These libraries contain reusable building components for the .NET Standard 2.0 applications.

Apache License 2.0

• Kotas.Utils.Common - a base common library
  • preconfigured json serialization
  • unix datetime
  • validations
  • comparers (int/string array)
  • is primitive method
  • other utils (reflection, string, enum)
• Kotas.Utils.Data - a base library for abstract data access
  • the unit of work pattern
• Kotas.Utils.Data.Native - a library for native data access
  • implementation of the unit of work pattern
  • pure System.Data
  • base classes: NativeQuery and NativeStore
  • SQL server via System.Data.SqlClient
  • PostgreSQL via Npgsql
• Kotas.Utils.Data.EntityFramework - a library for Entity Framework data access
  • implementation of the unit of work pattern
  • base classes: EntityFrameworkQuery and EntityFrameworkStore
  • SQL server via Microsoft.EntityFrameworkCore.SqlServer
  • PostgreSQL via Npgsql.EntityFrameworkCore.PostgreSQL
• Kotas.Utils.Asp.Net - a common library for ASP.NET Core applications
  • middlewares
    • exception to status code - maps throwed unhandled exceptions to HTTP status code
  • exceptions
    • BadInputException
    • ForbiddenException
    • ConflictException
    • UnathorizedException
    • NotFoundException
• Kotas.Utils.RabbitMQ - a library for RabbitMQ broker
  • statically typed approach to pub-sub pattern
  • supports two types of subscriptions
    • shared - only one instance of the subscriber is handling the message
    • per consumer - every instance of the subscriber is handling the message
  • message consist of payload and wrapper
  • wrapper contains timestamp and correlation id
  • whole message is serialized to JSON
  • inspired by Prism (library for WPF)
• Kotas.Utils.RabbitMQ.AspNet - ASP.NET Core integration
  • provides integration methods (called from Startup class)
    • AddRabbitMQ(), UseRabbitMQ()
    • AddMessageHandler<>(), UseMessageHandler<,>()