Was trying to get `fetch` working and this is as far as I can get using the experimental coroutines ...

# webassembly

[James Ward]

Was trying to get fetch working and this is as far as I can get using the experimental coroutines wasm:

val resp = Promise.resolve(window.fetch("/customers".asDynamic()).asDynamic()).await<org.w3c.fetch.Response>()
val json = Promise.resolve(resp.json().asDynamic()).await<Dynamic>()
println(json)

Can't figure out how to get the json into an Array<Something> - any ideas?

[sdeleuze]

Not yet supported, but you can workaround via a manual wrapper like https://github.com/kowasm/kowasm/blob/main/kotlinx-nodejs-wasm/src/wasmMain/kotlin/org/nodejs/ExternalWrapper.kt.

There is an ongoing refactoring to improve how dynamic types are translated in Kotlin/Wasm, and also ongoing refinement on Promise to Coroutines mechanics, so fetch should be easier to leverage a bit later.

[James Ward]

Thanks! I got it working: https://github.com/jamesward/nks/blob/wasm/bootiful/wasmweb/src/wasmMain/kotlin/Main.kt
Not elegant yet, but understand improvements are still in the works.