Package Exports

ajv
ajv/lib/ajv
ajv/lib/compile/equal
ajv/lib/compile/formats
ajv/lib/compile/formats.js
ajv/lib/refs/json-schema-draft-04
ajv/lib/refs/json-schema-draft-04.json
ajv/package.json

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (ajv) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

ajv - Another JSON schema Validator

One of the fastest JSON schema validators. It uses doT templates to generate super-fast validating functions.

JSON-schema standard

ajv implements full JSON-schema draft 4 standard:

all validation keywords
full support of remote refs (remote schemas have to be pre-loaded)
correct string lengths for strings with unicode pairs (can be turned off)
formats defined by JSON-schema (can be turned off)

ajv passes all the tests from JSON Schema Test Suite (apart from the one that requires that 1.0 is not an integer).

TODO

resolve missing remote refs when schemas are added
custom formats (via options)
schema validation before compilation
bundle compiled templates (doT will be dev dependency)

Install

npm install ajv

Usage

var ajv = require('ajv')(options);
var validate = ajv.compile(schema);
var valid = validate(data);
if (!valid) console.log(validate.errors);

// ...
var valid = ajv.validate(schema, data);
// ...

ajv compiles schemas to functions and caches them in both cases (using stringified schema as a key - using json-stable-stringify), so that the next time the same schema is used (not necessarily the same object instance) it won't be compiled again.

Options

allErrors: check all rules collecting all errors. Default is to return after the first error.
verbose: include the reference to the part of the schema and validated data in errors (false by default).
format: validate formats (true by default).
meta: add meta-schema so it can be used by other schemas (true by default).
uniqueItems: validate uniqueItems (true by default).
unicode: calculate correct length of strings with unicode pairs (true by default). Pass false to use .length of strings that is faster, but gives "incorrect" lengths of strings with unicode pairs - each unicode pair is counted as two characters.
beautify: format the generated function with js-beautify (the validating function is generated without line-breaks). npm install js-beautify to use this option. true or js-beautify options can be passed.

Tests

git submodule update --init
npm test