def __init__(self,
address: Optional[str] = None,
tracer: Optional[Tracer] = None):
"""Connects to Dapr Runtime and initialize gRPC client stub.
Args:
address (str, optional): Dapr Runtime gRPC endpoint address.
"""
if not address:
address = f"{settings.DAPR_RUNTIME_HOST}:{settings.DAPR_GRPC_PORT}"
self._address = address
self._channel = grpc.insecure_channel(address) # type: ignore
if settings.DAPR_API_TOKEN:
api_token_interceptor = DaprClientInterceptor([
('dapr-api-token', settings.DAPR_API_TOKEN),
])
self._channel = grpc.intercept_channel( # type: ignore
self._channel, api_token_interceptor)
if tracer:
self._channel = grpc.intercept_channel( # type: ignore
self._channel,
client_interceptor.OpenCensusClientInterceptor(tracer=tracer))
self._stub = api_service_v1.DaprStub(self._channel)
def __init__(self,
address: Optional[str] = None,
interceptors: Optional[List[Union[
UnaryUnaryClientInterceptor, UnaryStreamClientInterceptor,
StreamUnaryClientInterceptor,
StreamStreamClientInterceptor]]] = None):
"""Connects to Dapr Runtime and initialize gRPC client stub.
Args:
address (str, optional): Dapr Runtime gRPC endpoint address.
interceptors (list of UnaryUnaryClientInterceptor or
UnaryStreamClientInterceptor or
StreamUnaryClientInterceptor or
StreamStreamClientInterceptor, optional): gRPC interceptors.
"""
if not address:
address = f"{settings.DAPR_RUNTIME_HOST}:{settings.DAPR_GRPC_PORT}"
self._address = address
self._channel = grpc.insecure_channel(address) # type: ignore
if settings.DAPR_API_TOKEN:
api_token_interceptor = DaprClientInterceptor([
('dapr-api-token', settings.DAPR_API_TOKEN),
])
self._channel = grpc.intercept_channel( # type: ignore
self._channel, api_token_interceptor)
if interceptors:
self._channel = grpc.intercept_channel( # type: ignore
self._channel, *interceptors)
self._stub = api_service_v1.DaprStub(self._channel)
def __init__(
self,
address: Optional[str] = None,
interceptors: Optional[List[Union[
UnaryUnaryClientInterceptor,
UnaryStreamClientInterceptor,
StreamUnaryClientInterceptor,
StreamStreamClientInterceptor]]] = None,
max_grpc_message_length: Optional[int] = None
):
"""Connects to Dapr Runtime and initialize gRPC client stub.
Args:
address (str, optional): Dapr Runtime gRPC endpoint address.
interceptors (list of UnaryUnaryClientInterceptor or
UnaryStreamClientInterceptor or
StreamUnaryClientInterceptor or
StreamStreamClientInterceptor, optional): gRPC interceptors.
max_grpc_messsage_length (int, optional): The maximum grpc send and receive
message length in bytes.
"""
if not address:
address = f"{settings.DAPR_RUNTIME_HOST}:{settings.DAPR_GRPC_PORT}"
self._address = address
if not max_grpc_message_length:
self._channel = grpc.insecure_channel(address) # type: ignore
else:
self._channel = grpc.insecure_channel(address, options=[ # type: ignore
('grpc.max_send_message_length', max_grpc_message_length),
('grpc.max_receive_message_length', max_grpc_message_length),
])
if settings.DAPR_API_TOKEN:
api_token_interceptor = DaprClientInterceptor([
('dapr-api-token', settings.DAPR_API_TOKEN), ])
self._channel = grpc.intercept_channel( # type: ignore
self._channel, api_token_interceptor)
if interceptors:
self._channel = grpc.intercept_channel( # type: ignore
self._channel, *interceptors)
self._stub = api_service_v1.DaprStub(self._channel)
"""
dapr run --protocol grpc --grpc-port=50001 python example.py
"""
import grpc
import os
from dapr.proto import api_v1, api_service_v1, common_v1
from google.protobuf.any_pb2 import Any
# Get port from environment variable.
port = os.getenv('DAPR_GRPC_PORT', '50001')
daprUri = 'localhost:' + port
channel = grpc.insecure_channel(daprUri)
client = api_service_v1.DaprStub(channel)
client.PublishEvent(api_v1.PublishEventRequest(topic='sith', data='lala'.encode('utf-8')))
print('Published!')
key = 'mykey'
storeName = 'statestore'
req = common_v1.StateItem(key=key, value='my state'.encode('utf-8'))
state = api_v1.SaveStateRequest(store_name=storeName, states=[req])
client.SaveState(state)
print('Saved!')
resp = client.GetState(api_v1.GetStateRequest(store_name=storeName, key=key))
print('Got!')
print(resp)
