MELD Dev Diary 15

Borrowing & Lending

On-chain:

• Account creation with preloaded requests in the same transaction.
• Different set of risk parameters for each average of loan-to-value and liquidation threshold.
• Borrow and supply cap for each type of asset.
• Separate pool value change into receivable and payable to avoid value normalization.
• Replace let with plet for optimization.
• Payback to user the remaining asset after clearing all borrowing.
• Avoided duplicate pool existence check by delegating to first account.
• Liquidator repay-all request assertion when liquidating.
• Fix missing initial risk parameters.
• Experiment a Scott-encoding version of PMap.

Off-chain:

• Add creating account with pending requests to lending-API
• Creating oracle service to update oracle contract periodically with tokens’ prices fetching from external source API.
• Update services and API with risk parameters for each asset.

MELDapp:

• Integrate Web3Auth to create and restore wallets for user onboarding.
• Backend infrastructure and API to store historical transactions and asset values.
• Integration to send and receive tokens on Cardano

Infrastructure:

• VPC terraform module to setup different number of subnets and NAT gateways for production and development environments.
• Work on AWS infrastructure (terraform code) for new MELDApp backend.

Read more from the Dev Diary series here!