src/api-endpoints.ts/v1/file_uploads family of API endpoints (File Upload Create, Get, List, Send, Complete)
notion.fileUploads.send builds a FormData object to send fields via multipart/form-dataFormData parameter passing logic in src/Client.ts for the Send File Upload APIexamples/intro-to-notion-api/intermediate/5-upload-file.js example of using the File Upload API to upload and attach a fileFull Changelog: https://github.com/makenotion/notion-sdk-js/compare/f2e166522a1df34fce8075299a09a6c500e25f4a...v3.1.0
View this version on NPM: https://www.npmjs.com/package/@notionhq/client/v/3.1.0
Fetched April 3, 2026