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graphql-language-service
Advanced tools
An interface for building GraphQL language services for IDEs
The graphql-language-service npm package provides a set of tools and utilities for working with GraphQL language features. It includes functionalities such as parsing, validation, and autocompletion, which are essential for building GraphQL development tools and editors.
Parsing
This feature allows you to parse a GraphQL query string into an Abstract Syntax Tree (AST). The AST can then be used for further analysis or transformation.
const { parse } = require('graphql-language-service-parser');
const query = `query { user(id: 1) { name } }`;
const ast = parse(query);
console.log(JSON.stringify(ast, null, 2));
Validation
This feature allows you to validate a GraphQL query against a schema. It helps in identifying errors and ensuring that the query adheres to the schema's rules.
const { validate } = require('graphql');
const { parse } = require('graphql-language-service-parser');
const { specifiedRules } = require('graphql-language-service');
const schema = /* GraphQLSchema object */;
const query = `query { user(id: 1) { name } }`;
const ast = parse(query);
const errors = validate(schema, ast, specifiedRules);
console.log(errors);
Autocomplete
This feature provides autocompletion suggestions for a given position in a GraphQL query. It is useful for building IDE extensions and other developer tools that enhance the GraphQL development experience.
const { getAutocompleteSuggestions } = require('graphql-language-service-interface');
const schema = /* GraphQLSchema object */;
const query = `query { user(`;
const position = { line: 0, character: 12 };
const suggestions = getAutocompleteSuggestions(schema, query, position);
console.log(suggestions);
The 'graphql' package is the reference implementation of GraphQL for JavaScript. It provides a complete suite of tools for building GraphQL servers and clients, including parsing, validation, and execution. While it offers similar functionalities to 'graphql-language-service', it is more focused on server-side operations and less on language services for development tools.
The 'codemirror-graphql' package provides a set of CodeMirror modes and utilities for working with GraphQL. It includes features like syntax highlighting, linting, and autocompletion. Compared to 'graphql-language-service', it is more focused on integrating GraphQL capabilities into the CodeMirror editor.
FAQs
The official, runtime independent Language Service for GraphQL
The npm package graphql-language-service receives a total of 296,210 weekly downloads. As such, graphql-language-service popularity was classified as popular.
We found that graphql-language-service demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 14 open source maintainers collaborating on the project.
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