Nuix · KatelynKunzmann · Nov 3, 2025
diff --git a/InvestmentWebAPI/.gitignore b/InvestmentWebAPI/.gitignore
@@ -0,0 +1,11 @@
+InvestmentPerformanceWebAPI/bin/
+InvestmentPerformanceWebAPI/obj/
+InvestmentPerformanceWebAPI/Migrations/obj/
+InvestmentPerformanceWebAPI/Migrations/bin/
+InvestmentPerformanceWebAPI.Tests/bin/
+InvestmentPerformanceWebAPI.Tests/obj/
+
+InvestmentPerformanceWebAPI/*.db*
+*.db
+*.db-shm
+*.db-wal
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI.Tests/InvestmentControllerUnitTests.cs b/InvestmentWebAPI/InvestmentPerformanceWebAPI.Tests/InvestmentControllerUnitTests.cs
@@ -0,0 +1,106 @@
+using InvestmentPerformanceWebAPI.Controllers;
+using InvestmentPerformanceWebAPI.Data;
+using InvestmentPerformanceWebAPI.Models;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Moq;
+using Xunit;
+
+namespace InvestmentPerformanceWebAPI.Tests.Controllers
+{
+    public class InvestmentControllerTests
+    {
+        private InvestmentDbContext GetInMemoryDbContext()
+        {
+            var options = new DbContextOptionsBuilder<InvestmentDbContext>()
+                .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+                .Options;
+
+            var context = new InvestmentDbContext(options);
+
+            var user = new User
+            {
+                UserId = 1,
+                Name = "Alice",
+                Investments = new List<Investment>
+                {
+                    new Investment
+                    {
+                        InvestmentId = 1,
+                        UserId = 1,
+                        Name = "Apple Inc.",
+                        Ticker = "AAPL",
+                        NumberOfShares = 10,
+                        CostBasisPerShare = 120,
+                        CurrentPrice = 175,
+                        TimeOfPurchase = new DateTime(2023, 6, 10)
+                    }
+                }
+            };
+
+            context.Users.Add(user);
+            context.SaveChanges();
+
+            return context;
+        }
+
+        [Fact]
+        public async Task GetInvestmentsForUser_ReturnsInvestments_WhenUserExists()
+        {
+            var context = GetInMemoryDbContext();
+            var logger = Mock.Of<ILogger<InvestmentController>>();
+            var controller = new InvestmentController(context, logger);
+
+            var result = await controller.GetInvestmentsForUser(1);
+
+            var okResult = Assert.IsType<OkObjectResult>(result.Result);
+            var investments = Assert.IsAssignableFrom<IEnumerable<object>>(okResult.Value);
+            Assert.Single(investments);
+        }
+
+        [Fact]
+        public async Task GetInvestmentDetails_ReturnsCorrectDetails_WhenInvestmentExists()
+        {
+            var context = GetInMemoryDbContext();
+            var logger = Mock.Of<ILogger<InvestmentController>>();
+            var controller = new InvestmentController(context, logger);
+
+            var result = await controller.GetInvestmentDetails(1, 1);
+
+            var okResult = Assert.IsType<OkObjectResult>(result.Result);
+            var investment = okResult.Value;
+            Assert.NotNull(investment);
+
+            var name = investment.GetType().GetProperty("Name")?.GetValue(investment);
+            Assert.Equal("Apple Inc.", name);
+        }
+
+        [Fact]
+        public async Task GetInvestmentsForUser_ReturnsNotFound_WhenUserDoesNotExist()
+        {
+            var context = GetInMemoryDbContext();
+            var logger = Mock.Of<ILogger<InvestmentController>>();
+            var controller = new InvestmentController(context, logger);
+
+            var result = await controller.GetInvestmentsForUser(13);
+
+            var notFoundResult = Assert.IsType<NotFoundObjectResult>(result.Result);
+            Assert.Equal("User 13 not found", notFoundResult.Value);
+        }
+
+        [Fact]
+        public async Task GetInvestmentDetails_ReturnsNotFound_WhenInvestmentDoesNotExist()
+        {
+            var context = GetInMemoryDbContext();
+            var logger = Mock.Of<ILogger<InvestmentController>>();
+            var controller = new InvestmentController(context, logger);
+
+            var result = await controller.GetInvestmentDetails(1, 50);
+
+            var notFoundResult = Assert.IsType<NotFoundObjectResult>(result.Result);
+            Assert.Equal("Investment 50 not found for user 1", notFoundResult.Value);
+        }
+
+    }
+}
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI.Tests/InvestmentPerformanceWebAPI.Tests.csproj b/InvestmentWebAPI/InvestmentPerformanceWebAPI.Tests/InvestmentPerformanceWebAPI.Tests.csproj
@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.10" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <PackageReference Include="Moq" Version="4.20.72" />
+    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\InvestmentPerformanceWebAPI\InvestmentPerformanceWebAPI.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI.sln b/InvestmentWebAPI/InvestmentPerformanceWebAPI.sln
@@ -0,0 +1,48 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InvestmentPerformanceWebAPI", "InvestmentPerformanceWebAPI\InvestmentPerformanceWebAPI.csproj", "{CC862C88-821D-4AEF-A507-B3A49D42F158}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "InvestmentPerformanceWebAPI.Tests", "InvestmentPerformanceWebAPI.Tests\InvestmentPerformanceWebAPI.Tests.csproj", "{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|x64.Build.0 = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Debug|x86.Build.0 = Debug|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|x64.ActiveCfg = Release|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|x64.Build.0 = Release|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|x86.ActiveCfg = Release|Any CPU
+		{CC862C88-821D-4AEF-A507-B3A49D42F158}.Release|x86.Build.0 = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|x64.Build.0 = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Debug|x86.Build.0 = Debug|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|x64.ActiveCfg = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|x64.Build.0 = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|x86.ActiveCfg = Release|Any CPU
+		{AABDE67A-1EB9-4B52-B8E3-48D483E1F026}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI/Controllers/InvestmentController.cs b/InvestmentWebAPI/InvestmentPerformanceWebAPI/Controllers/InvestmentController.cs
@@ -0,0 +1,96 @@
+using InvestmentPerformanceWebAPI.Data;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace InvestmentPerformanceWebAPI.Controllers
+{
+    [ApiController]
+    [Route("api/v1/users/{userId}/[controller]")]
+    [ApiVersion("1.0")]
+    public class InvestmentController : ControllerBase
+    {
+        private readonly InvestmentDbContext _context;
+        private readonly ILogger<InvestmentController> _logger;
+
+        public InvestmentController(InvestmentDbContext context, ILogger<InvestmentController> logger)
+        {
+            _context = context;
+            _logger = logger;
+        }
+
+        // GET: api/v1/users/{userId}/investments
+        [HttpGet]
+        public async Task<ActionResult<IEnumerable<object>>> GetInvestmentsForUser(int userId)
+        {
+            try
+            {
+                _logger.LogInformation("Fetching investments for user {UserId}", userId);
+
+                var user = await _context.Users
+                    .Include(u => u.Investments)
+                    .FirstOrDefaultAsync(u => u.UserId == userId);
+
+                if (user == null)
+                {
+                    _logger.LogWarning("User {UserId} not found", userId);
+                    return NotFound($"User {userId} not found");
+                }
+
+                var investments = user.Investments.Select(i => new
+                {
+                    i.InvestmentId,
+                    i.Name
+                });
+
+                return Ok(investments);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Unexpected error occurred when fetching investments for user {userId}", userId);
+                return StatusCode(500, "An unepected error occurred, please try again later.");
+            }
+
+        }
+
+        // GET: api/v1/users/{userId}/investments/{investmentId}
+        [HttpGet("{investmentId}")]
+        public async Task<ActionResult<object>> GetInvestmentDetails(int userId, int investmentId)
+        {
+            try
+            {
+                _logger.LogInformation("Fetching details for investment {investmentId} for user {userId}", investmentId, userId);
+
+                var investment = await _context.Investments
+                    .Where(i => i.UserId == userId && i.InvestmentId == investmentId)
+                    .FirstOrDefaultAsync();
+
+                if (investment == null)
+                {
+                    _logger.LogWarning("Investment {investmentId} not found for user {userId}", investmentId, userId);
+                    return NotFound($"Investment {investmentId} not found for user {userId}");
+                }
+
+                var result = new
+                {
+                    investment.InvestmentId,
+                    investment.Name,
+                    investment.Ticker,
+                    investment.NumberOfShares,
+                    investment.CostBasisPerShare,
+                    investment.CurrentPrice,
+                    investment.CurrentValue,
+                    investment.Term,
+                    investment.TotalGainLoss
+                };
+
+                return Ok(result);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Unexpected error occurred when fetching investment {investmentId} details for user {userId}", investmentId, userId);
+                return StatusCode(500, "An unepected error occurred, please try again later.");
+            }
+
+        }
+    }
+}
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI/Data/InvestmentDbContext.cs b/InvestmentWebAPI/InvestmentPerformanceWebAPI/Data/InvestmentDbContext.cs
@@ -0,0 +1,65 @@
+using Microsoft.EntityFrameworkCore;
+using InvestmentPerformanceWebAPI.Models;
+
+namespace InvestmentPerformanceWebAPI.Data
+{
+    public class InvestmentDbContext : DbContext
+    {
+        public InvestmentDbContext(DbContextOptions<InvestmentDbContext> options) : base(options)
+        {
+
+        }
+
+        public DbSet<User> Users => Set<User>();
+        public DbSet<Investment> Investments => Set<Investment>();
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<User>()
+                .HasMany(u => u.Investments)
+                .WithOne(i => i.User!)
+                .HasForeignKey(i => i.UserId);
+
+            modelBuilder.Entity<User>().HasData(
+                new User { UserId = 1, Name = "Alice" },
+                new User { UserId = 2, Name = "Bob" }
+            );
+
+            modelBuilder.Entity<Investment>().HasData(
+                new Investment
+                {
+                    InvestmentId = 1,
+                    UserId = 1,
+                    Name = "Apple Inc.",
+                    Ticker = "AAPL",
+                    NumberOfShares = 10,
+                    CostBasisPerShare = 120.00m,
+                    CurrentPrice = 175.00m,
+                    TimeOfPurchase = new DateTime(2023, 6, 10)
+                },
+                new Investment
+                {
+                    InvestmentId = 2,
+                    UserId = 1,
+                    Name = "Tesla Motors",
+                    Ticker = "TSLA",
+                    NumberOfShares = 5,
+                    CostBasisPerShare = 220.00m,
+                    CurrentPrice = 200.00m,
+                    TimeOfPurchase = new DateTime(2025, 9, 15)
+                },
+                new Investment
+                {
+                    InvestmentId = 3,
+                    UserId = 2,
+                    Name = "Amazon.com",
+                    Ticker = "AMZN",
+                    NumberOfShares = 8,
+                    CostBasisPerShare = 95.00m,
+                    CurrentPrice = 130.00m,
+                    TimeOfPurchase = new DateTime(2024, 2, 1)
+                }
+            );
+        }
+    }
+}
diff --git a/InvestmentWebAPI/InvestmentPerformanceWebAPI/InvestmentPerformanceWebAPI.csproj b/InvestmentWebAPI/InvestmentPerformanceWebAPI/InvestmentPerformanceWebAPI.csproj
@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Versioning" Version="5.1.0" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.10">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.6" />
+  </ItemGroup>
+
+</Project>