What are the basics of Apollo Client caching?

What are the basics of Apollo Client caching?

Apollo Client caching is a powerful feature that helps manage and optimize data fetching in your application. It stores the results of GraphQL queries in memory, allowing for faster access and reducing the need for repeated network requests.

How does the cache work with queries?

When you execute a query, Apollo Client first checks the cache to see if the data is already available. If it is, it returns the cached data immediately. If not, it fetches the data from the server and then stores it in the cache for future use.

Can I customize the caching behavior?

Yes, you can customize caching behavior using various policies like 'cache-first', 'network-only', or 'cache-and-network'. This allows you to control how Apollo Client interacts with the cache and the server.

What happens if the data changes on the server?

If the data changes on the server, you can use cache invalidation techniques or refetch queries to ensure that your client has the most up-to-date data.