The Hook Middleware Composition Pattern

Snippet

The Hook Middleware Composition Pattern

Higher-order hooks (middleware) allow you to inject cross-cutting concerns like logging, analytics, or caching into existing hooks without modifying their internal logic. This promotes highly reusable and decoupled functional logic.

snippet.js

javascript

const withLogging = (useBaseHook) => (args) => {
  const result = useBaseHook(args);
  useEffect(() => {
    console.log('Hook updated:', result);
  }, [result]);
  return result;
};
 
const useLoggedFetch = withLogging(useFetch);

react

Breakdown

const withLogging = (useBaseHook) => (args) => {

A higher-order function that takes a hook and returns a new enhanced hook.

const result = useBaseHook(args);

Executes the original hook logic within the new hook context.

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The Hook Middleware Composition Pattern

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