notion2json

A library built with Bun and Notion API client to extract and parse data from a Notion database.

NotionQuerier

This class needs a NOTION_API_SECRET environment variable in your project.

Query a database's pages

const querier = new NotionQuerier()

// Query pages sequentially: uses Notion's `next_cursor` after each call
const pages = await querier.queryAllDatabasePages('478cb452-7694-467a-9470-1934dc35ca87')

// Query pages bidirectionally: uses 2 threads, one querying from the oldest created page upward and one from the most recent page downward
const pages = await querier.queryDatabaseBidirectionally('478cb452-7694-467a-9470-1934dc35ca87')

// Query pages by partition: partitions the database based on the creation date and queries all segments concurrently
const pages = await querier.queryAllDatabasePagesByPartition('478cb452-7694-467a-9470-1934dc35ca87', { decreaseRatio: 2, count: 10 })

// Add options to queried pages (uses NotionClient options)
const pages = await querier.queryAllDatabasePages('478cb452-7694-467a-9470-1934dc35ca87', { filter_properties: ['%3BVB%3D', '%3Caie'] })

Retrieve property configurations

const querier = new NotionQuerier()

// Retrieve id, type and related databaseId (for relation properties only) of every property in the database
const propertyConfigs = await querier.fetchDatabasePropertyConfigs('478cb452-7694-467a-9470-1934dc35ca87')

NotionFormatter

This class needs to be initiated with the pages and propertyConfigs, which can be fetched by the NotionQuerier.

Format database pages

const formatter = new NotionFormatter({ '478cb452-7694-467a-9470-1934dc35ca87': { pages, propertyConfigs } })

// Format all pages in the given database to JSON objects with property ids as keys and property content as values
const formattedPages = formatter.formatDatabase('478cb452-7694-467a-9470-1934dc35ca87')

[!WARNING] You must provide the NotionFormatter with all databases that will be needed to format the pages' properties. This means that if one of the properties in the formatted database is a relation prop towards another database, you will need to provide the NotionFormatter the pointed database as well.

Example

The return value of the formatDatabase() method will be an array of pages. Each of these pages will be an object where keys are property IDs and values are formatted values from the Notion page. For instance, a formatted page would look like:

{
  id:
  qPsw: "Done",
  "qby%3F": [""],
  "s%3C%3Fk": 1,
  "s%5Cxn": ["John Doe"],
  "s_~%7C": [{ text: "[email protected]", url: "mailto:[email protected]" }],
  tgaC: ["1550 Notion Street"],
  tkIR: "",
  ugTi: [],
  vJrh: 1,
  "vm%7Cc": "",
  "z%5EUR": 2023-03-02T13:07:00.000Z,
  "zvJ~": "IDF",
  "%7BXp%5C": [2024-02-26T00:00:00.000Z],
  "%7BloJ": [],
  "%7DsuD": "",
  "~OYv": "",
  title: ["John's Todo List"],
  id: { text: "06cae4ca-5542-444c-adde-b48a2dcca40b", url: "https://www.notion.so/06cae4ca5542444caddeb48a2dcca40b" }
}