Add Store Hydration/Serialization API

[MikeRyanDev]

To better support state serialization and hydration I recommend adding built-in APIs into @ngrx/store. We should try and tackle the two biggest use cases:

• Serializing state for server side rendering
• Persisting state in browser and native platform storage

Ideally, we would separate the process of persistence and serialization into two steps:

1. Transform - Take a state object and perform a transformation on it
2. Store - Take the transformed result and save it

This would allow authors of persistence strategies to focus on persistence without having to reimplement key filtering or Immutable restructuring.

[MattiJarvinen]

Remember handling async storage in saving to indexedDB or some native cordova plugin filesystem etc.

[Matmo10]

Just throwing out ideas while we're on the topic ... but it would be awesome if something like https://github.com/btroncone/ngrx-store-localstorage became a first class part of ngrx itself. Serializing out for SSR and indexedDB usage is definitely important too, but I would guess that the majority of people are just saving bits of state to localstorage. Plus, the library above doesn't work with feature modules.

[Dutchboy]

.... When is this going to be implemented? :-( Wasn't it for 7.0?? (today....)

[Dutchboy]

@brandonroberts When do you think it is going to work?

[itayod]

@brandonroberts may I take this?

[brandonroberts]

@Dutchboy @itayod we're going to put together a design for this first, which we have on our list to look at since version 8 has launched.

[itayod]

@brandonroberts sounds great!
meanwhile, I have posted a blog that might help users to implement it:
https://medium.com/better-programming/sync-your-state-in-local-storage-with-ngrx-9d6ceba93fc0

[biesbjerg]

I'm using ngrx-store-sync that I hacked together. Seems to work for my use case.

Putting it here to maybe give you some ideas how to do it (or not do it :D)

[rickvandermey]

@itayod maybe update your article and repo to 8, because of breaking changes in meta reducer

[itayod]

@rickvandermey Thanks for noticing me! but I think most of the users are still on version 7.X. so I guess update it now could lead to some confusion at this point :)

[LAlves91]

Any news on this one?

[classifieds-dev]

Is there any more news? What have you done to contribute.

[LAlves91]

@classifieds-dev relax man! I was just asking!