graphql-language-service-utils

parseGraphQL

This feature allows you to parse a GraphQL query string into an Abstract Syntax Tree (AST). The code sample demonstrates how to parse a simple GraphQL query.

const { parse } = require('graphql-language-service-utils');
const query = `query { user(id: 1) { name } }`;
const parsedQuery = parse(query);
console.log(parsedQuery);

validateGraphQL

This feature allows you to validate a GraphQL query against a given schema. The code sample demonstrates how to validate a simple GraphQL query using a schema.

const { validate } = require('graphql-language-service-utils');
const { buildSchema } = require('graphql');
const schema = buildSchema(`type Query { user(id: ID!): User } type User { id: ID! name: String }`);
const query = `query { user(id: 1) { name } }`;
const errors = validate(schema, parse(query));
console.log(errors);

formatError

This feature allows you to format GraphQL errors in a standardized way. The code sample demonstrates how to format a simple error message.

const { formatError } = require('graphql-language-service-utils');
const error = new Error('Something went wrong');
const formattedError = formatError(error);
console.log(formattedError);