Author: Sneha Veeranki
Anypoint Connectors are reusable extensions to the Mule runtime engine (Mule) that enable you to integrate a Mule app with third-party APIs, databases, and standard integration protocols. Connectors abstract the technical details involved with connecting to a target system. All connectivity in Mule 4 is provided through connectors.
Here, we’re have developed a basic and simple mule 4 connector which gives an output “Hello World”. We’ll learn,
- What are the prerequisites and how to set-up the system?
- How to create an SDK for Connector development in mule 4.
- How to set-up the basic configurations
- How to run the maven command in cmd to create the basic architecture for the connector.
- How to add the dependency to the pom file.
- Where to find the connector and how to use it.
- Java Development Kit 8 (JDK 8)
- Apache Maven, version 3.3.9 or higher
- Intellij IDEA
- Set the system variables:
> Open the cmd and run a maven command –
> Running this command provides the basic structure to develop the connector.
- Can set the name, groupId, artifactId, version and main packagefor the extension or leave it for default
> A project is created named “mule-basic-extension”, open the project in the IntelliJ
> There is a dependency that should add to the mule application pom.xml.
> To run this project navigate tofile > settings > Build, Execution, Deployment > Compiler> Java compiler and Add -parametersin the Additional command line parameterssection.
> In Terminal run mvn clean install
> Once the build is successful, copy the dependency from README.md
How to Use the Connector in Anypoint Studio:
> Create a new mule project in Anypoint studio.
> Open the pom.xml, add the dependency within the dependencies and save the file.
> In project explorer can find the libraries:
> Navigate to the mule configuration file, drag an HTTP listener and configure.
> Find the Basic connector in the Mule Palette, drag Say hi and place it after the listener and enter a “Hello World!!!”.
> Save the application and run it, once it is deployed.
> Open the Postman or ARC and send a request to http://localhost:8081/sayHi