# Send emails with AWS Lambda

## Prerequisites

Before you start, you'll need:

- A Resend [API key](/guides/get-started-create-an-api-key)
- A [verified domain](/guides/get-started-add-a-domain)

## Guide

::::steps
:::step{title="Create an AWS Lambda function"}
Go to [aws.amazon.com](https://aws.amazon.com) and create a new Lambda function using the Node.js 20.x or later runtime.

![AWS Lambda - New Function](../img/site-assets/mintcdn.com/resend/ABWmVTZIHGIFNTFD/images/aws-lambda-new-function-19sbip1.png)
:::

:::step{title="Edit the handler function"}
Paste the following code into the browser editor:

```js index.mjs theme={"theme":{"light":"github-light","dark":"vesper"}}
const RESEND_API_KEY = 're_xxxxxxxxx';

export const handler = async (event) => {
  const res = await fetch('https://api.resend.com/emails', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Authorization': `Bearer ${RESEND_API_KEY}`,
    },
    body: JSON.stringify({
      from: 'Acme <onboarding@resend.dev>',
      to: ['delivered@resend.dev'],
      subject: 'hello world',
      html: '<strong>it works!</strong>',
    }),
  });

  if (res.ok) {
    const data = await res.json();

    return {
      statusCode: 200,
      body: data,
    };
  }
};
```
:::

:::step{title="Deploy and send email"}
Click on `Deploy` and then `Test` at the top of the screen.

![AWS Lambda - Edit Function](../img/site-assets/mintcdn.com/resend/ABWmVTZIHGIFNTFD/images/aws-lambda-edit-function-zeywv3.png)
:::
::::

## Examples

:::card{title="AWS Lambda Example" href="https://github.com/resend/resend-aws-lambda-example" icon="arrow-up-right-from-square"}
See the full source code.
:::

## Related pages

- [Send emails with Vercel Functions](./get-started-send-with-vercel-functions.md)
- [Send emails with Supabase Edge Functions](./get-started-send-with-supabase-edge-functions.md)
- [Send emails with Cloudflare Workers](./get-started-send-with-cloudflare-workers.md)
- [Send emails with Deno Deploy](./get-started-send-with-deno-deploy.md)

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