Sanity Studio

This guide shows you how to deploy a Sanity Studio application on Layer0.

Sanity Studio is a single page app (SPA) written in React, where you can configure the document types and input fields, with simple JavaScript objects. This guide will walk you through how to deploy Sanity Studio with Layer0 in four simple steps.


System Requirements

Sign up for Layer0

Deploying requires an account on Layer0. Sign up here for free.

Install the Layer0 CLI

If you have not already done so, install the Layer0 CLI

npm i -g @layer0/cli

Create a new Sanity Studio app

First, install the Sanity CLI:

npm i -g @sanity/cli

To initiate a new project and download the Studio code to your computer, run the following in the command line:

sanity init

The Sanity CLI will walk you through the necessary steps to set up a project, letting you choose a schema template. When you’re done with these steps, the CLI will download the source code and configuration to get you started. To start a local development server, cd into the project folder and run the following command:

sanity start

Configuring your Sanity Studio app for Layer0

Initialize your project

In the root directory of your project run 0 init:

0 init

This will automatically update your package.json and add all of the required Layer0 dependencies and files to your project. These include:

  • The @layer0/core package - Allows you to declare routes and deploy your application on Layer0
  • The @layer0/prefetch package - Allows you to configure a service worker to prefetch and cache pages to improve browsing speed
  • layer0.config.js - A configuration file for Layer0
  • routes.js - A default routes file that sends all requests to Sanity Studio.

Configure the routes

Update routes.js at the root of your project to the following:

// This file was added by layer0 init.
// You should commit this file to source control.

import { Router } from '@layer0/core/router'

export default new Router()
    .static('dist', ({ cache }) => {
            edge: {
                maxAgeSeconds: 60 * 60 * 60 * 365,
                forcePrivateCaching: true,
            browser: {
                maxAgeSeconds: 0,
                serviceWorkerSeconds: 60 * 60 * 24,
    .fallback(({ appShell }) => {

Refer to the Routing guide for the full syntax of the routes.js file and how to configure it for your use case.

Run the Sanity Studio app locally on Layer0

Create a production build of your app by running the following in your project’s root directory:

npm run build

Set default port number for the app to run on 3333:

set PORT= 3333 # windows
export PORT= 3333 # linux

Run Layer0 on your local machine:

0 dev

Load the site


Create a production build of your app by running the following in your project’s root directory:

npm run build

Next, deploy the build to Layer0 by running the 0 deploy command:

0 deploy

Refer to the Deploying guide for more information on the deploy command and its options.

Post Deployment Whitelisting

Once Sanity Studio is deployed, you will need to add it’s URL to Sanity’s CORS origins settings. You can do this from the command line:

sanity cors add --credentials

Alternatively, you can navigate to, find your project and under Settings > API, add the Studio URL to the CORS origins list. You should allow credentials as the Studio requires authentication for added security.