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Apitomy Codegen

Welcome to Apitomy Codegen — an open source API design code generator that produces high-quality Java code from OpenAPI specifications.

What is Apitomy Codegen?

Apitomy Codegen reads an OpenAPI 3.x specification and generates:

  • JAX-RS interfaces — fully annotated resource interfaces ready for you to implement
  • Data model beans — Jackson-annotated Java classes from your schema definitions
  • Quarkus-optimized projects — optional full project scaffolding with Dockerfiles, config, and Maven wrapper

You write the OpenAPI spec and the business logic. Apitomy Codegen handles the boilerplate.

Key Features

  • OpenAPI 3.x Support — full support for modern OpenAPI specifications
  • Interface-Based Design — generated interfaces define the API contract; you implement the behavior
  • Maven Plugin — integrates code generation into your build lifecycle
  • Highly Configurable — 14+ project settings, 10+ OpenAPI extensions for fine-grained control
  • Reactive Support — optional CompletionStage<> wrapping for async endpoints
  • Bean Validation — optional JSR-303 annotations from OpenAPI constraints
  • Production Ready — battle-tested in enterprise environments

Project Structure

  • core/ — core code generation engine (can also be used as a library)
  • maven-plugin/ — Maven plugin for build integration
  • maven-plugin-tests/ — integration tests for the Maven plugin

License

This project is licensed under the Apache License 2.0. See the LICENSE file for details.

Community

Part of the Apitomy project. Licensed under the Apache License 2.0.