Description 

The HLF-Connector is a project within the Hyperledger Labs community that provides a way to connect to and interact with Hyperledger Fabric Blockchain Networks from external applications using REST APIs & Kafka based Topics. This connector acts as a gateway between Fabric and non-Fabric applications, allowing external applications to securely read and write data to the Fabric blockchain through both synchronous and asynchronous modes of interaction. HLF-Connector provides a convenient and flexible way to integrate Fabric blockchain networks into external applications, allowing developers to build robust and secure decentralized applications that can interact with the Fabric network. 

Learning Objectives

• Understand Hyperledger Fabric conceptually.
• Learn enterprise integrations for practical usage of blockchain technology.
• Become proficient in micro-service development.
• Design API interfaces and work to scale by handling asynchronous interfaces.
• Learn open source processes.
• Work closely with community experts.

Expected Outcome

• Design and implement new features in the connector.
• Updating the usage documentation.

Objective

1. E2E test suite for connector.
2. JMS Queue listener serial transaction processing.
3. Support for DLQ (Dead Letter Queue)
4. Allow retry for transactions - REST API
5. Support chaincode endorsement policy while chaincode approval and commit.
6. Structured logging
7. Usage Documentation

Relation to Hyperledger 

The project is a connector to interact with the Hyperledger Fabric network.

HLF-Connector, https://github.com/hyperledger-labs/hlf-connector

Hyperledger Fabric,  https://github.com/hyperledger/fabric

Education Level

Undergraduate / Graduate with relevant background in computer programming.

Mentee Skills

Must

• Experience working with Java programming language.
• Blockchain fundamentals and specifically any experience with Hyperledger Fabric.

Good to have

• Springboot framework exposure.
• Java Messaging service (JMS), Kafka
• Container technologies - Image creation, Orchestration etc.

Future plans

support and maintain the HLF-Connector with new features and security updates.

Mentor(s) Names and Contact Info

Nithin Pankaj, nithin.pankaj@walmart.com , Discord: 

Aditya Joshi, aditya.joshi@walmart.com , Discord: adityajoshi#9707