Added InventarController, IInventarRepo and Item

Controllers/InventarController.cs

@@ -0,0 +1,69 @@
+using System.Collections.Generic;
+using BuecherwurmAPI.Models;
+using Microsoft.AspNetCore.Mvc;
+using System.Linq;
+//using Microsoft.EntityFrameworkCore;
+using BuecherwurmAPI.Data;
+
+namespace BuecherwurmAPI.Controllers
+{
+    [Route("inventar")]
+    [ApiController]
+    public class InventarController : ControllerBase
+    {
+        private readonly IInventarRepo _repository;
+
+        public InventarController(IInventarRepo repository)
+        {
+            _repository = repository;
+        }
+        // GET Inventar
+        [HttpGet]
+        public ActionResult<IEnumerable<Item>> GetAllItems()
+        {
+            var items = _repository.GetAllItems();
+            return Ok(items);
+        }
+
+        // POST Inventar
+        [HttpPost]
+        public ActionResult<IEnumerable<Item>> NewItem(Item item)
+        {
+            return Ok(new Item
+            {
+                Id = item.Id,
+                BookId = item.BookId,
+            });
+        }
+
+
+        // GET Inventar/{id}
+        [HttpGet("{id}", Name = "GetItemByID")]
+        public ActionResult<IEnumerable<Item>> GetItemByID(int id)
+        {
+            var item = _repository.GetItemById(id);
+            if (item != null)
+            {
+                return Ok(item);
+            }
+            return NoContent();
+
+        }
+
+
+        // DELETE inventory/{id}
+        [HttpDelete("id")]
+        public ActionResult<IEnumerable<Item>> DeleteItem(int id)
+        {
+            var item = _repository.GetItemById(id);
+            if (item == null)
+            {
+                return NotFound();
+            }
+            _repository.DeleteItem(item);
+            return NoContent();
+        }
+
+    }
+
+}

Data/IInventarRepo.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using BuecherwurmAPI.Models;
+
+namespace BuecherwurmAPI.Data
+{
+    public interface IInventarRepo
+    {
+        IEnumerable<Item> GetAllItems();
+        Item GetItemById(int id);
+        void DeleteItem(Item item);
+    }
+}

Models/Item.cs

@@ -0,0 +1,14 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace BuecherwurmAPI.Models
+{
+    public class Item
+    {
+        [Key]
+        [Required]
+        public int Id { get; set; }
+        [Required]
+        public int BookId { get; set; }
+    }
+    
+}

obj/Debug/netcoreapp3.1/BuecherwurmAPI.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-86b668f90c71d8d1cdd800a49275d51b363153fe
+cd0d5b7f5bc2ee5d9b23e69f3956b03d0178fe54