ardatan/graphql-tools
Graphql Tools
graphql-tools 是一个 GraphQL 模式编排库和工具包，专为构建、合并和扩展模式而设计。它提供了一个 SDL 优先的模式生成器，可将模式定义语言字符串和解析器映射转换为可执行的模式实例。
该项目具有专用的模式拼接工具，用于将多个独立的 GraphQL 模式组合成单一的统一 API 网关。它还包括一个 GraphQL 模拟引擎，通过根据模式定义生成合成数据来模拟后端。
该工具包涵盖了广泛的组合功能，包括类型定义合并、字段解析委托和模块化模式组织。它支持通过自定义模拟值、用于变更跟踪的状态存储以及基于内省的模拟来模拟 GraphQL API。其他实用程序处理联合和接口解析、重叠类型统一以及用于全局操作的模式级解析器。
Features
- GraphQL Schema Stitching - Combines multiple independent GraphQL schemas into a single unified gateway through programmatic configuration and field delegation.
- Mock Data Generators - Provides an engine that produces synthetic data by traversing schemas and applying type-specific generators.
- GraphQL API Mocking - Creates functional GraphQL schemas that return simulated data to support rapid prototyping and frontend development.
- GraphQL Mocking Engines - Generates synthetic data and simulated GraphQL backends based on schema definitions for rapid prototyping.
- Field Delegation - Implements mechanisms for routing field resolution from a unified schema to specific subschemas for cross-service data fetching.
- Resolver Binding Managers - Provides tools for binding resolver functions to schema fields to handle data fetching for queries and mutations.
- GraphQL Schema Composition Tools - Merges multiple GraphQL type definitions and resolver maps into a single executable schema for a unified API.
- GraphQL Schema Generation - Merges type definitions and resolver functions into a single executable schema to process incoming requests.
- SDL Schema Generation - Builds executable GraphQL schemas by parsing Schema Definition Language strings and binding them to resolver maps.
- GraphQL Schema Management - Provides a comprehensive toolkit for building, merging, and maintaining modular GraphQL schema definitions.
- Schema Stitching Gateways - Combines disparate GraphQL schemas into a unified gateway using programmatic configuration and schema extensions.
- Entity Type Unification - Implements unification of divergent type definitions from multiple services that represent the same entity into a single type.
- GraphQL Mock Value Customization - Allows defining specific return values or generator functions for various scalar and object types during simulation.
- Schema Modularization - Provides mechanisms to organize GraphQL type definitions and resolvers across multiple files for better maintainability.
- Mock Mutation Simulation - Maintains a persistent data cache to ensure that mutations correctly update values for subsequent mocked queries.
- Introspection-Based Mocking - Generates mockable schemas by analyzing the results of GraphQL introspection queries from external APIs.
- GraphQL Resolver Organization - Organizes GraphQL type definitions and resolvers across multiple files to maintain a scalable codebase.
- Union Types - Determines the specific object type of a result when a GraphQL field returns a union or interface.
- Type Definition Merging - Consolidates disparate GraphQL type strings and objects into a single unified definition before schema instantiation.
- Type Extensions - Supports adding new fields to existing types using extension keywords to modularize schema definitions.
