# metalman-schema

> A JSON schema validation middleware for the metalman module.

Latest version **4.0.2** (published 2023-11-27) · ISC license · 0 weekly downloads

## Install

```sh
npm install metalman-schema
pnpm add metalman-schema
yarn add metalman-schema
bun add metalman-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 | 4.0.2 |
| Published | 2023-11-27 |
| First published | 2016-10-27 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 2 |
| Unpacked size | 4.5 KB |
| Known vulnerabilities | 0 (+1 in 1 direct dependencies) |
| Install scripts | no |
| GitHub stars | 1 |
| Author | Marc Bachmann |
| Maintainers | marcbachmann |
| Keywords | metalman, middleware, json, schema, json schema, validation, validate |

## Links

- npm: https://www.npmjs.com/package/metalman-schema
- Repository: https://github.com/marcbachmann/metalman-schema
- Homepage: https://github.com/marcbachmann/metalman-schema#readme
- Issues: https://github.com/marcbachmann/metalman-schema/issues
- npm.io page: https://npm.io/package/metalman-schema

## Dependencies (2)

- [ajv](https://npm.io/package/ajv.md) ^7.1.1
- [ajv-formats](https://npm.io/package/ajv-formats.md) ^1.5.1

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## Recent versions

- 4.0.2 (latest) — 2023-11-27
- 4.0.1 — 2021-03-01
- 4.0.0 — 2021-03-01
- 3.0.0 — 2021-01-13
- 2.0.0 — 2017-09-29
- 1.0.2 — 2017-09-29
- 1.0.1 — 2017-09-29
- 1.0.0 — 2016-10-27

## README

# metalman-schema

[![Greenkeeper badge](https://badges.greenkeeper.io/marcbachmann/metalman-schema.svg)](https://greenkeeper.io/)

A JSON schema validation middleware for the metalman module.


```js
var metalman = require('metalman')
var action = require('metalman-action')

var command = metalman([validate])
var fn = command({
  schema: {
    type: 'object',
    required: ['foo'],
    additionalProperties: false,
    properties: {
      foo: {type: 'number'}
    }
  }
})

fn({foo: 'bar'}, function (err) {
  // err instanceof Error
  // err.name equals 'ValidationError'
  // err.message equals "Value at path '/foo' should be number"
})

fn({foo: 1}, function (err) {
  // err equals null if the schema is valid
})

```

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