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Description
WebAssembly (WASM) has slowly become a popular language for smart contract development. One of the key features of the WebAssembly is that different languages such as Rust, Python, C/C++ support compilation to WASM. By integrating WASM into Hyperledger Fabric, chaincode developers will be given a wider variety of languages to choose from when constructing their smart contracts.
The overall goal of this project is to enable this feature in Fabric. We are looking for an intern who is interested in adding this support. He/she will be tasked to come up with a design for the integration and achieve a basic implementation by the end of the internship. As well as integrating WASM, we are also looking for the development of examples as to how this new feature will be used in the workflow the intern creates. We have provided a possible Go implementation of WASM as a possible resource/library, however we are open to the intern choosing a different implementation and chaincode language.
Additional Information
https://github.com/hyperledger/fabric - want functionality for Fabric
https://github.com/perlin-network/life - suggested WASM vm to be integrated. Other WASM implementations can be used instead.
https://github.com/hyperledger/fabric-chaincode-evm - example of the potential of WASM/how wasm can be integrated
Learning Objectives
Learn to work in open source development which includes communicating using open source channels, working with the community to get feedback and help to complete the project
Learn good software development practices
Learn to communicate and work global teams
Learning to design a project/feature end to end
Expected Outcome
Evaluations of the multiple web assembly libraries for a language and why we should base out implementation on any specific library.
A chaincode that once installed in Fabric can be used to run Web Assembly Smart Contracts
Sample applications/tutorials to go along to use the feature. As a user of this feature I should be able to follow this tutorial to understand end to end.
Relation to Hyperledger
We want to add this feature to Hyperledger Fabric (https://github.com/hyperledger/fabric).
Education Level
Students in undergraduate programs can apply.
Skills
Git / understanding of source control
Go (Preferred), if not then comfortable with languages such as C/C++, or Java
Familiarity with unix commands
Future plans
Based on the popularity of WASM we would like to turn this into project/feature we continue and develop in a similar fashion as the fabric-chaincode-evm.
Preferred Hours and Length of Internship
Both full time and part time are okay.
Mentor(s) Names and Contact Info
Usernames below are for chat.hyperledger.org
Morgan Bauer, mbauer@us.ibm.com, @MHBauer, IBM
Jay Guo, guojiannan@cn.ibm.com, @guoger, IBM
Swetha Repakula, srepaku@us.ibm.com, @swetha, IBM
Mentor
Frequently Asked Questions
Q: Why golang?
A1: We have already written one chaincode in golang (see above). Thus we would be most helpful to guide writing another chaincode in golang.
A2: It must be in a supported chaincode language, right now that is Java, Javascript, and golang.
Q: What should I do to prepare?
A: There should be time to preparation and learning during the actual internship. If you want to get a taste for the coding part of what you'll most likely be doing, check out the fabric-chaincode-evm project linked above. Try and follow the tutorials and deploy it. Make a change and redeploy it.
Project Deliverables
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Project Repository:
https://github.com/hyperledger-labs/fabric-chaincode-wasm
Project Summary :
View file name Project Fabric chaincode wasm.pdf page Running Web Assembly Smart Contracts in Fabric space INTERN height 250
Quick Demo Video:
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