Added the files.

Models/TodoContext.cs

@@ -0,0 +1,13 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace TodoApi.Models;
+
+public class TodoContext : DbContext
+{
+    public TodoContext(DbContextOptions<TodoContext> options)
+        : base(options)
+    {
+    }
+
+    public DbSet<TodoItem> TodoItems { get; set; } = null!;
+}

Models/TodoItem.cs

@@ -0,0 +1,12 @@
+namespace TodoApi.Models;
+
+public class TodoItem
+{
+    public string? Author { get; set; }
+    public string? AuthorId { get; set; }
+    public long Id { get; set; }
+    public string? Likes { get; set; }
+    public string? Popularity { get; set; }
+    public string? Reads { get; set; }
+    public string[]? Tags { get; set; }
+}