Bits of .NET

Handle complex business states (Success, Error, Loading) without messy if-else or null checks.

public record Result;
public record Success(string Data) : Result;
public record Failure(int Code) : Result;

string message = result switch {
    Success s => $"Fetched: {s.Data}",
    Failure f => $"Error code: {f.Code}",
    _ => "Unknown State"
};