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 execution context and data loaders. GraphQL context for request-scoped data

di

Dependency injection integration for GraphQL handlers. Dependency injection support for GraphQL resolvers

http

Re-export of async_graphql::http module for HTTP integration utilities such as playground_source and GraphQLPlaygroundConfig. A helper module that supports HTTP

resolvers

Resolver implementations for queries and mutations. GraphQL resolvers

schema

Schema definition, query limits, and built-in types.

subscription

Real-time GraphQL subscriptions with event broadcasting.

types

GraphQL scalar and input type definitions. GraphQL type definitions

Structs

Error

An error with a message and optional extensions.

ID

ID scalar

Request

GraphQL request.

Schema

GraphQL schema.

Traits

ErrorExtensions

An error which can be extended into a Error.

Type Aliases

Context

Context object for resolve field

FieldError

An alias of async_graphql::Error. Present for backward compatibility reasons.

GqlResult

An alias for Result<T, Error>.

Attribute Macros

Object

Subscription

graphql_handler

Attribute macro for GraphQL resolvers with dependency injection support

Derive Macros

Enum

InputObject

MergedObject

MergedSubscription

SimpleObject