### Yaml Configuration Format

The Yaml Configuration Format extends the Vert.x Configuration Retriever and provides the support for the Yaml Configuration Format format.

#### Using the Yaml Configuration Format

To use the Yaml 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-yaml</artifactId>
     <version>${maven.version}</version>
    </dependency>
    <dependency>
     <groupId>io.vertx</groupId>
     <artifactId>vertx-config</artifactId>
     <version>${maven.version}</version>
    </dependency>

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

    compile 'io.vertx:vertx-config:${maven.version}'
    compile 'io.vertx:vertx-config-yaml:${maven.version}'

#### Configuring the store to use YAML

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

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

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

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