# Is travis-deploy-once ESM-only? Can you require() it?

> travis-deploy-once@5.0.11 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Run a deployment script only once in the Travis test matrix

Last verified Sep 9, 2026 against travis-deploy-once@5.0.11.

travis-deploy-once ships CommonJS only. require("travis-deploy-once") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "travis-deploy-once" 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.

**Deprecated:** We recommend to use Travis Build Stages instead

## What to do

1. require("travis-deploy-once") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6.
2. From ES modules use the default import: import travisDeployOnce from "travis-deploy-once"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: no types are available for travis-deploy-once; declare the module yourself if you need them.
4. This package is deprecated: We recommend to use Travis Build Stages instead

## Facts

- Latest: 5.0.11 (Dec 15, 2018)
- Module format: CommonJS
- Last CommonJS version: 5.0.11
- TypeScript types: none
- Node engines: >=6
- Weekly downloads: 19K
- License: MIT

## Runtime test results for travis-deploy-once@5.0.11

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

| Runtime | require("travis-deploy-once") | import "travis-deploy-once" |
|---|---|---|
| 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 1.4.0 | works | works |

## How to import travis-deploy-once

ES modules:

```js
import travisDeployOnce from "travis-deploy-once";
```

CommonJS:

```js
const travisDeployOnce = require("travis-deploy-once");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (36 versions; the newest 36 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 5.0.11 | CommonJS | Nov 16, 2016 |

## Frequently asked

**Is travis-deploy-once ESM-only?**

travis-deploy-once@5.0.11 is a CommonJS package. travis-deploy-once ships CommonJS only. require("travis-deploy-once") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=6. import "travis-deploy-once" 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 travis-deploy-once with ES module syntax?**

Yes. import travisDeployOnce from "travis-deploy-once" 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 travis-deploy-once work in Bun?**

Yes. import "travis-deploy-once" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does travis-deploy-once ship TypeScript types?**

No. travis-deploy-once ships no type declarations and there is no @types package for it.

## Links

- [travis-deploy-once on npm](https://www.npmjs.com/package/travis-deploy-once)
- [Source repository](https://github.com/semantic-release/travis-deploy-once)
- [HTML version](https://canirequire.com/package/travis-deploy-once/)
- [JSON version](https://canirequire.com/package/travis-deploy-once.json)

---

For scripts and AI agents: any package is at https://canirequire.com/package/<name>/index.md (Markdown) or https://canirequire.com/package/<name>.json (JSON); the site index is https://canirequire.com/llms.txt. Fetch the URL directly; no search needed.