---
title: Installing the Java Module with Dropwizard
summary: null
url: >-
  https://www.fastly.com/documentation/guides/next-gen-waf/setup-and-configuration/module-agent-deployment/java-module/java-module-dropwizard
---

The Next-Gen WAF Java module can be deployed through Dropwizard.

## Download

Download the Next-Gen WAF Java module manually or access it with Maven.

### Download manually

1. Click one of the following links to download the latest version of our Java module:

   - [https://dl.security.fastly.com](https://dl.security.fastly.com/sigsci-module-java/sigsci-module-java_latest.tar.gz)
   - [https://dl.signalsciences.net](https://dl.signalsciences.net/sigsci-module-java/sigsci-module-java_latest.tar.gz)

2. Extract `sigsci-module-java_latest.tar.gz`.

3. Deploy the jars using one of the following options:
   - Copy `sigsci-module-java-{version}-shaded.jar` (an uber jar with all the dependencies bundled) to your application’s classpath (e.g., `%CATALINA_HOME%\webbapps\\WEB-INF\lib`).
   - Copy `sigsci-module-java-{version}.jar` and its dependencies in the `lib` folder to your application’s classpath (e.g., `%CATALINA_HOME%\webbapps\\WEB-INF\lib`). If you already have any of the dependency jar files in your application classpath folder (i.e., for Tomcat in the `WEB-INF\lib`) then it is not necessary to copy them, even if the version numbers are different. The logging jars are optional based on how `slf4j` is configured.

### Access with Maven

For projects using Maven for build or deployment, the latest version of Next-Gen WAF Java modules can be installed by adding XML to the project `pom.xml` file. For example:

```xml
<repositories>
   <repository>
      <id>sigsci-stable</id>
      <url>https://mvn.security.fastly.com/release/maven2</url>
   </repository>
</repositories>

<dependency>
   <groupId>com.signalsciences</groupId>
   <artifactId>sigsci-module-java</artifactId>
   <version>LATEST_MODULE_VERSION</version>
</dependency>
```

Be sure to replace `LATEST_MODULE_VERSION` with the latest release of the Java module. You can find the latest version in our version file at <https://dl.security.fastly.com/sigsci-module-java/VERSION> or <https://dl.signalsciences.net/sigsci-module-java/VERSION>.

## Install and configure

Dropwizard supports standard Java servlet filters, but you will need to register the filter class.

Additional information about Dropwizard servlet filter support can be found in the [Dropwizard documentation](https://www.dropwizard.io/en/latest/manual/core.html#servlet-filters).

The Dropwizard framework internally uses the Jetty servlet engine. The Next-Gen WAF Java module provides `servlet filters`.

## Example run method inside class extending Dropwizard Application class

```java
import com.signalsciences.servlet.filter.SigSciFilter;
@Override
public void run(final DwizExampleConfiguration configuration, final Environment environment) {
    environment.servlets().addFilter("SigSciFilter", new SigSciFilter()).addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), true, "/*");
    final HelloWorldResource resource = new HelloWorldResource(
        "%s",
        "Demo value"
    );
    environment.jersey().register(resource);
}
```

## Related content

- [About module-agent deployment](https://www.fastly.com/documentation/guides/next-gen-waf/setup-and-configuration/module-agent-deployment/about-module-agent-deployment)
- [Using an API with the Next-Gen WAF](https://www.fastly.com/documentation/guides/next-gen-waf/developer/using-an-api-with-the-next-gen-waf)