Strategy

A strategy acts as a connector to a specific protocol. Every strategy implements the EIP4626 interface. Some strategies may also include functions for handling incentives, in which case they implement the IStrategyWithIncentives.sol interface.

At this moment, MAAT has connected strategies for the following protocols:

1. AAVE

2. Harvest Finance

3. Stargate Finance

4. Yearn Finance

EIP4626

All standard EIP4626 functions are implemented.

To improve security of MAAT only vault can call deposit and mint functions.

Write methods

setPerformanceFee

function setPerformanceFee(uint fee) 

Only callable by the owner of the strategy. Set performance fee - fee that will be taken from profit.

Params

Param	Type	Description
fee	uint	Performance fee

setFeeTo

function setFeeTo(address _feeTo) 

Only callable by the owner of the strategy. Set address that will receive performance fee.

Params

Param	Type	Description
_feeTo	address	Address that will receive performance fee

harvest

function harvest()

Only callable by IncentivesController. Strategies with incentives implement this method. It's used to claim rewards of underlying protocol.

compound

function compound(uint256 amount)

Only callable by IncentivesController. Strategies with incentives implement this method. It's used to compound rewards of underlying protocol.

Params

Param	Type	Description
amount	uint256	Amount of tokens to compound

View methods

getStrategyParams

function getStrategyParams()

Get strategy params. Params includes:

• chainId - chain id of the strategy

• protocol - underlying protocol name

• protocolVersion - underlying protocol version

• token - underlying token address

• protocolVault - underlying protocol vault address

Returns

Type	Description
params	StrategyParams

getStrategyId

function getStrategyId()

Get strategy id. Every strategy has unique id, which created from strategy params.

Returns

Type	Description
bytes32	Strategy id

previewHarvest

function previewHarvest()

Only Strategies with incentives implement this method. It's used to preview rewards of underlying protocol.

Returns

Type	Description
address[]	Addresses of the reward tokens
uint256[]	Rewards