Package Exports

@cfworker/json-schema

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Readme

@cfworker/json-schema

A JSON schema validator that will run on Cloudflare workers. Supports drafts 4, 7, and 2019-09.

background

Why another JSON schema validator?

Cloudflare workers do not have APIs required by Ajv schema compilation (eval or new Function(code)). If possible use Ajv in a build step to precompile your schema. Otherwise use this library.

usage

Basic

import { Validator } from '@cfworker/json-schema';

const validator = new Validator({ type: 'number' });

const result = validator.validate(7);

Specify meta schema draft

const validator = new Validator({ type: 'number' }, '4'); // draft-4

Add schemas

const validator = new Validator({
  $id: 'https://foo.bar/baz',
  $ref: '/beep'
});

validator.addSchema({ $id: 'https://foo.bar/beep', type: 'boolean' });

Include all errors By default the validator will stop processing an object or array after the first error. Specifying shortCircuit to false will produce all errors.

const validator = new Validator(
  {
    type: 'object',
    properties: {
      name: { type: 'string' },
      email: { type: 'string' },
      number: { type: 'number' },
      required: ['name', 'email', 'number']
    }
  },
  '2019-09',
  false
);

const result = validator.validate({
  name: 'hello',
  email: 5, //invalid type
  number: 'Hello' //invalid type
});