Error handling in the RIO and UnliftIO world

This page summarizes the projects mentioned and recommended in the original post on /r/haskell

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  • early

    Add early return to any do-expression

  • Chris Done's https://github.com/inflex-io/early plugin is an option that lets you work with functions that just return `Either`.

  • plucky

    Plucky errors and exceptions

  • You will eventually need to get to something like plucky which has polymorphic projection classes that work on "anonymous sums" allowing you to introduce and eliminate error types.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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