Encrypt secrets in Kotlin

Learn how to encrypt your first .env file using Kotlin and dotenvx.

Prerequisites

To get the most out of this guide, you'll need to:

1. Install

Get the dotenvx cli.

curl -sfS https://dotenvx.sh | sh

2. Encrypt env file

Encrypt your .env file.

$ terminal

dotenvx encrypt

3. Inject secrets

Then inject your encrypted secrets at runtime with dotenvx run.

index.kt

fun main() {
  val hello = System.getenv("HELLO") ?: ""
  println("Hello $hello")
}

$ terminal

kotlinc index.kt -include-runtime -d index.jar

dotenvx run -- java -jar index.jar