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eg/bmi.psgi  view on Meta::CPAN

    % curl -X POST -H "Content-type: application/json" -d '{"weight": 60, "height": 'a'}' http://localhost:5000/bmi
    {"attribute":"Valiemon::Attributes::Required","position":"/required"}

    % curl -X POST -H "Content-type: application/json" -d '{"weight": 60, "height": 'a'}' http://localhost:5000/bmi
    {"attribute":"Valiemon::Attributes::Required","position":"/required"}

    % curl -X POST -H "Content-type: application/json" -d '{"weight": 60}' http://localhost:5000/bmi
    {"attribute":"Valiemon::Attributes::Required","position":"/required"}

You can read the document of API at L<http://localhost:5000/doc/>