ASP.NET Core 3 and React

The Configure method

When a request comes into ASP.NET Core, it goes through what is called the request/response pipeline, where some middleware code is executed. This pipeline is configured using a method called Configure. It is this method we will use to define exactly which middleware is executed and in what order. Middleware code is invoked by methods that generally start with Use in the app parameter. So, we would typically specify middleware such as authentication early in the Configure method, and MVC middleware toward the end. The pipeline that the template created is as follows:

public void Configure(IApplicationBuilder app, IWebHostEnvironment env){    ...    app.UseStaticFiles();    app.UseSpaStaticFiles();    app.UseRouting(); app.UseEndpoints( ...