Fetch API Caching: A Complete Guide

The cache option in the fetch() API allows you to control how and when cached responses are used. Here’s a detailed breakdown of each cache mode and their use cases:

1. 'default' (or 'no-cache')

• Behavior: The browser will revalidate any cached response with the server before using it.
• Use Case: When you need to ensure that the data is up-to-date but still want to minimize network requests by leveraging cache when possible.

2. 'no-store'

• Behavior: This mode prevents caching of responses entirely, ensuring that every request goes directly to the server and no cached response is used.
• Use Case: For real-time data or highly sensitive information where staleness cannot be tolerated.

3. 'reload'

• Behavior: Forces a network request even if there’s a valid cache entry available, ensuring that you always get fresh data from the server.
• Use Case: When absolute freshness of data is critical and you want to bypass any cached responses.

4. 'no-cache' (or 'default')

• Behavior: The browser will

Read the full article at DEV Community

---

Want to create content about this topic? Use Nemati AI tools to generate articles, social posts, and more.