Hi all,
I am trying to make sharepoint authentication using oAuth or App-Only authentication, but it gives error "The remote server returned an error: (401) Unauthorized.".
I am using trial sharepoint tenant.
Here is my code snippets:
Using Client id & Client secret:
string siteUrl = "[Sharepoint-Site-URL]";
//Sharepoint App details
string SPClientId = @"[Client-id]";
string SPClientSecret = @"[Client-secret]";
using (ClientContext context = new OfficeDevPnP.Core.AuthenticationManager().GetAppOnlyAuthenticatedContext(siteUrl, SPClientId, SPClientSecret))
{
context.Load(context.Web, t => t.Title);
context.ExecuteQuery();
Console.WriteLine(context.Web.Title);
};
Using AccessToken:
string siteUrl = "[Sharepoint-Site-URL]";
string realm = TokenHelper.GetRealmFromTargetUrl(new Uri(siteUrl));
//Get the access token for the URL.
string accessToken = TokenHelper.GetAppOnlyAccessToken(TokenHelper.SharePointPrincipal, new Uri(siteUrl).Authority, realm).AccessToken;
//Create a client context object based on the retrieved access token
using (ClientContext context = TokenHelper.GetClientContextWithAccessToken(siteUrl, accessToken))
{
context.Load(cc.Web, t => t.Title);
context.ExecuteQuery();
Console.WriteLine(cc.Web.Title);
}
I referred below articles:
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs
https://www.c-sharpcorner.com/article/connect-to-sharepoint-online-site-with-app-only-authentication...
