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Prerequisites

To get the most out of this guide, you’ll need to: Prefer watching a video? Check out our video walkthrough below.

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1. Install

Get the Resend Node.js SDK. 
npm install resend

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2. Create an email template

Start by creating your email template on components/email-template.tsx.
components/email-template.tsx
import * as React from 'react';

interface EmailTemplateProps {
  firstName: string;
}

export function EmailTemplate({ firstName }: EmailTemplateProps) {
  return (
    <div>
      <h1>Welcome, {firstName}!</h1>
    </div>
  );
}

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3. Send email using React

Create an API file under pages/api/send.ts if you’re using the Pages Router or create a route file under app/api/send/route.ts if you’re using the App Router. Import the React email template and send an email using the react parameter. 
import type { NextApiRequest, NextApiResponse } from 'next';
import { EmailTemplate } from '../../components/EmailTemplate';
import { Resend } from 'resend';

const resend = new Resend(process.env.RESEND_API_KEY);

export default async (req: NextApiRequest, res: NextApiResponse) => {
  const { data, error } = await resend.emails.send({
    from: 'Acme <onboarding@resend.dev>',
    to: ['delivered@resend.dev'],
    subject: 'Hello world',
    react: EmailTemplate({ firstName: 'John' }),
  });

  if (error) {
    return res.status(400).json(error);
  }

  res.status(200).json(data);
};

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4. Try it yourself

Next.js Example (Pages Router)

See the full source code.

Next.js Example (App Router)

See the full source code.