initial commit

Controllers/TodoItemsController.cs

@@ -0,0 +1,74 @@
+using Demo001.Data;
+using Demo001.Models;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace Demo001.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+public class TodoItemsController : ControllerBase
+{
+    private readonly AppDbContext _context;
+
+    public TodoItemsController(AppDbContext context)
+    {
+        _context = context;
+    }
+
+    [HttpGet]
+    public async Task<ActionResult<IEnumerable<TodoItem>>> GetTodoItems()
+    {
+        return await _context.TodoItems.ToListAsync();
+    }
+
+    [HttpGet("{id}")]
+    public async Task<ActionResult<TodoItem>> GetTodoItem(int id)
+    {
+        var item = await _context.TodoItems.FindAsync(id);
+        return item is null ? NotFound() : item;
+    }
+
+    [HttpPost]
+    public async Task<ActionResult<TodoItem>> CreateTodoItem(TodoItem item)
+    {
+        _context.TodoItems.Add(item);
+        await _context.SaveChangesAsync();
+
+        return CreatedAtAction(nameof(GetTodoItem), new { id = item.Id }, item);
+    }
+
+    [HttpPut("{id}")]
+    public async Task<IActionResult> UpdateTodoItem(int id, TodoItem item)
+    {
+        if (id != item.Id)
+        {
+            return BadRequest();
+        }
+
+        if (!await _context.TodoItems.AnyAsync(x => x.Id == id))
+        {
+            return NotFound();
+        }
+
+        _context.Entry(item).State = EntityState.Modified;
+        await _context.SaveChangesAsync();
+
+        return NoContent();
+    }
+
+    [HttpDelete("{id}")]
+    public async Task<IActionResult> DeleteTodoItem(int id)
+    {
+        var item = await _context.TodoItems.FindAsync(id);
+        if (item is null)
+        {
+            return NotFound();
+        }
+
+        _context.TodoItems.Remove(item);
+        await _context.SaveChangesAsync();
+
+        return NoContent();
+    }
+}