### Hocon Configuration Format

The Hocon Configuration Format extends the Vert.x Configuration Retriever and provides the support for the HOCON(https://github.com/typesafehub/config/blob/master/HOCON.md) format.

It supports includes, json, properties, macros…​

#### Using the Hocon Configuration Format

To use the Hocon Configuration Format, add the following dependency to the dependencies section of your build descriptor:

- Maven (in your `pom.xml`):

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-config-hocon-scala_2.12</artifactId>
      <version>3.4.2</version>
    </dependency>
    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-config</artifactId>
      <version>3.4.2</version>
    </dependency>

- Gradle (in your `build.gradle` file):

    compile 'io.vertx:vertx-config:3.4.2'
    compile 'io.vertx:vertx-config-hocon-scala_2.12:3.4.2'

#### Configuring the store to use HOCON

Once added to your classpath or dependencies, you need to configure the `ConfigRetriever` to use this format:

    var store = ConfigStoreOptions()
      .setType("file")
      .setFormat("hocon")
      .setConfig(new io.vertx.core.json.JsonObject().put("path", "my-config.conf"))

    var retriever = ConfigRetriever.create(vertx, ConfigRetrieverOptions()
      .setStores(Set(store))
    )

You just need to set `format` to `hocon`.