Send emails with Ruby

Prerequisites

To get the most out of this guide, you’ll need to:

Create an API key
Verify your domain

1. Install

Get the Resend Ruby SDK.

gem install resend

2. Send email using HTML

The easiest way to send an email is by using the html parameter.

index.rb

require "resend"

Resend.api_key = "re_xxxxxxxxx"

params = {
  "from": "Acme <onboarding@resend.dev>",
  "to": ["delivered@resend.dev"],
  "subject": "hello world",
  "html": "<strong>it works!</strong>"
}

sent = Resend::Emails.send(params)
puts sent