# Swagger generated server
## Overview
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 `JAX-RS`.
### Prerequisites
You need the following installed and available in your $PATH:
Maven 3
### 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:
```
sbt assembly
```
You can now generate a server from any valid[**](https://github.com/wordnik/swagger-codegen/blob/master/README.md#validating-your-swagger-spec) swagger spec:
```
./bin/runscala.sh samples/server-generator/java-jaxrs/JavaJaxRSServerGenerator.scala http://petstore.swagger.wordnik.com/api/api-docs.json special-key
```
After executing this script, you will have an output directory with the server-generated files:
```
$ cd samples/server-generator/java-jaxrs/output
$ find .
./pom.xml
./README.md
./src
./src/main
./src/main/java
./src/main/java/com
./src/main/java/com/wordnik
./src/main/java/com/wordnik/api
./src/main/java/com/wordnik/api/ApiException.java
./src/main/java/com/wordnik/api/ApiResponse.java
./src/main/java/com/wordnik/api/JacksonJsonProvider.java
./src/main/java/com/wordnik/api/NotFoundException.java
./src/main/java/com/wordnik/api/PetApi.java
./src/main/java/com/wordnik/api/StoreApi.java
./src/main/java/com/wordnik/api/UserApi.java
./src/main/java/com/wordnik/client
./src/main/java/com/wordnik/client/model
./src/main/java/com/wordnik/client/model/Category.java
./src/main/java/com/wordnik/client/model/Order.java
./src/main/java/com/wordnik/client/model/Pet.java
./src/main/java/com/wordnik/client/model/Tag.java
./src/main/java/com/wordnik/client/model/User.java
./src/main/webapp
./src/main/webapp/WEB-INF
./src/main/webapp/WEB-INF/web.xml
```
To run the server, cd to the `samples/server-generator/java-jaxrs/output` folder and run:
```
mvn jetty:run
```
You can now load the swagger-ui against `http://localhost:8002/api/api-docs.json`. Of course this isn't a fully
runnable server! You have to add the logic in the **/api/*.java 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/java-jaxrs/JavaJaxRSServerGenerator.scala` file.
Don't like the templates? Don't worry, we're not offended! They're [mustache](http://mustache.github.com/) 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/java-jaxrs/templates/api.mustache)
- Generator for your models: [model.mustache](https://github.com/wordnik/swagger-codegen/blob/master/samples/server-generator/java-jaxrs/templates/model.mustache)
- Your web.xml: [web.mustache](https://github.com/wordnik/swagger-codegen/blob/master/samples/server-generator/java-jaxrs/templates/web.mustache)
Sound easy? It is!