Looks like standard Kotlinx Serialization 1.6.2 no...

# webassembly

[John O'Reilly]

Looks like standard Kotlinx Serialization 1.6.2 now works for Wasm target (https://github.com/Kotlin/kotlinx.serialization/releases/tag/v1.6.2)

[sdeleuze]

If somebody has some data points about how much Wasm size it adds (with all the dead code elimination options enabled) to for example serialize/deserialize JSON, I would be interested to know.

[John O'Reilly]

have updated Wasm based Compose for Web modules in https://github.com/joreilly/BikeShare and https://github.com/joreilly/PeopleInSpace to use that.....hopefully getting to point soon where those can depend on common dependencies!

[Robert Jaros]

@sdeleuze In my project it adds 102 KB (with serialization only), 166KB (with deserialization only) and 179KB (with both serialization and deserialization).

[sdeleuze]

Looks not too bad, but not amazing for a compile time approach. I would be curious to know if there are low hanging fruit identified by the Kotlin serialization team to reduce the runtime footprint.

[sdeleuze]

Or if optimization would be more on the Wasm specific side.

[bashor]

@Robert Jaros is it prod build? Have you applied binaryen?

[Robert Jaros]

Yes. Production build with agressive binaryen optimization.