How to deserialize using Thrit TBinaryProtocol

Question

I havea thrift file that was serialized with TBinaryProtocol. I want to deserialize this file to read it's content. What's the best approach to do it?

I am using thrift:

    from thrift.TSerialization import serialize
    from thrift.protocol.TBinaryProtocol import TBinaryProtocol

and then I defined the function:

def thrift_to_json(d):
    return serialize(d, protocol_factory=TBinaryProtocol())

When I run the above function I get this error msg:

TypeError: TBinaryProtocol.__init__() missing 1 required positional argument: 'trans'

How can I pass the argument trans to the TBinaryProtocol? and what is this trans argument?

Thanks

Answer 1

The missing "trans" tells you that you need a transport, e.g. a file stream that holds the input data.

Thrift separates the endpoint transports (file, socket, http) from the serialization protocol (binary, json, compact) and that's why one needs at least as a minimum some "enpdoint" transport and some protocol.

Useful links:

• Python Tutorial: https://thrift.apache.org/tutorial/py.html
• Python Library: https://github.com/apache/thrift/tree/master/lib/py/src