Grokking Node.js Design Patterns for Interviews/

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Adapt Configuration Sources

Adapt Configuration Sources

Unify environment, file-based, and remote configuration providers under a single .get(key) interface.

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 ...