MELD Dev Diary 09

Lending & Borrowing

On-chain:

• Implemented smart contract logic for withdraw event creation transaction.
• Implemented smart contract logic for pool token withdrawal.
• Implemented on-chain compounded cumulative interest rates formula.
• Updated smart contracts with a more concise record syntax to improve readability.
• Updated in-house transaction builder library to support Simple script.
• Added faucet mint token API for building transactions to mint test token using Simple script.
• Built and dockerized lending-services that enable batcher to build batching transactions.
• Fixed special cases of custom typeclass instances serializing asset class.

Unit test:

• Wrote unit tests for pool contract.
• Fixed unit tests not running on CI.
• Adjusted running unit test use during build time to improve build performance.

Integration test:

• Added test user and batcher signing keys as secrets to docker-compose specification running local dev environment and integration tests.
• Wrote integration tests for account creation, account deposit, account updating, and test token minting.
• Fixed issues related to transaction building in lending and borrowing API.

Infrastructure

• Configured Github actions workflow for new MELDapp wallet which will build and update online code.
• Configured Github actions workflow for Storybook which will build and update online code.
• Fixing issues with sonarqube scan Github actions pipeline for new MELDapp wallet.

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