ASP.NET Core 2.0 Dynamic Authentication
I believe you can achieve your goal assigning function to RedirectToIdentityProvider property.
Invoked before redirecting to the identity provider to authenticate. This can be used to set ProtocolMessage.State that will be persisted through the authentication process. The ProtocolMessage can also be used to add or customize parameters sent to the identity provider.
public void ConfigureServices(IServiceCollection services){ services .AddAuthentication() .AddOpenIdConnect(options => { options.Events.OnRedirectToIdentityProvider = context => { // Retrieve identity from current HttpContext var identity = context.HttpContext.User.Identity; // Lookup for your client_id and client_secret var clientId = "find your client id"; var clientSecret = "find your client secret"; // Assign client_id and client_secret context.ProtocolMessage.ClientId = clientId; context.ProtocolMessage.ClientSecret = clientSecret; return Task.FromResult(0); }; });}Related links