Applications.razor for applicants

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Infrastructure/Services/UserDataProvider/IUserDataProvider.cs

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+using VisaApiClient;
+
+namespace BlazorWebAssemblyVisaApiClient.Infrastructure.Services.UserDataProvider
+{
+    public interface IUserDataProvider
+    {
+
+        public ApplicantModel? GetApplicant();
+
+        public string? GetCurrentRole();
+    }
+}

SchengenVisaApi/BlazorWebAssemblyVisaApiClient/Infrastructure/Services/UserDataProvider/UserDataProvider.cs

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+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using VisaApiClient;
+
+namespace BlazorWebAssemblyVisaApiClient.Infrastructure.Services.UserDataProvider
+{
+    public class UserDataProvider(Client client) : IUserDataProvider
+    {
+        private static readonly JwtSecurityTokenHandler tokenHandler = new ();
+
+        public ApplicantModel? GetApplicant()
+        {
+            //todo api action
+            return null;
+        }
+
+        public string? GetCurrentRole()
+        {
+            if (client.AuthToken is null)
+            {
+                return null;
+            }
+
+            var token = tokenHandler.ReadJwtToken(client.AuthToken.Token);
+            var role = token.Claims.FirstOrDefault(claim => claim.Type == ClaimTypes.Role)?.Value;
+
+            return role;
+        }
+    }
+}