How to download file fromsharepoint using api?

Question

Hi,

I am trying to download files from sharepoint, I have been able to get to the desired folder using https://graph.microsoft.com/v1.0/sites/{siteid}/lists/{listid}/items/{item-id}/ but cannot view the files.

Answer 1

Hello @Ritvik Johar ,

If you are looking to download file uploaded in document library referred as driveItem driveitem-get-content.

GET /sites/{site-id}/drives/{drive-id}/root:/{path-relative-to-root}:/content  
GET /sites/{site-id}/drives/{drive-id}/items/{item-id}/content  

If you are looking to download file uploaded to a list item referred itemAttachment, currently Microsoft Graph doesn't have support for list item attachments, you can upvote feature requested submitted by other Graph users.
Add support for SharePoint List Item Attachments in Graph
Ability to attach files to list items using Graph API.

Hope this helps.
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Answer 2

Here's a link to the documentation on downloading files using Microsoft Graph

Download the contents of a DriveItem

Also, these Microsoft Learn training modules cover how to download files using Microsoft Graph and C# or JavaScript.

Access Files with Microsoft Graph (using C#)

Download and upload files in a JavaScript app with Microsoft Graph

The examples in the Microsoft Learn training modules work with files in OneDrive instead of SharePoint. There are a few ways to build a URL to get a SharePoint file in Microsoft Graph, I'll show you one of them.

Let's say you have files in a library at https://m365x214355.sharepoint.com/sites/contoso/Documents, you can get the items in that library using Microsoft Graph by making a GET request to https://graph.microsoft.com/v1.0/sites/M365x214355.sharepoint.com:/sites/contoso:/lists/Documents/items. The general format of that request is https://graph.microsoft.com/v1.0/sites/{hostname}:{server-relative-path}:/lists/{list-name}/items.

You can then get the specific file by appending its list item Id. For example, https://graph.microsoft.com/v1.0/sites/M365x214355.sharepoint.com:/sites/contoso:/lists/Documents/items/2.

This gives you a List Item resource, but you need a Drive Item resource to be able to download the file. Fortunately, you can easily get the Drive Item by appending /driveitem to the URL. For example, https://graph.microsoft.com/v1.0/sites/M365x214355.sharepoint.com:/sites/contoso:/lists/Documents/items/2/driveitem.

Finally, you can get the content for the file by appending /content to the URL. For example, https://graph.microsoft.com/v1.0/sites/M365x214355.sharepoint.com:/sites/contoso:/lists/Documents/items/2/driveitem/content

Hopefully you'll be able to combine this technique to address the Drive Item resource for a file in SharePoint and the examples in the Microsoft Learn training modules to be able to download files.

Answer 3

Hi @Ritvik Johar
You can use following api to download file.

 GET /drives/{drive-id}/items/{item-id}/content  

I have found a similar issue for you to reference
https://learn.microsoft.com/en-us/answers/questions/601256/downloading-docuemtn-form-sharepoint-documents-usi.html

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