unliftio
| unliftio | amazonka-servant-streaming | |
|---|---|---|
| 5 | 1 | |
| 150 | 1 | |
| 0.0% | - | |
| 3.9 | 10.0 | |
| 4 months ago | over 2 years ago | |
| Haskell | Haskell | |
| MIT License | - |
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unliftio
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UnliftIO, ExceptT and Coercible
FWIW, your suggestion is very similar to a proposed instance for MonadUnliftIO (ExceptT e), except that effectfuls use of the type system means that it doesn't suffer from one of the proposed downsides (dubious interaction with catchAny).
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How introduce `ResourceT` into my stack
Possibly interesting thread here: https://github.com/fpco/unliftio/issues/68
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Is `MonadBaseControl` dead?
Any way quoting u/snoyberg : https://github.com/fpco/unliftio/issues/17#issuecomment-363655106
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Try.do is dangerous
That's not true. It's just writing that instance is a bit tricky: https://github.com/fpco/unliftio/issues/68
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Try.do for recoverable errors in Haskell
However, ExceptT cannot be an instance of MonadUnliftIO – because it necessarily requires multiple exit points. See this discussion which should give you an idea of how hairy and unpredictable this can be.
amazonka-servant-streaming
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How introduce `ResourceT` into my stack
Based on some issues you submitted against the Amazonka repo, I recommend taking a look at https://github.com/aveltras/amazonka-servant-streaming/pull/1 , which shows how to stop ResourceT from closing a streamed response body from AWS before it has been streamed out to the HTTP client.
What are some alternatives?
recursion-schemes - Generalized bananas, lenses and barbed wire
servant - Main repository for the servant libraries — DSL for describing, serving, querying, mocking, documenting web applications and more!
lifted-base - IO operations from the base library lifted to any instance of MonadBase or MonadBaseControl
mmorph - Monad morphisms
Workflow - re-startable monad that recover the execution state from a log, and workflow patterns
managed - A monad for managed values
layers - Modular type class machinery for monad transformer stacks.
exceptional - A simple Haskell type for pure code that could go wrong.
ReplicateEffects - Composable replication schemes of applicative functors in Haskell
effectful - An easy to use, fast extensible effects library with seamless integration with the existing Haskell ecosystem.
effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.
motor - Type-safe effectful state machines in Haskell