Functions

Deploy custom functions to automate content operations

Sanity Functions enable you to execute custom logic whenever changes occur in your content—all without requiring your own infrastructure.

Create your first function

Create a Document Function

Start building with Functions by deploying a new function to Sanity's infrastructure.

Create a Media Library Asset Function

Start building a function that reacts to changes to a Media Library asset.

Official recipes

Get started with pre-built functions for popular use cases

Core concepts and guides

Introduction

Learn how to take advantage of Functions in your Sanity projects.

Testing functions locally

Simulate Functions locally with real data and an interactive playground.

Configure @sanity/client in Functions

Learn to use the JavaScript client in a Sanity Function.

Add environment variables to functions

Learn to add environment variables to your functions.

Functions cheat sheet

Common patterns and techniques for creating Functions.

Sanity logosanity.ioAll Systems Operational© Sanity 2026
Change site theme