### Redis Configuration Store

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

#### Using the Redis Configuration Store

To use the Redis 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-redis</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:${maven.version}'
    compile 'io.vertx:vertx-config-redis:${maven.version}'

#### Configuring the store

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

    var store = ConfigStoreOptions()
      .setType("redis")
      .setConfig(new io.vertx.core.json.JsonObject().put("host", "localhost").put("port", 6379).put("key", "my-configuration"))

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

The store configuration is used to create an instance of `RedisClient`. check the documentation of the Vert.x Redis Client for further details.

In addition, you can set the `key` instructing the store in which field the configuration is stored. `configuration` is used by default.

The created Redis client retrieves the configuration using the `HGETALL` configuration.