Here’s how to update a checkbox value in a Notion database using the Notion API.

Each entry is considered to be a page.

So once you have that entry (let’s assume it’s the variable named page), you’ll have its id under page.id.

I’ll also assume you have the Notion client initialized.

import { Client } from '@notionhq/client'

//...

const notion = new Client({ auth: process.env.NOTION_API_KEY })

Then you can do this to set the value of the checkbox named “Ready” to true:

await notion.pages.update({
  page_id: page.id,
  properties: {
    Ready: {
      checkbox: true,
    },
  },
})

Lessons in this unit:

0:	Introduction
1:	Notion API, how to retrieve the entries in a database
2:	Notion API, select all pages with a specific emoji
3:	▶︎ Notion API, update a checkbox value in a database
4:	Notion API, update the icon emoji of a page