Prevent Accidental Mutation of Read-Only Settings
Explore how to prevent accidental mutations in shared configuration objects using the Proxy pattern in Node.js. Learn to intercept write operations, ensuring read-only settings remain immutable throughout the application's lifecycle without freezing or cloning the object. Gain practical skills to safeguard critical values from unintended changes while preserving normal read access.
We'll cover the following...
We'll cover the following...
Problem statement
Your shared configuration object, config, is being mutated by multiple modules, which sometimes overwrites critical values, such as API URLs or version tags. This leads to unpredictable bugs in production. ...