added swagger ui and implemented save, get, and stats api.

SampleApplication/Controllers/ShapeController.cs

@@ -2,6 +2,7 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using SampleApplication.Entities;
+using System.Threading.Tasks;
 
 namespace SampleApplication.Controllers
 {
@@ -29,7 +30,7 @@ namespace SampleApplication.Controllers
 
         [HttpPost]
 
-        public IActionResult AddShapes(List<ShapeInput> shapes)
+        public async Task<IActionResult> AddShapes([FromBody] List<ShapeInput> shapes)
 
         {
 
@@ -41,11 +42,18 @@ namespace SampleApplication.Controllers
 
             // - Save via EF Core
 
+            if (!shapes.Any())
+            {
+                throw new ArgumentNullException();
+            }
+            
             this._calculator.AddShapes(shapes);
 
-            this._db.Shapes.AddRange(shapes);
+           this._db.Shapes.AddRange(shapes);
 
-            return Ok(shapes);
+            await this._db.SaveChangesAsync();
+
+            return Ok();
         }
 
         [HttpGet("{id}")]
@@ -58,19 +66,33 @@ namespace SampleApplication.Controllers
 
             var shape = await this._db.Shapes.Where(s => s.Id == id).FirstOrDefaultAsync();
 
+            if(shape is null)
+            {
+                return NotFound();
+            }
+
             return Ok(shape);
         }
 
         [HttpGet("stats")]
 
-        public IActionResult Stats()
+        public async Task<IActionResult> Stats()
-
         {
 
             // TODO:
 
-            throw new NotImplementedException();
+            var shapes = await this._db.Shapes.ToListAsync();
 
+            if (!shapes.Any())
+            {
+                return NoContent();
+            }
+
+            this._calculator.AddShapes(shapes);
+
+            var stats = this._calculator.GetStatistics();
+
+            return Ok(new {stats.TotalShapes, stats.TotalArea, stats.MaxPerimeterId});
         }
 
     }

SampleApplication/Entities/ShapeInput.cs

@@ -8,6 +8,6 @@ namespace SampleApplication.Entities
 
         public ShapeType Type { get; set; }
 
-        public double[] Dimensions { get; set; }
+        public required double[] Dimensions { get; set; }
     }
 }

SampleApplication/Program.cs

@@ -1,5 +1,8 @@
 using Microsoft.EntityFrameworkCore;
+using Microsoft.OpenApi;
 using SampleApplication;
+using System.Reflection;
+using System.IO;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -8,12 +11,24 @@ var builder = WebApplication.CreateBuilder(args);
 builder.Services.AddDbContext<SampleDbContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));
 
-builder.Services.AddSingleton<ShapeProcessor>();
+builder.Services.AddScoped<ShapeProcessor>();
 
 builder.Services.AddControllers();
 // Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
 builder.Services.AddOpenApi();
 
+builder.Services.AddSwaggerGen(c =>
+{
+    // XML Comments file for API Documentation
+    var xmlCommentsFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
+    var xmlCommentsFullPath = Path.Combine(AppContext.BaseDirectory, xmlCommentsFile);
+
+    if (File.Exists(xmlCommentsFullPath))
+    {
+        c.IncludeXmlComments(xmlCommentsFullPath);
+    }
+});
+
 var app = builder.Build();
 
 
@@ -21,6 +36,9 @@ var app = builder.Build();
 if (app.Environment.IsDevelopment())
 {
     app.MapOpenApi();
+
+    app.UseSwagger();
+    app.UseSwaggerUI();
 }
 
 app.UseHttpsRedirection();

SampleApplication/Properties/launchSettings.json

@@ -1,23 +1,22 @@
-{
+{
-  "$schema": "https://json.schemastore.org/launchsettings.json",
   "profiles": {
     "http": {
       "commandName": "Project",
-      "dotnetRunMessages": true,
-      "launchBrowser": false,
-      "applicationUrl": "http://localhost:5078",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
-      }
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5078"
     },
     "https": {
       "commandName": "Project",
-      "dotnetRunMessages": true,
+      "launchBrowser": true,
-      "launchBrowser": false,
-      "applicationUrl": "https://localhost:7203;http://localhost:5078",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
-      }
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7203;http://localhost:5078"
     }
-  }
+  },
+  "$schema": "https://json.schemastore.org/launchsettings.json"
 }

SampleApplication/SampleApplication.csproj

@@ -15,6 +15,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="10.0.2" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="10.0.2" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.0" />
   </ItemGroup>
 
 </Project>

SampleApplication/SampleDbContext.cs

@@ -1,4 +1,6 @@
-using Microsoft.EntityFrameworkCore;
+using System;
+using System.Linq;
+using Microsoft.EntityFrameworkCore;
 
 namespace SampleApplication
 {
@@ -9,5 +11,20 @@ namespace SampleApplication
         }
 
         public DbSet<Entities.ShapeInput> Shapes { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            base.OnModelCreating(modelBuilder);
+            modelBuilder.Entity<Entities.ShapeInput>(entity =>
+            {
+                entity.HasKey(e => e.Id);
+                entity.Property(e => e.Id).ValueGeneratedOnAdd();
+                entity.Property(e => e.Type).IsRequired();
+                entity.Property(e => e.Dimensions).IsRequired();
+                entity.Property(e => e.Dimensions).HasConversion(
+                    v => string.Join(',', v),
+                    v => v.Split(',', StringSplitOptions.RemoveEmptyEntries).Select(double.Parse).ToArray());
+            });
+        }
     }
 }