jrcg0000 / grpc_requests

python grpc reflaction client

grpc requests

GRPC for Humans

from grpc_requests import Client

client = Client.get_by_endpoint("localhost:50051")
assert client.service_names == ["helloworld.Greeter"]

request_data = {"name": 'sinsky'} 
result = client.request("helloworld.Greeter", "SayHello", request_data)
print(result) # {"message":"Hellow sinsky"}

Feature

• connect server using reflection
• no need stub class request grpc
• support all unary & stream method
• support tls & compression connect

install

pip install grpc_requests

use it like RPC!

from grpc_requests import Client

client = Client.get_by_endpoint("localhost:50051")
# if you want connect tls
# client = Client.get_by_endpoint("localhost:443",ssl=True)
# or if you want Compression connect
# client = Client.get_by_endpoint("localhost:443",compression=grpc.Compression.Gzip)
assert client.service_names == ["helloworld.Greeter",'grpc.health.v1.Health']

health = client.service('grpc.health.v1.Health')
assert health.method_names == ('Check', 'Watch')

result = health.Check()
assert result == {'status': 'SERVING'}

greeter = client.service("helloworld.Greeter")

request_data = {"name": 'sinsky'}
result = greeter.SayHello(request_data)
results = greeter.SayHelloGroup(request_data)

requests_data = [{"name": 'sinsky'}]
result = greeter.HelloEveryone(requests_data)
results = greeter.SayHelloOneByOne(requests_data)

example

request unary-unary

service = "helloworld.Greeter"
unary_unary_method = 'SayHello'

request_data = {"name": 'sinsky'} # You Don't Need Stub!
result = client.request(service, unary_unary_method, request_data)
assert dict == type(result) # result is dict Type!!! not Stub Object!
assert {"message":"Hellow sinsky"} == result

# or

request_data = {"name": 'sinsky'} # You Don't Need Stub!
# any one know this method is unary-unary
result = client.unary_unary(service, unary_unary_method, request_data) 
assert dict == type(result) # result is dict Type!!! not Stub Object!
assert {"message":"Hellow sinsky"} == result

request unary-stream

unary_stream_method = 'SayHelloGroup'
unary_stream_results = client.request(service, unary_unary_method, request_data)
assert all([dict == type(result) for result in unary_stream_results])
assert [{"message":"Hellow sinsky"}] == list(unary_stream_results)

# or

unary_stream_results = client.unary_stream(service, unary_unary_method, request_data)
assert all([dict == type(result) for result in unary_stream_results])
assert [{"message":"Hellow sinsky"}] == list(unary_stream_results)

request stream-unary

requests_data = [request_data] # iterator
stream_unary_method = 'HelloEveryone'

result_stream_unary = client.request(service, stream_unary_method, requests_data)
assert dict == type(result) # result is dict Type!!! not Stub Object!

# or

result_stream_unary = client.stream_unary(service, stream_unary_method, requests_data)
assert dict == type(result) # result is dict Type!!! not Stub Object!

request stream-stream

requests_data = [request_data] # iterator
stream_stream_method = 'SayHelloOneByOne'

result = client.request(service, stream_stream_method,requests_data )
assert all([dict == type(result) for result in unary_stream_results])

# or

result = client.stream_stream(service, stream_stream_method,requests_data )
assert all([dict == type(result) for result in unary_stream_results])

using Stub

from grpc_requests import Client
from helloworld_pb2 import HelloRequest

port = '50051'
host = "localhost"
endpoint = f"{host}:{port}"

client = Client.get_by_endpoint(endpoint)
print(client.service_names) # ["helloworld.Greeter"]

service = "helloworld.Greeter"
method = 'SayHello'

result = client.unary_unary(service, method, HelloRequest(name='sinsky'))
print(type(result)) # result is dict Type!!! not Stub Object!
print(result) # {"message":"Hellow sinsky"}

# or get raw response data
result = client.unary_unary(service, method, HelloRequest(name='sinsky'),raw_output=True)
print(type(result)) # HelloReply stub class

Road map

• support no reflection server

Relation Project

• homi : micro grpc framework like flask. easy to use!

Change Logs

• 0.0.7

  • Feature
    • support Compression

• 0.0.6

  • Feature
    • support tls connect

• 0.0.5

  • Change
    • response filed get orginal proto field(before returend lowerCamelCase)

• 0.0.3

  • Feature
    • dynamic request method
    • service client

• 0.0.2

  • support all method type
  • add request test case

• 0.0.1

  • sync proto using reflection
  • auto convert request(response) from(to) dict
  • support unary-unary