Release/Version1.0: Add some comments and code protection.

Author: Ryujose

src/IOLApiClient.Auth.Repository/Repositories/LoginRepository.cs

@@ -44,10 +44,22 @@ ILogger logger
             _logger = logger;
         }
 
+        /// <summary>
+        /// Login method to obtain token data that will be store in IBearerTokenDataProvider
+        /// </summary>
         public async Task Login()
         {
             _logger.Information($"{_classLogMessageDiagnose} {_methodLoginMessageDiagnose}, Initializing login...");
 
+            if (string.IsNullOrEmpty(_loginRepositorySettings.UserNameIOLClient))
+                throw new InvalidOperationException($"{nameof(ILoginRepositorySettings.UserNameIOLClient)} is null or empty, can't login.");
+
+            if (string.IsNullOrEmpty(_loginRepositorySettings.PasswordIOLClient))
+                throw new InvalidOperationException($"{nameof(ILoginRepositorySettings.PasswordIOLClient)} is null or empty, can't login.");
+
+            if (string.IsNullOrEmpty(_loginRepositorySettings.BaseUrl))
+                throw new InvalidOperationException($"{nameof(ILoginRepositorySettings.BaseUrl)} is null or empty, can't login.");
+
             using (var client = new HttpClient())
             {
                 BuildDefaultHeaders(client);

src/IOLApiClient.Auth.Repository/Repositories/RefreshTokenRepository.cs

@@ -40,8 +40,16 @@ ILogger logger
             _logger = logger;
         }
 
+        /// <summary>
+        /// RefreshToken method that will refresh token data stored in IBearerTokenDataProvider
+        /// </summary>
         public async Task RefreshToken()
         {
+            _logger.Information($"{_classRefreshTokenMessageDiagnose} {_methodRefreshTokenMessageDiagnose}, Initializing refresh token...");
+
+            if (string.IsNullOrEmpty(_bearerTokenData.LoginResponseModel.RefreshToken))
+                throw new InvalidOperationException($"{nameof(IBearerTokenDataProvider.LoginResponseModel.RefreshToken)} is null or empty, can't refresh token.");
+
             using (var client = new HttpClient())
             {
                 BuildDefaultHeaders(client);