### Consul Configuration Store

The Consul Configuration Store extends the Vert.x Configuration Retriever and provides the way to retrieve configuration from a Consul.

#### Using the Consul Configuration Store

To use the Consul Configuration Store, 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-consul</artifactId>
     <version>4.0.0.Beta2</version>
    </dependency>
    <dependency>
     <groupId>io.vertx</groupId>
     <artifactId>vertx-config</artifactId>
     <version>4.0.0.Beta2</version>
    </dependency>

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

    compile 'io.vertx:vertx-config:4.0.0.Beta2'
    compile 'io.vertx:vertx-config-consul:4.0.0.Beta2'

#### Configuring the store

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

    ConfigStoreOptions store = new ConfigStoreOptions()
        .setType("consul")
        .setConfig(new JsonObject()
          .put("host", "localhost")
          .put("port", 8500)
          .put("prefix", "foo")
        );

    ConfigRetriever retriever = ConfigRetriever.create(vertx,
        new ConfigRetrieverOptions().addStore(store));

The store configuration is used to create an instance of `ConsulClient`. Check the documentation of the Vert.x Consul Client for further details. And this is the parameters specific to the Consul Configuration Store:

`prefix`

  A prefix that will not be taken into account when building the configuration tree. Defaults to empty.

`delimiter`

  Symbol that used to split keys in the Consul storage to obtain levels in the configuration tree. Defaults to "/".