MELD Dev Diary 19

Borrowing & Lending

On-chain:

• Refactor Pool computation to reuse it more easily on the off-chain side
• Rename some parameters for better understanding
• Reduce fee for the updating collateral request
• Increase the number of decimals for more accurate interest calculation
• Update liquidation logic to handle unexpected cases

Off-chain & testing:

• Support ADA staking in the Pool contract
• Publish most docker images to ECR
• Implement the liquidation bot to support liquidators
• Update docker OS
• Fix CORS in the lending API server
• Export the on-chain function to get the liquidation data on the off-chain side
• Convert signing keys to bech32 format
• Update API to allow the treasury can deposit assets to the Pool contract, such min ADA UTXO amount
• Add health check to the faucet and main API
• Deploy contracts to Preview testnet
• Use more concise address type in lending API for more readability
• Add tag for docker images on release branches
• Return Tx instead of TxBody to support frontend transaction building
• Update filter account function in batching service
• Prepare config for Preprod tesnet
• Write documentation on running liquidation bot
• Mock oracle API should accept price map in oracle datum format
• Update liquidation bot code according to new liquidation logic

Faucet:

• Prepare UTXO packs for the lending faucet to avoid congestion
• Write the script file to mint public testnet faucet tokens
• Reimplement faucet API to avoid user paying fee when minting tokens
• Implement API documentation server for the lending faucet
• Add prefix to token names minted by lending faucet on testnet
• Update faucet config to randomize minting token amount

Infrastructure:

• Deploying AWS infrastructure for lending and borrowing for dev and staging environments
• Minor Fargate services fixes for easier deployments in dev and staging environment
• Configuring manual Fargate deployments for staging environment using Github actions workflow
• Creating ECR repositories for lending services
• Upgrade to latest version monitoring stack: Grafana/Prometheus
• Integrate AWS CloudWatch as Grafana datasource
• Configure Grafana Dashboards for: ECS, RDS, ALB
• Set up AWS data lifecycle manager for EC2 monitoring instance

MELDapp

• FE implementation with supply, borrow, repay and withdraw transaction protocol.
• BE enhancement on getting real-time token amount in the wallet

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