# strict-json-object-schema

> quickly make JSON Schemas for objects with all required and no additional properties

Latest version **1.1.0** (published 2018-07-21) · MIT license · 0 weekly downloads

## Install

```sh
npm install strict-json-object-schema
pnpm add strict-json-object-schema
yarn add strict-json-object-schema
bun add strict-json-object-schema
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.1.0 |
| Published | 2018-07-21 |
| First published | 2018-07-20 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 3.1 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Author | Kyle E. Mitchell |
| Maintainers | kemitchell |

## Links

- npm: https://www.npmjs.com/package/strict-json-object-schema
- Repository: https://github.com/kemitchell/strict-json-object-schema.js
- Homepage: https://github.com/kemitchell/strict-json-object-schema.js#readme
- Issues: https://github.com/kemitchell/strict-json-object-schema.js/issues
- npm.io page: https://npm.io/package/strict-json-object-schema

## Recent versions

- 1.1.0 (latest) — 2018-07-21
- 1.0.1 — 2018-07-21
- 1.0.0 — 2018-07-20

## README

```javascript
var strict = require('strict-json-object-schema')

var firstAndLastName = strict({
  first: {type: 'string', const: 'John'},
  last: {type: 'string', const: 'Doe'}
})

var ajv = new require('ajv')()
var assert = require('assert')

assert(ajv.validateSchema(firstAndLastName))

assert(ajv.validate(firstAndLastName, {first: 'John', last: 'Doe'}))

// Missing required property "last":
assert(!ajv.validate(firstAndLastName, {first: 'John'}))

// Additional property "extra":
assert(!ajv.validate(firstAndLastName, {first: 'John', last: 'Doe', extra: 'invalid!'}))

var optionalLastName = strict({
  first: {type: 'string', const: 'John'},
  last: {
    // This property will not be required.
    optional: true,
    type: 'string',
    const: 'Doe'
  }
})

assert.deepStrictEqual(
  optionalLastName,
  {
    type: 'object',
    properties: {
      first: {type: 'string', const: 'John'},
      last: {type: 'string', const: 'Doe'}
    },
    required: ['first'], // Only first is required.
    additionalProperties: false
  }
)
```

---
_Source: https://npm.io/package/strict-json-object-schema · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._