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TinySaas

Build Coverage Nuget (with prereleases)

TinySaas is a C# library for building multitenant applications with .NET Core 3.0+

Supported Use Cases

  • Shared services
  • Per-tenant services
  • Schema per-tenant (Data Isolation)
  • Database per-tenant (Data Isolation)
  • Shared database (Data Isolation)
  • Shared options
  • Per-tenant options
  • Shared Authentication and Authorization
  • Per-tenant Authentication and Authorization

Quickstart

dotnet add package CodEaisy.TinySaas.AspNetCore --version 1.0.0
  • In Startup.cs, add the following inside the ConfigureServices method.

      public void ConfigureServices(IServiceCollection services)
      {
          // register all global singleton services here, and also dependencies for your TenantStore and ResolutionStrategy if any
    
          // ...
    
          // OPTION 1
          services.AddMultitenancy<Tenant, TenantStore<Tenant>, TenantResolutionStrategy>();
    
          // OPTION 2
          // uses default `CodEaisy.TinySaas.Model.TinyTenant` as tenant model
          services.AddMultitenancy<TenantStore<TinyTenant>, TenantResolutionStrategy>();
    
          // ...
    
          // services.AddControllers();
      }

    Then, add the following in the Configure method

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
    
        // enable multitenant support, with missing tenant handler and tenant container
    
        // OPTION 1
        // missing tenant handler has a dependency that can be provided immediately
        app.UseMultitenancy<Tenant, MissingTenantHandler, MissingTenantOptions>(missingTenantOptions);
    
        // OPTION 2
        // missing tenant handler does not have a dependency or dependency is already registered in services
        app.UseMultitenancy<Tenant, MissingTenantHandler>();
    
        // OPTION 3
        // Use `SimpleTenant` as tenant model, and missing tenant handler does not have a dependency or dependency is already registered in services
        app.UseMultitenancy<TMissingTenantHandler>()
    
        // ...
    }
  • In Program.cs, add the following in the CreateHostBuilder method.

    public static IHostBuilder CreateHostBuilder(string[] args) =>
          Host.CreateDefaultBuilder(args)
              .ConfigureWebHostDefaults(webBuilder =>
              {
                  webBuilder.UseStartup<Startup>();
              })
              // OPTION 1: add multitenant support via TenantStartup class
              .ConfigureMultitenancy<TenantStartup, Tenant>();
              // OPTION 2: add multitenant support via static method
              .ConfigureMultitenancy<Tenant>(ClassName.StaticMethodName);

    NOTE:

    • Tenant must implement CodEaisy.TinySaas.Interface ITenant.
    • TenantStore must implement CodEaisy.TinySaas.Interface.ITenantStore.
    • TenantResolutionStrategy must implement CodEaisy.TinySaas.Interface.ITenantResolutionStrategy respectively.
    • TenantStartup must implement IMultitenantStartup
    • ClassName.StaticMethodName must be of type System.Action<TTenant, Autofac.ContainerBuilder> where TTenant implements ITenant

Benchmarks

Here, we show the performance report of an application singleton in a default ASP.NET application and an application singleton in a TinySaas ASP.NET application.

BenchmarkDotNet=v0.13.1, OS=macOS Big Sur 11.5.2 (20G95) [Darwin 20.6.0]
Intel Core i9-9880H CPU 2.30GHz, 1 CPU, 16 logical and 8 physical cores
.NET SDK=5.0.400
  [Host]        : .NET Core 3.1.5 (CoreCLR 4.700.20.26901, CoreFX 4.700.20.27001), X64 RyuJIT
  .NET 5.0      : .NET 5.0.9 (5.0.921.35908), X64 RyuJIT
  .NET Core 3.1 : .NET Core 3.1.5 (CoreCLR 4.700.20.26901, CoreFX 4.700.20.27001), X64 RyuJIT

App Singleton in Default ASP.NET vs App Singleton in TinySaas

Method Job Runtime Instance Mean Error StdDev Ratio RatioSD
HttpGet .NET 5.0 .NET 5.0 Default 43.95 μs 0.791 μs 1.598 μs 0.90 0.04
HttpGet .NET Core 3.1 .NET Core 3.1 Default 50.06 μs 0.979 μs 1.088 μs 1.00 0.00
HttpGet .NET 5.0 .NET 5.0 TinySaas 64.24 μs 0.291 μs 0.272 μs 0.92 0.03
HttpGet .NET Core 3.1 .NET Core 3.1 TinySaas 69.96 μs 1.389 μs 1.993 μs 1.00 0.00

Tenant Singleton in TinySaas

Method Job Runtime Instance Mean Error StdDev Ratio RatioSD
HttpGet .NET 5.0 .NET 5.0 TinySaas 64.89 μs 0.237 μs 0.185 μs 0.88 0.02
HttpGet .NET Core 3.1 .NET Core 3.1 TinySaas 74.95 μs 1.437 μs 1.869 μs 1.00 0.00

Requirements

ASP.NET Core 3.1+

Changelog

Learn about the latest improvements.

Credits

Gunnar Peipman and Michael McKenna for their awesome works on Saas in ASP.NET Core.

Want to help ?

Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our guidelines for contributing and then check out one of our issues in the hotlist: community-help.

About

MultiTenancy on ASP.NET Core, built on AutoFac

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