Recommend GHCJS serialization library

[johannesgerer]

Could reflex-platform devs/users share their experiences with different serialization libraries?

Is there a clear winner?

Thanks

[3noch]

That's a bit hard to answer as is. What kind of serialization use case do you have in mind?

[johannesgerer]

For example a Haskell REST Api serving Haskell data structures to a GHCJS powered client.

[johannesgerer]

I settled for persist after consulting this
benchmark, and excluding platform-dependent encoding and flat which could not be compiled on reflex-platform's GHCJS out-of-the-box.

I also tested browsers JSON.parse followed by fromJSVal_aeson, but only saw 2x speedup and ended up preferring the non-FFI solution.

I see significant 10x speedups in my usecase where GHCJS-compiled JS requests Haskell Values generated on and to be serialized by a Haskell server and de-serializes it back into Haskell values.

Deserialization time went from 4s using Aeson (4MB serialized JSON) down to 0.4s when using Persist (3MB serialized).

[3noch]

Wonderful data! Thanks!

[3noch]

To clarify, you found that persist was fastest but persist uses a binary format. You mention that your usecase uses JSON. I don't understand how persist helps here.

[johannesgerer]

You are right, see my updated response