DMVCFramework 3.3.0-fluorine - What's New

DMVCFramework 3.3.0-fluorine

Release Date: April 21, 2023

This release adds Delphi 11.3 Alexandria support, Records in Swagger documentation, and Prometheus monitoring integration.

Major New Features

Delphi 11.3 Alexandria Support

Full support for Delphi 11.3 Alexandria with updated packages.

Records in Swagger Parameters and Responses

Use Delphi records directly in Swagger documentation:

type
  TAddressRecord = record
    Street: string;
    City: string;
    ZipCode: string;
  end;

[MVCPath('/customers')]
TCustomerController = class(TMVCController)
public
  [MVCPath('/($ID)/address')]
  [MVCHTTPMethods([httpGET])]
  [MVCSwagResponse(200, TAddressRecord)]  // Record type in Swagger
  function GetAddress(const ID: Integer): TAddressRecord;
end;

Prometheus Middleware

Monitor your API with Prometheus metrics:

Engine.AddMiddleware(TMVCPrometheusMiddleware.Create);

Exposes metrics at /metrics endpoint:

Request count by path and method
Request duration histogram
Error rates

New Sample: prometheus

Profiler Threshold Logging

Log only requests exceeding a threshold:

Profiler.LogsOnlyIfOverThreshold := True;
Profiler.Threshold := 100; // milliseconds

Other Improvements

Wizard Improvements

Commented code showing how to use context events
Better documentation in generated code

Bug Fixes

Fixed wrong data type for NullableTGUID (#651)
Fixed custom session sample
Fixed JWT unit test

Updated Dependencies

React sample updated to functional components
Security updates for npm dependencies