Environments

// Production
const PROD_URL = 'https://api.smartbills.io';

// Pre-Production
const SANDBOX_URL = 'https://sandbox-api.smartbills.io';

// Use environment variable
const BASE_URL = process.env.NODE_ENV === 'production' 
  ? PROD_URL 
  : SANDBOX_URL;

const response = await fetch(`${BASE_URL}/v1/expenses`, {
  headers: {
    'Authorization': `Bearer ${API_KEY}`
  }
});

import os

# Production
PROD_URL = 'https://api.smartbills.io'

# Pre-Production
SANDBOX_URL = 'https://sandbox-api.smartbills.io'

# Use environment variable
BASE_URL = PROD_URL if os.getenv('ENV') == 'production' else SANDBOX_URL

response = requests.get(
    f'{BASE_URL}/v1/expenses',
    headers={'Authorization': f'Bearer {API_KEY}'}
)

// Production
const string PROD_URL = "https://api.smartbills.io";

// Pre-Production
const string SANDBOX_URL = "https://sandbox-api.smartbills.io";

// Use environment variable
var baseUrl = Environment.GetEnvironmentVariable("ENV") == "production" 
    ? PROD_URL 
    : SANDBOX_URL;

var response = await client.GetAsync($"{baseUrl}/v1/expenses");