Tyche - A SaaS Starter

Tyche is a boilerplate / starter app for a Software as a Service (SaaS). It is built with ASP.NET Core on .NET 6 with React.js on the front-end. It contains all the boilerplate all saas apps must have like a account & user system that supports both normal and B2B customers. Authentication & Authorization solution and crucial services like password reset and automatic email sending etc.

Getting Started 🚀

1. make sure you have .NET 6 sdk installed, you can find it here
2. add configuration to appsettings.json, when developing locally you can set storage connection strings to UseDevelopmentStorage=true and use azurite to emulate azure blob storage
3. open the solution in Visual Studio or Rider and you are good to go.

In order to run integration tests you need to have docker installed, you can get it here

Configuration 🔧

You need to set some environment variables, your appsettings.json should follow this structure:

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "StorageAccount": "UseDevelopmentStorage=true",
  "SaltStorageAccount": "UseDevelopmentStorage=true",
  "EmailSettings": {
    "Username": "",
    "Password": "",
    "SmtpServer": "127.0.0.1",
    "SmtpPort": "25",
    "SenderEmail": "noreply@tyche.com",
    "isDevelopment": true
  }
}

If you need a SMTP server for local testing, check out Papercut

Contribution Guidelines 📜

The project is currently not open for contributions but will be in the future when the basic features such as user management and authentication etc is in a more finished state.

Architecture 🚧

Project Structure
the project is split into multiple projects, Tyche.StarterApp & Tyche.StarterApp.Web. The reason for this is to seperate the hosting model from the business logic. Today the web front-end & api is served using ASP.NET Core 6 but tomorrow you might want to host it using f.ex azure functions or something else instead. By isolating the business logic the project is not tied to a specific hosting model and you are free to change it if you like.

Unit tests for the business logic can be found under Tyche.StarterApp.Tests and integration tests for the web project can be found under Tyche.StarterApp.Web.Tests

Storage
Tyche uses Azure BlobStorage and a Key-Value like approach to storing data, however you are not limited to using azure blob storage if you dont want to! You can just create your own implementation of IStorageClient and use whatever database you want under the hood.

Events
Tyche comes with a lightweight event dispatcher that facilitates communication between modules, simply add the handler to the ioc container using the serviceCollection.RegisterEventHandler<TEvent, TImplementation> extension method and inject IEventDispatcher to start sending events.

Architecture Diagram

Roadmap 🗺

points that are striked out is finished

• Identity Module
  • Let users register an account
    • Should dispatch a IdentityRegisteredEvent event to Account Module telling it to create a account for a newly registered identity.
  • Let users log in
    • Should use cookie based authentication
    • Allow restricting access to specific endpoints to specific identity roles
  • Listen to UserInvitedEvent and send a invite email to a email that has been added as a user to an account.
    • Allow Invited emails to create a user attached to a specific accountId
  • Track logins, freeze account if login from unknown ip
• Account Module
  • Listen to IdentityRegisteredEvent and create an account when a new identity is created.
  • Allow account admin to disable a user on the account
  • Allow account admin to invite users
    • Should dispatch a UserInvitedEvent
• Customer Service Module
• Bare bones customer service portal that features:
  • Tool to resett password for a user
  • Tool to log in as said user.
  • Tool to lock / unlock accounts
• Events
  • Communication between modules should happen through a lightweight event system.
• Front-end
  • Basic React.js setup with:
    • protected routes
    • login / signup pages
    • user page that allows user to edit certain details like password reset.
• Integrations
  • Create email client