Building a Plugin Architecture in .NET MAUI
🚀 Building a Plugin Architecture in .NET MAUI
Enterprise Architecture Guide for Building Modular, Scalable and Maintainable .NET MAUI Applications
📚 Table of Contents
- Introduction
- Why Plugin Architecture?
- Traditional vs Plugin Architecture
- Module Contracts
- Dependency Injection
- Navigation
- Automatic Discovery
- Solution Structure
- Feature Flags
- Module Communication
- Performance
- Security
- Testing
- Enterprise Example
- Common Mistakes
- Best Practices
- References
🚀 Introduction
As .NET MAUI applications grow, a plugin architecture helps isolate, features into independently developed modules that own their pages, services, navigation, configuration, and resources. This dramatically improves scalability, maintainability, testing, and long-term evolution.
🏗 Traditional vs Plugin Architecture
| Traditional | Plugin |
|---|---|
| ❌ Tight coupling | ✅ Loose coupling |
| ❌ Giant MauiProgram | ✅ Self-registration |
| ❌ Difficult testing | ✅ Independent modules |
| ❌ Hard feature toggles | ✅ Feature flags |
Host
├── Authentication
├── Orders
├── Reports
├── Notifications
└── Shared
🧩 Module Contract
public interface IModule
{
void RegisterServices(IServiceCollection services);
void RegisterRoutes(IRouteRegistry routes);
void Configure();
}
⚙ Dependency Injection
public class OrdersModule : IModule
{
public void RegisterServices(IServiceCollection services)
{
services.AddSingleton<IOrderRepository, OrderRepository>();
services.AddTransient<OrdersViewModel>();
}
public void RegisterRoutes(IRouteRegistry routes)
{
routes.Register<OrdersPage>();
}
public void Configure() { }
}
🔍 Automatic Discovery
var modules = Assembly.GetExecutingAssembly()
.GetTypes()
.Where(t => typeof(IModule).IsAssignableFrom(t));
foreach(var type in modules)
{
var module = (IModule)Activator.CreateInstance(type)!;
module.RegisterServices(builder.Services);
}
🎛 Feature Flags
if(featureFlags.IsEnabled("Reports"))
{
reportsModule.RegisterServices(builder.Services);
}
📨 Communication
Prefer interfaces or messaging instead of plugin-to-plugin references.
WeakReferenceMessenger.Default.Send(new OrderCompletedMessage(orderId));
⚡ Performance
- Cache reflection results.
- Consider source generators for very large solutions.
- Register only enabled modules.
🔒 Security
- Load only trusted assemblies.
- Validate plugin versions.
- Digitally sign external plugins.
🧪 Testing
[Fact]
public void OrdersModule_Should_RegisterServices()
{
var services = new ServiceCollection();
new OrdersModule().RegisterServices(services);
}
🏢 Enterprise Example
Bank
├── Accounts
├── Cards
├── Loans
├── Payments
└── Investments
⚠ Common Mistakes
| Mistake | Recommendation |
|---|---|
| Circular dependencies | Use shared abstractions |
| Giant startup | Self-register modules |
| Plugin references | Interfaces or messaging |
✅ Best Practices
- 🧩 One responsibility per plugin.
- 🚀 Register services locally.
- 🧪 Test each plugin independently.
- 📦 Version modules independently.
📚 References
- https://learn.microsoft.com/dotnet/maui/fundamentals/dependency-injection
- https://learn.microsoft.com/dotnet/maui/fundamentals/shell/navigation
- https://learn.microsoft.com/dotnet/core/extensions/dependency-injection
- https://learn.microsoft.com/dotnet/api/system.reflection
- https://learn.microsoft.com/dotnet/csharp/roslyn-sdk/source-generators-overview
Was this useful?
Sign in to react. Guest comments are still welcome.
Related Posts
 Layer in .NET MAUI/RASPMAUI.png)
Comments (0)
No approved comments yet.