Configure vs ConfigureServices in ASP.NET Core 2.0

Both words sound similar but there is a very thin line which differentiates these two. Let’s have a look at key differences between these two methods.

	Configure	ConfigureServices
Main purpose	Does all the initial setup	Does service configurations
Default Location	Resides in Startup.cs	Resides in Startup.cs
Execution sequence	Hits prior to ConfigureServices	Hits after Configure
Ordering	Order of steps mentioned in this method matters	Order of the statements written to add services doesn’t matter
HTTP request	HTTP request first hits in this method	-
Parameters	Configure(IApplicationBuilder app, IHostingEnvironment env)	ConfigureServices(IServiceCollection services)
Middleware	Setting up all the middleware are done in this method	-
Services	-	All the required services are added in this method

Note: All the services which are added to IServiceCollection can be utilized across the application.