graphql/graphql-js
Graphql Js
This project is the JavaScript reference implementation of the GraphQL specification. It provides a query engine and schema parser designed to parse, validate, and execute queries to retrieve or mutate data based on a defined schema.
The implementation includes a framework for mapping codebase structures to a strongly typed system and a tool for converting query strings into abstract syntax trees for programmatic analysis.
The library covers the full surface of GraphQL API implementation, including schema definition, language parsing, and query validation. It provides the necessary infrastructure for server development, utilizing a recursive execution engine and resolver-based data fetching to process requests.
Features
- Server Implementations - Serves as the reference JavaScript implementation for building and running GraphQL server endpoints.
- GraphQL Implementations - Provides the core library and engine needed to implement a full GraphQL API.
- Schema Parsers - Includes a dedicated parser to convert GraphQL schema strings into ASTs for validation.
- Language Parsers - Provides a full parser to convert GraphQL query strings into abstract syntax trees.
- Query Engines - Functions as the primary engine that parses, validates, and executes GraphQL queries.
- Query Validators - Implements the validation logic to check queries against a schema's type rules.
- Schema Mapping Frameworks - Provides a framework for mapping codebase structures to a strongly typed system to define available data and relationships.
- Tree-Walking Interpreters - Implements a recursive execution engine that traverses the query AST to resolve data.
- Data Type Validation - Validates that query semantics and types conform to the predefined schema definitions.
- GraphQL AST Parsing - Transforms raw GraphQL queries into ASTs for programmatic analysis and manipulation.
- Query AST Parsers - Converts raw GraphQL query strings into a structured tree of nodes for validation and execution.
- Resolver-Based Fetching - Uses resolver functions to map schema fields to underlying data sources during execution.
- Request Processing Runtimes - Implements the logic to process GraphQL requests and return formatted results.
- Query Execution Engines - Provides the core engine to validate and execute GraphQL queries against a defined schema.
- Schema Definitions - Provides the primary framework for defining structured GraphQL types and relationships.
- GraphQL Clients and Servers - Provides the necessary runtime infrastructure for developing GraphQL servers to process data requests.
- Type System Mappings - Includes a framework for mapping codebase entities to a strongly typed GraphQL system.
- Internal Tree Representations - Uses internal hierarchical tree representations to model GraphQL query structures for analysis.
- Middleware Pipelines - Processes queries through a sequential pipeline of parsing, validation, and execution stages.
- JavaScript Implementations - A reference implementation of GraphQL for JavaScript.
- Web Frameworks - Query language and runtime for APIs.
