Web storage

[Leonti Bielski]

Hi!

I would like to use a web storage in my app but it doesn't seem to be a part of a native library.
Should I use ports for this?

Official TodoMVC app seems to be using ports:
https://github.com/evancz/elm-todomvc/blob/master/index.html

I've found this https://github.com/rgrempel/elm-web-api which does exactly what I need (https://github.com/rgrempel/elm-web-api/blob/master/src/WebAPI/Storage.elm specifically) but it's deprecated.

Do I really have to resort to using ports or it's available somewhere in native Elm?

Cheers,
Leonti

[Frederick Yankowski]

I wrote an effect manager for localstorage, available at https://github.com/fredcy/localstorage.

It's not available as a package as it is blocked, waiting review. https://github.com/elm-lang/package.elm-lang.org/issues/178

Since it includes native JS code, installation is a bit awkward. There are some notes in the README.

[Leonti Bielski]

Hi Frederick! This is awesome, thanks!
Is there any documentation on how to write native modules?

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[Frederick Yankowski]

I have not seen any such documentation. One has to work from examples. And the Elm leaders (broadly speaking) actively discourage us from writing native code and effect managers.

[Evan]

Use ports!

Support for "web platform" things will expand as quickly is as manageable with all the other things that need to happen.

[Leonti Bielski]

I completely agree that we shouldn't use Native modules for things that can be written in pure Elm.

If I want runtime errors I will use Javascript, thanks :D

If my understanding is correct browser apis are not possible to write in pure Elm, for example http or web storage for that matter.

I think once those things are covered we won't need to use JS anymore.

But until then if you restrict usage of Native modules to browser apis and make it official we could create "web platform" faster with more contributors.

Any libraries that use native code as wrappers for existing Javascript libraries should be rejected.

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