Other Languages

Varlock provides support for multiple programming languages through its language-specific implementations. This guide covers how to use Varlock with different programming languages.

Python

Installation

pip install varlock

Usage

from varlock import Varlock

varlock = Varlock({
    'spec': {
        'PORT': {'type': 'number', 'required': True},
        'API_KEY': {'type': 'string', 'secret': True}
    }
})

varlock.load()
port = varlock.env.PORT
api_key = varlock.env.API_KEY

Go

Installation

go get github.com/dmno-dev/varlock

Usage

package main

import (
    "github.com/dmno-dev/varlock"
)

func main() {
    varlock := varlock.New(varlock.Config{
        Spec: map[string]varlock.Spec{
            "PORT": {Type: "number", Required: true},
            "API_KEY": {Type: "string", Secret: true},
        },
    })

    varlock.Load()
    port := varlock.Env.PORT
    apiKey := varlock.Env.API_KEY
}

Ruby

Installation

gem install varlock

Usage

require 'varlock'

varlock = Varlock.new(
  spec: {
    PORT: { type: 'number', required: true },
    API_KEY: { type: 'string', secret: true }
  }
)

varlock.load
port = varlock.env.PORT
api_key = varlock.env.API_KEY

Java

Installation

Add to your pom.xml:

<dependency>
    <groupId>dev.dmno</groupId>
    <artifactId>varlock</artifactId>
    <version>1.0.0</version>
</dependency>

Usage

import dev.dmno.varlock.Varlock;

public class App {
    public static void main(String[] args) {
        Varlock varlock = new Varlock.Builder()
            .spec(Map.of(
                "PORT", new Spec("number", true),
                "API_KEY", new Spec("string", true, true)
            ))
            .build();

        varlock.load();
        int port = varlock.getEnv().getPort();
        String apiKey = varlock.getEnv().getApiKey();
    }
}

Common Features Across Languages

All language implementations provide:

1. Type safety
2. Validation
3. Secret management
4. Environment separation
5. Documentation generation

Language-Specific Considerations

Python

• Uses Python type hints
• Integrates with Python’s logging system
• Supports async/await

Go

• Strong type system
• Concurrent-safe operations
• Standard library integration

Ruby

• Ruby-like syntax
• Rails integration
• Gem ecosystem support

Java

• Spring Boot integration
• Maven/Gradle support
• Enterprise features

Next Steps

• Learn about security best practices
• Explore secrets management
• Check out JavaScript ecosystem integration