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Utils for jjv - useful api to use JSON Schema and jjv tool

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jjv-utils

Utils for JJV JSON Validator - useful api to use json-schema and jjv tool.

Installation

npm install jjv-utils

Usage

Lets have an example - jsonSchema

jsonSchema = {
    "name": "test",
    "common": {
        "properties": {
            "type": {
                "enum": ["common"]
            }
        },
        "required": [
            "type"
        ]
    }
};

Utils will create an jjv env for further usage with a test (jsonSchema.name) namespace. If jsonSchema is not given as an argument - an environment will be created without any namespace.

schema = require(pathToJjvUtils)(jsonSchema);

Use add to add json schema after initialization

schema.add('test1', jsonSchema);

Use is to validate an object by schema reference, like jjv validate method

commonObj = { type: 'common' };
schema.is('test#/common', commonObj) => true

Use generate to generate a function to compare conditions. Easy to use in each, find and other lodash iterable functions.

var testCommon = schema.generate('test#/common');
[commonObj].map(testCommon) => [true]

var testNotCommon = schema.generate('test#/common', true);
[commonObj].map(testNotCommon) => [false]

Use find to easy switch condition. Usable for cozy factory functions.

var references = {
    'test#/common': 1
};

schema.find(references, commonObj) => 1
schema.find(references, unknownObj) => undefined

API

  • add(String namespace, Object jsonSchema) add schema to existing jjv environment
  • is(String reference, Object data) validate object by schema reference
  • generate(String reference[, Boolean isReverse]) generates function to use in functional expressions
  • find(Object/Array types, Object data) iterates through an object or array to find appropriate schema to given object. Returns undefined if not found.
  • env original jjv-environment

Tests

npm test

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