Custom MuleSoft connector using Java SDK

1. 08/05/2021
Faridabad MuleSoft Meetup Group
Custom Connector Using Mule 4 SDK

2. 2
Introduction - Organizers

3. Introduction - Speaker
3
Technical Expertise:
• 10 years of Technical Experience
• 6+ years of Experience in the Integration Domain
• Certified MuleSoft Integration Developer and
Architect
• Mule Meetup Speaker
• Coimbatore Mule Meetup Leader
Ashish Pardhi
Pramati Technologies
Principal Engineer

4. CHEERS..!!
We have prizes to give away!
3 Winners a special prize is ready
4
A SHOW OF HANDS:
New Members With Us.!!

5. FARIDABAD INDIA CHAPTER
CUSTOM CONNECTOR DEVELOPMENT USING JAVA +
XML SDK IN MULESOFT

6. ● What is Connector?
● What is Mule 4 SDK?
○ JAVA SDK
○ XML SDK
● Differences with Mule 3 Devkit
● A high-level overview of Java-based SDK
● Best Practices
● References for existing Connectors
● Implementation Overview
○ Live Demo
Agenda
6

7. ● Bring target system in Mule Runtime.
● Mechanism to extend Mule 4 Runtime by creating new modules.
● Mulesoft has a range of inbuilt connector.
○ SFTP, FTP, JDBC etc
○ SAAS systems like Salesforce
○ Google and AWS services, and many more.
● Modules with custom functionality, such as the Validations Module.
● Mechanism types
○ Java Mule SDK : advanced, feature-rich
○ XML SDK : provides only outbound operations and doesn’t support recursive calls
What is Connector?
7

8. ● The Mule SDK allows Mule developers to create modules
that can be used just like any other module in Mule (e.g.,
HTTP module, Java module, Validation module).
● Modules enable reuse, offload complexity and deliver
consistent behavior.
● Mule Extensions API
○ This API is a well-defined contract for how modules can
interact with the Mule Runtime.
What is the Mule SDK?
8

9. ● DevKit is not available for Mule 4.
● The SDK is not a code generator. The built module does not contain any generated
code (not even the XSD schema).
● Compared to DevKit, the SDK is more powerful and supports more features:
○ Transactions
○ Request-response message sources
○ Dynamic configurations
○ Routers
○ Non-blocking operations
○ Classloading isolation
○ Enhanced interoperability with runtime services
Mule4 SDK vs Mule3 Devkit
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10. 10

11. Mule 4 Java SDK Module Structure
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12. HTTP Module
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xmlns:http="http://www.mulesoft.org/schema/mule/http"
<http:listener-config name="HTTP_Listener_config" doc:name="HTTP
Listener config" doc:id="52ead09d-2189-4ed4-ad22-89c9f1e2bcd0" >
<http:listener-connection host="0.0.0.0" port="8081" />
</http:listener-config>
<dependency>
<groupId>org.mule.connectors</groupId>
<artifactId>mule-http-connector</artifactId>
<version>1.5.23</version>
<classifier>mule-plugin</classifier>
</dependency>

13. Mule 4 XML SDK Module Structure
13

14. • It should be generic - No Business specific use-case
• It should be thread safe
• No rely on flow variables(independent of flow)
• No dependency on Message attributes
• Mule context should not be accessed
• Don’t use system variable/annotation names(Mule skip them)
• Add Data Sense support(Optional but most recommended)
Best Practices
14

15. • Few out of many but they are complex to understand[By Mulesoft]
– https://github.com/mulesoft/mule-http-connector
– https://github.com/mulesoft/mule-email-connector
• Few simple to understand[Not by Mulesoft]
– https://github.com/mule-org-uk/docu-connector
– https://github.com/mulesoft-consulting/json-logger
– https://github.com/stackmerge/CurrencyConverterExtension
References to existing connectors
15

16. Demo
UseCase : Currency Exchange Custom
Connector

17. Q&A

18. Get ready to WIN a Special Gift from MuleSoft Community
Quiz Time

19. Question 1
Which SDK used to built Salesforce Connector?
A: JAVA SDK
B: XML SDK
C: DevKit
D: JSON
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20. Question 2
Which Mule version connector supporting transaction?
A: Mule 3
B: Mule 4
C: Both
D: None of the above
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21. Question 3
Which Operation(s) is/are supported by XML SDK?
A: Inbound Operation
B: Outbound Operation
C: Both
D: None of the above
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22. 22
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What’s next?

23. Thank you