another step for constructing base project

server/src/API/Baya.WebFramework/Routing/SnakeCaseParameterTransformer.cs

@@ -0,0 +1,17 @@
+using System.Text.RegularExpressions;
+using Microsoft.AspNetCore.Routing;
+
+namespace Baya.WebFramework.Routing;
+
+public sealed class SnakeCaseParameterTransformer : IOutboundParameterTransformer
+{
+    private static readonly Regex _upperAfterLower = new(@"([a-z0-9])([A-Z])", RegexOptions.Compiled);
+    private static readonly Regex _consecutiveUpper = new(@"([A-Z]+)([A-Z][a-z])", RegexOptions.Compiled);
+
+    public string TransformOutbound(object value)
+    {
+        if (value is null) return null;
+        var s = _consecutiveUpper.Replace(value.ToString()!, "$1_$2");
+        return _upperAfterLower.Replace(s, "$1_$2").ToLowerInvariant();
+    }
+}