[Haskell-cafe] implement SOAP-based standard

[Yitzchak Gale]

When we come across a SOAP-based service we must provide or use, our
approach is to use a REST-based wrapper. So far we have always been
able to find existing solutions. For example, for SAML, there are
services that already provide a REST-base wrapper for SAML-based
identity providers, such as StormPath, Ping, and Shibboleth.

If we didn't find an existing solution for some SOAP service, we would
probably write our own REST wrapper in C# or Java and use that.

Hope this helps,
Yitz


On Fri, Sep 16, 2016 at 5:43 PM, Olaf Klinke <olf at aatal-apotheke.de> wrote:
> Dear Haskellers,
>
> I am considering implementing the OPC XML DA standard [1] in Haskell. OPC XML DA
> is based on SOAP and is used for communicating with servers controlling hardware
> such as power plants. Currently the only open implementation known to me is
> PyOPC [2], which is based on an outdated Python libraries. However, Python seems
> not the nicest language for writing code that is devoid of bugs showing at
> runtime only. The OPC XML DA standard comes with a WSDL document (600 lines).
> There is a wsdl package on hackage, but it is incomplete.
> Can anyone share experience in implementing a webservice specified as WSDL?
> Actually, the client side would be enough for my purposes. That is, compose
> well-formed messages and parse the responses.
>
> Thanks,
> Olaf
>
> [1]
> https://opcfoundation.org/developer-tools/specifications-classic/xml-data-access/
> [2] https://libraries.io/pypi/PyOPC
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