kotlin-gradle-templates / sboot-wasm-heap

Quick start kotlin multiplatform Web Assembly DOM access using advanced usage of kotlinc and jsinterop via gradle

This code explains how to generate a .klib from using both jsinterop as well as kotlinc commandline

This code explains how to stub a browser JavaScript to WebAssembly and communicate UTF16 string directly to the heap buffer

Usage

The code is ready to execute provided the folder name is not changed, reason being the folder name is coded in spring boot mappings and gradle fies

 make sure the folder name is "sboot-wasm-heap"
 make sure the folder exists "C:\Users\<user usename>\.konan\kotlin-native-windows-1.3.72\bin"
 make sure the Kotlin vesion is "1.3.72"

If you have gradle in path, then invoke gradle as

 gradle assemble

If you have wrapper for linux

 ./gradlew assemble

If you have wrapper for windows

 .\gradlew assemble

Then execute bellow task to start spring boot

 .\gradlew run

Then launch index.html as http://localhost:8080/index.html

All your println from Web Assembly will print on the browser console
The HTML displayed in the div tag will be printer in browser console using direct buffer access
This also a workaround to communicate string to WebAssembly from JavaScript