Massimo's method may be better -- I haven't personally experimented with the restful stuff yet.
But you can still use SQLFORM or SQLFORM.factory with form.accepts() to run the validators. You just don't display the form anywhere if you don't need to. You also need to pass formname=None to accepts(). Doing this, form.accepts() will run your values through the validators, transform them as needed, and populate form.errors based on the GET and POST variables provided by whatever is calling your web service. Here's a simple example I cobbled together that adds two numbers. Example use: http://localhost:8000/app/controller/add?val1=3.14&val2=2.718 def add(): form = SQLFORM.factory( Field('val1', 'double', requires=IS_FLOAT_IN_RANGE(0, 10)), Field('val2', 'double', requires=IS_FLOAT_IN_RANGE(0, 10)) ) if form.accepts(request.vars, formname=None): return form.vars.val1 + form.vars.val2 else: errors = "Errors:\n" for fieldname in form.errors: errors += "%s: %s\n" % (fieldname, form.errors[fieldname]) raise HTTP(400, errors) Cheers, Kevin
