Question 1

TypeGraphQL vs Apollo Server: which is better for TypeScript?

Accepted Answer

TypeGraphQL excels with its declarative, class-based schema that ensures type safety and reduces boilerplate, while Apollo Server offers more flexibility and a larger ecosystem but requires manual type definitions. For teams prioritizing TypeScript integration and developer experience, TypeGraphQL is often the better choice.

Question 2

How to add authentication in TypeGraphQL?

Accepted Answer

Use the @Authorized() decorator on resolvers or fields to add role-based guards, as shown in the README with @Authorized(Roles.Admin). You can integrate custom auth logic via dependency injection or middleware for more complex scenarios.

Question 3

Does TypeGraphQL support GraphQL subscriptions?

Accepted Answer

Yes, TypeGraphQL supports subscriptions through decorators like @Subscription(). You can define subscription resolvers similarly to queries and mutations, enabling real-time updates in your GraphQL API with type-safe implementations.

Question 4

How to handle errors in TypeGraphQL?

Accepted Answer

TypeGraphQL allows custom error handling by extending built-in error classes or using middleware. You can throw instances of Error or use validation decorators to automatically return structured error responses, ensuring consistency across your API.

Question 5

What's the performance overhead of using TypeGraphQL?

Accepted Answer

TypeGraphQL adds minimal overhead through decorator reflection and schema generation, but for most applications, this is negligible compared to the benefits of type safety. However, in high-performance critical paths, direct GraphQL implementations might offer slightly better performance.

Question 6

Can I use TypeGraphQL with Next.js or Express?

Accepted Answer

Yes, TypeGraphQL is framework-agnostic and can be integrated with Express, Apollo Server, or any Node.js framework. For Next.js, you can set up an API route to serve the GraphQL endpoint, though serverless deployments may require additional configuration.

TypeGraphQL

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