NAME Catalyst::ActionRole::JSV - A JSON Schema validator for Catalyst actions SYNOPSIS package MyApp::Controller::Item; use Moose; use namespace::autoclean; BEGIN { extends 'Catalyst::Controller'; } # RESTful API (Consumes type action) support by Catalyst::Runtime 5.90050 higher __PACKAGE__->config( action => { '*' => { Consumes => 'JSON', Path => '', } } ); # Get info on a specific item # GET /item/:item_id sub lookup :GET Args(1) :Does(JSV) :JSONSchema(root/schema/lookup.json) { my ( $self, $c, $item_id ) = @_; my $params = $c->request->parameters; ... } # lookup.json (json schema draft4 validation) { "title": "Lookup item", "type": "object", "properties": { "item_id": { "type": "integer", "minLength": 1, "maxLength": 9, "captureargs": 1 # In the case of URL CaptureArgs }, "paramX": { "type": "string", "minLength": 8, "maxLength": 12 }, }, "required": ["item_id"] } DESCRIPTION Catalyst::ActionRole::JSV is JSON Schema validator for Catalyst actions. Internally use the json schema draft4 validator called JSV. Error Response On error it returns 400 http response status. The stash key to set the error message is 'View::JSON expose_stash' key. The default key if omitted is 'json'. $c->stash->{'View::JSON expose_stash key'} = {message => 'JSV->validate->get_error'} myapp.yml config name: MyApp View::JSON: expose_stash: 'json' SEE ALSO Catalyst::Controller Catalyst::View::JSON JSV::Validator Catalyst Advent Calendar 2013 / How to implement a super-simple REST API with Catalyst http://www.catalystframework.org/calendar/2013/26 AUTHOR Masaaki Saito COPYRIGHT Copyright 2017- Masaaki Saito LICENSE This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO