jsonschema

Simple and fast JSON schema validator.

Usage

Simple

Simple object validation using JSON schemas.

  var v = new Validator();
  var instance = 4;
  var schema = {"type": "number"};
  console.log(v.validate(instance, schema));

Even simpler

  var validate = require('jsonschema').validate;
  console.log(validate(4, {"type": "number"}));

Complex example, with split schemas and references

  var v = new Validator();

  // Address, to be embedded on Person
  var addressSchema = {
    "id": "/SimpleAddress",
    "type": "object",
    "properties": {
      "lines": {
        "type": "array",
        "items": {"type": "string"}
      },
      "zip": {"type": "string"},
      "city": {"type": "string"},
      "country": {"type": "string", "required": true}
    }
  };

  // Person
  var schema = {
    "id": "/SimplePerson",
    "type": "object",
    "properties": {
      "name": {"type": "string"},
      "address": {"$ref": "/SimpleAddress"},
      "votes": {"type": "integer", "minimum": 1}
    }
  };

  var p = {
    "name": "Barack Obama",
    "address": {
      "lines": [ "1600 Pennsylvania Avenue Northwest" ],
      "zip": "DC 20500",
      "city": "Washington",
      "country": "USA"
    },
    "votes": "lots"
  };

  var v = new Validator();
  v.addSchema(addressSchema, '/SimpleAddress');
  console.log(v.validate(p, schema));

Features

Definitions

All schema definitions are supported, $schema is ignored.

Types

All types are supported

String Formats

All formats are supported, phone numbers are expected to follow the http://en.wikipedia.org/wiki/E.123 standard.

Tests

Uses [https://github.com/Julian/JSON-Schema-Test-Suite](JSON Schema Test Suite) as well as our own. You'll need to update and init the git submodules:

git submodule update --init
npm test

License

jsonschema is licensed under MIT license.

Copyright (C) 2012 Tom de Grunt tom@degrunt.nl

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.