Identity Server Demo

Startup

Create a new Empty ASPNET Core 3.1 Project.

• Add Identity Server 4 nuget packet

• Edit Startup.cs to add IdentityServer 4

• Create Configuration/InMemoryConfig.cs

  InMemoryConfig.cs

       public static class InMemoryConfig
   {
       //RETURN IN MEMORY IDENTITY RESOURCES
       public static IEnumerable<IdentityResource> GetIdentityResources() =>
           new List<IdentityResource>()
           {
               new IdentityResources.OpenId(),
               new IdentityResources.Profile()
           };
  
       //RETURN IN MEMORY USERS
       public static List<TestUser> GetUsers() =>
           new List<TestUser>()
           {
               new TestUser()
               {
                   SubjectId = "fdsfsdfsd",
                   Username = "Andrea",
                   Password = "AndreaPassword",
                   Claims = new List<Claim>()
                   {
                       new Claim("given_name", "Andrea"),
                       new Claim("family_name", "Merlin")
                   }
               },
               new TestUser()
               {
                   SubjectId = "ggjflgdlgdfljg",
                   Username = "Visual",
                   Password = "VisualPassword",
                   Claims = new List<Claim>()
                   {
                       new Claim("given_name", "Visual"),
                       new Claim("family_name", "Studio")
                   }
               }
           };
  
       //RETURN IN MEMORY CLIENTS
       public static IEnumerable<Client> GetClients()
       {
           return new List<Client>()
           {
               new Client()
               {
                   ClientId = "company-employee",
                   ClientSecrets = new[] {new Secret("demopassword".Sha512())},
                   AllowedGrantTypes = GrantTypes.ResourceOwnerPasswordAndClientCredentials,   //flow types
                   AllowedScopes =  { IdentityServerConstants.StandardScopes.OpenId, "companyApi"}
               }
           };
       }
  
       //RETURN API RESOURCES
       public static IEnumerable<ApiResource> GetApiResources() =>
           new List<ApiResource>() { new ApiResource("companyApi", "description") };
      
   }
  
  

  • Add Authenticaton with JWT Bearer via nuget: Microsoft.AspNetCore.Authentication.JwtBearer

  • Add Bearer configuration services.AddAuthentication("Bearer").AddJwtBearer("Bearer", opt => { opt.RequireHttpsMetadata = false; opt.Authority = "https://localhost:5005"; opt.Audience = "companyApi"; });

Integration

• Install dotnet Core Identity Server Templates (from command line)

  dotnet new --install "IdentityServer4.Templates"
  

• Add Identity UI Template (in the project root folder)

  dotnet new is4ui
  

• Add WebApi Resources in InMemoryConfig.cs

Client Test (http post)

• Run the program
• Test authentication with PostMan

• Login with in memory client

Bearer Token Test (http get)

• Test Bearer Token Auth