Question 1

How does graphql-jit compare to graphql-js in real-world performance?

Accepted Answer

GraphQL-JIT consistently outperforms graphql-js in benchmarks, especially for queries with many resolvers or nested arrays, but it sacrifices some spec compliance and requires all computed properties to have resolvers.

Question 2

How to set up graphql-jit with a Node.js and Express server?

Accepted Answer

Install the package, parse GraphQL documents using graphql's parse, compile queries with compileQuery, and execute the compiled function in route handlers. The README provides examples in the examples directory.

Question 3

Does graphql-jit support GraphQL subscriptions out of the box?

Accepted Answer

Yes, it includes compiled subscription functions via compiledQuery.subscribe, allowing real-time operations with performance benefits, but ensure your schema meets its resolver requirements.

Question 4

What are the main drawbacks or limitations of graphql-jit?

Accepted Answer

Key limitations include supporting only up to the June 2018 GraphQL spec and requiring resolvers for every computed property, which can complicate schema design and maintenance.

Question 5

Can I use graphql-jit with fast-json-stringify for faster JSON serialization?

Accepted Answer

Yes, by setting compilerOptions.customJSONSerializer to true, it integrates fast-json-stringify to produce optimized JSON output, but this requires additional configuration and compatibility checks.

Question 6

Is graphql-jit suitable for TypeScript projects?

Accepted Answer

It's a JavaScript library that works with TypeScript, but you may need to handle type definitions manually as it lacks built-in TypeScript support, potentially increasing development overhead.

graphql-jit

What is graphql-jit?

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