Project Online/SharePoint Online "401 Unauthorized" error when accessing oData URLs programatically

Hi All, I couldn't authenticate Project Online oData URLs using the below piece of code in a C# console application. It was working fine till yesterday from past 1 year. SecureString passWord =...

SharePoint Online

Daniel Colarossi
May 09, 2018
Hi All,

Another work around is to generate a SharePoint client context and then grab the auth cookie from those credentials and pass it to the rest api request.

authCookie = creds.GetAuthenticationCookie()
req.Headers.Add(HttpRequestHeader.Cookie, authCookie);

Let me know if you need more details

Thanks

Dan

Daniel Colarossi

Copper Contributor

May 09, 2018

Hi All,

Another work around is to generate a SharePoint client context and then grab the auth cookie from those credentials and pass it to the rest api request.

authCookie = creds.GetAuthenticationCookie()

req.Headers.Add(HttpRequestHeader.Cookie, authCookie);

Let me know if you need more details

Thanks

Dan