This library provides types for visualizing dependency hierarchies in Microsoft.Extensions.DependencyInjection's IServiceCollection. It presents your solution's architecture in an intuitive way, helps identify deeply-nested dependency chains, and can find services which are unused, despite being registered.
using JKendall.DependencyInjection.Visualization;
using Microsoft.Extensions.DependencyInjection;
// Setup your services.
var services = new ServiceCollection();
services.AddTransient<IService1, Service1>();
services.AddSingleton<IService2, Service2>();
// Handles open generic registrations.
services.AddSingleton(typeof(IFoobar<,,>), typeof(Foobar<,,>));
// Quickly see the hierarchy of your IServiceCollection via an extension method.
Console.WriteLine(services.GetDebugView());
// For more control, create a DependencyTree.
// You can filter the tree to only include services defined in
// the currently-executing assembly and those it references.
var tree = new DependencyTree(services, onlyUserCode: false);
// Generate and print the full tree.
Console.WriteLine(tree.GenerateTreeString());
// Find deeply-nested dependency chains.
var deepChains = tree.GetRegistrationChainsByDepth(4);
Console.WriteLine($"Found {deepChains.RootNodes.Count} deep chains:");
Console.WriteLine(deepChains.StringRepresentation);
// See what services are used most frequently...
var topFiveMostUsed = tree.GetMostUsedServices(5);
// ...and which are never used, despite being registered.
var unused = tree.GetUnusedServices();
Install via NuGet:
dotnet add package JKendall.DependencyInjection.Visualization
Contributions are welcome. Please feel free to submit a pull request or issue if a feature you want is missing.
This project was developed in concert with Claude 3.5 Sonnet, from Anthropic.
This project is licensed under the MIT License.