osrm-backend/third_party/flatbuffers/grpc/examples/python/greeter/client.py

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import sys
import argparse
import grpc
sys.path.insert(0, '../../../../../flatbuffers/python')
import flatbuffers
from models import HelloReply, HelloRequest, greeter_grpc_fb
parser = argparse.ArgumentParser()
parser.add_argument("port", help="server port to connect to", default=3000)
parser.add_argument("name", help="name to be sent to server", default="flatbuffers")
def say_hello(stub, hello_request):
reply = stub.SayHello(hello_request)
r = HelloReply.HelloReply.GetRootAs(reply)
print(r.Message())
def say_many_hellos(stub, hello_request):
greetings = stub.SayManyHellos(hello_request)
for greeting in greetings:
r = HelloReply.HelloReply.GetRootAs(greeting)
print(r.Message())
def main():
args = parser.parse_args()
with grpc.insecure_channel('localhost:' + args.port) as channel:
builder = flatbuffers.Builder()
ind = builder.CreateString(args.name)
HelloRequest.HelloRequestStart(builder)
HelloRequest.HelloRequestAddName(builder, ind)
root = HelloRequest.HelloRequestEnd(builder)
builder.Finish(root)
output = bytes(builder.Output())
stub = greeter_grpc_fb.GreeterStub(channel)
say_hello(stub, output)
say_many_hellos(stub, output)
main()