https://github.com/ocramz/aeson-schema

Haskell JSON schema validator and parser generator
https://github.com/ocramz/aeson-schema

Last synced: 22 days ago
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Haskell JSON schema validator and parser generator

• Host: GitHub
• URL: https://github.com/ocramz/aeson-schema
• Owner: ocramz
• License: mit
• Created: 2015-08-03T16:01:00.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2023-01-06T04:02:05.000Z (almost 2 years ago)
• Last Synced: 2024-05-01T23:24:21.975Z (6 months ago)
• Language: Haskell
• Size: 243 KB
• Stars: 59
• Watchers: 6
• Forks: 17
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# aeson-schema [![Stack-CI](https://github.com/ocramz/aeson-schema/actions/workflows/stack-ci.yaml/badge.svg?branch=master)](https://github.com/ocramz/aeson-schema/actions/workflows/stack-ci.yaml) [![Hackage version](https://img.shields.io/hackage/v/aeson-schema.svg?style=flat)](http://hackage.haskell.org/package/aeson-schema) [![Hackage dependencies](https://img.shields.io/hackage-deps/v/aeson-schema.svg?style=flat)](http://packdeps.haskellers.com/feed?needle=aeson-schema)

aeson-schema is an implementation of the [JSON Schema specification](http://json-schema.org). It can be used in two ways:

* To validate JSON value against a schema.

* To generate a parser for a schema. The generated code includes Haskell data structure definitions and FromJSON instances. This allows you to use the validated data in a type-safe and convenient way.

You can install this library using cabal:

    cabal update && cabal install aeson-schema

## Running the tests

aeson-schema utilizes the cabal sandbox.  To get up and running with the tests you'll need to use these commands:

    cd aeson-schema

    git submodule init

    git submodule update

    cabal sandbox init

    cabal install

    cabal install --enable-tests

    cabal test

## Compatibility

aeson-schema implements [Draft 3](http://tools.ietf.org/html/draft-zyp-json-schema-03) of the spec. It supports all core schema definitions except the following 'format' values:

* data-time

* date

* time

* utc-millisec

* color

* style

* phone

* uri

* email

* ip-address

* ipv6

* host-name

I would be happy to accept pull requests that implement validation of one of these formats, fix bugs or add other features.

## Other libraries

The [hjsonschema](https://github.com/seagreen/hjsonschema) library is more actively maintained and implements the newer JSON Schema v4. It doesn't do code generation, however.