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Description 

The block squash and migration tool is expected to be used by many of the long-term users of an Iroha-based blockchain.

In addition to implementing it, the intern will learn about the challenges of maintaining an API and an ABI across multiple versions of a single high-performance ledger.

Additional Information

Kura: the part of Iroha 2 that stores the blocks.

Learning Objectives

The mentee shall:

• Learn Rust to the extent necessary to interact with the Iroha data model freely.
• Learn to uphold invariants that are not imposed in the library properly and learn how to correct corrupted data.
• Gain experience in ABI/API design.
• Learn the challenges associated with redundant distributed storage systems such as blockchains.

Expected Outcome

A more user-friendly interface to a more feature-complete Iroha block squash tool.

Relation to Hyperledger 

This project will become a part of the tools accompanying Hyperledger Iroha.

Mentee Skills

Understanding of:

• Rust type and trait system.
• Trait objects.
• Enums
• Understanding of contract-based programming.
• API / ABI stability.

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• Knowledge of serde & Rust
• Understanding of Fintech mathematical operations and precision or scientific computation.
• Knowledge of WASM.
• Knowledge or willingness to learn Rust GUI tools like Relm4 or Slint.

Future plans

This GUI will become an actively supported part of Iroha 2 project after implementation.

Mentor(s) Names and Contact Info

• Dmitry Balashov: dbalashov@soramitsu.co.jp, @quacumque
• Aleksandr Petrosyan: petrosyan@soramitsu.co.jp, @m3lcore

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