Error in Gettoken about learn.forge.viewmodels HOT 5 CLOSED

There's a fair chance, that this error happens, because the API server no longer responds to obsolete TLS versions, and your app is running with defaults that try an older version of TLS.

Try adding this somewhere around the startup code of your app:

        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

from learn.forge.viewmodels.

just to be clear, your question is about 3-legged, but this is the 2-legged tutorial code...right?

about the problem, it is probably happening due TLS migration, please check

https://forge.autodesk.com/blog/upcoming-forge-system-upgrade-tls-12-upgrade-date-moved-oct-31
https://forge.autodesk.com/blog/tls-12-net-developers
https://forge.autodesk.com/blog/tls-12-nodejs-developers

from learn.forge.viewmodels.

Here is the function that I am getting the error in. Is this 3-legged Authentication?

[HttpGet]
[Route("api/forge/oauth/url")]
public string GetOAuthURL()
{
// prepare the sign in URL
Scope[] scopes = { Scope.DataRead };
ThreeLeggedApi _threeLeggedApi = new ThreeLeggedApi();
string oauthUrl = _threeLeggedApi.Authorize(
Credentials.GetAppSetting("FORGE_CLIENT_ID"),
oAuthConstants.CODE,
Credentials.GetAppSetting("FORGE_CALLBACK_URL"),
new Scope[] { Scope.DataRead, Scope.ViewablesRead });

  return oauthUrl;
}

from learn.forge.viewmodels.

I just downloaded the source for 3-legged (which is NOT this repo) and compiled with VS2017, works fine. Please make sure to Rebuild the project.

https://github.com/Autodesk-Forge/learn.forge.viewhubmodels/archive/net.zip

from learn.forge.viewmodels.

There's a fair chance, that this error happens, because the API server no longer responds to obsolete TLS versions, and your app is running with defaults that try an older version of TLS.

Try adding this somewhere around the startup code of your app:

        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

This worked for me. Thanks :)

from learn.forge.viewmodels.