OpenAPI-CodeGen

Node.js-based codegen for OpenAPI documents. This project was initially a 24-hour hackathon. The local model adaptor code is entirely original and has been reverse-engineered from the existing documentation and template usage.

Work in progress

Supports OpenAPI 3.0.x natively, and Swagger/OpenAPI 1.2 and 2.0 by internal conversion. Node.js LTS versions are supported.

Usage

Installing

npm i -g openapi-codegen

clone the repository, and
npm i

npx -p openapi-codegen cg ...

CLI

cg [options] {[path]configName} {openapi-definition}

Options:
  --help           Show help                                           [boolean]
  --version        Show version number                                 [boolean]
  --filter         Filter term to use with --list                       [string]
  --list           List available templates for provider (og or sc)     [string]
  -d, --debug      Turn on debugging information in the model          [boolean]
  -f, --flat       Do not include config-name in output directory structure
                                                                       [boolean]
  -l, --lint       Lint input definition                               [boolean]
  -o, --output     Specify output directory         [string] [default: "./out/"]
  -s, --stools     Use swagger-tools to validate OpenAPI 2.0 definitions
                                                                       [boolean]
  -t, --templates  Specify templates directory                          [string]
  -v, --verbose    Increase verbosity                                  [boolean]
  -z, --zip        Create a .zip file instead of individual files      [boolean]

e.g.

node cg --verbose nodejs defs/generator.yaml

In this case, the generated code will be written to the .out/nodejs directory.

You can also load the OpenAPI definition from a URL.

API

const renderer = require('openapi-codegen');
// load a config and a definition
renderer.main(definition,config,configName);

Templates

The local templates were taken directly from swagger-codegen. This project is also licensed under Apache-2.0 for this reason. Generated code is explicitly covered by the Unlicense. Code to downconvert OpenAPI 3.0 definitions is taken from Angular-Swagger-UI and is MIT licensed.

You can also use the latest online templates from two providers: og (openapi-generator) and sc (swagger-codegen). The --list and --filter options allow you to see which templates are available. Note that using the online templates involves sending your API definition to a remote server.

Contributors

See here for a partial list of template contributors.

Status of the template configurations

The local templates with a status have a working (if not necessarily tested) configuration in the configs directory. Contributions are welcomed from the community of new and updated configurations and template updates.

Click here to expand...

Template	Type	Status	Authors (TODO)	Config Maintainer
_common	meta	contains Apache-2.0 and Unlicense licenses
Ada	client	Untested
akka-scala
android
apache2	configuration	needs work
apex
aspnetcore
bash	client	Syntax ok, needs testing	@bkryza	@MikeRalphson
clojure	client	Untested
codegen	meta	Demo only		@MikeRalphson
confluenceWikiDocs	documentation	Tested with Docker server
cpprest
csharp
csharp-dotnet2	client	Untested
dart
debug	meta	used for dumping the model state	@Mermade	@MikeRalphson
Eiffel
elixir
erlang-client	client	Untested
erlang-server	server
finch
flash
flaskConnexion	server	Needs testing
go	client	Builds, needs testing
go-server	server	Builds and runs
Groovy	?	untested
haskell-http-client	client
haskell-servant	server	Untested
htmlDocs	documentation	Appears to work
htmlDocs2	documentation	Appears to work, no console errors logged
Java
JavaInflector
JavaJaxRS
JavaPlayFramework
Javascript	client	Untested
Javascript-Closure-Angular	client	Untested
JavaSpring
JavaVertXServer
JMeter	meta	Untested
kotlin-client
lua	client	Compiles OK
lumen
MSF4J
nancyfx
nodejs	server	tested ✅	@jfiala	@MikeRalphson
objc
openapi	meta	outputs the input definition (in OpenAPI 3.0.x form) ✅	@Mermade	@MikeRalphson
perl
php
php-silex	?	untested
php-symfony
pistache-server
powershell
python	client	needs testing		@mpnordland
qt5cpp
r
rails5
restbed	server	Untested
ruby
rust
rust-server
scala
scalatra
scalaz	client	Untested
sinatra	server	Syntax checks OK
slim	server	Untested
swagger	meta	outputs the input definition (in original form if OpenAPI 2.0) ✅
swagger-static	documentation	tested template modified to include partials
swift
swift3
swift4
tizen
typescript-angular
typescript-angularjs
typescript-axios	client	tested	jaredpalmer
typescript-aurelia
typescript-fetch	client	compiles with tsc ok
typescript-jquery
typescript-node	client	compiles with tsc ok
undertow
validator	meta	uses swagger2openapi's OpenAPI 3.0 validator internally ✅
ze-ph