### 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>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-redis:3.4.2'

#### Configuring the store

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

    def store = [
      type:"redis",
      config:[
        host:"localhost",
        port:6379,
        key:"my-configuration"
      ]
    ]

    def retriever = ConfigRetriever.create(vertx, [
      stores:[
        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.