kotlin-result VS warp

Author here. I have no idea what you could possibly mean with this comment. The coroutineBinding implementation correctly uses the coroutines API for parallel decomposition of Result bindings, exactly how the Kotlin Corotines guide tells you to (backed by a [Mutex](https://github.com/michaelbull/kotlin-result/blob/master/kot...)). The coroutineBinding isn't even the main selling point of the library, you can use it without using this feature entirely.

Please could you elaborate on what "looking thread safe" means to you? The only portion of the library that supports concurrency *is* thread safe - the unit tests prove it and the use of concurrency primitives such as Kotlin's Mutex are indicative of this. I truly have no idea how you've judged the entirely of the lbirary on whether it's "thread safe" when there is a single function that's related to concurrency and it is very clearly using concurrency primitives.

Sealed classes in combination with a library like https://github.com/michaelbull/kotlin-result will get you what you need. Essentially at that point you'll be doing error handling the way you would in Rust, where a 1-level deep sealed class containing data classes as children act as the root error type and each of its variants. If you have errors coming from two different domains you just create a wrapper error type for each domain.

This is a great result lib: https://github.com/michaelbull/kotlin-result

Lastly I do not like kotlin's Result and we use the kotlin-result library which is more expressive and not tied to Throwable (similar to Arrow's Either).

In my own code, I started to use explicit error handling. I'm currently experimenting with Result (from https://github.com/michaelbull/kotlin-result) and Raise (from https://arrow-kt.io/).

un-related to multiplatform i've found it extremely helpful to wrap things in a Result type. If something can throw an error, it get's a Result return type. It sounds like that would help your use case too. The built in Result may be useful too

This is a better impl.

Using a result type can help to differentiate quite nicely. https://github.com/michaelbull/kotlin-result

kotlin-result

I tried warp [0] and I am unimpressed so far. Pretty complex, limited documentation, buggy. The builder paradigm they used feels pretty constrained and, in my opinion, achieve the opposite of the simplicity it is supposed to bring. I was surprised it is so popular.

Maybe I need more time or a favorable comparison to another framework to appreciate it.

[0] https://github.com/seanmonstar/warp

Have you gone through the (examples)[https://github.com/seanmonstar/warp/blob/master/examples/]? There's actually a lot of explicit instructions here on how to use Warp, and all of them are very straightforward to read (e.g., (this example with route parameters and a POST'ed body)[https://github.com/seanmonstar/warp/blob/master/examples/body.rs])

There are numerous guides how to do custom error messages using the routes .recover() method (including the official one ), but it seems quite inflexible since I can't (seem to?) pass the actual error messages back to user.

$ brew install gabotechs/taps/dep-tree $ git clone https://github.com/seanmonstar/warp $ dep-tree render warp/src/lib.rs lib.rs◁─────────────┬────────────────────────────────┬──────┬┐ │ │ │ ││ ├▷filter/and.rs◁────────────────────────────┐ │ ││ ├▷│filter/map_err.rs◁───────────────────────┤ │ ││ ├▷││filter/or.rs◁───────────────────────────┤ │ ││ ├▷│││filters/mod.rs◁─────────────┬──────┬───────────────────┼┤ ├▷││││test.rs───────┘ │ │ │ │ ││ │ │││││ │ │ │ │ ││ │ │││├│▷filters/addr.rs │ │ │ │ ││ │ │││├│▷│filters/any.rs │ │ │ │ ││ │ │││├│▷││filters/body.rs │ │ │ │ ││ │ │││├│▷│││filters/compression.rs│ │ │ │ ││ │ │││├│▷││││filters/cookie.rs────┘ │ │ │ ││ │ │││├│▷│││││filters/cors.rs │ │ │ ││ │ │││├│▷││││││filters/ext.rs │ │ │ ││ │ │││├│▷│││││││filters/fs.rs │ │ │ ││ │ │││├│▷││││││││filters/header.rs │ │ │ ││ │ │││├│▷│││││││││filters/host.rs │ │ │ ││ │ │││├│▷││││││││││filters/log.rs │ │ │ ││ │ │││├│▷│││││││││││filters/method.rs │ │ │ ││ │ │││├│▷││││││││││││filters/multipart.rs│ │ │ ││ │ │││├│▷│││││││││││││filters/path.rs────┤ │ │ ││ │ │││├│▷││││││││││││││filters/query.rs │ │ │ ││ │ │││├│▷│││││││││││││││filters/reply.rs │ │ │ ││ │ │││├│▷││││││││││││││││filters/sse.rs──┘ │ │ ││ │ │││├│▷│││││││││││││││││filters/trace.rs │ │ ││ │ │││││ ││││││││││││││││││ │ │ ││ ├─────────────────────────▷filter/boxed.rs◁─┤ │ ││ ├─────────────────────────▷│filter/map.rs◁──┤ │ ││ ├─────────────────────────▷││filter/wrap.rs◁┼───────────────┼─┐ │ │││││ ││││││││││││││││││ │││ │ │ │││ ├─────────────────────────────▷filter/mod.rs◁──────┬┬┼───────┤│ │ │││││ ││││││││││││││││ ││ │ │││ │││ │ │││││ ││││││││││││││││ ││ ├▷filter/and_then.rs┤││ │││ │ │││││ ││││││││││││││││ ││ ├▷│filter/or_else.rs┘││ │││ │ │││││ ││││││││││││││││ ││ ├▷││filter/recover.rs┘│ │││ ├───────────────────────────────▷│││filter/service.rs◁──────┼─┤ │ │││││ ││││││││││││││││ ││ ├▷││││filter/then.rs──┤ │││ │ │││││ ││││││││││││││││ ││ ├▷│││││filter/unify.rs┘ │││ │ │││││ ││││││││││││││││ ││ ├▷││││││filter/untuple_one.rs┤││ │ │││││ ││││││││││││││││ ││ │ │││││││ │││ ├───────────────────────────────────────▷reply.rs◁───┬──────────┐ ├───────────────────────────────────────▷│route.rs───│──────┤││ │ │ │││││ ││││││││││││││││ ││ │ │││││││ │ │ │││ │ ├──────────────────────────────────────────▷server.rs◁────────┤ │ │ │││││ ││││││││││││││││ ││ │ │││││││ │ │ │ │││ │ ├────────────────────────────────────────────▷tls.rs─┴──────┘││ │ │ │││││ ││││││││││││││││ ││ │ │││││││ │ │ │ ││ │ ├──────────────────────────────────────────────▷filters/ws.rs◁│ │ ├──────────────────────────────────────────────▷│transport.rs││ │ │ │││ │ ││││││││││││││││ ││ │ │││││││ │ │ │ │ ││ │ ├─────────────────────────────────────────────────▷generic.rs││ │ ├─────────────────────────────────────────────────▷reject.rs─┴┘ │ │ │ │ │ │ ├───────────────────────────────────────────────────▷error.rs │ └───────────────────────────────────────────────────▷redirect.rs┘

What I see on the examples for the warp crate is that the examples do this:

You might want to consider using Alacritty instead of Warp. Warp is VC-funded, macOS only, closed source, and it phones home. They also kinda stole the name of a web framework.

warp server,

Hello, I'd need some help with warp routes since I'm not familiar with the framework. If somebody knows how to do this I'd appreciate very much.

If one were to undertake a project of developing something like this, which is the best web framework for it. I did some cursory research and discovered these back-end frameworks - actix, axum, poem, salvo, warp, gotham and rocket.

We've added support for the warp, salvo & thruster frameworks