Use Next.js with SST
Create and deploy a Next.js app to AWS with SST and OpenNext.
We are going to create a Next.js app, add an S3 Bucket for file uploads, and deploy it to AWS using SST.
Before you get started:
1. Create a Next.js app
Let’s start by creating our app.
npx create-next-app@latest
Init SST
Now let’s initialize SST in our app. Make sure you have the CLI installed.
sst init
This’ll create a sst.config.ts
file in your project root.
Start dev mode
Start the dev mode for your Next.js app and link it to SST.
npm run dev
2. Add an S3 Bucket
Let’s add a public
S3 Bucket for file uploads. Update your sst.config.ts
.
const bucket = new sst.aws.Bucket("MyBucket", { public: true});
Link the bucket
Now, link the bucket to our Next.js app.
new sst.aws.Nextjs("MyWeb", { link: [bucket]});
3. Create an upload form
Add a form client component in components/form.tsx
.
"use client";
import styles from "./form.module.css";
export default function Form({ url }: { url: string }) { return ( <form className={styles.form} onSubmit={async (e) => { e.preventDefault();
const file = (e.target as HTMLFormElement).file.files?.[0]!;
const image = await fetch(url, { body: file, method: "PUT", headers: { "Content-Type": file.type, "Content-Disposition": `attachment; filename="${file.name}"`, }, });
window.location.href = image.url.split("?")[0]; }} > <input name="file" type="file" accept="image/png, image/jpeg" /> <button type="submit">Upload</button> </form> );}
Add some styles.
.form { padding: 1rem; border-radius: var(--border-radius); background-color: rgba(var(--callout-rgb), 0.5); border: 1px solid rgba(var(--callout-border-rgb), 0.3);}
.form input { margin-right: 1rem; font-family: var(--font-mono);}
.form button { appearance: none; padding: 0.5rem 0.75rem; font-weight: 500; font-size: 0.875rem; border-radius: calc(1rem - var(--border-radius)); background: linear-gradient( to bottom right, rgba(var(--tile-start-rgb), 1), rgba(var(--tile-end-rgb), 1) ); border: 1px solid rgba(var(--callout-border-rgb), 1);}
.form button:active:enabled { background: linear-gradient( to top left, rgba(var(--tile-start-rgb), 1), rgba(var(--tile-end-rgb), 1) );}
4. Generate a pre-signed URL
When our app loads, we’ll generate a pre-signed URL for the file upload and render the form with it. Replace your Home
component in app/page.tsx
.
export default async function Home() { const command = new PutObjectCommand({ Key: crypto.randomUUID(), Bucket: Resource.MyBucket.name, }); const url = await getSignedUrl(new S3Client({}), command);
return ( <main className={styles.main}> <Form url={url} /> </main> );}
Add the relevant imports.
import { Resource } from "sst";import Form from "@/components/form";import { getSignedUrl } from "@aws-sdk/s3-request-presigner";import { S3Client, PutObjectCommand } from "@aws-sdk/client-s3";
And install the npm packages.
npm install @aws-sdk/client-s3 @aws-sdk/s3-request-presigner
Head over to the local Next.js app in your browser, http://localhost:3000
and try uploading an image. You should see it upload and then download the image.
5. Deploy your app
Now let’s deploy your app to AWS.
sst deploy
Congrats! Your app should now be live!
Connect the console
As a next step, you can manage your app and view issues in the SST Console.
You can create a free account and connect it to your AWS account.