Configure vs ConfigureServices in .NET Core – What’s the Difference?
ConfigureServices vs Configure in ASP.NET Core ConfigureServices vs Configure in ASP.NET Core When you're building an application with ASP.NET Core , you’ve likely seen two key methods in the Startup.cs file: ConfigureServices and Configure . Both are crucial for setting up your application — but they serve very different purposes. In this post, we’ll break down what each method does, how they work together, and when to use which. π§© What is ConfigureServices ? Purpose: ConfigureServices(IServiceCollection services) is used to register application services and dependencies that will be injected wherever needed using Dependency Injection (DI). Common Use Cases: Registering controllers and MVC Setting up Entity Framework Core ( DbContext ) Adding Identity and Authentication Registering custom services, repositories Enabling Swagger, CORS, etc. Example: public void ConfigureServices(IServiceC...