Crate reinhardt_graphql 

GraphQL support for Reinhardt framework

This crate provides GraphQL API support for the Reinhardt framework.

Features

• graphql-grpc: GraphQL facade over gRPC for Query/Mutation
• subscription: gRPC-based Subscriptions (Rust 2024 compatible)
• di: Dependency injection support for GraphQL resolvers
• full: All features enabled

Dependency Injection

Enable the di feature to use dependency injection in GraphQL resolvers:

[dependencies]
reinhardt-graphql = { version = "0.1", features = ["di"] }

Then use the #[graphql_handler] macro:

#[Object]
impl Query {
    async fn user(&self, ctx: &Context<'_>, id: ID) -> Result<User> {
        user_impl(ctx, id).await
    }
}

#[graphql_handler]
async fn user_impl(
    ctx: &Context<'_>,
    id: ID,
    #[inject] db: DatabaseConnection,
) -> Result<User> {
    // db is automatically resolved
    db.fetch_user(&id).await
}

Re-exports

pub use context::ContextError;

pub use context::DataLoader;

pub use context::GraphQLContext;

pub use context::LoaderError;

pub use schema::AppSchema;

pub use schema::CreateUserInput;

pub use schema::Mutation;

pub use schema::Query;

pub use schema::QueryLimits;

pub use schema::User;

pub use schema::UserStorage;

pub use schema::create_schema;

pub use schema::create_schema_with_limits;

pub use schema::validate_query;

pub use subscription::DEFAULT_CHANNEL_CAPACITY;

pub use subscription::EventBroadcaster;

pub use subscription::SubscriptionRoot;

pub use subscription::UserEvent;

pub use di::GraphQLContextExt;

pub use di::SchemaBuilderExt;

Modules

context

GraphQL context for request-scoped data

di

Dependency injection support for GraphQL resolvers

resolvers

GraphQL resolvers

schema

subscription

types

GraphQL type definitions

Attribute Macros

graphql_handler

Attribute macro for GraphQL resolvers with dependency injection support