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zhaowei7146 committed Nov 8, 2018
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Apache License
### Thanks
Thank @jingpeicomp for being a Guinea pig. It has been running normally for several months in the production environment. Thank you!
## Python Dubbo Client
## Achieve load balancing on the client side、auto discovery service function with Zookeeper
### Python calls the Dubbo interface's jsonrpc protocol
Please use dubbo-rpc-jsonrpc and configure protocol in Dubbo for jsonrpc protocol
*Reference* [https://github.com/apache/incubator-dubbo-rpc-jsonrpc](https://github.com/apache/incubator-dubbo-rpc-jsonrpc)

### Installation

Download code
python setup.py install
pip install
pip install dubbo-client==1.0.0b5
Git install
pip install git+[http://git.dev.qianmi.com/tda/dubbo-client-py.git@1.0.0b5](http://git.dev.qianmi.com/tda/dubbo-client-py.git@1.0.0b5)
or
pip install git+[https://github.com/qianmiopen/dubbo-client-py.git@1.0.0b5](https://github.com/qianmiopen/dubbo-client-py.git@1.0.0b5)

### Load balancing on the client side, service discovery

Get the registration information of the service through the zookeeper of the registry.
Dubbo-client-py supports configuring multiple zookeeper service addresses.
"host":"192.168.1.183:2181,192.168.1.184:2181,192.168.1.185:2181"
Then the load balancing algorithm is implemented by proxy, and the server is called.
Support Version and Group settings.
### Example
config = ApplicationConfig('test_rpclib')
service_interface = 'com.ofpay.demo.api.UserProvider'
#Contains a connection to zookeeper, which needs caching.
registry = ZookeeperRegistry('192.168.59.103:2181', config)
user_provider = DubboClient(service_interface, registry, version='1.0')
for i in range(1000):
try:
print user_provider.getUser('A003')
print user_provider.queryUser(
{u'age': 18, u'time': 1428463514153, u'sex': u'MAN', u'id': u'A003', u'name': u'zhangsan'})
print user_provider.queryAll()
print user_provider.isLimit('MAN', 'Joe')
print user_provider('getUser', 'A005')

except DubboClientError, client_error:
print client_error
time.sleep(5)

### TODO
Optimize performance, minimize the impact of service upper and lower lines.
Support Retry parameters
Support weight call
Unit test coverage
### Licenses
Apache License
### Thanks
Thank @jingpeicomp for being a Guinea pig. It has been running normally for several months in the production environment. Thank you!

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