MQTT Connector XML and Maven Support

Although you can manually code a Mule app in XML, it is more efficient to use Anypoint Studio:

If you manually code a Mule runtime engine (Mule) app in XML, either from the Anypoint Studio XML editor or from a text editor, you can access the connector from your app by adding reference statements to both your XML Mule flow and the Apache Maven pom.xml file.

If you add the connector in Studio, Studio automatically populates the XML code with the connector’s namespace and schema location and it also adds a dependency to the pom.xml file.

Add a Namespace for the Connector

Paste the following code inside the <mule> tag of the header of your configuration XML:

http://www.mulesoft.org/schema/mule/mqtt3
http://www.mulesoft.org/schema/mule/mqtt3/current/mule-mqtt3.xsd

This example shows how the namespace statements are placed in the <mule> XML block:

<mule xmlns:mqtt3="http://www.mulesoft.org/schema/mule/mqtt3"
	xmlns:ee="http://www.mulesoft.org/schema/mule/ee/core"
	xmlns:http="http://www.mulesoft.org/schema/mule/http"
	xmlns:file="http://www.mulesoft.org/schema/mule/file"
	xmlns="http://www.mulesoft.org/schema/mule/core"
	xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.mulesoft.org/schema/mule/core
	http://www.mulesoft.org/schema/mule/core/current/mule.xsd
	http://www.mulesoft.org/schema/mule/file
	http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
	http://www.mulesoft.org/schema/mule/http
	http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
	http://www.mulesoft.org/schema/mule/ee/core
	http://www.mulesoft.org/schema/mule/ee/core/current/mule-ee.xsd
	http://www.mulesoft.org/schema/mule/mqtt3
	http://www.mulesoft.org/schema/mule/mqtt3/current/mule-mqtt3.xsd">

Add a POM File Dependency

The Apache Maven pom.xml file generated by Anypoint Studio contains dependencies for a Mule app. If you code a Mule app manually, include this XML snippet in your pom.xml file to enable access to this connector:

<dependency>
  <groupId>com.mulesoft.connectors</groupId>
  <artifactId>mule4-mqtt3-connector</artifactId>
  <version>x.x.x</version>
  <classifier>mule-plugin</classifier>
</dependency>

Replace x.x.x with the version that corresponds to the connector you are using.

To obtain the most up-to-date pom.xml file information:

Go to Anypoint Exchange.
In Exchange, click Login and supply your Anypoint Platform username and password.
In Exchange, search for mqtt3 connector.
Select the connector.
Click Dependency Snippets near the upper right of the screen.

Next Step

After completing your namespace and pom.xml file, you can try the examples.

MQTT Connector XML and Maven Support

Add a Namespace for the Connector

Add a POM File Dependency

Next Step

See Also