HaidaiTech.Notificator 2.1.0

Haidai Notificator

Haidai Notificator is a project developed by the Haidai team, implementing the Notification Pattern as described by Martin Fowler here.

Release Versions

• 2.1.0: Added Method Extension to inject NotificationContext to DI

Release Notes

Version 2.1.0

This release introduces an extension method that injects NotificationContext into the dependency injection container. Now you can do two things:

// Program.cs

using HaidaiTech.Notificator.Interfaces;
using HaidaiTech.Notificator.NotificationContextMessages;
using HaidaiTech.Notificator.NotificationContextPattern;
using HaidaiTech.Notificator.Extensions;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddNotificationContextService();

//using your own notification context message
builder.Services.AddNotificationContextService<MyCustomNotificationContextMessage>();

//if you want to use your own DI, use this

builder.Services.AddScoped<INotificationContext<NotificationContextMessage>, NotificationContext<NotificationContextMessage>>();

//or 
builder.Services.AddScoped<INotificationContext<MyCustomNotificationContextMessage>, NotificationContext<MyCustomNotificationContextMessage>>();

// Example using DDD pattern

 public class AddNewCustomerCommandHandler
        : IRequestHandler<AddNewCustomerCommand, string>
    {

        private readonly INotificationContext<NotificationContextMessage> _notificationContext;


        public AddNewCustomerCommandHandler(INotificationContext<NotificationContextMessage> notificationContext)
        {
            _notificationContext = notificationContext;
        }

        public async Task<string> Handle(
            AddNewCustomerCommand request,
            CancellationToken cancellationToken
        )
        {
            //this code is only AN EXAMPLE, read again : E-X-A-M-P-L-E !!!! XD~

            if (request.Name is null)
                _notificationContext.AddNotification(new NotificationContextMessage(
                    "The name is necessary",
                    NotificationContextErrorLevelHelper.ATTENTION,
                    NotificatorErrorCodesHelper.ERROR_CODE_027
                ));

            if (request.Age < 18)
                _notificationContext.AddNotification(new NotificationContextMessage(
                    "You must be 18",
                    NotificationContextErrorLevelHelper.CRITICAL,
                    NotificatorErrorCodesHelper.ERROR_CODE_072
                ));


            if (_notificationContext.HasNotifications())
                return await Task.Run(() =>
                {
                    return "Problems";
                });
            else
                return await Task.Run(() =>
                {
                    return "Ok";
                });

        }
    }

This project follow the TDD pattern. If you read the tests, you will understand the using of NotificationContext class.