Question 1

How to integrate Juniper with Actix-web?

Accepted Answer

Use the juniper_actix crate provided by Juniper, which includes handlers for GraphQL endpoints. Add it as a dependency, define your schema using Juniper's macros, and follow the examples in the repository to set up routes easily.

Question 2

Juniper vs async-graphql: which is better for Rust?

Accepted Answer

Juniper excels in type safety and framework integrations, while async-graphql might offer different ergonomics for async patterns. Juniper's code-first approach contrasts with async-graphql's flexibility, so choose based on your preference for stability and schema design methodology.

Question 3

Does Juniper support GraphQL subscriptions?

Accepted Answer

Juniper claims full GraphQL spec compliance, which includes subscriptions, but the README doesn't detail it prominently. You may need to implement custom resolvers or rely on community extensions, so check the documentation for up-to-date guidance.

Question 4

How do I make a field nullable in Juniper?

Accepted Answer

Since Juniper defaults to non-null types, use Option in your Rust structs to represent nullable GraphQL fields. For example, a field of type Option will map to a nullable String in the GraphQL schema, as explained in the features section.

Question 5

Is Juniper production-ready given it's not 1.0?

Accepted Answer

Juniper is used in production by some teams, but the README cautions about API instability. It's stable for core features, but be prepared for potential breaking changes in minor updates, so assess risk tolerance for your project.

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