Persistence on wasm target. :wave: hello, I was ...

# multiplatform

[Ondrej Stanek]

Persistence on wasm target.

👋 hello, I was wondering 🤔 if there is a library that supports persistence across desktop,ios, android and wasm targets. I want to use sqldelight, in future, which still does not work with wasm. But in the meantime I would like to use some library at least to store REST responses persistently. Any recommendations? I will update once I find it.

[Aslam Hossin]

Realm is a mobile database that supports object-oriented data modeling. It can be used to store complex data structures and relationships. Realm supports all of the platforms you mentioned, including WASM.

[John O'Reilly]

I don't believe Realm supports Wasm yet

[John O'Reilly]

https://kotlinlang.slack.com/archives/C6J79CSDP/p1713182234864429?thread_ts=1713182234.864429&cid=C6J79CSDP

[Ondrej Stanek]

I wanted to avoid Realm and also could not see the wasm support which is the main issue. I am really waiting for SQL delight to be working. So I need some simple solution in the meantime like a key value store. KStore library seems usable possibly with some wrapper around it for expect actual and using localStorage on Wasm.

[Aslam Hossin]

I see! If your need is to store a small amount of data, you can try Jetpack DataStore, which serves as a multiplatform persistent solution. For reference, you can view my solution in the following PR. I believe it also supports Wasm.

[Ondrej Stanek]

Thanks for the code example! I guess I ll have to create quite some boilerplatte to make it work on wasm. But it seems this approach should work. I ll come back.

[Ondrej Stanek]

Thanks @Aslam Hossin for the suggestion, it worked out very well, lot of expect actual boilerplate for all platforms. And custom local storage implementation for wasm.

I like it so much I will possibly follow the same approach to implement sql delight and use indexed db in the meantime.