jarle/Bun Deploy a Bun application on Render

Deploy a Bun application on Render

Render is a cloud platform that lets you flexibly build, deploy, and scale your apps.

It offers features like auto deploys from GitHub, a global CDN, private networks, automatic HTTPS setup, and managed PostgreSQL and Redis.

Render supports Bun natively. You can deploy Bun apps as web services, background workers, cron jobs, and more.

---

As an example, let's deploy a simple Express HTTP server to Render.

<Steps> <Step title="Step 1"> Create a new GitHub repo named `myapp`. Git clone it locally.

```sh  theme={"theme":{"light":"github-light","dark":"dracula"}}
git clone [email protected]:my-github-username/myapp.git
cd myapp
```

</Step> <Step title="Step 2"> Add the Express library.

```sh  theme={"theme":{"light":"github-light","dark":"dracula"}}
bun add express
```

</Step> <Step title="Step 3"> Define a simple server with Express:

```ts app.ts icon="https://mintcdn.com/bun-1dd33a4e/nIz6GtMH5K-dfXeV/icons/typescript.svg?fit=max&auto=format&n=nIz6GtMH5K-dfXeV&q=85&s=5d73d76daf7eb7b158469d8c30d349b0" theme={"theme":{"light":"github-light","dark":"dracula"}}
import express from "express";

const app = express();
const port = process.env.PORT || 3001;

app.get("/", (req, res) => {
	res.send("Hello World!");
});

app.listen(port, () => {
	console.log(`Listening on port ${port}...`);
});
```

</Step> <Step title="Step 4"> Commit your changes and push to GitHub.

```sh terminal icon="terminal" theme={"theme":{"light":"github-light","dark":"dracula"}}
git add app.ts bun.lock package.json
git commit -m "Create simple Express app"
git push origin main
```

</Step> <Step title="Step 5"> In your [Render Dashboard](https://dashboard.render.com/), click `New` > `Web Service` and connect your `myapp` repo. </Step> <Step title="Step 6"> In the Render UI, provide the following values during web service creation:

|                   |               |
| ----------------- | ------------- |
| **Runtime**       | `Node`        |
| **Build Command** | `bun install` |
| **Start Command** | `bun app.ts`  |

</Step> </Steps>

That's it! Your web service will be live at its assigned onrender.com URL as soon as the build finishes.

You can view the deploy logs for details. Refer to Render's documentation for a complete overview of deploying on Render.