GetFileByServerRelativePath API wont honor Range Header, not able to receive range input stream

Question

I am using following api to get inputstream of a file in sharepoint. <MainURL>/GetFileByServerRelativePath(decodedUrl='PathtoFile/ORGANIZATION_202306101632.csv')/$value

I have tried passing a header Range with value bytes=0-100. Even after sending this, the inpurstream returned is complete file and not honoring the bytes that I requested for.

How should I make it work?

Answer 1

Hi @Vineeth Kumar

Thank you for reaching out to our Q&A forum.

After doing some research, GetFileByServerRelativePath endpoint is designed to download the full content of the file which result in ignoring the range header.

If the server ignores the header, it returns a 200 code and download the full content.

You can read here for more details: Range header - HTTP | MDN

Note: This information is provided as a convenience to you. These sites are not controlled by Microsoft, and Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please ensure that you fully understand the risks before using any suggestions from the above link.

I also found that Graph API does support downloading with range header. If possible, you can consider using this: Download driveItem content - Microsoft Graph v1.0 | Microsoft Learn

I hope this information helps.

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