You’ll need Node.js version 10.13 or later. This example uses npx and npm for node package management.
Run the following script in your terminal to bootstrap a Next.js app
npx create-next-app@latest resend-attachment-exampleSelect your options for scaffolding. This example uses Typescript, ESLint, and App Router.
Preview the boilerplate application on localhost:3000
cd resend-attachment-example
npm run devInstall Resend Node.js SDK into your project
npm install resendCreate an API key and add it to an .env file in the project root.
RESEND_API_KEY=tHiS_iS_yOuR_kEyAdd a components folder to the app and create a email-template.tsx file with this example code.
import * as React from 'react';
interface EmailTemplateProps {
firstName: string;
}
export const EmailTemplate: React.FC<Readonly<EmailTemplateProps>> = ({
firstName,
}) => (
<div>
<h1>Welcome, {firstName}!</h1>
</div>
);This project uses Html, Head, Font, and Text React Email Components
Install React Email Components:
npm install @react-email/html @react-email/head @react-email/text @react-email/font -EUse these components to customize the email template, make sure to include an import statement.
import * as React from 'react';
import { Html } from "@react-email/html";
import { Head } from "@react-email/head";
import { Font } from "@react-email/font";
import { Text } from "@react-email/text";
interface EmailTemplateProps {
firstName: string;
}
export const EmailTemplate: React.FC<Readonly<EmailTemplateProps>> = ({
firstName,
}) => (
<Html lang="en">
<Head>
<Font
fontFamily="Roboto"
fallbackFontFamily="Verdana"
webFont={{
url: "https://fonts.gstatic.com/s/roboto/v27/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2",
format: "woff2",
}}
/>
</Head>
<div>
<h1>Hey {firstName}!</h1>
<h2>It is great to be seen, in a world full of spam!</h3>
<Text>
There is so much to say about the integrity of a nicely crafted email.
</Text>
</div>
</Html>
);Create your API route by adding route.ts to api/send. Notice that the file uses your API key and Email Template.
import { EmailTemplate } from '../../components/email-template';
import { NextResponse } from 'next/server';
import { Resend } from 'resend';
const resend = new Resend(process.env.RESEND_API_KEY);
export async function POST() {
try {
const data = await resend.emails.send({
from: 'Acme <onboarding@resend.dev>',
to: ['delivered@resend.dev'],
subject: 'Hello Test',
react: EmailTemplate({ firstName: 'Heather' }),
text: 'test'
});
return NextResponse.json(data);
} catch (error) {
return NextResponse.json({ error });
}
}Next, add attachments to your project and route. This example encodes a PDF and CSV file added to the root public/static folder.
import { EmailTemplate } from '../../components/email-template';
import { NextResponse } from 'next/server';
import { Resend } from 'resend';
import path from 'path';
import fs from 'fs';
const resend = new Resend(process.env.RESEND_API_KEY);
async function bufferFile(fileName: string) {
return await fs.promises.readFile(
path.join(process.cwd(), 'public', 'static', fileName)
);
}
export async function POST() {
try {
const pdfBuffer = await bufferFile('sample.pdf');
const csvBuffer = await bufferFile('sample2.csv');
const data = await resend.emails.send({
from: 'Acme <onboarding@resend.dev>',
to: ['delivered@resend.dev'],
subject: 'Hello Test',
attachments: [
{
content: pdfBuffer,
filename: 'sample.pdf',
},
{
content: csvBuffer,
filename: 'sample2.csv'
}
],
react: EmailTemplate({ firstName: 'Heather' }),
text: 'test'
});
return NextResponse.json(data);
} catch (error) {
return NextResponse.json({ error });
}
}Now that the route and email template are added, start the project with npm run dev.
In another terminal, run a curl command to test the endpoint!
curl --location --request POST 'http://localhost:3000/api/send'
If successfully sent, an id will be returned. View your sent emails, logs, and more at Resend.
For more information, look through the documentation and sample projects on Github.
Please join the Resend Discord to connect with the community. Happy emailing!