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swagger-codegen contains a template-driven engine to generate client code in different languages by parsing your Swagger Resource Declaration.
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README.md

Swagger Code Generator

Overview

This is the swagger codegen project, which allows generation of client libraries automatically from a Swagger-compliant server. You can find out more about both the spec and the framework at http://swagger.wordnik.com. For more information about Wordnik's APIs, please visit http://developer.wordnik.com.

Prerequisites

You need the following installed and available in your $PATH:

You also need to add the scala binary to your PATH.

To generate a sample client library

You can build a client against Wordnik's petstore API as follows:

./bin/scala-petstore.sh

This will run the script in samples/client/petstore/ScalaPetstoreCodegen.scala and create the client. You can then compile and run the client, as well as unit tests against it:

cd samples/client/petstore/scala
mvn package

Other languages have petstore samples, too:

./bin/flash-petstore.sh
./bin/java-petstore.sh
./bin/objc-petstore.sh
./bin/php-petstore.sh
./bin/python-petstore.sh
./bin/python3-petstore.sh
./bin/ruby-petstore.sh

Generating libraries from your server

It's just as easy--you can either run the default generators:

./bin/runscala.sh com.wordnik.swagger.codegen.BasicScalaGenerator http://petstore.swagger.wordnik.com/api/resources.json special-key

Replace Scala with Flash, Java, Objc, PHP, Python, Python3, Ruby.

You will probably want to override some of the defaults--like packages, etc. For doing this, just create a scala script with the overrides you want. Follow ScalaPetstoreCodegen as an example:

For example, create src/main/scala/MyCodegen.scala with these contents:

import com.wordnik.swagger.codegen.BasicScalaGenerator

object MyCodegen extends BasicScalaGenerator {
  def main(args: Array[String]) = generateClient(args)

  // location of templates
  override def templateDir = "scala"

  // where to write generated code
  override def destinationDir = "client/scala/src/main/scala"

  // api invoker package
  override def invokerPackage = "com.myapi.client"

  // package for models
  override def modelPackage = Some("com.myapi.client.model")

  // package for api classes
  override def apiPackage = Some("com.myapi.client.api")

  // supporting classes
  override def supportingFiles = List(
    ("apiInvoker.mustache", destinationDir + java.io.File.separator + packageName.replaceAll("\\.", java.io.File.separator), "ApiInvoker.scala"),
    ("pom.mustache", destinationDir, "pom.xml")
  )
}

Now you can generate your client like this:

./bin/runscala.sh src/main/scala/MyCodegen.scala http://my.api.com/resources.json super-secret-key

w00t! Thanks to the scala interpretor, you didn't even need to recompile.

Modifying the client library format

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

You can look at src/main/resources/${your-language} for examples. To make your own templates, create your own files and override the templateDir in your script to point to the right place. It actually is that easy.

Where is Javascript???

See our javascript library--it's completely dynamic and doesn't require static code generation.

Generating a client from flat files (i.e. no remote server calls)

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

-DfileMap=/path/to/files

Or for example:

./bin/java-petstore-filemap.sh

Which simple passes -DfileMap=src/test/resources/petstore as an argument. Great for creating libraries on your ci server... or while coding on an airplane.

Validating your swagger spec

You can use the validation tool to see that your server is creating a proper spec file. If you want to learn more about the spec file and format, please see swagger-core. This tool will read the server and generate a report of any violations of the spec. If there are violations, the client codegen and ui may not work correctly.

To validate an api and write output to ./swagger-errors.html:

./bin/validate.sh http://petstore.swagger.wordnik.com/api/resources.json "" ./swagger-errors.html

To build the codegen library

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 modify your codegen script to use a file path!

To build a server stub

You can also use the codegen to generate a server for a couple different frameworks. Take a look here:

License

Copyright 2012 Wordnik, Inc.

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

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.

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