How to create a REST web service using Mathematica?

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I would like to create a simple RESTful web service interface to publish a particular, complex calculation implemented in a Mathematica program to other external programs. I am thinking something along the lines of the geocoder ZIP-code distance calculator example, easy to call via URI and passing an array of numbers as parameters (matrix algebra).

I have seen the Web Services documentation on Wolfram’s reference for Mathematica 9. It seems to be a bit dated (2008) and geared towards SOAP 1.1. Also, the tutorials are generally describing the scenario where Mathematica is consuming an external web service as a client, as compared to offering a web service as Provider to external systems. I did not find any reference to a REST web service built with Mathematica either.

Any pointers or example code would be appreciated.

Thanks, Thomas.

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Hi Thomas,

You can do It with WebMathematica. See this page.
    In the future, I believe that with WolframCloud it will be much simpler to do that. But it’s not avaliable today.