apollostack/apollo-client
Apollo Client
Apollo Client is a frontend GraphQL integration layer and client library used to fetch, manage, and cache data from a GraphQL server in web and mobile applications. It functions as a state management framework that synchronizes remote server data with local application state.
The project provides a TypeScript wrapper for executing GraphQL queries and mutations, ensuring type-safe API integration with automatic validation and code completion.
The library manages data fetching and synchronization between the backend and the user interface. It includes capabilities for caching GraphQL results locally to reduce network requests and maintaining consistent application state across the frontend.
Features
- GraphQL Data Fetching - Retrieves and manages data from GraphQL servers to keep the frontend user interface in sync.
- GraphQL Clients - Integrates GraphQL APIs and manages data schemas for use within UI frameworks.
- Query Result Caching - Caches GraphQL query results locally on the device to reduce latency and network requests.
- GraphQL Result Caches - Stores retrieved GraphQL data locally to improve loading speeds and minimize network overhead.
- Frontend State Management - Manages the flow of application data and synchronizes state within the browser.
- Normalized Data Caching - Provides a normalized cache that flattens nested GraphQL responses to prevent data duplication.
- Server State Managers - Synchronizes remote server data with local application state via a normalized cache.
- GraphQL Clients - Provides a dedicated client for executing and managing GraphQL queries and variables against remote endpoints.
- State Syncing Reactivity - Synchronizes application state between the remote GraphQL server and the local client.
- Middleware-Based Request Pipelines - Implements a modular chain of links that intercept and process network requests and responses.
- Type Safety - Enforces data integrity and prevents errors using a strict type system for queries and mutations.
- Reactive Context Tracking - Uses a reactive mechanism to track dependencies and notify components when cached fields update.
- Schema-Driven Type Inference - Automatically derives TypeScript interfaces from GraphQL schemas for static type checking.
- Dependency Tracking - Tracks data dependencies between GraphQL fields and UI components to optimize re-renders.
- Type-Safe API Integrations - Synchronizes GraphQL schemas between client and server to ensure type safety across network boundaries.
- Data Fetching - Caching client for GraphQL data and UI integration.
