### Spring Config Server Store

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

#### Using the Spring Config Server Store

To use the Spring Config Server 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-spring-config-server</artifactId>
     <version>3.6.0.CR2</version>
    </dependency>
    <dependency>
     <groupId>io.vertx</groupId>
     <artifactId>vertx-config</artifactId>
     <version>3.6.0.CR2</version>
    </dependency>

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

    compile 'io.vertx:vertx-config:3.6.0.CR2'
    compile 'io.vertx:vertx-config-spring-config-server:3.6.0.CR2'

#### Configuring the store

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

    var store = ConfigStoreOptions(
      type = "spring-config-server",
      config = json {
        obj("url" to "http://localhost:8888/foo/development")
      })

    var retriever = ConfigRetriever.create(vertx, ConfigRetrieverOptions(
      stores = listOf(store)))

Configurable attributes are:

- `url` - the `url` to retrieve the configuration (mandatory), supports two type of formats:

  - `/{application}/{environment}` which produces response with separated propertySources

  - `/{application}-{environment}.json` which produces response as JSON with unique fields and resolved Spring placeholders

- `timeout` - the timeout (in milliseconds) to retrieve the configuration, 3000 by default

- `user` - the `user` (no authentication by default)

- `password` - the `password`

- `httpClientConfiguration` - the configuration of the underlying HTTP client