Sample Code for IResultImplementations

fundamentals/minimal-apis/samples/IResultImplementation/ContactsHandler.cs

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+using IResultImplementation.Data;
+using IResultImplementation.Models;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace IResultImplementation
+{
+    public static class ContactsHandler
+    {
+
+        // GET: api/Contacts
+        public static IResult GetContacts(IResultImplementationContext context)
+        {
+            return TypedResults.Ok(context.Contact.ToList());
+        }
+
+        // GET: api/Contacts/5
+        [HttpGet("{id}")]
+        public static IResult GetContact(IResultImplementationContext context, int id)
+        {
+            var contact = context.Contact.Where(c => c.Id == id).FirstOrDefault();
+
+            if (contact == null)
+            {
+                return TypedResults.NotFound();
+            }
+
+            return TypedResults.Ok(contact);
+        }
+
+
+        // POST: api/Contacts
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPost]
+        public static IResult PostContact(IResultImplementationContext context, Contact contact)
+        {
+            context.Contact.Add(contact);
+            context.SaveChanges();
+
+            return TypedResults.CreatedAtRoute<Contact>(contact, nameof(ContactsHandler.GetContact));
+        }
+
+        // PUT: api/Contacts/5
+        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
+        [HttpPut("{id}")]
+        public static IResult PutContact(IResultImplementationContext context, int id, Contact contact)
+        {
+            if (id != contact.Id)
+            {
+                return TypedResults.BadRequest();
+            }
+
+            context.Entry(contact).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
+
+            try
+            {
+                context.SaveChanges();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!ContactExists(context, id))
+                {
+                    return TypedResults.NotFound();
+                }
+                else
+                {
+                    throw;
+                }
+            }
+
+            return TypedResults.NoContent();
+        }
+
+
+        // DELETE: api/Contacts/5
+        [HttpDelete("{id}")]
+        public static IResult DeleteContact(IResultImplementationContext context, int id)
+        {
+            if (context.Contact == null)
+            {
+                return TypedResults.NotFound();
+            }
+            var contact = context.Contact.Find(id);
+            if (contact == null)
+            {
+                return TypedResults.NotFound();
+            }
+
+            context.Contact.Remove(contact);
+            context.SaveChanges();
+
+            return TypedResults.NoContent();
+        }
+
+        private static bool ContactExists(IResultImplementationContext context, int id)
+        {
+            return (context.Contact?.Any(e => e.Id == id)).GetValueOrDefault();
+        }
+    }
+}

fundamentals/minimal-apis/samples/IResultImplementation/Data/IResultImplementationContext.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using IResultImplementation.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace IResultImplementation.Data
+{
+    public class IResultImplementationContext : DbContext
+    {
+        public IResultImplementationContext(DbContextOptions<IResultImplementationContext> options)
+            : base(options)
+        {
+        }
+        public IResultImplementationContext()
+        {
+        }
+
+
+        public virtual DbSet<Contact> Contact { get; set; } = default!;
+    }
+}

fundamentals/minimal-apis/samples/IResultImplementation/IResultImplementation.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="7.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0-preview-20221221-03" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.3" />
+    <PackageReference Include="Moq" Version="4.18.4" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.0.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.0.2" />
+  </ItemGroup>
+
+</Project>

fundamentals/minimal-apis/samples/IResultImplementation/Models/Contact.cs

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+namespace IResultImplementation.Models
+{
+    public class Contact
+    {
+        public int Id { get; set; }
+
+        public string Name { get; set; } = String.Empty;
+        public string Email { get; set; } = String.Empty;
+        public string PhoneNumber { get; set; } = String.Empty;
+    }
+}

fundamentals/minimal-apis/samples/IResultImplementation/Program.cs

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+using IResultImplementation;
+using IResultImplementation.Data;
+using Microsoft.EntityFrameworkCore;
+
+var builder = WebApplication.CreateBuilder(args);
+builder.Services.AddDbContext<IResultImplementationContext>(options =>
+ options.UseInMemoryDatabase("Contacts"));
+// Add services to the container.
+builder.Services.AddControllers();
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+
+app.UseHttpsRedirection();
+app.MapControllers();
+
+app.MapGet("/api/contacts", ContactsHandler.GetContacts);
+app.MapGet("/api/contacts/{id}", ContactsHandler.GetContact);
+app.MapPost("/api/contacts", ContactsHandler.PostContact);
+app.MapPut("/api/contacts/{id}", ContactsHandler.PutContact);
+app.MapDelete("/api/contacts/{id}", ContactsHandler.DeleteContact);
+
+app.Run();

fundamentals/minimal-apis/samples/IResultImplementation/Tests/IResultImplementationTest.cs

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+using IResultImplementation.Data;
+using IResultImplementation.Models;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+
+namespace IResultImplementation.Tests
+{
+    [TestClass]
+    public class IResultImplementationTest
+    {
+        public IQueryable<Contact>? Data { get; set; }
+        public Mock<DbSet<Contact>>? MockSet { get; set; }
+        [TestInitialize]
+        public void Setup()
+        {
+            Data = new List<Contact>()
+            {
+                new Contact() { Id = 1, Name = "John", Email = "john@tmail.com", PhoneNumber = "1234567890" },
+                new Contact() { Id = 2, Name = "Jane", Email = "Jane@kam.com", PhoneNumber = "29384736273" },
+                new Contact() {Id = 3, Name = "Kahn", Email = "ema@email.com", PhoneNumber = "23239029202"}
+            }.AsQueryable();
+
+            MockSet = new Mock<DbSet<Contact>>();
+            MockSet.As<IQueryable<Contact>>().Setup(m => m.Provider).Returns(Data.Provider);
+            MockSet.As<IQueryable<Contact>>().Setup(m => m.Expression).Returns(Data.Expression);
+            MockSet.As<IQueryable<Contact>>().Setup(m => m.ElementType).Returns(Data.ElementType);
+            MockSet.As<IQueryable<Contact>>().Setup(m => m.GetEnumerator()).Returns(() => Data.GetEnumerator());
+        }
+        [TestMethod]
+        public void GetContactsReturnsContactsFromDatabase()
+        {
+            //Arrange
+            var mockContext = new Mock<IResultImplementationContext>();
+            mockContext.Setup(c => c.Contact).Returns(MockSet!.Object);
+            int expectedStatusCode = 200;
+            int expectedItemCount = 3;
+
+            //Act
+            var result = (Ok<List<Contact>>)ContactsHandler.GetContacts(mockContext.Object);
+
+            //Assert
+            Assert.AreEqual(expectedStatusCode, result.StatusCode);
+            Assert.AreEqual(expectedItemCount, result.Value?.Count);
+
+        }
+
+        [TestMethod]
+        public void GetContactReturnsAContactFromDatabase()
+        {
+            //Arrange
+            var mockContext = new Mock<IResultImplementationContext>();
+            mockContext.Setup(c => c.Contact).Returns(MockSet!.Object);
+            int expectedStatusCode = 200;
+            int expectedUserId = 2;
+
+            //Act
+            var result = (Ok<Contact>)ContactsHandler.GetContact(mockContext.Object, expectedUserId);
+
+            //Assert
+            Assert.AreEqual(expectedStatusCode, result.StatusCode);
+            Assert.AreEqual(expectedUserId, result.Value?.Id);
+
+        }
+
+        [TestMethod]
+        public void GetContactReturnsNotFound()
+        {
+            //Arrange
+            var mockContext = new Mock<IResultImplementationContext>();
+            mockContext.Setup(c => c.Contact).Returns(MockSet!.Object);
+            int expectedStatusCode = 404;
+            int expectedUserId = 20;
+
+            //Act
+            var result = (NotFound)ContactsHandler.GetContact(mockContext.Object, expectedUserId);
+
+            //Assert
+            Assert.AreEqual(expectedStatusCode, result.StatusCode);
+
+        }
+
+        [TestMethod]
+        public void CreateTodoSavesContactToDatabase()
+        {
+            //Arrange
+            var mockDbContextOptions = new Mock<DbContextOptions<IResultImplementationContext>>();
+            var mockContext = new Mock<IResultImplementationContext>();
+            mockContext.Setup(c => c.Contact).Returns(MockSet!.Object);
+            mockContext.Setup(c => c.Contact.Add(It.IsAny<Contact>())).Callback<Contact>(contact => Data = Data.Append(contact));
+            var newContact = new Contact()
+            {
+                Id = 4,
+                Name = "John Doe",
+                Email = "akd@omail.com",
+                PhoneNumber = "1234567890"
+            };
+            int expectedStatusCode = 201;
+            int expectedItemCount = 4;
+
+            //Act
+            var result = (CreatedAtRoute<Contact>)ContactsHandler.PostContact(mockContext.Object, newContact);
+
+            //Assert
+            Assert.AreEqual(newContact, result.Value);
+            Assert.AreEqual(expectedStatusCode, result.StatusCode);
+            Assert.AreEqual(expectedItemCount, Data.Count());
+        }
+    }
+}

fundamentals/minimal-apis/samples/IResultImplementation/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

fundamentals/minimal-apis/samples/IResultImplementation/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}