Skip to main content

ASP.NET Core environment aware strongly typed configuration in MongoDB

This is targetted to save in MongoDB but the technique can be used in any targetted backend with key value setting based on IConfigurationProvider Data property.

Basically, the provided interface works based Data property having a type as IDictionary<string, string>. So, whatever class we create it has to be serialized based on same. We would simplify this by creating an abstract class to have certain serialization logic.

This is sample setting for the application. If you check the structure,  Setting is the main class and nested items are Azure, Message, Email, Twilio. The key value needs to be composed based on parent and child classes separated by colons.



Just like above, we need to populate settings from our different setting classes.

Implementation can be grouped in these sections.
- Application level configuration classes.
- Registration of configuration on ASP.NET Core.
- Environment level configuration, this would little mixed with above.

Application level configuration classes

Abstract class implementation for serialization and tracking name

 /// <summary>  
 /// To configuration data as per AspNet Core Configuration.  
 /// </summary>  
 public abstract class DataConfigurationObject  
 {  
   /// <summary>  
   /// Initializes a new instance of the <see cref="DataConfigurationObject"/> class.  
   /// </summary>  
   /// <param name="settingName">Name of the setting.</param>  
   public DataConfigurationObject(string settingName)  
   {  
     SettingName = settingName;  
   }  
   /// <summary>  
   /// Gets or sets the name of the parent setting name.  
   /// </summary>  
   /// <value>  
   /// The name of the parent setting name.  
   /// </value>  
   protected string SettingName { get; set; }  
   /// <summary>  
   /// Serializes the implementation for data.  
   /// </summary>  
   /// <param name="data">The application data.</param>  
   protected abstract void Serialize(IDictionary<string, string> data);  
   /// <summary>  
   /// Serialize data based on configuration.  
   /// </summary>  
   /// <returns>The configuration data.</returns>  
   public IDictionary<string, string> ToConfigData()  
   {  
     var value = new Dictionary<string, string>();  
     Serialize(value);  
     return value;  
   }  
 }  

There are three key things to mark from above class:

SettingName  for root level setting name like Azure, Email etc from above-given example.

Serialize for seralization logic implementation on each configuration class.

ToConfigData for returning serialize data to consume on configuration classes.

Whatever configuration class we create it would be using same, for help in serialization.

There is one more item that each configuration class would be inheriting is to create default values for each configuration class. This could be implemented through an Interface to easy access.

Interface for the creation of default values for configuration.

This would help to create default values for any class/configuration.

   /// <summary>  
   /// The default value generation for the class.  
   /// </summary>  
   /// <typeparam name="T"></typeparam>  
   public interface IDefault<T>  
     where T : class  
   {  
     /// <summary>  
     /// Creates the default for the class.  
     /// </summary>  
     /// <returns>Default value for the model.</returns>  
     T CreateDefault();  
   }  



Implementation of root-level application configuration


 /// <summary>  
 /// Application settings.  
 /// </summary>  
 /// <seealso cref="DataConfigurationObject" />  
 public class Setting  
      : DataConfigurationObject, IDefault<Setting>  
 {  
      /// <summary>  
      /// Initializes a new instance of the <see cref="Setting"/> class.  
      /// </summary>  
      public Setting()  
           : base(nameof(Setting))  
      {  
           Azure = new AzureSetting();  
           Message = new MessageSetting();  
      }  
      /// <summary>  
      /// Gets or sets the name of the application.  
      /// </summary>  
      /// <value>  
      /// The name of the application.  
      /// </value>  
      public string AppName { get; set; }  
      /// <summary>  
      /// Gets or sets the Azure level application settings.  
      /// </summary>  
      /// <value>  
      /// The azure level application setting.  
      /// </value>  
      public AzureSetting Azure { get; set; }  
      /// <summary>  
      /// Gets or sets the message.  
      /// </summary>  
      /// <value>  
      /// The message.  
      /// </value>  
      public MessageSetting Message { get; set; }  
      /// <summary>  
      /// Creates the default for the class.  
      /// </summary>  
      /// <returns>  
      /// Default value for the model.  
      /// </returns>  
      public Setting CreateDefault()  
      {  
           return new Setting  
           {  
                AppName = "My Project - App",  
                Azure = Azure.CreateDefault(),  
                Message = Message.CreateDefault()  
           };  
      }  
      /// <summary>  
      /// Serializes the implementation for data.  
      /// </summary>  
      /// <param name="data">The application data.</param>  
      protected override void Serialize(IDictionary<string, string> data)  
      {  
           data.Add("Setting:AppName", AppName);  
           Azure.ToConfigData().ToList().ForEach(data.Add);  
           Message.ToConfigData().ToList().ForEach(data.Add);  
      }  
 }  

The key elements to mark from above.

- Constructor and base class constructor initialization did by providing the setting name on constructor by passing nameof(Setting) which means "Setting:" as a string. The Setting: string which is used to identify class from ASP.NET Core. It is used to set root level name for the configuration.
AzureSettingMessageSetting are nested classes which would have a similar implementation as this class.
AppName is a property that would initialize in Serialize.
CreateDefault is a function to set up default values for configuration.
Serialize method uses two things. First to serialize property as data.Add("Setting:AppName", AppName). The second thing is to add configuration from other child classes.ToList is just used to simplify by consuming of ForEach function to append configurations.

Child class configuration implementation.

 /// <summary>  
 /// Azure settings for the application.  
 /// </summary>  
 /// <seealso cref="DataConfigurationObject" />  
 /// <seealso cref="IDefault{AzureSetting}" />  
 public class AzureSetting  
      : DataConfigurationObject, IDefault<AzureSetting>  
 {  
      /// <summary>  
      /// Initializes a new instance of the <see cref="AzureSetting"/> class.  
      /// </summary>  
      public AzureSetting()  
           : base($"{nameof(Setting)}:{nameof(Setting.Azure)}")  
      {  
           AzureStorageAccount = new AzureStorageSetting();  
           AzureAd = new AzureDirectorySetting();  
      }  
      /// <summary>  
      /// Gets or sets the azure ad.  
      /// </summary>  
      /// <value>  
      /// The azure ad.  
      /// </value>  
      public AzureDirectorySetting AzureAd { get; set; }  
      /// <summary>  
      /// Gets or sets the azure storage account.  
      /// </summary>  
      /// <value>  
      /// The azure storage account.  
      /// </value>  
      public AzureStorageSetting AzureStorageAccount { get; set; }  
      /// <summary>  
      /// Creates the default for the class.  
      /// </summary>  
      /// <returns>  
      /// Default value for the model.  
      /// </returns>  
      public AzureSetting CreateDefault()  
      {  
           return new AzureSetting  
           {  
                AzureAd = AzureAd.CreateDefault(),  
                AzureStorageAccount = AzureStorageAccount.CreateDefault()  
           };  
      }  
      /// <summary>  
      /// Serializes the implementation for data.  
      /// </summary>  
      /// <param name="data">The application data.</param>  
      protected override void Serialize(IDictionary<string, string> data)  
      {  
           AzureAd.ToConfigData().ToList().ForEach(data.Add);  
           AzureStorageAccount.ToConfigData().ToList().ForEach(data.Add);  
      }  
 }  

The only different over here is the initialization of base class through the constructor. Here full path is specified base($"{nameof(Setting)}:{nameof(Setting.Azure)}"). This is going to be the last example of nested configuration.


 /// <summary>  
 /// Azure storage account settings.  
 /// </summary>  
 public class AzureStorageSetting  
   : DataConfigurationObject, IDefault<AzureStorageSetting>  
 {  
   /// <summary>  
   /// Initializes a new instance of the <see cref="AzureStorageSetting"/> class.  
   /// </summary>  
   public AzureStorageSetting()  
     : base($"{nameof(Setting)}:{nameof(Setting.Azure)}:{nameof(AzureSetting.AzureStorageAccount)}")  
   {  
   }  
   /// <summary>  
   /// Gets or sets the access key.  
   /// </summary>  
   /// <value>  
   /// The access key.  
   /// </value>  
   public string AccessKey { get; set; }  
   /// <summary>  
   /// Gets or sets the name of the storage account.  
   /// </summary>  
   /// <value>  
   /// The name of the storage account.  
   /// </value>  
   public string StorageAccountName { get; set; }  
   /// <summary>  
   /// Creates the default for the class.  
   /// </summary>  
   /// <returns>  
   /// Default value for the model.  
   /// </returns>  
   public AzureStorageSetting CreateDefault()  
   {  
     return new AzureStorageSetting  
     {  
       AccessKey = "<AccessKeySetting>",  
       StorageAccountName = "<StorageAccountNameSetting>"  
     };  
   }  
   /// <summary>  
   /// Serializes the implementation for data.  
   /// </summary>  
   /// <param name="data">The application data.</param>  
   protected override void Serialize(IDictionary<string, string> data)  
   {  
     Func<string, string> nameValue = name => $"{SettingName}:{name}";  
     data[nameValue(nameof(StorageAccountName))] = StorageAccountName;  
     data[nameValue(nameof(AccessKey))] = AccessKey;  
   }  
 }  

Now you see the pattern, how it is being initialized on the constructor, default value, and property values.

In last part, we would be setting all configuration based on environments like Development, Staging, Production and so on...

Master root level setting to save based on different environments

 /// <summary>  
 /// Application settings for the application.  
 /// </summary>  
 public class AppSetting  
 {  
   /// <summary>  
   /// Gets or sets the Environment identifier.  
   /// </summary>  
   /// <value>  
   /// The Environment identifier.  
   /// </value>  
   [BsonId]  
   public string Id { get; set; }  
   /// <summary>  
   /// Gets or sets the value for application level settings.  
   /// </summary>  
   /// <value>  
   /// The application level settings.  
   /// </value>  
   public Setting Value { get; set; }  
 }  

The Id would save environment name Value would have application level settings.

Registration of configuration on ASP.NET Core

This would be divided into three parts ConfigurationProviderIConfigurationSource and registration with IOption.

Let's start with the main item which would set up all the configuration classes we created.

Implementation of configuration provider

 using Microsoft.Extensions.Configuration;  
 using MongoDB.Driver;  
 /// <summary>  
 /// Configuration provider for NoSql  
 /// </summary>  
 /// <typeparam name="TSetting">The type of the setting.</typeparam>  
 /// <seealso cref="Microsoft.Extensions.Configuration.ConfigurationProvider" />  
 public class ConfigurationProviderNoSql<TSetting>  
   : ConfigurationProvider  
   where TSetting : DataConfigurationObject  
 {  
   /// <summary>  
   /// The environment type  
   /// </summary>  
   private readonly EnvironmentType EnvironmentType;  
   /// <summary>  
   /// The mongo database  
   /// </summary>  
   private readonly IMongoDatabase MongoDb;  
   /// <summary>  
   /// Initializes a new instance of the <see cref="ConfigurationProviderNoSql{TSetting}"/> class.  
   /// </summary>  
   /// <param name="mongoDatabase">The mongo database.</param>  
   /// <param name="environmentType">Type of the environment.</param>  
   public ConfigurationProviderNoSql(IMongoDatabase mongoDatabase, EnvironmentType environmentType)  
   {  
     MongoDb = mongoDatabase;  
     EnvironmentType = environmentType;  
   }  
   /// <summary>  
   /// Gets or sets the application setting.  
   /// </summary>  
   /// <value>  
   /// The application setting.  
   /// </value>  
   public Setting Setting { get; set; }  
   /// <summary>  
   /// Gets the application setting collection.  
   /// </summary>  
   /// <value>  
   /// The application setting collection.  
   /// </value>  
   protected IMongoCollection<AppSetting> AppSettingCollection =>  
     MongoDb.GetCollection<AppSetting>("SystemApplicationSetting");  
   /// <summary>  
   /// Loads this instance.  
   /// </summary>  
   public override void Load()  
   {  
     var value = AppSettingCollection.Find(item => item.Id == EnvironmentType.ToString()).FirstOrDefault();  
     if (value == null)  
     {  
       value = new AppSetting  
       {  
         Id = EnvironmentType.ToString(),  
         Value = new Setting().CreateDefault()  
       };  
       AppSettingCollection.InsertOne(value);  
     }  
     Setting = value.Value;  
     Data = value.Value.ToConfigData();  
   }  
 }  

The codes over here are pretty understandable and straight to just consume whatever we created through those previous configuration classes. It is using Load function and Data property from ConfigurationProvider class.

NOTE: I have used generic class but not fully implemented.

The EnvironmentType enum is just based on the environment we want to have. This is an example.

 /// <summary>  
 /// Environment type.  
 /// </summary>  
 public enum EnvironmentType  
 {  
   /// <summary>  
   /// The Development environment.  
   /// </summary>  
   Development,  
   /// <summary>  
   /// The Staging environment.  
   /// </summary>  
   Staging,  
   /// <summary>  
   /// The Production environment.  
   /// </summary>  
   Production,   
 }  

The IConfigurationSource implementation

 using Microsoft.Extensions.Configuration;
 using MongoDB.Driver; 
 /// <summary>  
 /// Configuration based on MongoDB.  
 /// </summary>  
 /// <typeparam name="TSetting">The type of the setting.</typeparam>  
 /// <seealso cref="Microsoft.Extensions.Configuration.IConfigurationSource" />  
 public class NoSqlConfigurationSource<TSetting>  
   : IConfigurationSource  
   where TSetting : DataConfigurationObject  
 {  
   /// <summary>  
   /// The mongo database  
   /// </summary>  
   private readonly IMongoDatabase MongoDb;  
   /// <summary>  
   /// The environment type  
   /// </summary>  
   private readonly EnvironmentType EnvironmentType;  
   /// <summary>  
   /// Initializes a new instance of the <see cref="NoSqlConfigurationSource{TSetting}"/> class.  
   /// </summary>  
   /// <param name="mongoDatabase">The mongo database.</param>  
   /// <param name="environmentType">Type of the environment.</param>  
   public NoSqlConfigurationSource(IMongoDatabase mongoDatabase, EnvironmentType environmentType)  
   {  
     MongoDb = mongoDatabase;  
     EnvironmentType = environmentType;  
   }  
   /// <summary>  
   /// Builds the <see cref="T:Microsoft.Extensions.Configuration.IConfigurationProvider" /> for this source.  
   /// </summary>  
   /// <param name="builder">The <see cref="T:Microsoft.Extensions.Configuration.IConfigurationBuilder" />.</param>  
   /// <returns>  
   /// An <see cref="T:Microsoft.Extensions.Configuration.IConfigurationProvider" />  
   /// </returns>  
   public IConfigurationProvider Build(IConfigurationBuilder builder)  
   {  
     return new ConfigurationProviderNoSql<TSetting>(MongoDb, EnvironmentType);  
   }  
 }  
 /// <summary>  
 /// Configuration based on MongoDB.  
 /// </summary>  
 /// <seealso cref="Microsoft.Extensions.Configuration.IConfigurationSource" />  
 public class NoSqlConfigurationSource  
 : NoSqlConfigurationSource<AppSetting>  
 {  
   /// <summary>  
   /// Initializes a new instance of the <see cref="NoSqlConfigurationSource"/> class.  
   /// </summary>  
   /// <param name="mongoDatabase">The mongo database.</param>  
   /// <param name="environmentType">Type of the environment.</param>  
   public NoSqlConfigurationSource(IMongoDatabase mongoDatabase, EnvironmentType environmentType)  
     : base(mongoDatabase, environmentType)  
   {  
   }  
 }  

It just initializes what we already created.

The extension method and usage for wiring up configuration.

 using Microsoft.Extensions.Configuration;  
 using MongoDB.Driver;  
 using System;  
 /// <summary>  
 /// MongoDB configuration helper.  
 /// </summary>  
 public static class MongoDbConfigExtension  
 {  
   /// <summary>  
   /// Adds the mongo database configuration.  
   /// </summary>  
   /// <param name="builder">The builder.</param>  
   /// <param name="environmentType">Type of the environment.</param>  
   /// <param name="option">The action for creation of Mongo database.</param>  
   /// <returns>Configuration builder after NoSql configuration.</returns>  
   public static IConfigurationBuilder AddMongoDbConfig(  
     this IConfigurationBuilder builder, EnvironmentType environmentType, Func<IMongoDatabase> option)  
   {  
     return builder.Add(new NoSqlConfigurationSource(option(), environmentType));  
   }  
 }  


Startup.cs settings.

 /// <summary>  
 /// Gets or sets the configuration.  
 /// </summary>  
 /// <value>The configuration.</value>  
 public IConfigurationRoot Configuration { get; set; }  
 /// <summary>  
 /// Gets or sets the application setting.  
 /// </summary>  
 /// <value>  
 /// The application setting.  
 /// </value>  
 public Setting Setting { get; set; }            
 /// <summary>  
 /// Initializes a new instance of the <see cref="Startup"/> class.  
 /// </summary>  
 /// <param name="env">The environment type.</param>  
 public Startup(IHostingEnvironment env)  
 {  
   var envType = (EnvironmentType)Enum.Parse(typeof(EnvironmentType), env.EnvironmentName);  
   // work with with a builder using multiple calls  
   var builder = new ConfigurationBuilder()  
     .SetBasePath(env.ContentRootPath)  
     .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);  
   var connectionStringConfig = builder.Build();  
   // chain calls together as a fluent API  
   var config = new ConfigurationBuilder().SetBasePath(env.ContentRootPath).AddMongoDbConfig(envType,  
       () => new MongoClient(connectionStringConfig  
         .GetConnectionString($"MongoDatabase{env.EnvironmentName}"))  
         .GetDatabase($"MyProject{env.EnvironmentName}"))  
     .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)  
     .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: true)  
     .AddEnvironmentVariables();  
   Configuration = config.Build();  
   Environment = env;  
   Setting = Configuration.Get<Setting>(nameof(Setting));  
 }  
 public void ConfigureServices(IServiceCollection services)  
 {  
      // Configuration DI  
      services.AddSingleton<IConfigurationRoot>(Configuration);  
      services.AddSingleton<IConfiguration>(Configuration);  
      services.AddOptionModels(Configuration, (config) =>  
      {  
           config = Configuration.Get<Setting>(nameof(Setting));  
      });  
      services.AddSingleton((option) =>  
      {  
           return Configuration.Get<Setting>(nameof(Setting));  
      });       
 }  

The builder is to get the connection string from appSettings.json file and use that connection string to initialize configuration through AddMongoDbConfig extension method.

Now, the Setting DI should work on any constructor injection.

NOTE: Few DI were done for a testing purpose. You can use as per need.

Popular posts from this blog

Handling JSON DateTime format on Asp.Net Core

This is a very simple trick to handle JSON date format on AspNet Core by global settings. This can be applicable for the older version as well.

In a newer version by default, .Net depends upon Newtonsoft to process any JSON data. Newtonsoft depends upon Newtonsoft.Json.Converters.IsoDateTimeConverter class for processing date which in turns adds timezone for JSON data format.

There is a global setting available for same that can be adjusted according to requirement. So, for example, we want to set default formatting to US format, we just need this code.


services.AddMvc() .AddJsonOptions(options => { options.SerializerSettings.DateTimeZoneHandling = "MM/dd/yyyy HH:mm:ss"; });



Elegantly dealing with TimeZones in MVC Core / WebApi

In any new application handling TimeZone/DateTime is mostly least priority and generally, if someone is concerned then it would be handled by using DateTime.UtcNow on codes while creating current dates and converting incoming Date to UTC to save on servers.
Basically, the process is followed by saving DateTime to UTC format in a database and keep converting data to native format based on user region or single region in the application's presentation layer.
The above is tedious work and have to be followed religiously. If any developer misses out the manual conversion, then that area of code/view would not work.
With newer frameworks, there are flexible ways to deal/intercept incoming or outgoing calls to simplify conversion of TimeZones.
These are steps/process to achieve it. 1. Central code for storing user's state about TimeZone. Also, central code for conversion logic based on TimeZones. 2. Dependency injection for the above class to be able to use globally. 3. Creating Mo…

Global exception handling and custom logging in AspNet Core with MongoDB

In this, we would be looking into logging and global exception handling in the AspNet Core application with proper registration of logger and global exception handling.

Custom logging
The first step is to create a data model that we want to save into DB.

Error log Data model
These are few properties to do logging which could be extended or reduced based on need.

public class ErrorLog { /// <summary> /// Gets or sets the Error log identifier. /// </summary> /// <value> /// The Error log identifier. /// </value> [BsonRepresentation(BsonType.ObjectId)] public ObjectId Id { get; set; /// <summary> /// Gets or sets the date. /// </summary> /// <value> /// The date. /// </value> public DateTime Date { get; set; } /// <summary> /// Gets or sets the thread. /// </summary> /// <v…

LDAP with ASP.Net Identity Core in MVC with project.json

Lightweight Directory Access Protocol (LDAP), the name itself explain it. An application protocol used over an IP network to access the distributed directory information service.

The first and foremost thing is to add references for consuming LDAP. This has to be done by adding reference from Global Assembly Cache (GAC) into project.json

"frameworks": { "net461": { "frameworkAssemblies": { "System.DirectoryServices": "4.0.0.0", "System.DirectoryServices.AccountManagement": "4.0.0.0" } } },
These System.DirectoryServices and System.DirectoryServices.AccountManagement references are used to consume LDAP functionality.

It is always better to have an abstraction for irrelevant items in consuming part. For an example, the application does not need to know about PrincipalContext or any other dependent items from those two references to make it extensible. So, we can begin with some bas…

Unit Of Work injection through Asp.Net Core Dependency Injection

This article is not directly related to UnitOfWork but leveraging Asp.Net Core Dependency Injection to consume Unit Of Work.

In one of the previous article about project architecture, I was not very satisfied with the approach for Unit Of Work implementation for initialization of repository even if with some advantage.

Here is old code for UnitOfWork.

public sealed partial class MyProjectUnitOfWork : UnitOfWork<DbContext>, IMyProjectUnitOfWork { public MyProjectUnitOfWork(IContextFactory<DbContext> contextFactory) : base(contextFactory) { } /// <summary> /// BookRepository holder /// </summary> private MyProject.DB.Repository.BookRepository _bookRepository; /// <summary> /// Gets the BookRepository repository. /// </summary> /// <value> /// The BookRepository repository. /// </value> MyProject.Interface.Repository.IBoo…

Architecture solution composting Repository Pattern, Unit Of Work, Dependency Injection, Factory Pattern and others

Project architecture is like garden, we plant the things in certain order and eventually they grow in similar manner. If things are planted well then they will all look(work) great and easier to manage. If they grow as cumbersome it would difficult to maintain and with time more problems would be happening in maintenance.

There is no any fixed or known approach to decide project architecture and specially with Agile Methodology. In Agile Methodology, we cannot predict how our end products will look like similarly we cannot say a certain architecture will fit well for entire development lifespan for project. So, the best thing is to modify the architecture as per our application growth. I understand that it sounds good but will be far more problematic with actual development. If it is left as it is then more problems will arise with time. Just think about moving plant vs a full grown tree.

Coming to technical side, In this article, I will be explaining about the various techniques tha…

Configuring Ninject, Asp.Net Identity UserManager, DataProtectorTokenProvider with Owin

It can be bit tricky to configure both Ninject and Asp.Net Identity UserManager if some value is expected from DI to configure UserManager. We will look into configuring both and also use OwinContext to get UserManager.

As usual, all configuration need to be done on Startup.cs. It is just a convention but can be used with different name, the important thing is to decorate class with following attribute to make it Owin start-up:

[assembly: OwinStartup(typeof(MyProject.Web.Startup))]
Ninject configuration

Configuring Ninject kernel through method which would be used to register under Owin.

Startup.cs
public IKernel CreateKernel() { var kernel = new StandardKernel(); try { //kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>(); // TODO: Put any other injection which are required. return kernel; } catch { kernel.Dispose(); throw; }…

Client side Validation for data driven view engine

The prerequisite for this is to have a designed database driven view engine. This can be a good guidance to implement DB driven view engine Data Driven Custom View Engine in ASP.NET MVC (http://www.dotnetcurry.com/aspnet-mvc/946/data-driven-custom-view-engine-aspnet-mvc).

If we talk about the concept then we can say for DB driven view engine a dynamic form/screen table would require along with the associate attribute set for controls. The controls, Attribute set can have constraints like Required, MaxLength, RegEx etc. similar to available DataAnnotation implementation, just that it has to come through DB.

The jQuery unobtrusive validation is all about adding certain HTML 5 data attributes. So, if we can find rules of the controls (required, max length etc) and set it to HTML attribute from view engine then we are done.

While designing DB driven view engine, there should be a place where we need to loop through available controls to identify it's type and write as HTML/element. A…

OpenId Authentication with AspNet Identity Core

This is a very simple trick to make AspNet Identity work with OpenId Authentication. More of all both approach is completely separate to each other, there is no any connecting point.

I am using Microsoft.AspNetCore.Authentication.OpenIdConnect package to configure but it should work with any other.

Configuring under Startup.cs with IAppBuilder
app.UseCookieAuthentication(new CookieAuthenticationOptions { AuthenticationScheme = CookieAuthenticationDefaults.AuthenticationScheme, LoginPath = new PathString("/Account/Login"), CookieName = "MyProjectName", }) .UseIdentity() .UseOpenIdConnectAuthentication(new OpenIdConnectOptions { ClientId = "<AzureAdClientId>", Authority = String.Format("https://login.microsoftonline.com/{0}", "<AzureAdTenant>"), ResponseType = OpenIdConnectResponseType.IdToken, PostLogoutRedirectUri = "<my website url>", Au…

Kendo MVC Grid DataSourceRequest with AutoMapper

Kendo Grid does not work directly with AutoMapper but could be managed by simple trick using mapping through ToDataSourceResult. The solution works fine until different filters are applied.
The problems occurs because passed filters refer to view model properties where as database model properties are required after AutoMapper is implemented.
So, the plan is to intercept DataSourceRequest  and modify names based on database model. To do that we are going to create implementation of CustomModelBinderAttribute to catch calls and have our own implementation of DataSourceRequestAttribute from Kendo MVC. I will be using same source code from Kendo but will replace column names for different criteria for sort, filters, group etc.
Let's first look into how that will be implemented.
public ActionResult GetRoles([MyDataSourceRequest(GridId.RolesUserGrid)] DataSourceRequest request) { if (request == null) { throw new ArgumentNullException("reque…