Lazy-Load a Heavy Service Only When First Used
Discover how to improve your Node.js application's efficiency by implementing lazy-loading for heavy services. Learn to use the Proxy pattern to delay initialization until a service's method or property is first accessed, ensuring resources are used only when needed. This lesson helps you write cleaner, more performant backend code without changing client interactions.
We'll cover the following...
We'll cover the following...
Problem statement
Your system utilizes a heavy-duty data service, DataService, which performs an expensive initialization when it is constructed. This service is always created on startup—even if no code ends up using it—wasting time and memory. ...