Create TeapotController

Api/Controllers/TeaController.cs

@@ -0,0 +1,35 @@
+using Application.Exceptions;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Api.Controllers;
+[Route("api/[controller]")]
+[ApiController]
+public class TeaController : ControllerBase
+{
+    [HttpGet]
+    [Route("GetTea")]
+    [ProducesResponseType<string>(200)]
+    public string GetTea() => teaArt;
+
+    [HttpGet]
+    [Route("GetCoffee")]
+    [ProducesResponseType<ErrorDto>(418)]
+    public ActionResult GetCoffee()
+    {
+        var error = new ErrorDto(new PermanentlyTeapotException(), "I'm a teapot, not a coffemaker, permanently now.");
+        return new ObjectResult(error)
+        {
+            StatusCode = 418
+        };
+    }
+
+    private static readonly string teaArt = """
+                     ;,'
+             _o_    ;:;'
+         ,-.'---`.__ ;
+        ((j`=====',-'
+         `-\     /
+            `-=-'
+        
+        """;
+}

Application/Exceptions/IAmTeapotException.cs

@@ -0,0 +1,2 @@
+namespace Application.Exceptions;
+public class PermanentlyTeapotException : BrewABeerException;