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niteshas's avatar
niteshas
Copper Contributor
Jan 20, 2021

Unable to download more than 1GB file from SharePoint Personal site

Hi,

 

We are downloading files from SharePoint site using below API.

 

/_api/web/getFileByServerRelativeUrl('{0}')/$value

 

For download I am using the OpenRead method of WebClient object like client.OpenRead(webUrl). We are using modern authentication (bearer token) for authentication/authorization. For SharePoint Sites (e.g. https://vi***.sharepoint.com/sites/Tea3) it is working fine but for Personal Sites (e.g. https://vi***-my.sharepoint.com/personal/sai_vi***_onmicrosoft_com/Test/Forms/AllItems.aspx) getting Unauthorized error. Both are in same tenant with same ServicePrinciple account.

 

There is another API from CSOM file.OpenBinaryStream(). This is working for both SharePoint Sites and Personal Sites. But it has limitation of download up to 1GB of files only. More than 1GB is not supported with this API.

 

Can you please provide some solution so that I can use the WebClient API for both SharePoint Sites and Personal Sites?

 

Thanks and Regards,

Nitesh Kumar

FileDownload
PersonalSite

2 Replies

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  • kasinaatRMP's avatar
    kasinaatRMP
    Copper Contributor
    May 04, 2022
    Hi,

    I think the scope while acquiring the toke is the problem here.

    For Onedrive : https://<tenant>-my.sharepoint.com
    For Sharepoint : https://<tenant>.sharepoint.com

    By setting this above scope while getting the access_token, I am able to download files from both Sharepoint and Onedrive.

    Hope this helps!
  • kasinaatRMP's avatar
    kasinaatRMP
    Copper Contributor
    May 02, 2022

    Hi, niteshas 

     

    Can you please tell how you are using Bearer token for downloads? I am facing the same issue but my issue is with all the downloads irrespective of the site type. Can you please share how you are getting the Bearer Token?

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