OAuth20Server

This is OAtuh 2.0 Server and OpenId Connect Provider, this OAuth server is not a complete one, but by using it your users can login and register, also they can obtain access token and Idp token too. If you want to create this project from scratch please read my step by step explained article from here

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Get Started

This OAuth server target .NET 6, so clone the project or download it. After that open the downloaded project with your prefere IDE (ex: Visual Studio). In the solution there is a folder named Models, inside this folder there is a class named ClientStore.cs this class accept a list of Clients and Clients here means your applications, or the applications that you would like to intracted with OAuth2 and OpenId Connect protocols.

Here is the signature of the Client object ( you can find it in the Models folder )

    public class Client
    {
        public Client()
        {

        }

        public string ClientName { get; set; }
        public string ClientId { get; set; }

        /// <summary>
        /// Client Password
        /// </summary>
        public string ClientSecret { get; set; }

        public IList<string> GrantType { get; set; }

        /// <summary>
        /// by default false
        /// </summary>
        public bool IsActive { get; set; } = false;
        public IList<string> AllowedScopes { get; set; }

        public string ClientUri { get; set; }
        public string RedirectUri { get; set; }

        public bool UsePkce { get; set; }
    }

How to register your Applications?

As I said in the prevoius step, there is a class named ClientStore and this object has an property named Clients with IEnumerable of Client return type For example, to register one client you should do like so:

 public class ClientStore
   {
       public IEnumerable<Client> Clients = new[]
       {
           new Client
           {
               ClientName = "blazorWasm",
               ClientId = "1",
               ClientSecret = "123456789",
               AllowedScopes = new[]{ "openid", "profile", "blazorWasmapi.readandwrite" },
               GrantType = GrantTypes.Code,
               IsActive = true,
               ClientUri = "https://localhost:7026",
               RedirectUri = "https://localhost:7026/signin-oidc",
               UsePkce = true,
           }
       };
   }

You can add more clients as you need, the one that shown here, is a front-end (ASP.NET Core Application) client and that is very clear from the AllowedScopes property by allowing openid scope which indicate that the OAuth20Server will return Idp token to the registerd application alond side access token.