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DelphiMVCFramework is the most popular open source project for web applications in the Delphi world, and one of the fastest ways to put a Delphi codebase on the web. This is its official guide, written by the person who created and maintains it.

The book is built around one example rather than a tour of features. You start with the project the IDE wizard generates, and by the last chapter the same Municipal Library API authenticates users, signs them in through an external identity provider, streams over WebSockets, documents itself with OpenAPI and runs behind TLS. Every chapter adds one thing to a system you already understand.

What changed since the first edition. The first edition covered 3.2.1-carbon. This one targets 3.5.0-silicon, and the framework did not stand still: functional actions, the validation framework, WebSocket support, dependency injection, the repository pattern, HTMX and TemplatePro views, and in 3.5.0 itself a pluggable server architecture with built-in HTTPS and a streaming JSON serializer. Fifteen of the thirty chapters are new, and the rest were rewritten rather than patched. There is a full chapter on MVCActiveRecord in depth, one on OpenID Connect against a real Keycloak, and one on the new Minimal API.

Every example is a real project. Nothing here was written by inspection: all 46 example projects compile against 3.5.0-silicon and every endpoint printed in the book was run and its output captured. The code is on GitHub at github.com/danieleteti/dmvcframeworktheofficialguideexamples, one folder per chapter, Apache 2.0.

Who it is for. If you have never built a web service, the early chapters explain HTTP, REST and what a controller actually does; no web experience is assumed. If you already ship Delphi services, the second half is the reference you have been missing: engines, TLS, deployment on Windows and Linux, logging and metrics, the RESTful client, and a chapter of things the framework can do that almost nobody knows about.

About this pre-release. All thirty chapters are written, verified and included. The book targets 3.5.0-silicon while that version is still a release candidate, so a revised edition follows once 3.5.0 is frozen, and buying now gets you every future revision at no extra cost. The front matter says plainly what is finished and what is not.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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