Harness The Power of Headless CMS: A Fullstack Developer's Guide to Integrating Sanity.io with Next.js

Web development has come a long way in the past few years. With the rise of modern JavaScript frameworks like React and Vue.js, developers can build high-performance, scalable, and easily maintainable web applications with ease. However, managing content can be a challenge, especially when dealing with complex websites with multiple pages and dynamic components. That's where headless CMS comes in.

What is Headless CMS?

Headless CMS is a content management system that separates the back end from the front end, allowing developers to manage content without worrying about the presentation layer. Instead of using a monolithic CMS like WordPress or Drupal, developers can use a headless CMS like Sanity.io to manage content and then pull that content into their web applications using a REST or GraphQL API.

Using a headless CMS comes with many benefits, such as:

  • Scalability: Since the front end and back end are separated, you can scale each layer independently.
  • Flexibility: You can use any front-end framework you like, giving you the flexibility to build the web application you envision.
  • Performance: By eliminating unnecessary code, headless CMS can improve performance and speed up your website.
  • Multi-channel: With a headless CMS, you can easily publish content to different channels, such as websites, mobile apps, and social media.

Why Choose Sanity.io?

While there are many headless CMS options available, Sanity.io stands out for its flexibility, powerful query language, and intuitive interface. Sanity.io also offers a Document-oriented Data Model that allows you to store and organize content in a structured way.

Sanity.io is designed to be fully customizable, with a modular architecture that can be extended with your own code. It's ideal for building complex web applications with dynamic content. Additionally, Sanity.io is developer-friendly, with an easy-to-use CLI tool and excellent documentation.

Integrating Sanity.io with Next.js

Next.js is a popular React framework for building server-rendered web applications. By combining Next.js with Sanity.io, you can build high-performance, scalable, and easily maintainable web applications that can handle complex content. Here's how to get started:

Step 1: Set up a new Next.js project

Assuming you already have Node.js installed, navigate to your preferred directory and run the following command to create a new Next.js project:

npx create-next-app my-app

Once the installation is complete, navigate to the project directory:

cd my-app

Next, start the development server:

npm run dev

You should now have a basic Next.js app up and running on http://localhost:3000.

Step 2: Create a new Sanity.io project

Next, create a new project on the Sanity.io website:

  1. Log in to Sanity.io.
  2. Click on "Create New Project".
  3. Enter a name for your project and click "Create Project".

You should now be in your new project dashboard.

Step 3: Install the Sanity.io CLI

Next, you need to install the Sanity.io CLI. Open a new terminal window and run the following command:

npm install -g @sanity/cli

The CLI allows you to manage your Sanity.io project from the command line.

Step 4: Create a new Sanity.io schema

Now it's time to create a new schema for your Sanity.io project. In the terminal window, navigate to your project directory and run the following command:

sanity init

This will create a new Sanity.io schema in your project directory. Follow the prompts to set up your schema.

Step 5: Start the Sanity.io development server

Next, start the Sanity.io development server by running the following command:

sanity start

You should now be able to see the Sanity.io dashboard at http://localhost:3333. Here, you can create and manage content for your web application.

Step 6: Create a new Next.js page

In your Next.js project directory, create a new page called "posts.js" by running the following command:

touch pages/posts.js

This will create a new file called "posts.js" in the "pages" directory. Open this file in your favorite text editor.

Step 7: Fetch content from Sanity.io

Now it's time to fetch content from Sanity.io and display it on the page. Here's an example:

import { groq } from 'next-sanity'
import { getClient } from '../lib/sanity'

const Post = ({ title, body }) => {
  return (

const query = groq`
  *[_type == "post"] {

export const getStaticProps = async () => {
  const client = getClient()
  const posts = await client.fetch(query)

  return {
    props: {

const Posts = ({ posts }) => {
  return (
      {posts.map(post => <Post title={post.title} body={post.body} />)}

export default Posts

In this example, we're using the "groq" query language to fetch posts from Sanity.io. We then use the "getStaticProps" function to fetch the data at build time and pass it as a prop to the "Posts" component. The "Posts" component then maps over the posts and renders a "Post" component for each one.

Step 8: Deploy your web application

Finally, it's time to deploy your web application. There are many ways to deploy a Next.js application, but one popular option is to use Vercel. Simply sign up for a free account, connect your GitHub repo, and deploy your app in just a few clicks.


Using a headless CMS like Sanity.io can supercharge your web development workflow by allowing you to manage content in a flexible and scalable way. By combining Sanity.io with Next.js, you can build high-performance, scalable, and easily maintainable web applications that can handle complex content. The sky's the limit!