_channel('localhost:50051') as channel:
stub = helloworld_pb2_grpc.GreeterStub(channel)
response = await stub.SayHello(helloworld_pb2.HelloRequest(name='you'))
print("Greeter client received: " + response.message)
async def setUp(self):
# Create async server
self._server = aio.server(options=(('grpc.so_reuseport', 0), ))
self._adhoc_handlers = AdhocGenericHandler()
self._server.add_generic_rpc_handlers((self._adhoc_handlers, ))
port = self._server.add_insecure_port('[::]:0')
address = 'localhost:%d' % port
await self._server.start()
# Create async channel
self._channel = aio.insecure_channel(address)
def _start_in_process(self):
grpc_aio.init_grpc_aio()
app = web.Application()
methods = self._getMethods()
# connect to product server
grpc_channel = grpc_aio.insecure_channel("localhost:50050")
aio_stub = self._get_stub_class()(grpc_channel)
routes = []
for method in methods:
stub_method = getattr(aio_stub, method.name)
# construct a partial handler.
handler = partial(self._handle_post_unary_unary,
aio_stub_method=stub_method, request_type=method.request_cls)
routes.append(web.post(method.url, handler))
print(stub_method)
app.add_routes(routes)
self._app = app
web.run_app(app, host="127.0.0.1", port=65000)
async def connect(self) -> None:
self.channel = insecure_channel(
self.broker,
options=[
("grpc.max_send_message_length",
config.liftbridge.max_message_size),
("grpc.max_receive_message_length",
config.liftbridge.max_message_size),
("grpc.enable_http_proxy",
config.liftbridge.enable_http_proxy),
],
)
while True:
logger.debug("[%s] Connecting", self.broker)
try:
await self.wait_for_channel_ready()
except ErrorUnavailable as e:
logger.debug("[%s] Failed to connect: %s", self.broker, e)
await asyncio.sleep(1)
continue
logger.debug("[%s] Channel is ready", self.broker)
self.stub = APIStub(self.channel)
return
async def test_aio_from_grpc(self):
from grpc import aio # pylint: disable=wrong-import-position
channel = aio.insecure_channel('dummy')
self.assertIsInstance(channel, aio.Channel)
