OpenAPI4s 🔗

Generate idiomatic Scala 3 models, validation types, HTTP server routes and clients from OpenAPI or JSON Schema documents.

Use OpenAPI4s with the CLI, sbt plugin, Mill plugin or Deder plugin

• Start with the quickstart
• Solve a specific integration task
• Look up CLI and backend details
• Understand when to choose OpenAPI4s

Site map 🔗

• Tutorials

  • Quickstart

• How-Tos

  • Generate models from JSON Schema
  • Generate an http4s API with Iron
  • Regenerate an evolving API

• Reference

  • CLI
  • Backends and dependencies
  • Limitations

• Explanation

  • Why OpenAPI4s?