anthunder 0.8.1

Description:

anthunder 0.8.1

anthunder(a.k.a. sofa-bolt-python)
anthunder(ant thunder) is a sofa-bolt library written in python.
It supports RPC calling via 'sofa-bolt + protobuf' protocol.
requirements

python3 >= 3.5 (aio classes needs asyncio support)
python2.7 (limited support, needs extra 3rd party libraries)
mosn >= 1.3 (to use with version >= 0.6)
mosn < 1.3 (to use with version < 0.6)

roadmap

bolt client(protobuf serialization)
service discover via mosn (sofa servicemesh sidecar)
bolt server(protobuf serialization)
hessian2 serialization support

Tutorial
As client (caller)

Acquire .proto file
Execute protoc --python_out=. *.proto to compile protobuf file, and get _pb2.py file.
Import protobuf classes (postfixed with _pb2)

from SampleServicePbResult_pb2 import SampleServicePbResult
from SampleServicePbRequest_pb2 import SampleServicePbRequest

from anthunder import AioClient


spanctx = SpanContext() # generate a new context, an object of mytracer.SpanContext, stores rpc_trace_context.
# spanctx = ctx # or transfered from upstream rpc
client = AioClient(my_app_name) # my_app_name will be send to sidecar as caller name.
# will create a thread, and send heartbeat to mesh every 30s

interface = 'com.alipay.rpc.common.service.facade.pb.SampleServicePb:1.0'

# Subscribe interface
client.subscribe(interface)

# Call synchronously
content = client.invoke_sync(interface, "hello",
SampleServicePbRequest(name=some_name).SerializeToString(),
timeout_ms=500, spanctx=spanctx)
result = SampleServicePbResult()
result.ParseFromString(content)

# Call asynchronously

def client_callback(resp):
# callback function, accepts bytes as the only argument,
# then do deserialize and further processes
result = SampleServicePbResult()
result.ParseFromString(content)
# do something

future = client.invoke_async(interface, "hello",
SampleServicePbRequest(name=some_name).SerializeToString(),
spanctx=spanctx, callback=client_callback)
)

See project's unittest for runnable demo
As server
from anthunder.listener import aio_listener

class SampleService(object):
def __init__(self, ctx):
# service must accept one param as spanctx for rpc tracing support
self.ctx = ctx

def hello(self, bs: bytes):
obj = SampleServicePbRequest()
obj.ParseFromString(bs)
print("Processing Request", obj)
return SampleServicePbResult(result=obj.name).SerializeToString()


listener = aio_listener.AioListener(('127.0.0.1', 12200), "test_app")
# register interface and its function, plus its protobuf definition class
listener.handler.register_interface("com.alipay.rpc.common.service.facade.pb.SampleServicePb:1.0",
SampleService)
# start server in a standalone thread
listener.run_threading()
# or start in current thread
listener.run_forever()

# publish interfaces to service mesh
listener.publish()

# shutdown the server
listener.shutdown()

License
Copyright (c) 2018-present, Ant Financial Service Group
Apache License 2.0
See LICENSE file.
Thirdparty
Part of the mysockpool package uses codes from urllib3 project
under the term of MIT License. See origin-license.txt under the mysockpool package.
Release History
0.5.6 (2019-03-15)
Bugfixes

fix a infinite loop bug when parsing protocol

0.5.4 (2018-11-09)
Bugfixes

fix server errors under python2.7

0.5.3 (2018-08-27)
Feature

support antsharecloud parameters.

0.5.2 (2018-09-03)
Bugfixes

fix various errors under python2.7

0.5.1 (2018-08-31)
Bugfixes

sofa trace rpc id may contains str.