module

README

Building

On first run: make proto-update-deps make proto-tools To build: make

Early MVP

Happy path implementations

Oracle

Assumptions

• An orchestrator may want to submit multiple claims with a msg (withdrawal batch update + MultiSig Set update )
• Nonces are not unique without a context (withdrawal nonce and MultiSig Set update can have same nonce (=height))
• A nonce is unique in it's context and never reused
• Multiple claims by an orchestrator for the same ETH event are forbidden
• We know the ETH event types beforehand (and handle them as ClaimTypes)
• For an observation status in Attestation the power AND count thresholds must be exceeded
• Fraction type allows higher precision math than %. For example with 2/3

A good start to follow the process would be the x/gravity/handler_test.go file

Outgoing TX Pool

Features

• Unique denominator for gravity vouchers in cosmos (🚧 cut to 15 chars and without a separator due to sdk limitations in v0.38.4)
• Voucher burning 🔥 (minting in test ⛏️ )
• Store/ resolve bridged ETH denominator and contract
• Persistent transaction pool
• Transactions sorted by fees (on a second index)
• Extended test setup

Assumptions

• We have only 1 chainID and 1 ETH contract

Bundle Outgoing TX into Batches

Features

• BatchTx type with OutgoingTransferTx and TransferCoin
• Logic to build batch from pending TXs based on fee desc order
• Logic to cancel a batch and revert TXs back to pending pool
• Incremental and unique IDs for batches to be used for nonces
• VoucherDenom as first class type

Not covered/ implemented

• unhappy cases
• proper unit + integration tests
• message validation
• Genesis I/O
• Parameters
• authZ: EthereumChainID whitelisted
• authZ: bridge contract address whitelisted