Produce a diff from immutable objects? about immutable-js

[jareware]

@granmoe FWIW, I'm using https://github.com/intelie/immutable-js-diff and it works really nicely.

[leebyron]

I'm not sure I understand the question, but certainly immutable-js supports applying diffs. I think mergeDeep is probably what you're looking for.

[jsilvestre]

I think the question is more "can I get and store the diff itself so I can store it locally and sync it with a server". I guess it aims at making an web app available offline while handling synchronization easily.

I.E :

vector1 = vector with value a, b
vector2 = vector1.push c
{json formatted} = Immutable.diff vector1, vector2

Where diff returns the smallest set of operations to perform to go from vector1 to vector2 in a machine-readable way.

[leebyron]

Ah, I understand. I think that is out of scope for this project. Such a process should be equally applicable to non-immutable objects. You might want to look into JSONPatch to get started with this.

[slorber]

@steida hi

Have you been successful with json patch?
I'm looking at how json state transitions can be recorded.
This is related to a video I just published: https://www.youtube.com/watch?v=zxN8FYYBcrI

[pedroteixeira]

I've been using: https://github.com/intelie/immutable-js-diff e https://github.com/intelie/immutable-js-patch

[slorber]

thanks @pedroteixeira I didn't know about these projects

[Lendar]

Another lib for immutable.js diffs: https://github.com/elierotenberg/remutable — it's more polished, but currently supports only Map.

[vpryim]

@slorber, you can try transit-js. I used it to serialize the history of application state for next transfering over the wire. You can add a cache on top of this library to serialize immutable data structures efficiently. David Nolan wrote a post about this feature of transit - Transit-js Caching.

[granmoe]

It's been over a year. Any new resources for this? I have a similar need.