SolidStart on AWS with SST

We are going to create a SolidStart app, add an S3 Bucket for file uploads, and deploy it to AWS using SST.

View source

You can view the source of this example in our repo.

Before you get started, make sure to configure your AWS credentials.

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1. Create a project

Let’s start by creating our project.

npm init solid@latest my-solid-app
cd my-solid-app

We are picking the bare, and TypeScript options.

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Init SST

Now let’s initialize SST in our app.

npx sst@latest init
npm install

Select the defaults and pick AWS. This’ll create a sst.config.ts file in your project root.

It’ll also ask you to update your app.config.ts with something like this.

app.config.ts

export default defineConfig({
  server: {
    preset: "aws-lambda-streaming",
  },
});

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Start dev mode

Run the following to start dev mode. This’ll start SST and your SolidStart app.

npx sst dev

Once complete, click on MyWeb in the sidebar and open your SolidStart app in your browser.

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2. Add an S3 Bucket

Let’s add a public S3 Bucket for file uploads. Update your sst.config.ts.

sst.config.ts

const bucket = new sst.aws.Bucket("MyBucket", {
  public: true
});

Add this above the SolidStart component.

Link the bucket

Now, link the bucket to our SolidStart app.

sst.config.ts

new sst.aws.SolidStart("MyWeb", {
  link: [bucket],
});

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3. Generate a pre-signed URL

When our app loads, we’ll generate a pre-signed URL for the file upload and use it in our form. Add this below the imports in src/app.tsx.

src/app.tsx

async function presignedUrl() {
  "use server";
  const command = new PutObjectCommand({
    Key: crypto.randomUUID(),
    Bucket: Resource.MyBucket.name,
  });
  return await getSignedUrl(new S3Client({}), command);
}

export const route = {
  load: () => presignedUrl(),
};

Tip

We are directly accessing our S3 bucket with Resource.MyBucket.name.

Add the relevant imports.

src/app.tsx

import { Resource } from "sst";
import { createAsync } from "@solidjs/router";
import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
import { S3Client, PutObjectCommand } from "@aws-sdk/client-s3";

And install the npm packages.

npm install @solidjs/router @aws-sdk/client-s3 @aws-sdk/s3-request-presigner

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4. Create an upload form

Add a form to upload files to the presigned URL. Replace the App() component in src/app.tsx with:

src/app.tsx

export default function App() {
  const url = createAsync(() => presignedUrl());

  return (
    <main>
      <h1>Hello world!</h1>
      <form
        onSubmit={async (e) => {
          e.preventDefault();

          const file = (e.target as HTMLFormElement).file.files?.[0]!;

          const image = await fetch(url() as string, {
            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>
    </main>
  );
}

Head over to the local app in your browser, http://localhost:3000 and try uploading an image. You should see it upload and then download the image.

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5. Deploy your app

Now let’s deploy your app to AWS.

npx sst deploy --stage production

You can use any stage name here but it’s good to create a new stage for production.

Congrats! Your site should now be live!

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Connect the console

As a next step, you can setup the SST Console to git push to deploy your app and monitor it for any issues.

You can create a free account and connect it to your AWS account.