Destination Vaults

Destination Vaults act as our proxy to the greater DeFi ecosystem. Their goal is to provide a common interface for us to deposit/withdraw LP tokens and earn yield. Each type of Destination has its own unique concrete DestinationVault implementation. Currently we support:

• Balancer Pools

• Balancer Pools with LP staked into Aura

• Curve Pools with LP staked into Convex

• Maverick Boosted Positions

Core Functionality

Depositing and Withdrawing LP Tokens

Autopool’s will be the main actors interacting with a Destination Vault. Primarily this will come in the form of deposit and withdrawing LP tokens. The actions taken after a deposit aren’t much of a concern to the Autopool and can vary depending on the specific type of Destination. If this is a just a “Balancer Pool” type of Destination then the LP tokens will stay in the Destination Vault. If this is a Destination that say stakes into Aura, then that operation will happen upon deposit.

Withdrawing can come in two forms: as the LP units, or as the base asset. The LP unit can be withdrawn as part of a rebalance. During a user withdraw where we have to pull from the market, the LP units burned and the resulting tokens will be swapped into the base asset. All base assets in the system will be WETH at this time. Additional validations will be required to support additional base assets.

Collecting Rewards

Depending on the type of Destination Vault, rewards may be due to us for holding or staking the LP units. The implementation of this can be hard coded to return nothing, or to interact with an external protocol. Resulting claimed tokens are sent to the caller of collectRewards().

Marketplace Rewards

These functions are intentionally left empty at this time.

1271 Support

DestinationVaults have very simple 1271 support. The exact usage of this is unknown at this time. However, much of the current and coming narrative around points and other various off-chain crediting systems present a unique problem for us when it comes to claiming these rewards. It is our hope that protocols will support this interface when it comes to claiming or at least we can prove ownership of transferrability of these rewards via this interface.

Architecture