Softeq.NetKit.NotificationService is a RESTful microservice that allows to quickly bring notification support to a developing solution. Service supports the following notification types:

1. Push via Azure Notification Hub
2. Email via SendGrid
3. SMS via Twilio

API is written in Asp.Net Core 2.0 and secured with OAuth2 protocol. Swashbuckle is enabled to provide API consumers with the documentation.

API has an integration with [Softeq.NetKit.EventDriverCommunication] (https://github.com/Softeq/EventDrivenCommunication) to enable sending notification requests via Message Bus.

Service exposes the following APIs:

1. /settings API to initialize new user settings, read and manage;
2. /notifications API to send new notifications;
3. /notifications/history API to view and delete notification history assoicated to a particular user;
4. /notifications/push/subscription API to subscribe or unsubscribe user's mobile devices to receive Push notifications;

1. Configure Data Storage: The microservice supports multiple storages: SQL - implemented in Softeq.NetKit.Notifications.Store.Sql NoSQL via Azure CosmosDB - implemented in Softeq.NetKit.Notifications.Store.CosmosDB

   When desired data storage is chosen,

   • Add a reference to a data store implementation to Softeq.NetKit.Notifications.Web project
   • Add Automapper configuration to Startup.cs

       services.AddAutoMapper(typeof(Service.ContainerModule).Assembly,
                   typeof(Store.Sql.ContainerModule).Assembly);

   • Register Autofac module in DI container

       builder.RegisterModule(new Store.Sql.ContainerModule());

2. Update appsettings.json by configuring storage connection strings, API keys

1. Add new event to Softeq.NetKit.Notifications.Domain.Models.Notification.NotificationEvent enum

    public enum NotificationEvent
    {
        MyNewCustomEvent = 0
    }

2. Modify Softeq.NetKit.Notifications.Service.NotificationSenders.NotificationEventConfiguration by specifying what notification type will support newly-added event

    public static Dictionary<NotificationType, IList<NotificationEventConfiguration>> Config = new Dictionary<NotificationType, IList<NotificationEventConfiguration>>
        {
            {
                NotificationType.Email, new List<NotificationEventConfiguration>
                {
                    new NotificationEventConfiguration(NotificationEvent.MyNewCustomEvent, true)
                }
            },
            {
                NotificationType.SMS, new List<NotificationEventConfiguration>
                {
					new NotificationEventConfiguration(NotificationEvent.MyNewCustomEvent)
                }
            },
            {
                NotificationType.Push, new List<NotificationEventConfiguration>
                {
                    new NotificationEventConfiguration(NotificationEvent.MyNewCustomEvent)
                }
            }
        };

3. Implement Notification message per supported notification type under /NotificationSenders/NOTIFICATION_TYPE/Messages

   • For Push notification

       public class MyNewCustomEventPushMessage : PushNotificationMessage
       {
           [JsonProperty("someId")]
           public Guid SomeId { get; set; }
   
           public MyNewCustomEventPushMessage()
           {
               NotificationType = (int)NotificationEvent.MyNewCustomEvent;
               BodyLocalizationKey = "MyNewCustomEvent_body";
               TitleLocalizationKey = "MyNewCustomEvent_title";
           }
       }

   • For Email notification

       public class MyNewCustomEventEmailModel : IEmailTemplateModel
       {
           public Guid SomeId { get; set; }
       }
   
       public class MyNewCustomEventEmailMessage : BaseEmailNotification<MyNewCustomEventEmailModel>
       {
           public MyNewCustomEventEmailMessage(string toEmail, string toName, MyNewCustomEventEmailModel model) : base(new RecipientDto(toEmail, toName))
           {
               TemplateModel = model;
           }
       }

   • For Sms notification

       public class MyNewCustomEventSmsModel : ISmsNotification
       {
           public string CustomField { get; set; }
       }
   
       public class MyNewCustomEventSmsMessage : BaseSmsNotification
       {
           public MyNewCustomEventSmsMessage()
           {
               
           }
       }

4. Implement Validator per supported Notificationn Type under /NotificationSenders/NOTIFICATION_TYPE/Validators

   • For Email notification

       internal class MyNewCustomEventEmailMessageValidator : BaseEmailValidator<MyNewCustomEventEmailMessage>
       {
           public MyNewCustomEventEmailMessageValidator()
           {
               RuleFor(x => x.TemplateModel.SomeId).NotEqual(Guid.Empty);
           }
       }

   • For Push notification

       internal class MyNewCustomEventPushMessageValidator : BasePushMessageValidator<MyNewCustomEventPushMessage>
       {
           public MyNewCustomEventPushMessageValidator()
           {
               RuleFor(x => x.SomeId).NotEqual(Guid.Empty);
           }
       }

   • For Sms notification

       internal class MyNewCustomEventSmsMessageValidator : BaseSmsValidator<MyNewCustomEventSmsMessage>
       {
           public MyNewCustomEventSmsMessageValidator()
           {
               RuleFor(x => x.CustomField).NotEqual(string.Empty());
           }
       }

5. Update MessageFactory under /NotificationSenders/NOTIFICATION_TYPE/***MessageFactory.cs

6. Add localization info under /NotificationSenders/NOTIFICATION_TYPE/Resources

This project is maintained by Softeq Development Corp.

We specialize in .NET core applications.

We welcome any contributions.

The Query Utils project is available for free use, as described by the LICENSE (MIT).