Required fields support

[delvedor]

Added required field support.

Example:

const fastJson = require('fast-json-stringify')
const stringify = fastJson({
  title: 'schema with required field',
  type: 'object',
  properties: {
    str: {
      type: 'string',
      required: true
    },
    num: {
      type: 'number'
    }
  }
})

If the required field is not provided, fast-json-stringify will throw an error.

Required feedback 😄

[mcollina]

what happens if a key is not required, but it is not present?

[delvedor]

This:

const fastJson = require('fast-json-stringify')
const stringify = fastJson({
  title: 'schema with required field',
  type: 'object',
  properties: {
    str: {
      type: 'string',
      required: true
    },
    num: {
      type: 'number'
    }
  }
})

console.log(stringify({
  str: 'string'
}) // '{"str":"string","num":null}'

[mcollina]

Good job, one nit :)

[mcollina]

THx! :)