Removed strongly typed inventory objects

Added EAV inventory types

Added EAV object handling philosophy

Added controllers

Added EF Core migration integration

.gitignore

@@ -9,6 +9,8 @@
 .idea/**/dictionaries
 .idea/**/shelf
 
+.idea/
+
 # AWS User-specific
 .idea/**/aws.xml
 
@@ -479,3 +481,5 @@ FodyWeavers.xsd
 # JetBrains Rider
 *.sln.iml
 
+# Docker
+.env

WyvernInventory.API/Controllers/InventoryController.cs

@@ -1,40 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-using WyvernInventory.Core.Interfaces.Services;
-using WyvernInventory.Core.Models;
-
-namespace WyvernInventory.API.Controllers;
-
-[ApiController]
-[Route("[controller]")]
-public class InventoryController(IDataObjectService<GenericInventoryItem> genericItemService) 
-    : ControllerBase
-{
-    private readonly IDataObjectService<GenericInventoryItem> _genericItemService = genericItemService;
-
-    [HttpPost]
-    public List<GenericInventoryItem> Get([FromBody] List<GenericInventoryItem> items)
-    {
-        return _genericItemService.GetAsync(_ => _).Result;
-    }
-
-    [HttpPost("upsert")]
-    public IResult Post([FromBody] List<GenericInventoryItem> items)
-    {
-        (int, int) results = _genericItemService.UpsertAsync(items).Result;
-        
-        if (results.Item1 > 0 || results.Item2 > 0)
-        {
-            return Results.StatusCode(201);
-        }
-
-        return Results.Ok();
-    }
-
-    [HttpDelete("{id}")]
-    public IResult Delete([FromRoute] int id)
-    {
-        _genericItemService.DeleteAsync(new() { new() { Id = id } }).Wait();
-        
-        return Results.Ok();
-    }
-}

WyvernInventory.API/Controllers/WeatherForecastController.cs

@@ -1,37 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace WyvernInventory.API.Controllers;
-
-[ApiController]
-[Route("[controller]")]
-public class WeatherForecastController : ControllerBase
-{
-    private static readonly string[] Summaries =
-    [
-        "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-    ];
-
-    [HttpGet(Name = "GetWeatherForecast")]
-    public IEnumerable<WeatherForecast> GetBwah()
-    {
-        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
-            {
-                Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
-                TemperatureC = Random.Shared.Next(-20, 55),
-                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
-            })
-            .ToArray();
-    }
-    
-    [HttpGet("bwah", Name = "GetWeatherForecastBwah")]
-    public IEnumerable<WeatherForecast> Get()
-    {
-        return Enumerable.Range(1, 2).Select(index => new WeatherForecast
-            {
-                Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
-                TemperatureC = Random.Shared.Next(-20, 55),
-                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
-            })
-            .ToArray();
-    }
-}

WyvernInventory.API/Controllers/api/v1/InventoryItemController.cs

@@ -0,0 +1,66 @@
+using Microsoft.AspNetCore.Mvc;
+using Serilog.Events;
+using WyvernInventory.Core.Interfaces.Services;
+using WyvernInventory.Core.Models;
+using ILogger = Serilog.ILogger;
+
+namespace WyvernInventory.API.Controllers.api.v1;
+
+[ApiController]
+[Route("api/v1/[controller]")]
+public class InventoryItemController(IInventoryItemService inventoryItemService, ILogger logger) : ControllerBase
+{
+    private readonly IInventoryItemService _inventoryItemService = inventoryItemService;
+    private ILogger _logger = logger;
+
+    [HttpPost]
+    public ActionResult<List<InventoryItemDto>> Get([FromBody] List<InventoryItemRequest> items)
+    {
+        try
+        {
+            return _inventoryItemService.GetAsync(items).Result;
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+
+    [HttpPost("upsert")]
+    public ActionResult Post([FromBody] List<InventoryItemRequest> items)
+    {
+        try
+        {
+            (int, int) results = _inventoryItemService.UpsertAsync(items).Result;
+        
+            if (results.Item1 > 0 || results.Item2 > 0)
+            {
+                return Ok(new { Created = results.Item1, Updated = results.Item2 });
+            }
+
+            return Ok();
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+
+    [HttpDelete("{id}")]
+    public ActionResult Delete([FromRoute] int id)
+    {
+        try
+        {
+            int results = _inventoryItemService.DeleteAsync([new() { Id = id }]).Result;
+        
+            return Ok(results);
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+}

WyvernInventory.API/Controllers/api/v1/InventoryTypeController.cs

@@ -0,0 +1,67 @@
+using Microsoft.AspNetCore.HttpLogging;
+using Microsoft.AspNetCore.Mvc;
+using Serilog.Events;
+using WyvernInventory.Core.Interfaces.Services;
+using WyvernInventory.Core.Models;
+using ILogger = Serilog.ILogger;
+
+namespace WyvernInventory.API.Controllers.api.v1;
+
+[ApiController]
+[Route("api/v1/[controller]")]
+public class InventoryTypeController(IDataObjectService<InventoryType, InventoryTypeDto> inventoryTypeService, ILogger logger) : ControllerBase
+{
+    private readonly IDataObjectService<InventoryType, InventoryTypeDto> _inventoryTypeService = inventoryTypeService;
+    private ILogger _logger = logger;
+
+    [HttpPost]
+    public ActionResult<List<InventoryTypeDto>> Get([FromBody] List<InventoryType> items)
+    {
+        try
+        {
+            return _inventoryTypeService.GetAsync(items).Result;
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+
+    [HttpPost("upsert")]
+    public IActionResult Post([FromBody] List<InventoryType> items)
+    {
+        try
+        {
+            (int, int) results = _inventoryTypeService.UpsertAsync(items).Result;
+        
+            if (results.Item1 > 0 || results.Item2 > 0)
+            {
+                return Ok(new { Created = results.Item1, Updated = results.Item2 });
+            }
+
+            return Ok();
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+
+    [HttpDelete("{id}")]
+    public IActionResult Delete([FromRoute] int id)
+    {
+        try
+        {
+            int results = _inventoryTypeService.DeleteAsync([new() { Id = id }]).Result;
+        
+            return Ok(results);
+        }
+        catch (Exception e)
+        {
+            _logger.Write(LogEventLevel.Error, e, "An error occured");
+            return StatusCode(500, "Internal server error");
+        }
+    }
+}

WyvernInventory.API/Program.cs

@@ -1,27 +1,83 @@
+using System.Diagnostics;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using Serilog;
+using Serilog.Events;
 using WyvernInventory.Core.Interfaces.Repos;
 using WyvernInventory.Core.Interfaces.Services;
 using WyvernInventory.Core.Models;
+using WyvernInventory.Infrastructure.Data;
 using WyvernInventory.Infrastructure.Repos;
 using WyvernInventory.Infrastructure.Services;
+using ILogger = Serilog.ILogger;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// Add services to the container.
-
 builder.Services.AddControllers();
+
+builder.Services.AddScoped<IDataObjectService<InventoryType, InventoryTypeDto>, InventoryTypeService>();
+builder.Services.AddScoped<IDbObjectRepo<InventoryType, InventoryTypeDto>, InventoryTypeRepo>();
+builder.Services.AddScoped<IInventoryItemService, InventoryItemService>();
+builder.Services.AddScoped<IInventoryItemRepo, InventoryItemRepo>();
+
 // Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
 builder.Services.AddOpenApi();
-builder.Services.AddSingleton<IDbObjectRepo<GenericInventoryItem>, GenericInventoryItemRepo>();
+builder.Services.AddSwaggerGen();
-builder.Services.AddSingleton<IDataObjectService<GenericInventoryItem>, GenericInventoryItemService>();
+builder.Host.UseSerilog((context, services, configuration) =>
+    configuration
+        .ReadFrom.Configuration(context.Configuration)
+        .ReadFrom.Services(services)
+);
+
+if (builder.Configuration["Database:ConnectionString"].IsNullOrEmpty())
+{
+    ILogger logger = new LoggerConfiguration().ReadFrom.Configuration(builder.Configuration).CreateLogger();
+    
+    logger.Fatal("Database environment variables not found");
+    
+    Environment.Exit(1);
+}
+else
+{
+    builder.Services.AddDbContext<DBContext>(options =>
+    {
+        options
+            .UseSqlServer(builder.Configuration["Database:ConnectionString"]).EnableSensitiveDataLogging();
+
+        if (builder.Environment.IsDevelopment())
+        {
+            options
+                .EnableSensitiveDataLogging()
+                .EnableDetailedErrors()
+                .LogTo(msg => { Debug.WriteLine(msg); }, [DbLoggerCategory.Database.Command.Name], LogLevel.Information);
+        }
+    });
+}
 
 var app = builder.Build();
 
+using (var scope = app.Services.CreateScope())
+{
+    DBContext db =  scope.ServiceProvider.GetRequiredService<DBContext>();
+    var logger = scope.ServiceProvider.GetRequiredService<ILogger>();
+
+    if (db.Database.GetPendingMigrations().Any())
+    {
+        await db.Database.MigrateAsync().ConfigureAwait(false);
+        
+        logger.Write(LogEventLevel.Information, "Migrated database");
+    }
+}
+
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {
     app.MapOpenApi();
 }
 
+app.UseSwagger();
+app.UseSwaggerUI();
+
 app.UseHttpsRedirection();
 
 app.UseAuthorization();

WyvernInventory.API/Properties/launchSettings.json

@@ -14,7 +14,7 @@
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": false,
-      "applicationUrl": "https://localhost:7048;http://localhost:5244",
+      "applicationUrl": "https://0.0.0.0:7048;http://0.0.0.0:5244",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }

WyvernInventory.API/WeatherForecast.cs

@@ -1,12 +0,0 @@
-namespace WyvernInventory.API;
-
-public class WeatherForecast
-{
-    public DateOnly Date { get; set; }
-
-    public int TemperatureC { get; set; }
-
-    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-
-    public string? Summary { get; set; }
-}

WyvernInventory.API/WyvernInventory.API.csproj

@@ -9,6 +9,17 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.6"/>
+        <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.7" />
+        <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.7">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="Serilog" Version="4.3.1" />
+        <PackageReference Include="Serilog.AspNetCore" Version="10.0.0" />
+        <PackageReference Include="Serilog.Settings.Configuration" Version="10.0.0" />
+        <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
+        <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
+        <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.7" />
     </ItemGroup>
 
     <ItemGroup>

WyvernInventory.API/WyvernInventory.API.http

@@ -5,21 +5,42 @@ Content-Type: application/json
 
 [
     {
-        "name": "RTX 4070"
+        "name": "RTX 4070 Ti Super"
     }
 ]
 ###
 
-POST http://localhost:5244/inventory/upsert
+POST http://localhost:5244/api/v1/InventoryType
+Content-Type: application/json
+
+[
+]
+###
+
+POST http://localhost:5244/api/v1/inventorytype/upsert
 Content-Type: application/json
 
 [
   {
-    "name": "RTX 4070 Ti Super",
+    "name": "GPU",
-    "description": "Desktop GPU"
+    "attributedefinitions": [
+      {
+        "name": "Brand",
+        "dataType": 0
       },
       {
-    "name": "Ryzen 9 7950X3D",
+        "name": "VRAM_GB",
-    "description": "Desktop CPU 16c/32t"
+        "dataType": 1
+      },
+      {
+        "name": "Chipset",
+        "dataType": 0
       }
     ]
+  }
+]
+###
+
+DELETE http://localhost:5244/api/v1/InventoryType/6
+
+###

WyvernInventory.API/appsettings.json

@@ -5,5 +5,33 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "Serilog": {
+    "Using": [
+      "Serilog.Sinks.Console"
+    ],
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft": "Warning",
+        "Microsoft.Hosting.Lifetime": "Information",
+        "System": "Warning",
+        "Microsoft.EntityFrameworkCore": "Warning"
+      }
+    },
+    "Enrich": [
+      "FromLogContext"
+    ],
+    "WriteTo": [
+      {
+        "Name": "Console",
+        "Args": {
+          "outputTemplate": "[{Timestamp:MM-dd-yyyy HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}"
+        }
+      }
+    ]
+  },
+  "Database": {
+    "ConnectionString": ""
+  }
 }

WyvernInventory.Core/Interfaces/Repos/IDbObjectRepo.cs

@@ -1,8 +1,8 @@
 namespace WyvernInventory.Core.Interfaces.Repos;
 
-public interface IDbObjectRepo<T>
+public interface IDbObjectRepo<T, TDto>
 {
-    public Task<List<T>> GetAsync(Predicate<T>? filter = null);
+    public Task<List<TDto>> GetAsync(List<T>? filterList = null);
     public Task<(int created, int updated)> UpsertAsync(List<T> items);
-    public Task DeleteAsync(List<T> items);
+    public Task<int> DeleteAsync(List<T> items);
 }

WyvernInventory.Core/Interfaces/Repos/IInventoryItemRepo.cs

@@ -0,0 +1,10 @@
+using WyvernInventory.Core.Models;
+
+namespace WyvernInventory.Core.Interfaces.Repos;
+
+public interface IInventoryItemRepo
+{
+    public Task<List<InventoryItemDto>> GetAsync(List<InventoryItemRequest>? filterList = null);
+    public Task<(int created, int updated)> UpsertAsync(List<InventoryItemRequest> items);
+    public Task<int> DeleteAsync(List<InventoryItemRequest> items);
+}

WyvernInventory.Core/Interfaces/Services/IDataObjectService.cs

@@ -1,8 +1,8 @@
 namespace WyvernInventory.Core.Interfaces.Services;
 
-public interface IDataObjectService<T>
+public interface IDataObjectService<T, TDto>
 {
-    public Task<List<T>> GetAsync(Predicate<T>? filter = null);
+    public Task<List<TDto>> GetAsync(List<T>? filter = null);
     public Task<(int created, int updated)> UpsertAsync(List<T> items);
-    public Task DeleteAsync(List<T> items);
+    public Task<int> DeleteAsync(List<T> items);
 }

WyvernInventory.Core/Interfaces/Services/IInventoryItemService.cs

@@ -0,0 +1,10 @@
+using WyvernInventory.Core.Models;
+
+namespace WyvernInventory.Core.Interfaces.Services;
+
+public interface IInventoryItemService
+{
+    public Task<List<InventoryItemDto>> GetAsync(List<InventoryItemRequest>? filter = null);
+    public Task<(int created, int updated)> UpsertAsync(List<InventoryItemRequest> items);
+    public Task<int> DeleteAsync(List<InventoryItemRequest> items);
+}

WyvernInventory.Core/Models/Computer.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record Computer() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/Models/Cpu.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record Cpu() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/Models/Enums.cs

@@ -0,0 +1,13 @@
+namespace WyvernInventory.Core.Models;
+
+public class Enums
+{
+    public enum DataType
+    {
+        String,
+        Int,
+        Decimal,
+        Bool,
+        DateTime
+    }
+}

WyvernInventory.Core/Models/Gpu.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record Gpu() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/Models/InventoryAttributeDefinition.cs

@@ -0,0 +1,10 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryAttributeDefinition
+{
+    public int? Id { get; set; }
+    public int? TypeId { get; set; }
+    public InventoryType? Type { get; set; } = null!;
+    public string? Name { get; set; } = "";
+    public Enums.DataType? DataType { get; set; }
+}

WyvernInventory.Core/Models/InventoryAttributeDefinitionDto.cs

@@ -1,8 +1,8 @@
 namespace WyvernInventory.Core.Models;
 
-public record GenericInventoryItem()
+public record InventoryAttributeDefinitionDto
 {
     public int? Id { get; set; }
     public string? Name { get; set; }
-    public string? Description { get; set; }
+    public Enums.DataType? DataType { get; set; }
 }

WyvernInventory.Core/Models/InventoryAttributeValue.cs

@@ -0,0 +1,16 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryAttributeValue
+{
+    public int? Id { get; set; }
+    public int? ItemId { get; set; }
+    public InventoryItem? Item { get; set; } = null!;
+    public int? AttributeDefinitionId { get; set; }
+    public InventoryAttributeDefinition? AttributeDefinition { get; set; } = null!;
+    
+    public string? StringValue { get; set; }
+    public int? IntValue { get; set; }
+    public decimal? DecimalValue { get; set; }
+    public bool? BoolValue { get; set; }
+    public DateTime? DateTimeValue { get; set; }
+}

WyvernInventory.Core/Models/InventoryAttributeValueDto.cs

@@ -0,0 +1,16 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryAttributeValueDto
+{
+    public int? Id { get; set; }
+    public int? ItemId { get; set; }
+    public InventoryItemDto? Item { get; set; } = null!;
+    public int? AttributeDefinitionId { get; set; }
+    public InventoryAttributeDefinitionDto? AttributeDefinition { get; set; } = null!;
+    
+    public string? StringValue { get; set; }
+    public int? IntValue { get; set; }
+    public decimal? DecimalValue { get; set; }
+    public bool? BoolValue { get; set; }
+    public DateTime? DateTimeValue { get; set; }
+}

WyvernInventory.Core/Models/InventoryAttributeValueRequest.cs

@@ -0,0 +1,15 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryAttributeValueRequest
+{
+    
+    public int? Id { get; set; }
+    public int? ItemId { get; set; }
+    public int? AttributeDefinitionId { get; set; }
+    
+    public string? StringValue { get; set; }
+    public int? IntValue { get; set; }
+    public decimal? DecimalValue { get; set; }
+    public bool? BoolValue { get; set; }
+    public DateTime? DateTimeValue { get; set; }
+}

WyvernInventory.Core/Models/InventoryItem.cs

@@ -0,0 +1,10 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryItem
+{
+    public int? Id { get; set; }
+    public string? Name { get; set; } = "";
+    public int? TypeId { get; set; }
+    public InventoryType? Type { get; set; } = null!;
+    public List<InventoryAttributeValue>? AttributeValues { get; set; } = [];
+}

WyvernInventory.Core/Models/InventoryItemDto.cs

@@ -0,0 +1,9 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryItemDto
+{
+    public int Id { get; set; }
+    public string Name { get; set; } = "";
+    public InventoryTypeDto Type { get; set; }
+    public List<InventoryAttributeValueDto> AttributeValues { get; set; } = [];
+}

WyvernInventory.Core/Models/InventoryItemRequest.cs

@@ -0,0 +1,9 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryItemRequest
+{
+    public int? Id { get; set; }
+    public string? Name { get; set; } = "";
+    public int? TypeId { get; set; }
+    public List<InventoryAttributeValueRequest>? AttributeValues { get; set; } = [];
+}

WyvernInventory.Core/Models/InventoryType.cs

@@ -0,0 +1,8 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryType
+{
+    public int? Id { get; set; }
+    public string Name { get; set; } = "";
+    public List<InventoryAttributeDefinition> AttributeDefinitions { get; set; } = [];
+}

WyvernInventory.Core/Models/InventoryTypeDto.cs

@@ -0,0 +1,8 @@
+namespace WyvernInventory.Core.Models;
+
+public record InventoryTypeDto
+{
+    public int? Id { get; set; }
+    public string? Name { get; set; }
+    public List<InventoryAttributeDefinitionDto>? AttributeDefinitions { get; set; }
+}

WyvernInventory.Core/Models/Router.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record Router() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/Models/StorageDrive.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record StorageDrive() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/Models/Switch.cs

@@ -1,6 +0,0 @@
-namespace WyvernInventory.Core.Models;
-
-public record Switch() : GenericInventoryItem
-{
-    
-}

WyvernInventory.Core/WyvernInventory.Core.csproj

@@ -8,4 +8,17 @@
         <RootNamespace>WyvernInventory.Core</RootNamespace>
     </PropertyGroup>
 
+    <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.7" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.7">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="10.0.7" />
+      <PackageReference Include="Serilog" Version="4.3.1" />
+      <PackageReference Include="Serilog.Settings.Configuration" Version="10.0.0" />
+      <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
+      <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
+    </ItemGroup>
+
 </Project>

WyvernInventory.Infrastructure/Data/DBContext.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using WyvernInventory.Core.Models;
+
+namespace WyvernInventory.Infrastructure.Data;
+
+public class DBContext : DbContext
+{
+    
+    public DBContext(DbContextOptions<DBContext> options) : base(options) {}
+    
+    public DbSet<InventoryItem> InventoryItems => Set<InventoryItem>();
+    public DbSet<InventoryAttributeDefinition> InventoryAttributeDefinitions => Set<InventoryAttributeDefinition>();
+    public DbSet<InventoryAttributeValue> InventoryAttributeValues => Set<InventoryAttributeValue>();
+    public DbSet<InventoryType> InventoryTypes => Set<InventoryType>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<InventoryItem>()
+            .HasOne(_ => _.Type)
+            .WithMany()
+            .HasForeignKey(_ => _.TypeId);
+        
+        modelBuilder.Entity<InventoryAttributeValue>()
+            .HasOne(_ => _.Item)
+            .WithMany(_ => _.AttributeValues)
+            .HasForeignKey(_ => _.ItemId)
+            .OnDelete(DeleteBehavior.Cascade);
+        
+        modelBuilder.Entity<InventoryAttributeValue>()
+            .HasOne(_ => _.AttributeDefinition)
+            .WithMany()
+            .HasForeignKey(_ => _.AttributeDefinitionId)
+            .OnDelete(DeleteBehavior.NoAction);
+        
+        modelBuilder.Entity<InventoryAttributeDefinition>()
+            .HasOne(_ => _.Type)
+            .WithMany(_ => _.AttributeDefinitions)
+            .HasForeignKey(_ => _.TypeId)
+            .OnDelete(DeleteBehavior.Cascade);
+        
+        modelBuilder.Entity<InventoryAttributeValue>()
+            .HasIndex(_ => new { _.ItemId, _.AttributeDefinitionId})
+            .IsUnique();
+    }
+}

WyvernInventory.Infrastructure/Migrations/20260501023055_InitialCreate.Designer.cs

@@ -0,0 +1,182 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using WyvernInventory.Infrastructure.Data;
+
+#nullable disable
+
+namespace WyvernInventory.Infrastructure.Migrations
+{
+    [DbContext(typeof(DBContext))]
+    [Migration("20260501023055_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeDefinition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int?>("DataType")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("TypeId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TypeId");
+
+                    b.ToTable("InventoryAttributeDefinitions");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeValue", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("AttributeDefinitionId")
+                        .HasColumnType("int");
+
+                    b.Property<bool?>("BoolValue")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("DateTimeValue")
+                        .HasColumnType("datetime2");
+
+                    b.Property<decimal?>("DecimalValue")
+                        .HasColumnType("decimal(18,2)");
+
+                    b.Property<int?>("IntValue")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ItemId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("StringValue")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AttributeDefinitionId");
+
+                    b.HasIndex("ItemId", "AttributeDefinitionId")
+                        .IsUnique();
+
+                    b.ToTable("InventoryAttributeValues");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("TypeId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TypeId");
+
+                    b.ToTable("InventoryItems");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryType", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("InventoryTypes");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeDefinition", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryType", "Type")
+                        .WithMany("AttributeDefinitions")
+                        .HasForeignKey("TypeId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.Navigation("Type");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeValue", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryAttributeDefinition", "AttributeDefinition")
+                        .WithMany()
+                        .HasForeignKey("AttributeDefinitionId")
+                        .OnDelete(DeleteBehavior.NoAction)
+                        .IsRequired();
+
+                    b.HasOne("WyvernInventory.Core.Models.InventoryItem", "Item")
+                        .WithMany("AttributeValues")
+                        .HasForeignKey("ItemId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("AttributeDefinition");
+
+                    b.Navigation("Item");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryType", "Type")
+                        .WithMany()
+                        .HasForeignKey("TypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Type");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.Navigation("AttributeValues");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryType", b =>
+                {
+                    b.Navigation("AttributeDefinitions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WyvernInventory.Infrastructure/Migrations/20260501023055_InitialCreate.cs

@@ -0,0 +1,136 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace WyvernInventory.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "InventoryTypes",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Name = table.Column<string>(type: "nvarchar(max)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InventoryTypes", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "InventoryAttributeDefinitions",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    TypeId = table.Column<int>(type: "int", nullable: true),
+                    Name = table.Column<string>(type: "nvarchar(max)", nullable: true),
+                    DataType = table.Column<int>(type: "int", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InventoryAttributeDefinitions", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InventoryAttributeDefinitions_InventoryTypes_TypeId",
+                        column: x => x.TypeId,
+                        principalTable: "InventoryTypes",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "InventoryItems",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Name = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    TypeId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InventoryItems", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InventoryItems_InventoryTypes_TypeId",
+                        column: x => x.TypeId,
+                        principalTable: "InventoryTypes",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "InventoryAttributeValues",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ItemId = table.Column<int>(type: "int", nullable: false),
+                    AttributeDefinitionId = table.Column<int>(type: "int", nullable: false),
+                    StringValue = table.Column<string>(type: "nvarchar(max)", nullable: true),
+                    IntValue = table.Column<int>(type: "int", nullable: true),
+                    DecimalValue = table.Column<decimal>(type: "decimal(18,2)", nullable: true),
+                    BoolValue = table.Column<bool>(type: "bit", nullable: true),
+                    DateTimeValue = table.Column<DateTime>(type: "datetime2", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InventoryAttributeValues", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InventoryAttributeValues_InventoryAttributeDefinitions_AttributeDefinitionId",
+                        column: x => x.AttributeDefinitionId,
+                        principalTable: "InventoryAttributeDefinitions",
+                        principalColumn: "Id");
+                    table.ForeignKey(
+                        name: "FK_InventoryAttributeValues_InventoryItems_ItemId",
+                        column: x => x.ItemId,
+                        principalTable: "InventoryItems",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InventoryAttributeDefinitions_TypeId",
+                table: "InventoryAttributeDefinitions",
+                column: "TypeId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InventoryAttributeValues_AttributeDefinitionId",
+                table: "InventoryAttributeValues",
+                column: "AttributeDefinitionId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InventoryAttributeValues_ItemId_AttributeDefinitionId",
+                table: "InventoryAttributeValues",
+                columns: new[] { "ItemId", "AttributeDefinitionId" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InventoryItems_TypeId",
+                table: "InventoryItems",
+                column: "TypeId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "InventoryAttributeValues");
+
+            migrationBuilder.DropTable(
+                name: "InventoryAttributeDefinitions");
+
+            migrationBuilder.DropTable(
+                name: "InventoryItems");
+
+            migrationBuilder.DropTable(
+                name: "InventoryTypes");
+        }
+    }
+}

WyvernInventory.Infrastructure/Migrations/DBContextModelSnapshot.cs

@@ -0,0 +1,179 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using WyvernInventory.Infrastructure.Data;
+
+#nullable disable
+
+namespace WyvernInventory.Infrastructure.Migrations
+{
+    [DbContext(typeof(DBContext))]
+    partial class DBContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeDefinition", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int?>("DataType")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("TypeId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TypeId");
+
+                    b.ToTable("InventoryAttributeDefinitions");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeValue", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("AttributeDefinitionId")
+                        .HasColumnType("int");
+
+                    b.Property<bool?>("BoolValue")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTime?>("DateTimeValue")
+                        .HasColumnType("datetime2");
+
+                    b.Property<decimal?>("DecimalValue")
+                        .HasColumnType("decimal(18,2)");
+
+                    b.Property<int?>("IntValue")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ItemId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("StringValue")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AttributeDefinitionId");
+
+                    b.HasIndex("ItemId", "AttributeDefinitionId")
+                        .IsUnique();
+
+                    b.ToTable("InventoryAttributeValues");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("TypeId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TypeId");
+
+                    b.ToTable("InventoryItems");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryType", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("InventoryTypes");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeDefinition", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryType", "Type")
+                        .WithMany("AttributeDefinitions")
+                        .HasForeignKey("TypeId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.Navigation("Type");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryAttributeValue", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryAttributeDefinition", "AttributeDefinition")
+                        .WithMany()
+                        .HasForeignKey("AttributeDefinitionId")
+                        .OnDelete(DeleteBehavior.NoAction)
+                        .IsRequired();
+
+                    b.HasOne("WyvernInventory.Core.Models.InventoryItem", "Item")
+                        .WithMany("AttributeValues")
+                        .HasForeignKey("ItemId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("AttributeDefinition");
+
+                    b.Navigation("Item");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.HasOne("WyvernInventory.Core.Models.InventoryType", "Type")
+                        .WithMany()
+                        .HasForeignKey("TypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Type");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryItem", b =>
+                {
+                    b.Navigation("AttributeValues");
+                });
+
+            modelBuilder.Entity("WyvernInventory.Core.Models.InventoryType", b =>
+                {
+                    b.Navigation("AttributeDefinitions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

WyvernInventory.Infrastructure/Repos/GenericInventoryItemRepo.cs

@@ -1,53 +0,0 @@
-using WyvernInventory.Core.Interfaces.Repos;
-using WyvernInventory.Core.Models;
-
-namespace WyvernInventory.Infrastructure.Repos;
-
-public class GenericInventoryItemRepo : IDbObjectRepo<GenericInventoryItem>
-{
-    private List<GenericInventoryItem> _genericItemList = [];
-    
-    public async Task<List<GenericInventoryItem>> GetAsync(Predicate<GenericInventoryItem>? filter = null)
-    {
-        List<GenericInventoryItem> result = [];
-        
-        if (filter is null) return _genericItemList;
-
-        result.AddRange(_genericItemList.Where(item => filter(item)));
-
-        return result;
-    }
-
-    public async Task<(int created, int updated)> UpsertAsync(List<GenericInventoryItem> items)
-    {
-        int created = 0;
-        int updated = 0;
-        foreach (var item in items)
-        {
-            if (item.Id is not null && _genericItemList.Any(_ => _.Id == item.Id))
-            {
-                int index = _genericItemList.IndexOf(_genericItemList.Find(_ => _.Id == item.Id));
-                _genericItemList[index] = item;
-
-                updated++;
-            }
-            else
-            {
-                item.Id = _genericItemList.Count;
-                _genericItemList.Add(item);
-                
-                created++;
-            }
-        }
-        
-        return (created, updated);
-    }
-
-    public async Task DeleteAsync(List<GenericInventoryItem> items)
-    {
-        foreach (var item in items)
-        {
-            _genericItemList.Remove(_genericItemList.Find(_ => _.Id == item.Id));
-        }
-    }
-}

WyvernInventory.Infrastructure/Repos/InventoryItemRepo.cs

@@ -0,0 +1,133 @@
+using Microsoft.EntityFrameworkCore;
+using WyvernInventory.Core.Interfaces.Repos;
+using WyvernInventory.Core.Models;
+using WyvernInventory.Infrastructure.Data;
+
+namespace WyvernInventory.Infrastructure.Repos;
+
+public class InventoryItemRepo(DBContext dbContext) : IInventoryItemRepo
+{
+    private DBContext _dbContext = dbContext;
+    
+    public async Task<List<InventoryItemDto>> GetAsync(List<InventoryItemRequest>? filterList = null)
+    {
+        return _dbContext.InventoryItems
+            .Include(_ => _.AttributeValues)
+            .Include(_ => _.Type)
+            .Select(_ => new InventoryItemDto
+            {
+                Id = (int)_.Id!,
+                Name = _.Name,
+                AttributeValues = _.AttributeValues.Select(x => new InventoryAttributeValueDto
+                {
+                    Id = x.Id,
+                    AttributeDefinitionId = (int)x.AttributeDefinitionId!,
+                    AttributeDefinition = new InventoryAttributeDefinitionDto()
+                    {
+                        Id = x.AttributeDefinitionId,
+                        Name = x.AttributeDefinition.Name,
+                        DataType = x.AttributeDefinition.DataType
+                    },
+                    StringValue = x.StringValue,
+                    IntValue = x.IntValue,
+                    DecimalValue = x.DecimalValue,
+                    BoolValue = x.BoolValue,
+                    DateTimeValue = x.DateTimeValue
+                }).ToList(),
+                Type = new InventoryTypeDto()
+                {
+                    Id = _.TypeId,
+                    Name = _.Type.Name,
+                }
+            })
+            .ToList<InventoryItemDto>();
+    }
+
+    public async Task<(int created, int updated)> UpsertAsync(List<InventoryItemRequest> items)
+    {
+        var created = 0;
+        var updated = 0;
+
+        var itemsToCreate = items
+            .Where(_ => _.Id is null or 0)
+            .Select(_ => new InventoryItem
+            {
+                Name = _.Name,
+                AttributeValues = _.AttributeValues?.Select(x => new InventoryAttributeValue
+                {
+                    Id = x.Id,
+                    AttributeDefinitionId = x.AttributeDefinitionId,
+                    BoolValue = x.BoolValue,
+                    DateTimeValue = x.DateTimeValue,
+                    DecimalValue = x.DecimalValue,
+                    IntValue = x.IntValue,
+                    StringValue = x.StringValue
+                }).ToList(),
+                TypeId =  _.TypeId
+            })
+            .ToList();
+
+        var itemsToUpdate = items
+            .Where(_ => _.Id is not null and not 0)
+            .Select(_ => new InventoryItem
+            {
+                Id = _.Id,
+                Name = _.Name,
+                AttributeValues = _.AttributeValues?.Select(x => new InventoryAttributeValue
+                {
+                    Id = x.Id,
+                    AttributeDefinitionId = x.AttributeDefinitionId,
+                    BoolValue = x.BoolValue,
+                    DateTimeValue = x.DateTimeValue,
+                    DecimalValue = x.DecimalValue,
+                    IntValue = x.IntValue,
+                    StringValue = x.StringValue
+                }).ToList(),
+                TypeId =  _.TypeId
+            })
+            .ToList();
+
+        if (itemsToCreate.Count > 0)
+        {
+            _dbContext.InventoryItems.AddRange(itemsToCreate);
+            created = itemsToCreate.Count;
+        }
+
+        if (itemsToUpdate.Count > 0)
+        {
+            List<int> idList = itemsToUpdate.Select(_ =>
+            {
+                if (_.Id != null) return (int)_.Id;
+                throw new NullReferenceException();
+            }).ToList<int>();
+
+            var existingItems = _dbContext.InventoryItems.ToList()
+                .Where(_ => idList.Contains((int)_.Id!))
+                .ToDictionary(_ => (int)_.Id!);
+
+            foreach (var incoming in itemsToUpdate)
+            {
+                if (!existingItems.TryGetValue(incoming.Id!.Value, out var existing))
+                    continue;
+
+                existing.Name = incoming.Name;
+                existing.AttributeValues = incoming.AttributeValues;
+
+                updated++;
+            }
+        }
+        
+        await _dbContext.SaveChangesAsync();
+
+        return (created, updated);
+    }
+
+    public async Task<int> DeleteAsync(List<InventoryItemRequest> items)
+    {
+        var itemsToDelete = _dbContext.InventoryItems.Where(_ => items.Select(_ => _.Id).Contains(_.Id)).ToList();
+        
+        _dbContext.InventoryItems.RemoveRange(itemsToDelete);
+        
+        return await _dbContext.SaveChangesAsync();
+    }
+}

WyvernInventory.Infrastructure/Repos/InventoryTypeRepo.cs

@@ -0,0 +1,86 @@
+using Microsoft.EntityFrameworkCore;
+using WyvernInventory.Core.Interfaces.Repos;
+using WyvernInventory.Core.Models;
+using WyvernInventory.Infrastructure.Data;
+
+namespace WyvernInventory.Infrastructure.Repos;
+
+public class InventoryTypeRepo(DBContext dbContext) : IDbObjectRepo<InventoryType,  InventoryTypeDto>
+{
+    private readonly DBContext _dbContext = dbContext;
+    
+    public async Task<List<InventoryTypeDto>> GetAsync(List<InventoryType>? filterList = null)
+    {
+        return _dbContext.InventoryTypes
+            .Include(_ => _.AttributeDefinitions)
+            .Select(_ => new InventoryTypeDto
+            {
+                Id = _.Id,
+                Name = _.Name,
+                AttributeDefinitions = _.AttributeDefinitions.Select(x => new InventoryAttributeDefinitionDto
+                {
+                    Id = x.Id,
+                    Name = x.Name,
+                    DataType = x.DataType
+                }).ToList() 
+            })
+            .ToList();
+    }
+
+    public async Task<(int created, int updated)> UpsertAsync(List<InventoryType> items)
+    {
+        var created = 0;
+        var updated = 0;
+
+        var itemsToCreate = items
+            .Where(_ => _.Id is null or 0)
+            .ToList();
+
+        var itemsToUpdate = items
+            .Where(_ => _.Id is not null and not 0)
+            .ToList();
+
+        if (itemsToCreate.Count > 0)
+        {
+            _dbContext.InventoryTypes.AddRange(itemsToCreate);
+            created = itemsToCreate.Count;
+        }
+
+        if (itemsToUpdate.Count > 0)
+        {
+            List<int> idList = itemsToUpdate.Select(_ =>
+            {
+                if (_.Id != null) return (int)_.Id;
+                throw new NullReferenceException();
+            }).ToList<int>();
+
+            var existingItems = _dbContext.InventoryTypes.ToList()
+                .Where(_ => idList.Contains((int)_.Id!))
+                .ToDictionary(_ => (int)_.Id!);
+
+            foreach (var incoming in itemsToUpdate)
+            {
+                if (!existingItems.TryGetValue(incoming.Id!.Value, out var existing))
+                    continue;
+
+                existing.Name = incoming.Name;
+                existing.AttributeDefinitions = incoming.AttributeDefinitions;
+
+                updated++;
+            }
+        }
+
+        await _dbContext.SaveChangesAsync();
+
+        return (created, updated);
+    }
+
+    public async Task<int> DeleteAsync(List<InventoryType> items)
+    {
+        var itemsToDelete = _dbContext.InventoryTypes.Where(_ => items.Select(_ => _.Id).Contains(_.Id)).ToList();
+        
+        _dbContext.InventoryTypes.RemoveRange(itemsToDelete);
+        
+        return await _dbContext.SaveChangesAsync();
+    }
+}

WyvernInventory.Infrastructure/Services/GenericInventoryItemService.cs

@@ -1,17 +0,0 @@
-using WyvernInventory.Core.Interfaces.Repos;
-using WyvernInventory.Core.Interfaces.Services;
-using WyvernInventory.Core.Models;
-
-namespace WyvernInventory.Infrastructure.Services;
-
-public class GenericInventoryItemService(IDbObjectRepo<GenericInventoryItem> dbRepo)
-    : IDataObjectService<GenericInventoryItem>
-{
-    private readonly IDbObjectRepo<GenericInventoryItem> _dbRepo = dbRepo;
-
-    public async Task<List<GenericInventoryItem>> GetAsync(Predicate<GenericInventoryItem>? filter = null) => await _dbRepo.GetAsync(filter);
-
-    public async Task<(int created, int updated)> UpsertAsync(List<GenericInventoryItem> items) => await _dbRepo.UpsertAsync(items);
-
-    public async Task DeleteAsync(List<GenericInventoryItem> items) => await _dbRepo.DeleteAsync(items);
-}

WyvernInventory.Infrastructure/Services/InventoryItemService.cs

@@ -0,0 +1,16 @@
+using WyvernInventory.Core.Interfaces.Repos;
+using WyvernInventory.Core.Interfaces.Services;
+using WyvernInventory.Core.Models;
+
+namespace WyvernInventory.Infrastructure.Services;
+
+public class InventoryItemService(IInventoryItemRepo repo) : IInventoryItemService
+{
+    private IInventoryItemRepo _repo = repo;
+    
+    public async Task<List<InventoryItemDto>> GetAsync(List<InventoryItemRequest>? filter = null) => await _repo.GetAsync(filter);
+
+    public async Task<(int created, int updated)> UpsertAsync(List<InventoryItemRequest> items) => await _repo.UpsertAsync(items);
+
+    public async Task<int> DeleteAsync(List<InventoryItemRequest> items) => await _repo.DeleteAsync(items);
+}

WyvernInventory.Infrastructure/Services/InventoryTypeService.cs

@@ -0,0 +1,16 @@
+using WyvernInventory.Core.Interfaces.Repos;
+using WyvernInventory.Core.Interfaces.Services;
+using WyvernInventory.Core.Models;
+
+namespace WyvernInventory.Infrastructure.Services;
+
+public class InventoryTypeService(IDbObjectRepo<InventoryType, InventoryTypeDto> repo) : IDataObjectService<InventoryType, InventoryTypeDto>
+{
+    private IDbObjectRepo<InventoryType, InventoryTypeDto> _repo = repo;
+    
+    public async Task<List<InventoryTypeDto>> GetAsync(List<InventoryType>? filter = null) => await _repo.GetAsync(filter);
+
+    public async Task<(int created, int updated)> UpsertAsync(List<InventoryType> items) => await _repo.UpsertAsync(items);
+
+    public async Task<int> DeleteAsync(List<InventoryType> items) => await _repo.DeleteAsync(items);
+}

WyvernInventory.Infrastructure/Utils/DbUtils.cs

@@ -0,0 +1,22 @@
+using Microsoft.Extensions.Logging;
+using Serilog.Core;
+using WyvernInventory.Infrastructure.Data;
+
+namespace WyvernInventory.Infrastructure.Utils;
+
+public static class DbUtils
+{
+    public static bool CanConnectToDatabase(DBContext db, ILogger<Logger> logger)
+    {
+        if (db.Database.CanConnect())
+        {
+            return true;
+        }
+        
+        logger.LogCritical("Unable to connect to DB");
+            
+        Environment.Exit(1);
+
+        return false;
+    }
+}

WyvernInventory.Infrastructure/WyvernInventory.Infrastructure.csproj

@@ -10,4 +10,12 @@
       <ProjectReference Include="..\WyvernInventory.Core\WyvernInventory.Core.csproj" />
     </ItemGroup>
 
+    <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.7" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.7">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+    </ItemGroup>
+
 </Project>

WyvernInventory.sln

@@ -5,6 +5,7 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{CE4BF34F-D890-4DCD-BF09-5CAC9C7BD706}"
 	ProjectSection(SolutionItems) = preProject
 		compose.yaml = compose.yaml
+		.env = .env
 	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WyvernInventory.Core", "WyvernInventory.Core\WyvernInventory.Core.csproj", "{CE9A8DB9-0746-4653-BBB1-27AC278C79AE}"

compose.yaml

@@ -4,4 +4,8 @@
     build:
       context: .
       dockerfile: WyvernInventory.API/Dockerfile
-
+    ports:
+      - "5244:8080"
+    environment:
+      Database__ConnectionString: "Server=${DB_SERVER};Database=${DB_NAME};User Id=${DB_USER};Password=${DB_PASSWORD};TrustServerCertificate=True;"
+      TZ: America/Chicago