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hjsonschema: JSON Schema library

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Deprecated
Versions [RSS] 0.1.0.0, 0.1.1.0, 0.2.0.0, 0.3.0.0, 0.4.0.0, 0.5.0.0, 0.5.1.0, 0.5.1.1, 0.5.1.2, 0.5.1.3, 0.5.2.0, 0.5.2.1, 0.5.2.2, 0.5.3.0, 0.5.3.1, 0.5.3.2, 0.6.0.0, 0.6.0.1, 0.6.0.2, 0.7.0.0, 0.7.1.0, 0.8.0.0, 0.8.0.1, 0.9.0.0, 0.10.0.0, 0.10.0.1, 0.10.0.2, 0.10.0.3, 1.0.0.0, 1.1.0.0, 1.1.0.1, 1.2.0.0, 1.2.0.1, 1.2.0.2, 1.3.0.0, 1.3.0.1, 1.4.0.0, 1.5.0.0, 1.5.0.1, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.7.0, 1.7.1, 1.7.2, 1.8.0, 1.9.0, 1.10.0 (info)
Change log changelog.md
Dependencies aeson (>=0.11), base (>=4.7 && <5), bytestring (>=0.10), containers (>=0.5), file-embed (>=0.0.8), filepath (>=1.3), hashable (>=1.2), hjsonpointer (>=1.1), http-client (>=0.4.30), http-types (>=0.8), pcre-heavy (>=1.0), profunctors (>=5.0), protolude (>=0.1.10), QuickCheck (>=2.8), scientific (>=0.3), semigroups (>=0.18), text (>=1.1), unordered-containers (>=0.2), vector (>=0.10) [details]
License MIT
Author Ian Grant Jeffries
Maintainer ian@housejeffries.com
Category Data
Home page https://github.com/seagreen/hjsonschema
Uploaded by seagreen at 2018-01-16T05:18:41Z
Distributions
Reverse Dependencies 6 direct, 1 indirect [details]
Downloads 32470 total (109 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2018-01-16 [all 1 reports]

Readme for hjsonschema-1.7.2

[back to package description]

hjsonschema logo

A Haskell implementation of JSON Schema (Draft 4).

Hackage / GitHub / Travis CI

Notes

  • As of 2017 json-schema-org has begun releasing new drafts of the standard. Once this work stabilizes hjsonschema will add coverage for the latest draft.

  • Requires pcre (pkgs.pcre in Nixpkgs).

  • Schemas with circular references can cause infinite loops. hjsonschema does loop detection but it may not be solid yet -- please open an issue if you find a situation where it fails.

Example

See here.

Tests

Run all tests:

stack test

Run only local tests:

stack test hjsonschema:local

Run remote tests (makes GETs to json-schema.org, also temporarily starts an HTTP server on port 1234):

stack test hjsonschema:remote

Details

Goals

  • Be a correct and fast implementation of the spec.

  • Be a useful reference for implementers in other languages. Haskell's high level nature, expressive type system and referential transparency suit this purpose well.

Issues

  • Doesn't pass all of the tests in the language agnostic test suite. See the issue list for details.

  • Uses the pcre-heavy regular expression library for the "pattern" validator. It should use a library based on the ECMA 262 regex dialect, which the spec requires.

  • Currently doesn't support the optional "format" validators.

Vendoring

  • JSON-Schema-Test-Suite is vendored from commit # c1b12bf699f29a04b4286711c6e3bbfba66f21e5 here.

  • src/draft4.json is from commit # c1b12bf699f29a04b4286711c6e3bbfba66f21e5 here. The root ref in remote ref test has been modified to fix #175.

  • .travis.yml was created with make_travis_yml_2.hs commit # ea6c7d177a97bfbfb2fdc4deba943d60d2aff199.

Credits

TJ Weigel created the logo.

Tim Baumann wrote aeson-schema, on which hjsonschema's test code and its implementation of SchemaGraph were based.

Julian Berman maintains the fantastic language agnostic test suite.