graphql-rust/juniper
Juniper
Juniper is a GraphQL server library and schema engine for Rust. It provides a toolkit for building type-safe APIs by mapping native Rust data structures to GraphQL objects, inputs, and scalars. The project functions as an execution engine that can process queries and mutations either through a network server or as a headless engine for local execution.
The library is runtime-agnostic, allowing it to bridge GraphQL processing with various asynchronous Rust web frameworks. It includes a subscription framework that manages persistent WebSocket connections to push real-time data updates to clients.
The engine covers a broad capability surface including schema language export, shared state context management for dependency injection, and a code-first approach to defining resolvers. It also supports the integration of specialized data types such as decimals and timestamps to avoid manual data conversions.
Features
- GraphQL API Implementations - Provides a full toolkit for implementing type-safe GraphQL APIs by mapping native Rust structures to a schema.
- GraphQL Type Mappings - Maps native Rust language types to GraphQL objects using trait interfaces and procedural macros.
- GraphQL Subscriptions over WebSocket - Implements GraphQL subscriptions over WebSockets to deliver real-time data updates from the server to connected clients.
- Language-Specific Type Mappings - Translates native Rust data structures into GraphQL objects, inputs, and scalars using a code-first approach.
- Field Resolvers - Allows the definition of query and mutation field resolvers that execute business logic and access shared state.
- GraphQL Execution Engines - Provides a GraphQL execution engine capable of processing queries and mutations independently of a network server.
- GraphQL Schema Definitions - Maps internal Rust data models to a typed GraphQL schema using a code-first toolkit.
- GraphQL Servers - Serves as a comprehensive Rust library for building GraphQL servers by defining schemas and resolvers.
- GraphQL Subscriptions - Implements server-side GraphQL subscriptions to push real-time data updates to clients via persistent connections.
- Web Framework Integrations - Binds the GraphQL schema engine to various asynchronous HTTP server frameworks to handle network requests.
- External Type Integrations - Integrates specialized types from external libraries, such as timestamps and decimals, directly into the GraphQL schema.
- Stream Subscriptions - Implements a stream-oriented subscription model to push real-time data updates to clients via WebSockets.
- GraphQL Schema Exports - Generates a standard GraphQL schema language representation (SDL) for use in external tools and documentation.
- Native-to-UI Type Mappings - Maps native Rust data structures into a type-safe GraphQL schema using a code-first approach.
- Resolver Context Injection - Injects a shared user-defined context object into field resolvers to provide access to databases and external services.
- WebSocket Transports - Utilizes WebSocket protocols to facilitate bidirectional, real-time communication for GraphQL data operations.
- GraphQL Resolver Dispatch - Routes GraphQL queries to specific function handlers based on the type definitions mapped in the schema.
- Schema Generation Macros - Uses procedural macros to automatically derive GraphQL schema definitions from native Rust data structures.
- Context Sharing - Injects a shared context object into field resolvers to provide access to databases and external services.
- Web Framework Decoupling - Decouples GraphQL processing logic from the underlying asynchronous runtime to support multiple HTTP frameworks.
- Asynchronous Request Handlers - Processes GraphQL requests using asynchronous handlers to maintain high concurrency across different runtimes.
- GraphQL Integration Middleware - Bridges GraphQL execution logic into asynchronous Rust web frameworks via integration middleware.
- Query Execution Engines - Provides a runtime engine that evaluates GraphQL queries against a schema to produce data without requiring a network server.
- Spec-Compliant GraphQL Servers - Provides a server implementation that adheres to GraphQL specifications for processing HTTP requests.
- Data Processing - GraphQL server library for Rust.
- Server Libraries - GraphQL server library for the Rust ecosystem.
Star history
How this analysis was created: This summary and feature list were written by an AI model that read the project's README and public documentation pages. Each feature links to the documentation it came from; stars, license and language come straight from the GitHub API. The model does not read the source code, and the analysis is refreshed when the project is re-analysed. Learn more on our About page.
