=== 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`):

[source,xml,subs="+attributes"]
----
<dependency>
  <groupId>io.vertx</groupId>
  <artifactId>vertx-config-spring-config-server</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):

[source,groovy,subs="+attributes"]
----
compile 'io.vertx:vertx-config:${maven.version}'
compile 'io.vertx:vertx-config-spring-config-server:${maven.version}'
----

==== Configuring the store

Once added to your classpath or dependencies, you need to configure the
{@link io.vertx.config.ConfigRetriever} to use this store:

[source, $lang]
----
{@link examples.ConfigSpringExamples#example1(io.vertx.core.Vertx)}
----


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
