**Issue** > process.binding() is for use by Node.js internal code only. See: https://nodejs.org/api/deprecations.html#DEP0111 **Fix** Use: `_http_common` ```js const { methods, HTTPParser } = require("_http_common"); ``` Example implementation in `undici`: https://github.com/nodejs/undici/pull/564/files **Test equality** ```js const assert = require("assert"); const { methods: deprecatedMethods, HTTPParser: deprecatedHTTPParser } = process.binding("http_parser"); const { methods, HTTPParser } = require("_http_common"); assert.deepStrictEqual(methods, deprecatedMethods); assert.strictEqual(methods, deprecatedMethods); assert.strictEqual( HTTPParser.kOnHeadersComplete, deprecatedHTTPParser.kOnHeadersComplete ); assert.strictEqual( HTTPParser.kOnMessageComplete, deprecatedHTTPParser.kOnMessageComplete ); assert.strictEqual(HTTPParser.kOnBody, deprecatedHTTPParser.kOnBody); ```