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actix-web/examples/protobuf/client.py

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2018-03-09 03:05:13 +01:00
# just start server and run client.py
# wget https://github.com/google/protobuf/releases/download/v3.5.1/protobuf-python-3.5.1.zip
# unzip protobuf-python-3.5.1.zip.1
# cd protobuf-3.5.1/python/
# python3.6 setup.py install
# pip3.6 install --upgrade pip
# pip3.6 install aiohttp
#!/usr/bin/env python
import test_pb2
import traceback
import sys
import asyncio
import aiohttp
def op():
try:
obj = test_pb2.MyObj()
obj.number = 9
obj.name = 'USB'
#Serialize
sendDataStr = obj.SerializeToString()
#print serialized string value
print('serialized string:', sendDataStr)
#------------------------#
# message transmission #
#------------------------#
receiveDataStr = sendDataStr
receiveData = test_pb2.MyObj()
#Deserialize
receiveData.ParseFromString(receiveDataStr)
print('pares serialize string, return: devId = ', receiveData.number, ', name = ', receiveData.name)
except(Exception, e):
print(Exception, ':', e)
print(traceback.print_exc())
errInfo = sys.exc_info()
print(errInfo[0], ':', errInfo[1])
async def fetch(session):
obj = test_pb2.MyObj()
obj.number = 9
obj.name = 'USB'
async with session.post('http://localhost:8080/', data=obj.SerializeToString(),
headers={"content-type": "application/protobuf"}) as resp:
print(resp.status)
data = await resp.read()
receiveObj = test_pb2.MyObj()
receiveObj.ParseFromString(data)
print(receiveObj)
async def go(loop):
obj = test_pb2.MyObj()
obj.number = 9
obj.name = 'USB'
async with aiohttp.ClientSession(loop=loop) as session:
await fetch(session)
loop = asyncio.get_event_loop()
loop.run_until_complete(go(loop))
loop.close()