---
title: OneDrive
description: OneDrive and SharePoint document libraries via Microsoft Graph. Path-addressable, no virtual-key bookkeeping.
peerDeps:
  - "@azure/identity"
  - "@microsoft/microsoft-graph-client"
---

## Installation

`@azure/identity` and `@microsoft/microsoft-graph-client` are optional peer dependencies of `files-sdk` - install alongside the SDK so the adapter's imports resolve at runtime.

```package-install
files-sdk @azure/identity @microsoft/microsoft-graph-client
```

## Usage

OneDrive and SharePoint document libraries via the official `@microsoft/microsoft-graph-client` SDK. Microsoft Graph is path-addressable (`/drive/root:/folder/file.txt`), so the adapter maps virtual keys onto real OneDrive paths - no virtual-key cache, no `fsdkKey` bookkeeping. Five auth shapes (app-only, OAuth refresh token, raw access token, pre-built Graph client, or env-var fallback) and four drive targets (`/me/drive`, `driveId`, `siteId`, `userId`) cover the personal-OneDrive, OneDrive-for-Business, and SharePoint-site-library cases.

```ts lineNumbers
import { Files } from "files-sdk";
import { onedrive } from "files-sdk/onedrive";

// App-only auth (client credentials) into a SharePoint site library.
// Cannot use /me/drive - pass driveId, siteId, or userId instead.
const files = new Files({
  adapter: onedrive({
    clientCredentials: {
      tenantId: process.env.ONEDRIVE_TENANT_ID!,
      clientId: process.env.ONEDRIVE_CLIENT_ID!,
      clientSecret: process.env.ONEDRIVE_CLIENT_SECRET!,
    },
    siteId: process.env.ONEDRIVE_SITE_ID!,
    rootFolderPath: "Uploads",
    // publicByDefault: true → upload() also creates an anonymous-view
    //                       sharing link and url() returns its webUrl.
  }),
});
```

## Options

<AutoTypeTable
  path="../../packages/files-sdk/src/onedrive/index.ts"
  name="OneDriveAdapterOptions"
/>

## Compatibility

| Method            | Status | Notes                                                                                                                                                                                                                                                                                                                                                                                                              |
| ----------------- | :----: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `upload`          |   ⚠️   | Single-PUT simple upload up to OneDrive's 250 MB limit; larger bodies (or any `multipart` upload) automatically switch to a chunked Graph upload session. `multipart.partSize` tunes the chunk size (rounded to a 320 KiB multiple). User `metadata` and `cacheControl` throw - Graph drive items have no native arbitrary-metadata field; use `raw` to set Open Extensions if you need them.                      |
| `download`        |   ✅   |                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `delete`          |   ✅   |                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `list`            |   ⚠️   | Returns immediate-children files only at `rootFolderPath` - no recursion, and subfolders are filtered out. `prefix` is filename-prefix only (matched client-side within the page). Pagination uses Graph's `@odata.nextLink` as the opaque cursor.                                                                                                                                                                 |
| `search`          |   ⚠️   | Built on `listAll` — inherits this adapter's `list` behavior above. Client-side key match (glob, regex, substring, exact).                                                                                                                                                                                                                                                                                         |
| `head`            |   ✅   |                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `exists`          |   ✅   |                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `copy`            |   ⚠️   | Async copy on Graph (`POST /items/{id}/copy` returns 202 + monitor URL). The adapter polls the monitor every 500 ms until status is `completed`/`failed`, capped by `copyTimeoutMs` (default 60_000). On timeout the call throws `Provider`; tune `copyTimeoutMs` for large files.                                                                                                                                 |
| `url`             |   ⚠️   | Throws by default - Graph has no signed URL primitive. With `publicByDefault: true` at construction, `upload()` calls `createLink` (anonymous-view scope) and `url()` returns the share link's `webUrl`. The link is permanent (`expiresIn` ignored) and `responseContentDisposition` always throws - Graph has no Content-Disposition override. Anonymous links are blocked on tenants where admins disable them. |
| `signedUploadUrl` |   ⚠️   | Initiates a Graph upload session via `POST /createUploadSession` and returns the session URL as a one-shot PUT (the session URL is pre-authenticated by Graph itself). `maxSize` and `minSize` throw because Graph does not enforce a server-side `content-length-range` policy on upload sessions; enforce size limits at your application gateway instead.                                                       |