Based on the doc from MS
https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/using-csom-for-dotnet-standard
So for .NET core app, what is the alternative way to read/write files stored in SharePoint online? what is the regular file API? does anyone done this? any example code/documentation?
You could use the file.OpenBinaryStream() to read/write files stored in SharePoint, below is my demo code for your reference:
Microsoft.SharePoint.Client.File file = context.Web.GetFileByUrl("https://tenant.sharepoint.com/sites/michael/Shared%20Documents/aa.txt");
context.Load(file);
context.ExecuteQuery();
Microsoft.SharePoint.Client.ClientResult<Stream> mstream = file.OpenBinaryStream();
context.ExecuteQuery();
using (System.IO.StreamReader sr = new System.IO.StreamReader(mstream.Value))
{
String line = sr.ReadToEnd();
Console.WriteLine(line);
}
Very useful! Thank you!
But I would like to know how to upload a (local) file to a Folder.
The key is before the BinaryWriter, but I couldn't figure out.
Can you help me?
Hi @FabioBrandao ,
For your new question, I would suggest you ask a new question in the forum.
Hi @10031103-4153,
Welcome to Microsoft Q&A! Currently, Microsoft Q&A supports the products listed over here (more to be added later on).
Your question about Alternative Save/OpenBinaryDirect methods for CSOM for SharePoint Online is not yet supported on this platform. You could ask about this in the SharePoint Developers forums:https://techcommunity.microsoft.com/t5/sharepoint-developer/bd-p/SharePointDev
Thanks,
Grace
.NET Standard CSOM is now available as of June 23rd on NuGet. You should be able to use this CSOM binary with your .NET Core app.
Unfortunately, MS drop some features, including this one, you can check this video: https://youtu.be/mb6OEDOhVW4, @ 2:35
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