WebCallerAbstractIdea.cs

WebCallerAbstractIdea.cs

public class MyWebCaller : WebCaller
	{
		private static readonly HttpClient client = CreateHttpClient();

		public static HttpClient CreateHttpClient()
		{
			var specialClient = new HttpClient();

			specialClient.DefaultRequestHeaders.ExpectContinue = false;

			return specialClient;
		}

		public override HttpClient Client => client;
	}

	public class NormalWebCaller : WebCaller
	{
		// Keep this static to not change
		private static readonly HttpClient client = new HttpClient();

		public override HttpClient Client => client;
	}

	public abstract class WebCaller
	{
		public abstract HttpClient Client { get; }

		public void Post(string url) => SendRequest(url);

		protected void SendRequest(string url)
		{
			var someMessage = new HttpRequestMessage();

			// Use the Abstract property
			Client.SendAsync(someMessage);
		}
	}