monad-validate: A monad transformer for data validation.

[ control, library ] [ Propose Tags ]

Provides the ValidateT monad transformer, designed for writing data validations that provide high-quality error reporting without much effort. ValidateT automatically exploits the data dependencies of your program—as encoded implicitly in uses of fmap, <*>, and >>=—to report as many errors as possible upon failure instead of completely aborting at the first one. See Control.Monad.Validate for more information.


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Versions [faq] 1.0.0.0, 1.1.0.0, 1.2.0.0
Change log CHANGELOG.md
Dependencies base (>=4.12 && <5), exceptions (>=0.9 && <1), monad-control (==1.*), mtl, transformers (>=0.5.6), transformers-base (==0.*) [details]
License ISC
Copyright 2019 Hasura
Author Alexis King <lexi.lambda@gmail.com>
Maintainer Alexis King <lexi.lambda@gmail.com>
Category Control
Home page https://github.com/hasura/monad-validate#readme
Bug tracker https://github.com/hasura/monad-validate/issues
Source repo head: git clone https://github.com/hasura/monad-validate
Uploaded by lexi_lambda at Sat Aug 10 03:29:36 UTC 2019
Distributions NixOS:1.2.0.0
Downloads 84 total (84 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2019-08-10 [all 1 reports]

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Readme for monad-validate-1.2.0.0

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monad-validate

A Haskell library providing the ValidateT monad transformer, designed for writing data validations that provide high-quality error reporting without much effort. ValidateT automatically exploits the data dependencies of your program—as encoded implicitly in uses of fmap, <*>, and >>=—to report as many errors as possible upon failure instead of completely aborting at the first one.

See the documentation on Hackage for more information and examples.