Introduction to the Key Option

Lesson Setup: Random User API Endpoint

API Endpoint Definition and Query String

Simulating Network Delay

Calling useFetch with lazy: true

Demonstrating lazy: true Caching with useFetch

useFetch Default Key Generation (URL-based)

Cache Behavior on Navigation with Default Key

Preventing Stale Data with Unique useFetch Key

Importance of Consistent Keys for Stale Data

Impact of Changing URL on useFetch Cache

No Stale Data with Dynamic URLs and useFetch

useFetch's Key Relies on URL

Overriding useFetch Key for Consistent Caching

Complete Control over Caching with key and lazy: true

Key Usage with useFetch Summary

Transition to useAsyncData

Using useAsyncData with a Callback Function

useAsyncData Displays Stale Data by Default

useAsyncData Key Generation (File & Line Number)

Consistent Key in useAsyncData Leads to Stale Data

Providing a Custom Key to useAsyncData

Preventing Stale Data with Unique useAsyncData Key

Demonstration of Unique Key in useAsyncData

Summary of Key Usage for Stale Data Control

Next Lesson: Get Cached Data Option