Return blog post count

src/Robware.Api.Blog.Tests/BlogControllerTests.cs

@@ -132,5 +132,27 @@ namespace Robware.Api.Blog.Tests {
 			var controller = new BlogController(logger, repo);
 			(await controller.GetLatestPost()).Result.Should().BeOfType<NotFoundObjectResult>();
 		}
+
+		[Fact]
+		public async Task GetCount_ReturnsBlogPostCount() {
+			var logger = Substitute.For<ILogger<BlogController>>();
+			var repo = Substitute.For<IBlogRepository>();
+
+			repo.GetCountAsync().Returns(1);
+
+			var controller = new BlogController(logger, repo);
+			(await controller.GetCount()).Value.Should().Be(1);
+		}
+
+		[Fact]
+		public async Task GetCount_WhenNoPostsExist_ReturnsZero() {
+			var logger = Substitute.For<ILogger<BlogController>>();
+			var repo = Substitute.For<IBlogRepository>();
+
+			repo.GetCountAsync().Throws(new ItemNotFoundException("", null));
+
+			var controller = new BlogController(logger, repo);
+			(await controller.GetCount()).Value.Should().Be(0);
+		}
 	}
 }

src/Robware.Api.Blog/Controllers/BlogController.cs

@@ -1,4 +1,5 @@
-using System.Linq;
+using System;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
@@ -62,8 +63,16 @@ namespace Robware.Api.Blog.Controllers {
 			}
 		}
 
-		//[HttpGet]
-		//Task<int> GetCount();
+		[HttpGet(nameof(GetCount))]
+		public async Task<ActionResult<int>> GetCount() {
+			try {
+				return await _blogRepository.GetCountAsync();
+			}
+			catch (ItemNotFoundException e) {
+				_logger.Log(LogLevel.Error, e.Message);
+				return 0;
+			}
+		}
 
 		//[HttpPost]
 		//Task<BlogPost> SavePost(BlogPost post);