How is the middleware pipeline configured (in Program.cs / Startup.cs)?

Q: How is the middleware pipeline configured (in Program.cs / Startup.cs)?

Short answer: var app = builder.Build(); app.UseMiddleware (); app.UseRouting(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); app.Run(); In older versions (e.g., .NET Core 3.1), Startup.cs is used: public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { app.UseMiddleware (); app.UseRouting(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); } Example code In ASP.NET Core 6+ (minimal hosting model), middleware is added in Program.cs: var builder = WebApplication.CreateBuilder(args); Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

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Accepted Answer

Short answer: var app = builder.Build(); app.UseMiddleware(); app.UseRouting(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); app.Run(); In older versions (e.g., .NET Core 3.1), Startup.cs is used: public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { app.UseMiddleware(); app.UseRouting(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); } Example code In ASP.NET Core 6+ (minimal hosting model), middleware is added in Program.cs: var builder = WebApplication.CreateBuilder(args); Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.