Intercepting JavaScript Fetch API requests and responses

Interceptors are code blocks used to preprocess or post-process HTTP calls, aiding in error handling, authentication, and logging. The text explains how to create interceptors in JavaScript using the Fetch API, which doesn't natively support interceptors, by employing techniques such as monkey patching or utilizing the fetch-intercept library. It outlines the implementation of request and response interceptors, including handling errors and modifying requests and responses. The guide also notes that while Node.js lacks native Fetch API support, it can be enabled through additional packages. The fetch-intercept library is highlighted for offering a cleaner API for registering interceptors, although it only supports browsers. The text suggests considering other libraries like Axios for built-in interceptor functionality, and also introduces LogRocket, a tool for debugging JavaScript errors by providing detailed context and user behavior tracking.