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Is morgan ESM-only? Can you require() it?

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Last verified Sep 9, 2026 against morgan@1.12.0. JSON

CommonJS CommonJS — require() works on every Node.js version

morgan ships CommonJS only. require("morgan") works everywhere. import "morgan" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Latest
1.12.0 (Aug 28, 2026)
Module format
CommonJS
Last CommonJS version
1.12.0
TypeScript types
@types/morgan
Node engines
>= 0.8.0
Weekly downloads
11.8M
License
MIT

Does morgan@1.12.0 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("morgan") from a CommonJS file and import "morgan" from an ES module.

Runtimerequire("morgan")import "morgan"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4✓ works✓ works

How to import morgan

ES modules (import)

import morgan from "morgan";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const morgan = require("morgan");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (29 versions; the newest 29 shown).

VersionsFormatFirst published
1.0.0 – 1.12.0CommonJSFeb 8, 2014

Frequently asked

Is morgan ESM-only?

morgan@1.12.0 is a CommonJS package. morgan ships CommonJS only. require("morgan") works everywhere. import "morgan" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import morgan with ES module syntax?

Yes. import morgan from "morgan" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does morgan work in Bun?

Yes. import "morgan" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does morgan ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/morgan".

Links

Other commonjs packages

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