| Title | Creation of a functioning blockchain explorer for Hyperledger Sawtooth |
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| Difficulty |
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Blockchain is a back-end technology. However, for many of ScanTrust’s customer projects, customers still want a way to be able to “see” what is happening in the blockchain. They want to see the blocks being created, transactions committed, and ideally be able to make sense of what is inside the transaction. For this you need a blockchain explorer.
In our vision, the explorer is an application that both listens to events happening inside the blockchain (via websockets) as well as calling the sawtooth API, with an intuitive front-end for the user. The ideal explorer would be generic across sawtooth installations, but extensible by developers to add understanding of the customer data in the transactions (since it is often in a binary format) for display.
ScanTrust uses Hyperledger Sawtooth for several customer projects. The task of the intern would consist of creating a generic blockchain explorer for Hyperledger Sawtooth that ScanTrust will be able to use in current and future customer projects. This means that the intern will use a front-end framework to build an application that listens to ScanTrust’s existing Sawtooth infrastructure.
About ScanTrust:
Example of a ScanTrust Hyperledger Sawtooth Project:
https://www.hyperledger.org/wp-content/uploads/2018/08/Hyperledger_CaseStudy_ScanTrust.pdf
Event subscriptions in Hyperledger Sawtooth
Hyperledger Sawtooth Web Sockets:
Hard skills:
Learning about Hyperledger Sawtooth architecture, framework and consensus
Usage of Hyperledger Sawtooth APIs
Creation of blockchain web application
Usage of front-end frameworks for blockchain development
Introduction to the supply chain market
Soft skills:
Work in a remote team across borders
Work independently with little instructions
Functional web application with UI that can be used in customer projects, as described in paragraph “description”
Relation to Hyperledger
The project is related to the Hyperledger Sawtooth project.
Undergraduate or above
Must have:
Previous front-end development experience in modern web frameworks such as Vue, React, or Angular
Self starter and driven mindset
Ability to work independently with limited supervision
Good understanding of blockchain technology and distributed systems in general
Nice to have:
Python development experience
Basic DevOps experience (usage of docker images, docker files, docker containers etc.)
Previous Hyperledger Sawtooth exposure would of be helpful
If the project is implemented successfully, it will be used in all customer projects that involve Hyperledger Sawtooth as a technology. It will become one critical element in ScanTrust’s blockchain tool set.
Full-time (40 hours a week for 12 weeks during the summer)
Ricardo Garcia, ricardo.garcia@scantrust.com, Head of Partnerships & Blockchain Advisory
Andrew Backer, andrew.backer@scantrust.com, Head of Engineering
Vlad Bormisov, bormisov1@gmail.com, mentee
SawTooth Explorer is an easy to install and use web-based frontend for navigating and understanding data stored in a sawtooth instance. It does not require customization, only access to the sawtooth REST API. The frontend provides easy searching, and friendly display of you
Project Deliverables
Block/Batch/Transaction/State/Address Data Model
Methodology