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Improvements in HLF-Connector, Hardening the production readiness aspects

Improvements in HLF-Connector, Hardening the production readiness aspects

Feb 01, 2024

Project Title

Improvement in HLF-Connector, Hardening the production readiness aspects

Status

incomplete

Primary Focus

Coding   

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