How to Integrate AWS Amplify with Your Headless CMS

What is AWS Amplify?

AWS Amplify is an AWS service and tooling set for building, deploying, and hosting web and mobile apps. It combines Amplify Hosting, the Amplify CLI, SDKs, and optional backend resources such as auth, data APIs, storage, and serverless functions. Teams use it when they want a repo-connected deploy flow on AWS without wiring every AWS service by hand.

Why integrate AWS Amplify with a headless CMS?

If your site runs on AWS Amplify but content changes live somewhere else, publishing gets messy fast. A marketer updates a landing page at 10:00 a.m., a developer manually starts a new Amplify build at 10:15 a.m., and the live site finally changes after the build finishes. That might be fine for one page a week. It breaks down when you have campaign pages, product detail pages, docs, release notes, and mobile app content changing every day.

Connecting AWS Amplify to a headless CMS fixes the handoff. Amplify handles the app build, hosting, SSR, routing, and deployment pipeline. The content system handles structured content, editorial workflows, publish events, and APIs. With Sanity, content lives as typed JSON in the Content Lake, GROQ selects exactly the fields your Amplify app needs, and webhooks or Functions can trigger an Amplify Hosting release the moment a document is published.

The trade-off is build timing. If your Amplify app is fully static, every content publish may need a new build, and build duration depends on your framework, page count, and dependencies. For faster updates, you can combine Amplify Hosting with SSR, API routes, or client-side fetching from the Content Lake so frequently changed content doesn’t wait on a full site rebuild.

Architecture overview

A typical setup starts in Sanity Studio. An editor publishes a page, product, article, or campaign document. A Sanity webhook with a GROQ filter, for example `_type in ["page", "post", "product"] && !(_id in path("drafts.**"))`, fires only for published content that matters to the Amplify app. That webhook can call an endpoint hosted by your Amplify app, an AWS Lambda function created with Amplify, or a Sanity Function. The handler receives the mutation payload, uses `@sanity/client` to fetch the complete document from the Content Lake with GROQ, and selects only the fields required by the frontend, such as `title`, `slug`, `seo`, images, and referenced category data. From there, the handler calls AWS Amplify’s Hosting API with `StartJobCommand` from `@aws-sdk/client-amplify`, or it calls an Amplify incoming build webhook URL. Amplify starts a release job for the configured app and branch. When the build completes, end users receive the updated static pages, SSR output, or frontend bundle from Amplify Hosting. If you need server-side processing before the build trigger, Sanity Functions can run that logic on content events without adding a separate worker service.

Common use cases

Step-by-step integration

1. 1

   Set up AWS Amplify Hosting

   Create an AWS account if you don’t have one, open the Amplify console, connect your Git repository, choose your framework build settings, and deploy your first branch. If you’ll trigger builds with the AWS SDK, create IAM credentials with `amplify:StartJob` permission for the target app and branch. Install the packages your webhook handler needs: `npm i @sanity/client @aws-sdk/client-amplify`.

2. 2

   Model content in Sanity Studio

   Create schemas for the documents your Amplify app renders. A `page` schema might include `title`, `slug`, `seoTitle`, `heroImage`, `body`, and `modules`. A `productPage` schema might include references to categories, feature lists, comparison tables, and localized copy. Keep the schema close to your business domain, not just your current page layout.

3. 3

   Query the Content Lake from your Amplify frontend

   In your Next.js, Nuxt, Astro, Gatsby, or React app hosted on Amplify, use `@sanity/client` to fetch published content with GROQ. For static generation, query at build time. For SSR or API routes, query at request time. Use Sanity’s CDN for public published content, and use a token only for draft previews or private datasets.

4. 4

   Create the publish trigger

   Add a Sanity webhook that fires on create, update, and delete events for the document types your app renders. Use a GROQ filter so a product taxonomy edit doesn’t rebuild the whole site unless the frontend needs it. For more control, create a Sanity Function that receives the mutation, fetches related documents, validates the payload, and then calls AWS Amplify.

5. 5

   Call AWS Amplify from the handler

   Use `StartJobCommand` from `@aws-sdk/client-amplify` to start a release job for your Amplify app and branch, or call the incoming build webhook URL generated in Amplify Hosting. Store `AMPLIFY_APP_ID`, `AMPLIFY_BRANCH_NAME`, `AWS_REGION`, and AWS credentials as environment variables in the runtime that hosts the handler.

6. 6

   Test the full publishing path

   Publish a small test document in Sanity Studio, confirm the webhook fired, confirm the Amplify release job started, and verify the deployed page shows the new content. Then test deletes, draft updates, reference changes, and failed builds. In production, verify the Sanity webhook signature before starting a build.

Code example

import { createClient } from "@sanity/client";
import { AmplifyClient, StartJobCommand } from "@aws-sdk/client-amplify";

const sanity = createClient({
  projectId: process.env.SANITY_PROJECT_ID!,
  dataset: process.env.SANITY_DATASET!,
  apiVersion: "2025-01-01",
  token: process.env.SANITY_READ_TOKEN,
  useCdn: false,
});

const amplify = new AmplifyClient({ region: process.env.AWS_REGION });

export async function POST(req: Request) {
  const body = await req.json() as {
    ids?: { created?: string[]; updated?: string[]; deleted?: string[] };
  };

  const id = body.ids?.created?.[0] ?? body.ids?.updated?.[0];
  if (!id) return Response.json({ ok: true, skipped: "no publish id" });

  const page = await sanity.fetch(
    `*[_id == $id][0]{_id,title,slug,seoTitle,"updatedAt":_updatedAt}`,
    { id }
  );

  await amplify.send(new StartJobCommand({
    appId: process.env.AMPLIFY_APP_ID!,
    branchName: process.env.AMPLIFY_BRANCH_NAME ?? "main",
    jobType: "RELEASE",
    jobReason: `Sanity publish: ${page?.slug?.current ?? id}`,
  }));

  return Response.json({ ok: true, queued: true, page });
}

How Sanity + AWS Amplify works

CMS approaches to AWS Amplify

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