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Deno App Development with Kotlin

Deno Kotlin example

🦕 Deno development with Kotlin.

how to build project?

Build the project

$ ./gradlew deno

Run the code with Deno. Please add --no-check for Deno run to disable kotlin module check.

$ deno run --no-check build/deno/@appName@.js

How to invoke Deno stdlib?

Declare “external fun” for Kotlin in src/main/kotlin/deno/lib.std.kt
Add imports in “buildSrc/src/scripts/deps.js”

Import other npm packages or Deno modules

Use dukat to generate Kotlin declarations from xxx.d.ts or maintain lib.xxx.kt manually
import Deno modules in deps.js
import npm packages in deps.js by https://jspm.dev/xxx@version

Use Kotlinx Coroutines library

add dependency in build.gradle.kts

implementation("org.jetbrains.kotlinx", "kotlinx-coroutines-core", "1.3.9")

Add kotlinx-coroutines-core import in templates.js

import Kotlin from "https://jspm.dev/kotlin@1.4.0"
import KotlinxCoroutinesCore from "https://jspm.dev/kotlinx-coroutines-core@1.3.9"

//......

function require(moduleName) {
  if (moduleName === 'kotlin') {
    return Kotlin
  } else if (moduleName === 'kotlinx-coroutines-core') {
    return KotlinxCoroutinesCore;
  } else {
    return {};
  }
}

Dev Tips

Enables continuous build: re-execute tasks when task file inputs change

$ ./gradlew -t deno

deno run --watch flags to watch file changes. Deno 1.4.0+ required

$ deno run --unstable --watch --allow-read --no-check build/deno/@appName@.js

References

Deno: https://deno.land/
Kotlin: https://kotlinlang.org/
lib.deno.d.ts: https://github.com/denoland/deno/releases/latest/download/lib.deno.d.ts
dukat: Converter of TypeScript definition files to Kotlin declarations https://github.com/Kotlin/dukat
jspm: provides a module CDN allowing any package from npm to be directly loaded in the browser and other JS environments https://jspm.org/

Download Details:

Author: tgm-templates

Demo: https://crates.io/crates/tgm

Source Code: https://github.com/tgm-templates/deno-kotlin

#deno #nodejs #node #javascript #kotlin

Deno App Development with Kotlin

2.65 GEEK