Some small improvements for clarity.

* PostModel -> PostDto
* 404 test case
* README

README.md

@@ -8,14 +8,14 @@ This exercise is designed to test your skills in C# and .NET.
 * Minimal ASP.NET Core Web API
 * Entity Framework Core
 * SQLite3 Database (simplified for portability)
-* HttpClient for downstream REST API calls
+* `HttpClient` for downstream REST API calls
 * ???
 
 ## Prerequisites
 
 * Latest [.NET 8 SDK](https://dotnet.microsoft.com/en-us/download/dotnet/8.0)
-* Visual Studio Code
-* Docker Desktop and docker compose plugin
+* Visual Studio Code with C# Dev Kit extension
+  * Also works with Visual Studio 2022 and JetBrains Rider.
 * **Disable Copilot completions** (that would make it too easy...)
 * Be ready for sharing your screen in Zoom
 * Launch settings have been configured to run and debug the web application

service/JsonPlaceholderClient.cs

@@ -16,7 +16,7 @@ public class JsonPlaceholderClient
         // TODO: Configure the client as needed.
     }
 
-    public async Task<PostModel?> GetPostByIdAsync(int id, CancellationToken ct = default)
+    public async Task<PostDto?> GetPostByIdAsync(int id, CancellationToken ct = default)
     {
         // TODO: Implement the logic to call the external service and retrieve the post by ID.
         throw new NotImplementedException("This method will be implemented in Phase 1.");

service/PostDto.cs

@@ -3,7 +3,7 @@ using System;
 namespace service;
 
 [Serializable]
-public class PostModel
+public class PostDto
 {
     public int Id { get; set; }
     public int UserId { get; set; }

service/Program.cs

@@ -35,7 +35,7 @@ app.UseRequestTimeouts();
 app.MapGet("/posts/{id}", async (AppDbContext dbContext, JsonPlaceholderClient client, int id) =>
 {
     // TODO: (Phase 1) Implement the logic to retrieve a post by ID and store it in the database.
-    // Consider some minimal error handling in case the post is not found (e.g. Id > 100).
+    // Consider some minimal error handling in case the post is not found (e.g. when testing with an Id > 100).
     return Results.Ok();
 })
 .WithRequestTimeout(TimeSpan.FromSeconds(29))