Question 1

How to set up Apollo Client with React and GraphQL?

Accepted Answer

Install @apollo/client and graphql packages via npm, create an ApolloClient instance with your GraphQL endpoint, and wrap your app with ApolloProvider. Refer to the getting started guide for detailed examples and configuration.

Question 2

Apollo Client vs urql: which is better?

Accepted Answer

Apollo Client offers more out-of-the-box features like advanced caching and devtools, making it ideal for complex apps. urql is lighter and simpler, better suited for smaller projects or teams wanting minimal overhead.

Question 3

Does Apollo Client work with Vue 3?

Accepted Answer

Yes, Apollo Client is framework agnostic and has official support for Vue 3 through libraries like vue-apollo-composable. This allows seamless GraphQL data fetching and state management in Vue applications.

Question 4

How to clear cache in Apollo Client?

Accepted Answer

Use client.clearStore() to reset the entire cache or client.cache.reset() for more granular control. This is useful for scenarios like user logout or data refresh, and details are in the caching documentation.

Question 5

Is Apollo Client free for commercial use?

Accepted Answer

Yes, Apollo Client is open-source under the MIT license, free for personal and commercial use. However, some Apollo services like GraphOS have paid tiers, but the core client library remains free.

Question 6

How to handle authentication with Apollo Client?

Accepted Answer

Set up authentication by adding headers to your Apollo Client instance, typically using setContext in Apollo Link to include tokens. This integrates with common auth flows like JWT or OAuth for secure GraphQL requests.

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