Never Return Your EF Entities From an API
Returning EF Core entities directly from your endpoints leaks internal structure, creates circular references, and exposes sensitive data. Use response records instead.
best-practice
4 posts with the tag “best-practice”
Guard Clauses Done Right
Manual null checks are noisy and inconsistent. .NET provides built-in guard methods that are cleaner, faster, and throw the right exceptions every time.
[GeneratedRegex] Is Not Optional — Compiled Regex Is Dead
new Regex(…, RegexOptions.Compiled) allocates at startup and hides patterns from the JIT. Source-generated regex is faster, safer, and enforced at build time.
Stop Using DateTime.Now — Inject TimeProvider Instead
DateTime.Now makes your code untestable and timezone-fragile. Here is how to replace it with TimeProvider and IClock for deterministic, test-friendly time.