GraphQL parser in WebAssembly, compiled from Rust.
API/AST structure will probably change. No semantic validation at the moment, just syntax (e.g. you can declare a field twice).
Published at npm as graphql-wasm-parser. Add it as dependency and use it like any other js module:
const { parse } = require('graphql-wasm-parser');
const ast = parse("{foo}");
console.log(JSON.stringify(ast));