Adapt Configuration Sources
Understand how to apply the adapter design pattern to unify different configuration sources in Node.js. Learn to create a single async interface that normalizes synchronous and asynchronous methods, ensuring seamless configuration retrieval across environment variables, JSON files, and remote services without modifying original providers.
We'll cover the following...
We'll cover the following...
Problem statement
Your system reads configuration values from different sources depending on the deployment environment:
Environment variables via
process.env.JSON config file for local development.
Remote config service in production, which fetches values ...