resend

Resend + Encore Starter

Send transactional emails with Resend and Encore. Emails are delivered asynchronously via Pub/Sub so your API endpoints stay fast.

What's included

• Resend SDK initialized with an Encore secret
• Pub/Sub topic for async email delivery with automatic retries
• Send endpoint that publishes email events and returns immediately
• Frontend at / with a form to send test emails

Prerequisites

You'll need a Resend account:

1. Create an API key. Go to API Keys and create a new key.
2. Verify a domain (optional for testing). Go to Domains to add your sending domain. Until you verify a domain, the example uses onboarding@resend.dev as the default sender, which works with any Resend API key.

Get started

1. Install Encore if you haven't already:

   curl -L https://encore.dev/install.sh | bash

2. Create a new app from this example:

   encore app create --example=ts/resend

3. Set your Resend API key:

   encore secret set --type local ResendAPIKey

4. Run the app:

   encore run

5. Open http://localhost:4000 to send a test email.

Customizing the sender address

The example defaults to onboarding@resend.dev (Resend's built-in test sender). To use your own address, verify your domain in Resend and update the from field in email/topic.ts.

Learn more

• Resend + Encore integration guide
• Resend documentation
• Encore Pub/Sub docs
• Encore secrets docs