some changes

barkmanAPI/Program.cs

@@ -1,5 +1,5 @@
+using Microsoft.EntityFrameworkCore;
 using Microsoft.OpenApi.Models;
-using BarkMan.DB;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -23,10 +23,20 @@ if (app.Environment.IsDevelopment())
 
 app.MapGet("/", () => "Hello World!");
 
-app.MapGet("/inventory/{id}", (int id) => InventoryDb.GetInventory(id));
-app.MapGet("/inventory", () => InventoryDb.GetInventory());
-app.MapPost("/inventory", (InventoryItem item) => InventoryDb.CreateInventoryItem(item));
-app.MapPut("/inventory", (InventoryItem item) => InventoryDb.UpdateItem(item));
-app.MapDelete("/inventory/{id}", (int id) => InventoryDb.RemoveItem(id));
+app.MapGet("/inventory", async (InventoryContext dbContext) =>
+{
+    var inventoryItems = await dbContext.Set<InventoryContext>().ToListAsync();
+    return Results.Ok(inventoryItems);
+});
+
+app.MapPost("/inventory", async (InventoryContext dbContext, InventoryContext newItem) =>
+{
+    dbContext.Add(newItem);
+    await dbContext.SaveChangesAsync();
+    return Results.Created($"/inventory/{newItem.Id}", newItem);
+});
+//app.MapGet("/inventory/{id}", (int id) => InventoryDb.GetInventory(id));
+//app.MapPut("/inventory", (InventoryItem item) => InventoryDb.UpdateItem(item));
+//app.MapDelete("/inventory/{id}", (int id) => InventoryDb.RemoveItem(id));
 
 app.Run();