= Vert.x AMQP Bridge

This component provides AMQP 1.0 producer and consumer support via a bridging layer implementing the Vert.x event bus
MessageProducer and MessageConsumer APIs over the top of link:https://github.com/vert-x3/vertx-proton/[vertx-proton].

WARNING: this module has the tech preview status, this means the API can change between versions.

== Using Vert.x AMQP Bridge

To use Vert.x AMQP Bridge, 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-amqp-bridge</artifactId>
  <version>3.3.0.CR1</version>
</dependency>
----

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

[source,groovy,subs="+attributes"]
----
compile io.vertx:vertx-amqp-bridge:3.3.0.CR1
----

=== Sending a Message

Here is a simple example of creating a `link:../../apidocs/io/vertx/core/eventbus/MessageProducer.html[MessageProducer]` and sending a message with it.
First, an `link:../../apidocs/io/vertx/amqpbridge/AmqpBridge.html[AmqpBridge]` is created and started to establish the underlying AMQP connection,
then when this is complete the producer is created and a message sent using it. You can also optionally supply
`link:../../apidocs/io/vertx/amqpbridge/AmqpBridgeOptions.html[AmqpBridgeOptions]` when creating the bridge in order to configure various options, such
as SSL connections.

[source,java]
----
AmqpBridge bridge = AmqpBridge.create(vertx);
// Start the bridge, then use the event loop thread to process things thereafter.
bridge.start("localhost", 5672, res -> {
  // Set up a producer using the bridge, send a message with it.
  MessageProducer<JsonObject> producer = bridge.createProducer("myAmqpAddress");

  JsonObject amqpMsgPayload = new JsonObject();
  amqpMsgPayload.put("body", "myStringContent");

  producer.send(amqpMsgPayload);
});
----

=== Receiving a Message

Here is a simple example of creating a `link:../../apidocs/io/vertx/core/eventbus/MessageConsumer.html[MessageConsumer]` and registering a handler with it.
First, an `link:../../apidocs/io/vertx/amqpbridge/AmqpBridge.html[AmqpBridge]` is created and started to establish the underlying AMQP connection,
then when this is complete the consumer is created and a handler registered that prints the body of incoming AMQP
messages.

[source,java]
----
AmqpBridge bridge = AmqpBridge.create(vertx);
// Start the bridge, then use the event loop thread to process things thereafter.
bridge.start("localhost", 5672, res -> {
  // Set up a consumer using the bridge, register a handler for it.
  MessageConsumer<JsonObject> consumer = bridge.createConsumer("myAmqpAddress");
  consumer.handler(vertxMsg -> {
    JsonObject amqpMsgPayload = vertxMsg.body();
    Object amqpBody = amqpMsgPayload.getValue("body");

    System.out.println("Received a message with body: " + amqpBody);
  });
});
----