Code Generators

Design Principles

• Minimal dependencies — Client libraries use native framework dependencies where possible. When not, we use the most standard options available.
• Readable output — Every generator starts as a hand-written client that we then automate. The goal is generated code you'd be proud to commit.
• Single file — Download one fully contained, fully functional file. Drop it into your project or package it as a library.

S Scala

• Play 2.9 / Scala 3 Client — Latest Play Framework client with Scala 3 support
• Http4s 0.23 Client — Functional HTTP client for the Typelevel ecosystem
• Anorm 2.9 / Scala 3 Parsers — Database parsers for Play Anorm
• Scala Models — Standalone model and enum generation
• Scala Mock Client — Mock clients for testing

K Kotlin & Android

• Android Kotlin RxJava2 Client — Kotlin models with Retrofit 2 + RxJava2
• Android Java Client — Java models with Retrofit 2
• Android RxJava2 Client — Java models with Retrofit 2 + RxJava2

J Java & Spring

• Java WebClient (Spring 6) — Spring 6 WebClient with Jakarta validation BETA
• Lombok Models (Spring 6) — Jakarta JPA models with Lombok BETA
• JPA Repositories (Spring 6) — Spring Data JPA repositories with Jakarta
• Java Models — Standalone Java model generation
• AWS Lambda POJOs — Java POJO models for AWS Lambda

T TypeScript & JavaScript

• TypeScript Declarations — Type definitions for TypeScript projects
• TypeScript SDK — Full TypeScript client SDK
• JavaScript (Isomorphic) — ES6 client for Node and browser
• JSDoc 3 Types — JSDoc type definitions

G GraphQL

• GraphQL Apollo Server — Schema + Apollo Server adapters (example)
• GraphQL Schema — Standalone schema generation
• GraphQL for Java — Schema for use with graphql-java

+ More Languages

• Go Client — Native net/http client for Go
• Dart / Flutter Client — Client for Dart and Flutter apps
• Elm Client (V2) — Type-safe Elm client generation
• C# Client — .NET client generation
• Ruby Client — Ruby HTTP client

⚙ Infrastructure & Schema

• OpenAPI 3.0 — Export to OpenAPI 3.0 spec
• Swagger JSON — Export to Swagger 2.0
• JSON Schema — JSON Schema from service definition
• PostgreSQL DDL — Database schema generation
• CSV Export — API info in CSV format (endpoints, models)
• AWS AppSync CloudFormation — Deploy AppSync backend from your API
• AWS Lambda (Node.js) — Lambda service scaffolding

Scala / Play Framework Docs

• Play routes file generation
• Play union type handling

Resources

• Browse all generators — Full list with status and details
• Generator attributes — Configure generator behavior per-service
• Generator source code — Build your own or contribute
• Examples repository — Working examples for multiple generators