[Soap-Python] Big file transfer with rpclib

[Burak Arslan]

Hi Vladimir,

Rpclib's mtom implementation is 90% there. But because there are no test 
cases for it, it's not currently working, nor is it properly documented. 
For instance, you need to explicitly enable mtom passing the _mtom=True 
flag to the @rpc decorator.

rpclib.model.binary.File was not tested with soap, so I guess it 
requires a custom soap serializer routine to work properly.

Those said, I don't think suds supports mtom either. Did you check the 
suds side of things?

Why not just use http?

Best,
Burak


On 04/18/12 19:34, Vladimir Rutsky wrote:
> Hello!
>
> I need to write several Python web-services for local network that
> will exchange with RPC commands with attached files with size 10-1000
> MB. I'm trying to use SOAP for message exchanging since XML/JSON RPC
> can't handle big messages, and SOAP have few features that allows to
> stream files over network (SwA, MTOM).
>
> I see some code related to MTOM in source code of rpclib, is it
> possible to transfer big files with current version of rpclib? Is
> there any examples of it?
>
> Currently I try to modify binary_soap.py [1] example to return
> rpclib.model.binary.File object, but without any luck:
>
>      @srpc(String, _returns=File)
>      def get(file_path):
>          return [File("test.txt", "/tmp/test.txt")]
>
> SUDS client receives just string:
> [File(name='test.txt', path='/tmp/test.txt',
> type='application/octet-stream', data=<generator object
> to_string_iterable at 0xb6a18644>)]
>
> Thanks in advance,
> Vladimir Rutsky
>
> [1] https://github.com/arskom/rpclib/blob/master/examples/binary_soap.py
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