Using the swagger-codegen, you can not only generate clients but servers as well! The same spec can be used to drive your development both ways. This is an example of generating a server for node.js.

Prerequisites

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

- sbt 0.12 (http://www.scala-sbt.org/)

- Scala 2.9.1 [available here](http://www.scala-lang.org)

You also need to add both the sbt and scala binary to your PATH.

Generating a server

You first need to build the swagger-codegen project--this is done by running this command at the root of the swagger-codegen project:

mvn package

You can now generate a server from any valid** swagger spec:

./bin/runscala.sh samples/server-generator/scalatra/ScalatraServerGenerator.scala http://petstore.swagger.wordnik.com/api/resources.json special-key

After executing this script, you will have an output directory with the server-generated files:

$ cd samples/server-generator/scalatra/output
$ find  -type f
./project/build.properties
./project/plugins.sbt
./README.md
./src/main/scala/apis/PetApi.scala
./src/main/scala/apis/StoreApi.scala
./src/main/scala/apis/UserApi.scala
./src/main/scala/com/wordnik/client/model/Category.scala
./src/main/scala/com/wordnik/client/model/Order.scala
./src/main/scala/com/wordnik/client/model/Pet.scala
./src/main/scala/com/wordnik/client/model/Tag.scala
./src/main/scala/com/wordnik/client/model/User.scala
./src/main/scala/JsonUtil.scala
./src/main/scala/ServletApp.scala

To run the server, cd to the samples/server-generator/scalatra/output folder and run:

sbt run

You can now load the swagger-ui against http://localhost:8002/api/resources.json. Of course this isn't a fully runnable server! You have to add the logic in the apis/*.scala files. But that's the easy part.

Making it your own

Running the sample is easy, but how about making your own server? Easy! Just modify the samples/server-generator/scalatra/ScalatraServerGenerator.scala file.

Don't like the templates? Don't worry, we're not offended! They're mustache templates and are easy to modify. Take a look at the sample templates here:

- Generator for your api classes: [api.mustache](https://github.com/wordnik/swagger-codegen/blob/master/samples/server-generator/scalatra/templates/api.mustache)

- Generator for your models: [model.mustache](https://github.com/wordnik/swagger-codegen/blob/master/samples/server-generator/scalatra/templates/model.mustache)

- The main class to run your server: [ServletApp.mustache](https://github.com/wordnik/swagger-codegen/blob/master/samples/server-generator/scalatra/templates/ServletApp.mustache)

Sound easy? It is!