• Master (2.4.15-SNAPSHOT):

• 3.0.21-SNAPSHOT:

Maven Central

⭐⭐⭐ If you would like to contribute, please refer to guidelines and a list of open tasks.:star::star::star:

📔 For more information, please refer to the Wiki page and FAQ 📔

⚠️ If the OpenAPI/Swagger spec is obtained from an untrusted source, please make sure you've reviewed the spec before using Swagger Codegen to generate the API client, server stub or documentation as code injection may occur ⚠️

🚀 ProductHunt: https://producthunt.com/posts/swagger-codegen 🚀

📔 The eBook A Beginner's Guide to Code Generation for REST APIs is a good starting point for beginners.

NOTE: version 2.X (io.swagger) and 3.X (io.swagger.codegen.v3) have different group ids.

2.X and 3.X version lines of Swagger Codegen are available; 2.X (master branch) supports Swagger/OpenAPI version 2, while 3.X (3.0.0 branch) supports OpenAPI version 3 (and version 2 via spec conversion to version 3). Online generator of version 3.X supports both generation from Swagger/OpenAPI version 2 (by using engine + generators of 2.X) and version 3 specifications.

NOTE: this document refers to version 2.X, check here for 3.X.

Swagger Codegen 2.X supports Swagger/OpenAPI version 2.

group id: io.swagger maven central (maven plugin): https://mvnrepository.com/artifact/io.swagger/swagger-codegen-maven-plugin

dependency example:

<dependency>
    <groupId>io.swagger</groupId>
    <artifactId>swagger-codegen-maven-plugin</artifactId>
    <version>2.4.14</version>
</dependency>

Swagger Codegen 2.X supports OpenAPI version 3 (and version 2 via spec conversion to version 3) Online generator of version 3.X supports both generation from Swagger/OpenAPI version 2 (by using engine + generators of 2.X) and version 3 specifications.

group id: io.swagger.codegen.v3 maven central: https://mvnrepository.com/artifact/io.swagger.codegen.v3

dependency example:

<dependency>
    <groupId>io.swagger.codegen.v3</groupId>
    <artifactId>swagger-codegen-maven-plugin</artifactId>
    <version>3.0.20</version>
</dependency>

This is the Swagger Codegen project, which allows generation of API client libraries (SDK generation), server stubs and documentation automatically given an OpenAPI Spec. Currently, the following languages/frameworks are supported:

• API clients: ActionScript, Ada, Apex, Bash, C# (.net 2.0, 3.5 or later), C++ (cpprest, Qt5, Tizen), Clojure, Dart, Elixir, Elm, Eiffel, Erlang, Go, Groovy, Haskell (http-client, Servant), Java (Jersey1.x, Jersey2.x, OkHttp, Retrofit1.x, Retrofit2.x, Feign, RestTemplate, RESTEasy, Vertx, Google API Client Library for Java, Rest-assured), Kotlin, Lua, Node.js (ES5, ES6, AngularJS with Google Closure Compiler annotations) Objective-C, Perl, PHP, PowerShell, Python, R, Ruby, Rust (rust, rust-server), Scala (akka, http4s, swagger-async-httpclient), Swift (2.x, 3.x, 4.x, 5.x), Typescript (Angular1.x, Angular2.x, Fetch, jQuery, Node)
• Server stubs: Ada, C# (ASP.NET Core, NancyFx), C++ (Pistache, Restbed), Erlang, Go, Haskell (Servant), Java (MSF4J, Spring, Undertow, JAX-RS: CDI, CXF, Inflector, RestEasy, Play Framework, PKMST), Kotlin, PHP (Lumen, Slim, Silex, Symfony, Zend Expressive), Python (Flask), NodeJS, Ruby (Sinatra, Rails5), Rust (rust-server), Scala (Finch, Lagom, Scalatra)
• API documentation generators: HTML, Confluence Wiki
• Configuration files: Apache2
• Others: JMeter

Check out OpenAPI-Spec for additional information about the OpenAPI project.

• Versioning
• Overview
• Table of Contents
• Installation
  • Compatibility
  • Prerequisites
    • OS X Users
  • Building
  • Docker
    • Development in Docker
    • Run docker in Vagrant
    • Public pre-built Docker images
  • Homebrew
• Getting Started
• Generators
  • To generate a sample client library
  • Generating libraries from your server
  • Modifying the client library format
  • Making your own codegen modules
  • Where is Javascript???
  • Generating a client from local files
  • Customizing the generator
  • Validating your OpenAPI Spec
  • Generating dynamic html api documentation
  • Generating static html api documentation
  • To build a server stub
  • To build the codegen library
• Workflow Integration
  • Maven Integration
  • Gradle Integration
• Github Integration
• Online Generators
• Guidelines for Contribution
• Companies/Projects using Swagger Codegen
• Presentations/Videos/Tutorials/Books
• Swagger Codegen Core Team
• Swagger Codegen Technical Committee
• License

The OpenAPI Specification has undergone 3 revisions since initial creation in 2010. The Swagger Codegen project has the following compatibilities with the OpenAPI Specification:

If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 8 runtime at a minimum):

# Download current stable 2.x.x branch (Swagger and OpenAPI version 2)
wget https://repo1.maven.org/maven2/io/swagger/swagger-codegen-cli/2.4.14/swagger-codegen-cli-2.4.14.jar -O swagger-codegen-cli.jar

# Download current stable 3.x.x branch (OpenAPI version 3)
wget https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.20/swagger-codegen-cli-3.0.20.jar -O swagger-codegen-cli.jar

java -jar swagger-codegen-cli.jar help

For Windows users, you will need to install wget or you can use Invoke-WebRequest in PowerShell (3.0+), e.g. Invoke-WebRequest -OutFile swagger-codegen-cli.jar https://repo1.maven.org/maven2/io/swagger/swagger-codegen-cli/2.4.14/swagger-codegen-cli-2.4.14.jar

On a mac, it's even easier with brew:

brew install swagger-codegen

To build from source, you need the following installed and available in your $PATH:

• Java 8+

• Apache maven 3.3.3 or greater

Don't forget to install Java 8+.

Export JAVA_HOME in order to use the supported Java version:

export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
export PATH=${JAVA_HOME}/bin:$PATH

After cloning the project, you can build it from source with this command:

mvn clean package

If you don't have maven installed, you may directly use the included maven wrapper, and build with the command:

./mvnw clean package

To install, run brew install swagger-codegen

Here is an example usage:

swagger-codegen generate -i https://petstore.swagger.io/v2/swagger.json -l ruby -o /tmp/test/

You can use run-in-docker.sh to do all development. This script maps your local repository to /gen in the docker container. It also maps ~/.m2/repository to the appropriate container location.

To execute mvn package:

git clone https://github.com/swagger-api/swagger-codegen
cd swagger-codegen
./run-in-docker.sh mvn package

Build artifacts are now accessible in your working directory.

Once built, run-in-docker.sh will act as an executable for swagger-codegen-cli. To generate code, you'll need to output to a directory under /gen (e.g. /gen/out). For example:

./run-in-docker.sh help # Executes 'help' command for swagger-codegen-cli
./run-in-docker.sh langs # Executes 'langs' command for swagger-codegen-cli
./run-in-docker.sh /gen/bin/go-petstore.sh  # Builds the Go client
./run-in-docker.sh generate -i modules/swagger-codegen/src/test/resources/2_0/petstore.yaml \
    -l go -o /gen/out/go-petstore -DpackageName=petstore # generates go client, outputs locally to ./out/go-petstore

See standalone generator development

Prerequisite: install Vagrant and VirtualBox.

git clone https://github.com/swagger-api/swagger-codegen.git
cd swagger-codegen
vagrant up
vagrant ssh
cd /vagrant
./run-in-docker.sh mvn package

• https://hub.docker.com/r/swaggerapi/swagger-generator/ (official web service)
• https://hub.docker.com/r/swaggerapi/swagger-codegen-cli/ (official CLI)

The Swagger Generator image can act as a self-hosted web application and API for generating code. This container can be incorporated into a CI pipeline, and requires at least two HTTP requests and some docker orchestration to access generated code.

Example usage (note this assumes jq is installed for command line processing of JSON):

# Start container and save the container id
CID=$(docker run -d swaggerapi/swagger-generator)
# allow for startup
sleep 5
# Get the IP of the running container
GEN_IP=$(docker inspect --format '{{.NetworkSettings.IPAddress}}'  $CID)
# Execute an HTTP request and store the download link
RESULT=$(curl -X POST --header 'Content-Type: application/json' --header 'Accept: application/json' -d '{
  "swaggerUrl": "https://petstore.swagger.io/v2/swagger.json"
}' 'https://localhost:8188/api/gen/clients/javascript' | jq '.link' | tr -d '"')
# Download the generated zip and redirect to a file
curl $RESULT > result.zip
# Shutdown the swagger generator image
docker stop $CID && docker rm $CID

In the example above, result.zip will contain the generated client.

The Swagger Codegen image acts as a standalone executable. It can be used as an alternative to installing via homebrew, or for developers who are unable to install Java or upgrade the installed version.

To generate code with this image, you'll need to mount a local location as a volume.

Example:

docker run --rm -v ${PWD}:/local swaggerapi/swagger-codegen-cli generate \
    -i https://petstore.swagger.io/v2/swagger.json \
    -l go \
    -o /local/out/go

(On Windows replace ${PWD} with %CD%)

The generated code will be located under ./out/go in the current directory.

To generate a PHP client for https://petstore.swagger.io/v2/swagger.json, please run the following

git clone https://github.com/swagger-api/swagger-codegen
cd swagger-codegen
mvn clean package
java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
   -i https://petstore.swagger.io/v2/swagger.json \
   -l php \
   -o /var/tmp/php_api_client

(if you're on Windows, replace the last command with java -jar modules\swagger-codegen-cli\target\swagger-codegen-cli.jar generate -i https://petstore.swagger.io/v2/swagger.json -l php -o c:\temp\php_api_client)

You can also download the JAR (latest release) directly from maven.org

To get a list of general options available, please run java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar help generate

To get a list of PHP specified options (which can be passed to the generator with a config file via the -c option), please run java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar config-help -l php

You can build a client against the swagger sample petstore API as follows:

./bin/java-petstore.sh

(On Windows, run .\bin\windows\java-petstore.bat instead)

This will run the generator with this command:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
  -i https://petstore.swagger.io/v2/swagger.json \
  -l java \
  -o samples/client/petstore/java

with a number of options. You can get the options with the help generate command (below only shows partial results):

NAME
        swagger-codegen-cli generate - Generate code with chosen lang

SYNOPSIS
        swagger-codegen-cli generate
                [(-a <authorization> | --auth <authorization>)]
                [--additional-properties <additional properties>...]
                [--api-package <api package>] [--artifact-id <artifact id>]
                [--artifact-version <artifact version>]
                [(-c <configuration file> | --config <configuration file>)]
                [-D <system properties>...] [--git-repo-id <git repo id>]
                [--git-user-id <git user id>] [--group-id <group id>]
                [--http-user-agent <http user agent>]
                (-i <spec file> | --input-spec <spec file>)
                [--ignore-file-override <ignore file override location>]
                [--import-mappings <import mappings>...]
                [--instantiation-types <instantiation types>...]
                [--invoker-package <invoker package>]
                (-l <language> | --lang <language>)
                [--language-specific-primitives <language specific primitives>...]
                [--library <library>] [--model-name-prefix <model name prefix>]
                [--model-name-suffix <model name suffix>]
                [--model-package <model package>]
                [(-o <output directory> | --output <output directory>)]
                [--release-note <release note>] [--remove-operation-id-prefix]
                [--reserved-words-mappings <reserved word mappings>...]
                [(-s | --skip-overwrite)]
                [(-t <template directory> | --template-dir <template directory>)]
                [--type-mappings <type mappings>...] [(-v | --verbose)]

OPTIONS
        -a <authorization>, --auth <authorization>
            adds authorization headers when fetching the swagger definitions
            remotely. Pass in a URL-encoded string of name:header with a comma
            separating multiple values

...... (results omitted)

        -v, --verbose
            verbose mode

You can then compile and run the client, as well as unit tests against it:

cd samples/client/petstore/java
mvn package

Other languages have petstore samples, too:

./bin/android-petstore.sh
./bin/java-petstore.sh
./bin/objc-petstore.sh

It's just as easy--just use the -i flag to point to either a server or file.

Don't like the default swagger client syntax? Want a different language supported? No problem! Swagger Codegen processes mustache templates with the jmustache engine. You can modify our templates or make your own.

You can look at modules/swagger-codegen/src/main/resources/${your-language} for examples. To make your own templates, create your own files and use the -t flag to specify your template folder. It actually is that easy.

If you're starting a project with a new language and don't see what you need, Swagger Codegen can help you create a project to generate your own libraries:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar meta \
  -o output/myLibrary -n myClientCodegen -p com.my.company.codegen

This will write, in the folder output/myLibrary, all the files you need to get started, including a `README.md. Once modified and compiled, you can load your library with the codegen and generate clients with your own, custom-rolled logic.

You would then compile your library in the output/myLibrary folder with mvn package and execute the codegen like such:

java -cp output/myLibrary/target/myClientCodegen-swagger-codegen-1.0.0.jar:modules/swagger-codegen-cli/target/swagger-codegen-cli.jar io.swagger.codegen.SwaggerCodegen

For Windows users, you will need to use ; instead of : in the classpath, e.g.

java -cp output/myLibrary/target/myClientCodegen-swagger-codegen-1.0.0.jar;modules/swagger-codegen-cli/target/swagger-codegen-cli.jar io.swagger.codegen.SwaggerCodegen

Note the myClientCodegen is an option now, and you can use the usual arguments for generating your library:

java -cp output/myLibrary/target/myClientCodegen-swagger-codegen-1.0.0.jar:modules/swagger-codegen-cli/target/swagger-codegen-cli.jar \
  io.swagger.codegen.SwaggerCodegen generate -l myClientCodegen\
  -i https://petstore.swagger.io/v2/swagger.json \
  -o myClient

See also standalone generator development

See our javascript library--it's completely dynamic and doesn't require static code generation. There is a third-party component called swagger-js-codegen that can generate angularjs or nodejs source code from a OpenAPI Specification.

❗ On Dec 7th 2015, a Javascript API client generator has been added by @jfiala.

If you don't want to call your server, you can save the OpenAPI Spec files into a directory and pass an argument to the code generator like this:

-i ./modules/swagger-codegen/src/test/resources/2_0/petstore.json

Great for creating libraries on your ci server, from the Swagger Editor... or while coding on an airplane.

You may not want to generate all models in your project. Likewise you may want just one or two apis to be written. If that's the case, you can use system properties to control the output:

The default is generate everything supported by the specific library. Once you enable a feature, it will restrict the contents generated:

# generate only models
java -Dmodels {opts}

# generate only apis
java -Dapis {opts}

# generate only supporting files
java -DsupportingFiles

# generate models and supporting files
java -Dmodels -DsupportingFiles

To control the specific files being generated, you can pass a CSV list of what you want:

# generate the User and Pet models only
-Dmodels=User,Pet

# generate the User model and the supportingFile `StringUtil.java`:
-Dmodels=User -DsupportingFiles=StringUtil.java

To control generation of docs and tests for api and models, pass false to the option. For api, these options are -DapiTests=false and -DapiDocs=false. For models, -DmodelTests=false and -DmodelDocs=false. These options default to true and don't limit the generation of the feature options listed above (like -Dapi):

# generate only models (with tests and documentation)
java -Dmodels {opts}

# generate only models (with tests but no documentation)
java -Dmodels -DmodelDocs=false {opts}

# generate only User and Pet models (no tests and no documentation)
java -Dmodels=User,Pet -DmodelTests=false {opts}

# generate only apis (without tests)
java -Dapis -DapiTests=false {opts}

# generate only apis (modelTests option is ignored)
java -Dapis -DmodelTests=false {opts}

When using selective generation, only the templates needed for the specific generation will be used.

Swagger Codegen supports a .swagger-codegen-ignore file, similar to .gitignore or .dockerignore you're probably already familiar with.

The ignore file allows for better control over overwriting existing files than the --skip-overwrite flag. With the ignore file, you can specify individual files or directories can be ignored. This can be useful, for example if you only want a subset of the generated code.

Examples:

# Swagger Codegen Ignore
# Lines beginning with a # are comments

# This should match build.sh located anywhere.
build.sh

# Matches build.sh in the root
/build.sh

# Exclude all recursively
docs/**

# Explicitly allow files excluded by other rules
!docs/UserApi.md

# Recursively exclude directories named Api
# You can't negate files below this directory.
src/**/Api/

# When this file is nested under /Api (excluded above),
# this rule is ignored because parent directory is excluded by previous rule.
!src/**/PetApiTests.cs

# Exclude a single, nested file explicitly
src/IO.Swagger.Test/Model/AnimalFarmTests.cs

The .swagger-codegen-ignore file must exist in the root of the output directory.

Upon first code generation, you may also pass the CLI option --ignore-file-override=/path/to/ignore_file for greater control over generated outputs. Note that this is a complete override, and will override the .swagger-codegen-ignore file in an output directory when regenerating code.

Editor support for .swagger-codegen-ignore files is available in IntelliJ via the .ignore plugin.

There are different aspects of customizing the code generator beyond just creating or modifying templates. Each language has a supporting configuration file to handle different type mappings, etc:

$ ls -1 modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/
AbstractJavaJAXRSServerCodegen.java
AbstractTypeScriptClientCodegen.java
... (results omitted)
TypeScriptAngularClientCodegen.java
TypeScriptNodeClientCodegen.java

Each of these files creates reasonable defaults so you can get running quickly. But if you want to configure package names, prefixes, model folders, etc. you can use a json config file to pass the values.

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
  -i https://petstore.swagger.io/v2/swagger.json \
  -l java \
  -o samples/client/petstore/java \
  -c path/to/config.json

and config.json contains the following as an example:

{
  "apiPackage" : "petstore"
}

Supported config options can be different per language. Running config-help -l {lang} will show available options. These options are applied via configuration file (e.g. config.json) or by passing them with java -jar swagger-codegen-cli.jar -D{optionName}={optionValue}. (If -D{optionName} does not work, please open a ticket and we'll look into it)

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar config-help -l java

Output

CONFIG OPTIONS
	modelPackage
	    package for generated models

	apiPackage
	    package for generated api classes
...... (results omitted)
	library
	    library template (sub-template) to use:
	    jersey1 - HTTP client: Jersey client 1.18. JSON processing: Jackson 2.4.2
	    jersey2 - HTTP client: Jersey client 2.6
	    feign - HTTP client: Netflix Feign 8.1.1.  JSON processing: Jackson 2.6.3
	    okhttp-gson (default) - HTTP client: OkHttp 2.4.0. JSON processing: Gson 2.3.1
	    retrofit - HTTP client: OkHttp 2.4.0. JSON processing: Gson 2.3.1 (Retrofit 1.9.0)
        retrofit2 - HTTP client: OkHttp 2.5.0. JSON processing: Gson 2.4 (Retrofit 2.0.0-beta2)
        google-api-client - HTTP client: google-api-client 1.23.0. JSON processing: Jackson 2.8.9
        rest-assured - HTTP client: rest-assured : 3.1.0. JSON processing: Gson 2.6.1. Only for Java8

Your config file for Java can look like

{
  "groupId":"com.my.company",
  "artifactId":"MyClient",
  "artifactVersion":"1.2.0",
  "library":"feign"
}

For all the unspecified options default values will be used.

Another way to override default options is to extend the config class for the specific language. To change, for example, the prefix for the Objective-C generated files, simply subclass the ObjcClientCodegen.java:

package com.mycompany.swagger.codegen;

import io.swagger.codegen.languages.*;

public class MyObjcCodegen extends ObjcClientCodegen {
    static {
        PREFIX = "HELO";
    }
}

and specify the classname when running the generator:

-l com.mycompany.swagger.codegen.MyObjcCodegen

Your subclass will now be loaded and overrides the PREFIX value in the superclass.

Sometimes you don't want a model generated. In this case, you can simply specify an import mapping to tell the codegen what not to create. When doing this, every location that references a specific model will refer back to your classes. Note, this may not apply to all languages...

To specify an import mapping, use the --import-mappings argument and specify the model-to-import logic as such:

--import-mappings Pet=my.models.MyPet

Or for multiple mappings:

--import-mappings Pet=my.models.MyPet,Order=my.models.MyOrder

or

--import-mappings Pet=my.models.MyPet --import-mappings Order=my.models.MyOrder

You have options. The easiest is to use our online validator which not only will let you validate your spec, but with the debug flag, you can see what's wrong with your spec. For example:

https://online.swagger.io/validator/debug?url=https://petstore.swagger.io/v2/swagger.json

To do so, just use the -l dynamic-html flag when reading a spec file. This creates HTML documentation that is available as a single-page application with AJAX. To view the documentation:

cd samples/dynamic-html/
npm install
node .

Which launches a node.js server so the AJAX calls have a place to go.

To do so, just use the -l html flag when reading a spec file. This creates a single, simple HTML file with embedded css so you can ship it as an email attachment, or load it from your filesystem:

cd samples/html/
open index.html

Please refer to https://github.com/swagger-api/swagger-codegen/wiki/Server-stub-generator-HOWTO for more information.

This will create the Swagger Codegen library from source.

mvn package

Note! The templates are included in the library generated. If you want to modify the templates, you'll need to either repackage the library OR specify a path to your scripts

You can use the swagger-codegen-maven-plugin for integrating with your workflow, and generating any codegen target.

Gradle Swagger Generator Plugin is available for generating source code and API document.

To push the auto-generated SDK to GitHub, we provide git_push.sh to streamline the process. For example:

1. Create a new repository in GitHub (Ref: https://help.github.com/articles/creating-a-new-repository/)

2. Generate the SDK

 java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate \
 -i modules/swagger-codegen/src/test/resources/2_0/petstore.json -l perl \
 --git-user-id "swaggerapi" \
 --git-repo-id "petstore-perl" \
 --release-note "Github integration demo" \
 -o /var/tmp/perl/petstore

3. Push the SDK to GitHub

cd /var/tmp/perl/petstore
/bin/sh ./git_push.sh

One can also generate API client or server using the online generators (https://generator.swagger.io)

For example, to generate Ruby API client, simply send the following HTTP request using curl:

curl -X POST -H "content-type:application/json" -d '{"swaggerUrl":"https://petstore.swagger.io/v2/swagger.json"}' https://generator.swagger.io/api/gen/clients/ruby

Then you will receive a JSON response with the URL to download the zipped code.

To customize the SDK, you can POST to https://generator.swagger.io/gen/clients/{language} with the following HTTP body:

{
  "options": {},
  "swaggerUrl": "https://petstore.swagger.io/v2/swagger.json"
}

in which the options for a language can be obtained by submitting a GET request to https://generator.swagger.io/api/gen/clients/{language}:

For example, curl https://generator.swagger.io/api/gen/clients/python returns

{
  "packageName":{
    "opt":"packageName",
    "description":"python package name (convention: snake_case).",
    "type":"string",
    "default":"swagger_client"
  },
  "packageVersion":{
    "opt":"packageVersion",
    "description":"python package version.",
    "type":"string",
    "default":"1.0.0"
  },
  "sortParamsByRequiredFlag":{
    "opt":"sortParamsByRequiredFlag",
    "description":"Sort method arguments to place required parameters before optional parameters.",
    "type":"boolean",
    "default":"true"
  }
}

To set package name to pet_store, the HTTP body of the request is as follows:

{
  "options": {
    "packageName": "pet_store"
  },
  "swaggerUrl": "https://petstore.swagger.io/v2/swagger.json"
}

and here is the curl command:

curl -H "Content-type: application/json" -X POST -d '{"options": {"packageName": "pet_store"},"swaggerUrl": "https://petstore.swagger.io/v2/swagger.json"}' https://generator.swagger.io/api/gen/clients/python

Instead of using swaggerUrl with an URL to the OpenAPI/Swagger spec, one can include the spec in the JSON payload with spec, e.g.

{
  "options": {},
  "spec": {
    "swagger": "2.0",
    "info": {
      "version": "1.0.0",
      "title": "Test API"
    },
    ...
  }
}

Please refer to this page

Here are some companies/projects using Swagger Codegen in production. To add your company/project to the list, please visit README.md and click on the icon to edit the page.

• Acando
• Accengage
• Accruent
• Activehours
• Actonica
• Acunetix
• Adaptant
• Atlassian
• Autodesk
• Avenida Compras S.A.
• AYLIEN
• Balance Internet
• beemo
• bitly
• BeezUP
• Box
• Bufferfly Network
• Cachet Financial
• carpolo
• Carus
• Cisco
• CloudBoost
• Cloudsmith
• Conplement
• Cummins
• Cupix
• DBBest Technologies
• DecentFoX
• DocRaptor
• DocuSign
• Elastic
• Ergon
• Dell EMC
• eureka
• everystory.us
• Expected Behavior
• fashionTrade
• Fastly
• FINRA
• Flat
• Finder
• Fitwell
• FH Münster - University of Applied Sciences
• FormAPI
• Fotition
• Gear Zero Network
• General Electric
• Genesys - PureCloud
• Germin8
• GigaSpaces
• GMO Pepabo
• goTransverse
• GraphHopper
• Gravitate Solutions
• HashData
• Hewlett Packard Enterprise
• High Technologies Center
• Hootsuite
• Huawei Cloud
• Husbanken
• IBM
• IMS Health
• Individual Standard IVS
• INSPIDE
• Intent HQ
• Kabuku
• Kurio
• Kuroi
• Kuary
• Kubernetes
• LANDR Audio
• Lascaux
• Leanix
• Leica Geosystems AG
• LiveAgent
• LXL Tech
• Lyft
• MailMojo
• Metaswitch
• Mindera
• ModuleQ
• Mporium
• Neverfail
• NexCap
• Norwegian Air Shuttle
• NTT DATA
• nViso
• Okiok
• Onedata
• Open International Systems
• OrderCloud.io
• OSDN
• PagerDuty
• PagerTree
• Pepipost
• Peatio Tech
• Plexxi
• Pixoneye
• PostAffiliatePro
• PracticeBird
• Prill Tecnologia
• Prokarma
• QAdept
• QuantiModo
• QuickBlox
• Rapid7
• Red Hat
• Reload! A/S
• REstore
• REST United
• Revault Sàrl
• Riffyn
• Royal Bank of Canada (RBC)
• Saritasa
• SAS
• SCOOP Software GmbH
• SessionM
• Shine Solutions
• Simpfony
• Skurt
• Slamby
• SmartRecruiters
• snapCX
• SPINEN
• Sponsoo
• SRC
• Stardog Ventures
• Stingray
• StyleRecipe
• Svenska Spel AB
• Switch Database
• TaskData
• ThirdWatch.ai
• ThoughtWorks
• Tpay
• Trexle
• Upwork
• uShip
• Variograma
• VMware
• Viavi Solutions Inc.
• W.UP
• Wealthfront
• Webever GmbH
• WEXO A/S
• XSky
• Yelp
• Zalando
• ZEEF.com
• zooplus
• Trifork

• 2011/08/31 - Introducing Swagger by Tony Tam
• 2014/05/22 - Swagger APIs for Humans and Robots by Tony Tam at Gluecon
• 2014/11/11 - Genie 2.0: Second Wish Granted! by Tom Gianos and Amit Sharma @ Netflix Big Data Platform Team
• 2015/07/28 - Enriching RESTful Services with Swagger by Philipp Hauer
• 2015/11/11 - Generate client stubs & document your REST-API using Swagger & Spring by Johannes Fiala @ Devoxx Belgium 2015
• 2015/12/03 - こんなに簡単! Swagger Codegenのカスタマイズ by Quramy
• 2016/01/12 - Generate client side code using Swagger Codegen by RNAVAGAMUWA
• 2016/01/15 - How to end manual REST-API client coding by Johannes Fiala @ dotJS 2015
• 2016/04/27 - Automated REST API Development by Yos Riady
• 2016/05/29 - Generating Java Spring-MVC code from Swagger Spec by @icha024
• 2016/07/22 - Building Microservices? Here is what you should know by Sumit Maingi
• 2016/08/23 - Generating Dreamfactory Client SDKs based on Swagger API Definitions by Phil Schuler
• 2016/09/28 - 1 UNBELIEVABLE TRICK TO CREATE AN EASY TO CONSUME API IN .NET by Piotr Stapp
• 2016/10/10 - Using swagger-codegen with Marketo by Kenny Elkington
• 2016/10/12 - Designing a Swagger API by Kevin Sookocheff
• 2016/11/05 - How to generate a REST Application by Johannes Fiala @ DevFest Vienna 2016
• 2016/11/10 - Building an AEM API clients ecosystem by Cliffano Subagio, Michael Diender, Stephen Shim from Shine Solutions @ Adobe Marketing Cloud Community Expo (AMCCE)
• 2016/11/18 - How to generate a REST CXF3 application from Swagger-Contract by Johannes Fiala @ ApacheConEU 2016
• 2016/11/25 - Swagger Codegen for Swift3 and NodeJS by David Norman
• 2016/12/08 - Building an API with Swagger
• 2016/12/08 - Generate client side code using Swagger Codegen by theFerkel
• 2017/01/16 - Zero to API in 4 minutes by Bradley A. Thornton
• 2017/02/09 - 「Swaggerを利用した新規サービス開発」というタイトルで登壇して来ました by recotech
• 2017/03/03 - Swagger Codegen の使い方の簡単な説明です by wagyu298
• 2017/03/24 - Using Open API Specification To Put Lyft SDK Support in the Fast Lane by Val Polouchkine
• 2017/04/13 - Automatically Generating your API Client with Swagger and Swagger Codegen by Jesse Collis @ Melbourne Cocoaheads
• 2017/04/27 - Swagger Codegen のPHP実装があまりにアレだったので、ライブラリ自作して公開してみた by imunew
• 2017/05/17 - Diseño de APIs con OpenAPI by Pedro J. Molina @ JSDayES 2017
• 2017/05/22 - Presentation of the Vert.x-Swagger project by @phiz71
• 2017/05/22 - Automatically generating your API from a swagger file using gradle by Deniz Turan
• 2017/06/21 - Swagger Presentation - Warsaw Ruby Users Group by @rafalpetryka
• 2017/06/29 - Making SDKs: the bespoke, the hopeful and the generated by Tristan Sokol (Square) at DevXcon 2017
• 2017/07/11 - OpenAPI development with Python by 和田拓朗 at EuroPython 2017
• 2017/07/29 - How Square makes its SDKs by Tristan Sokol (Square)
• 2017/07/31 - How to Generate a Deployable REST CXF3 Application from a Swagger-Contract by Johannes Fiala @ Voxxed Days Vienna
• 2017/08/11 - Swagger Codegen 自动生成Retrofit 代码 by 徐磊
• 2017/08/24 - APIs First by roykachouh (Square)
• 2017/08/31 - Bringing Jenkins Remote Access API To The Masses by Cliffano Subagio from Shine Solutions @ Jenkins World 2017
• 2017/09/08 - Swagger Codegen で自動生成したクライアントSDKを使う(iOS編) by kfurue
• 2017/09/09 - Swagger Codegen で自動生成したクライアントSDKを使う(RxSwift 編) by kfurue
• 2017/09/09 - OpenAPIを利用したPythonWebアプリケーション開発 by 和田拓朗 at PyCon JP 2017
• 2017/09/21 - Generating an Elastic Cloud Enterprise Client by Greg Marzouka (Elastic)
• 2017/09/26 - How to Use IoT Application Enablement Api Hub JSON Descriptor in Postman and How to Generate Client Code by Radu Simen (SAP)
• 2017/09/28 - Swagger Codegenで APIクライアントgem 自動生成 #m3kt by Jumpei Takiyasu
• 2017/09/30 - Swaggerのテンプレートを魔改造した話 #渋谷java by Hidetake Iwata (NTT DATA Corporation)
• 2017/10/04 - Enterprise-friendly Java client for Microsoft Machine Learning Server by Pratik Palnitkar (Microsoft)
• 2017/10/08 - Generating a REST Ada client with OpenAPI and Swagger Codegen by Stephane Carrez
• 2017/11/08 - A Beginner's Guide to Code Generation for REST APIs(eBook) by William Cheng
• 2017/11/18 - 10年前のレガシーシステムをサーバーサイドKotlinでフルリニューアルしている話 #jjug_ccc #ccc_g2 by Hidenori Maehara
• 2017/11/21 - swagger-codegen から眺める Swift4 by Daiki Matsudate
• 2017/12/07 - API-driven development with OpenAPI and Swagger, Part 2 by Matthew Tyson
• 2017/12/29 - REST APIs代码生成指南(eBook) by William Cheng, Xin Meng
• 2017/12/21 - Using Protocol Buffer to Generate SDK at Hootsuite by Joy Zhang
• 2018/01/11 - Swagger 工具箱介绍及代码自动生成示例 by qct
• 2018/01/19 - Generowanie kodu usług REST - przewodnik dla początkujących(eBook) by William Cheng, Tomasz Prus, Bartek Kryza
• 2018/02/03 - Writing REST APIs with OpenAPI and Swagger Ada by Stephane Carrez at FOSDEM 2018
• 2018/02/28 - OpenAPI–An eBay Perspective by Shekhar Banerjee (eBay)
• 2018/03/16 - REST APIのためのコード生成入門 by William Cheng, 中野暁人, 和田拓朗

Swagger Codegen core team members are contributors who have been making significant contributions (review issues, fix bugs, make enhancements, etc) to the project on a regular basis.

Here is a list of template creators:

• API Clients:
  • Ada: @stcarrez
  • Akka-Scala: @cchafer
  • Apex: @asnelling
  • Bash: @bkryza
  • C++ REST: @Danielku15
  • C# (.NET 2.0): @who
  • C# (.NET Standard 1.3 ): @Gronsak
  • C# (.NET 4.5 refactored): @jimschubert
  • Clojure: @xhh
  • Dart: @yissachar
  • Dart (refactored in 2.4.0): @joernahrens
  • Elixir: @niku
  • Elm: @trenneman
  • Eiffel: @jvelilla
  • Erlang: @tsloughter
  • Groovy: @victorgit
  • Go: @wing328
  • Go (rewritten in 2.3.0): @antihax
  • Haskell (http-client): @jonschoning
  • Java (Feign): @davidkiss
  • Java (Retrofit): @0legg
  • Java (Retrofit2): @emilianobonassi
  • Java (Jersey2): @xhh
  • Java (okhttp-gson): @xhh
  • Java (RestTemplate): @nbruno
  • Java (RESTEasy): @gayathrigs
  • Java (Vertx): @lopesmcc
  • Java (Google APIs Client Library): @charlescapps
  • Java (Rest-assured): @viclovsky
  • Javascript/NodeJS: @jfiala
  • Javascript (Closure-annotated Angular) @achew22
  • JMeter: @davidkiss
  • Kotlin: @jimschubert
  • Lua: @daurnimator
  • Perl: @wing328
  • PHP (Guzzle): @baartosz
  • PowerShell: @beatcracker
  • R: @ramnov
  • Rust: @farcaller
  • Rust (rust-server): @metaswitch
  • Scala (scalaz & http4s): @tbrown1979
  • Swift: @tkqubo
  • Swift 3: @hexelon
  • Swift 4: @ehyche
  • TypeScript (Node): @mhardorf
  • TypeScript (Angular1): @mhardorf
  • TypeScript (Fetch): @leonyu
  • TypeScript (Angular2): @roni-frantchi
  • TypeScript (jQuery): @bherila
• Server Stubs
  • Ada: @stcarrez
  • C# ASP.NET5: @jimschubert
  • C# NancyFX: @mstefaniuk
  • C++ Pistache: @sebymiano
  • C++ Restbed: @stkrwork
  • Erlang Server: @galaxie
  • Go Server: @guohuang
  • Haskell Servant: @algas
  • Java MSF4J: @sanjeewa-malalgoda
  • Java Spring Boot: @diyfr
  • Java Undertow: @stevehu
  • Java Play Framework: @JFCote
  • Java PKMST: @anshu2185 @sanshuman @rkumar-pk @ninodpillai
  • JAX-RS RestEasy: @chameleon82
  • JAX-RS CXF: @hiveship
  • JAX-RS CXF (CDI): @nickcmaynard
  • JAX-RS RestEasy (JBoss EAP): @jfiala
  • Kotlin: @jimschubert
  • PHP Lumen: @abcsun
  • PHP Slim: @jfastnacht
  • PHP Symfony: @ksm2
  • PHP Zend Expressive (with Path Handler): @Articus
  • Ruby on Rails 5: @zlx
  • Rust (rust-server): @metaswitch
  • Scala Finch: @jimschubert
  • Scala Lagom: @gmkumar2005
• Documentation
  • HTML Doc 2: @jhitchcock
  • Confluence Wiki: @jhitchcock
• Configuration
  • Apache2: @stkrwork

Here are the requirements to become a core team member:

• rank within top 50 in https://github.com/swagger-api/swagger-codegen/graphs/contributors
  • to contribute, here are some good starting points
• regular contributions to the project
  • about 3 hours per week
  • for contribution, it can be addressing issues, reviewing PRs submitted by others, submitting PR to fix bugs or make enhancements, etc

To become a Template Creator, simply submit a PR for new API client (e.g. Rust, Elixir) or server stub (e.g. Ruby Grape) generator.

Members of the Swagger Codegen technical committee shoulder the following responsibilities:

• Provides guidance and direction to other users
• Reviews pull requests and issues
• Improves the generator by making enhancements, fixing bugs or updating documentations
• Sets the technical direction of the generator

Who is eligible? Those who want to join must have at least 3 PRs merged into a generator. (Exceptions can be granted to template creators or contributors who have made a lot of code changes with less than 3 merged PRs)

Please disclose any security-related issues or vulnerabilities by emailing [email protected], instead of using the public issue tracker.

The Swagger Codegen project is intended as a benefit for users of the Swagger / Open API Specification. The project itself has the License as specified. In addition, please understand the following points:

• The templates included with this project are subject to the License.
• Generated code is intentionally not subject to the parent project license

When code is generated from this project, it shall be considered AS IS and owned by the user of the software. There are no warranties--expressed or implied--for generated code. You can do what you wish with it, and once generated, the code is your responsibility and subject to the licensing terms that you deem appropriate.

Copyright 2019 SmartBear Software

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at [apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.