L2Encoder

Helper contract which has view methods to encode data that is passed to the L2Pool.

Methods
encodeSupplyParams
function encodeSupplyParams(address asset, uint256 amount, uint16 referralCode) external view returns (bytes32)
Returns bytes32 result to be passed to supply() method of L2Pool.
Param Name
Type
Description
asset
address
address of the asset being supplied to the pool.
amount
uint256
amount of asset being supplied.
referralCode
uint16
unique code for 3rd party referral program integration. Use 0 for no referral.
encodeSupplyWithPermitParams
function encodeSupplyWithPermit(address asset, uint256 amount, uint16 referralCode, uint256 deadline, uint8 permitV, bytes32 permitR, bytes32 permitS)`` external view returns (bytes32, bytes32, bytes32)
Returns (bytes32, bytes32, bytes32) result to be passed to supplyWithPermit() method of L2Pool.
Permit signature must be signed by msg.sender with spender as Pool address.
Call Params
Name
Type
Description
asset
address
Address of underlying asset being supplied. Same asset as used in permit s,v,r
amount
uint256
Amount of asset to be supplied and signed for approval. Same amount as used in permit s,v,r
referralCode
uint16
unique code for 3rd party referral program integration.

Use 0 for no referral.
deadline
uint256
unix timestamp up-till which signature will be valid
permitV
uint8
Signature parameter v
permitR
bytes32
Signature parameter r
permitS
bytes32
Signature parameter s
encodeWithdrawParams
function encodeWithdrawParams(address asset, uint256 amount) external view returns (bytes32)
Returns bytes32 result to be passed to withdraw() method of L2Pool.
Call Params
Name
Type
Description
asset
address
address of the underlying asset, not the aToken
amount
uint256
amount deposited, expressed in wei units. Use type(uint).max to withdraw the entire balance.
encodeBorrowParams
function encodeBorrowParams(address asset, uint256 amount, uint256 interestRateMode, uint16 referralCode) external view returns (bytes32)
Returns bytes32 result to be passed to borrow() method of L2Pool.
Call Params
Name
Type
Description
asset
address
address of the underlying asset
amount
uint256
amount to be borrowed, expressed in wei units
interestRateMode
uint256
the type of borrow debt.

Stable: 1, Variable: 2
referralCode
uint16
referral code for our referral program. Use 0 for no referral code.
encodeRepayParams
function encodeRepayParams(address asset, uint256 amount, uint256 interestRateMode) external view returns (bytes32)
Returns bytes32 result to be passed to repay() method of L2Pool.
Call Params
Name
Type
Description
asset
address
address of the underlying asset
amount
uint256
amount to be borrowed, expressed in wei units.
Use uint(-1) to repay the entire debt, ONLY when the repayment is not executed on behalf of a 3rd party.
In case of repayments on behalf of another user, it's recommended to send an _amount slightly higher than the current borrowed amount.
interestRateMode
uint256
the type of debt being repaid.
Stable: 1, Variable: 2
encodeRepayWithPermitParams
function encodeRepayWithPermitParams(address asset, uint256 amount, uint256 interestRateMode, uint256 deadline, uint8 permitV, bytes32 permitR, bytes32 permitS)`` external view returns (bytes32, bytes32, bytes32)
Returns (bytes32, bytes32, bytes32) result to be passed to repayWithPermit() method of L2Pool.
Call Params
Name
Type
Description
asset
address
Address of underlying asset being supplied. Same asset as used in permit s,v,r
amount
uint256
Amount of asset to be supplied and signed for approval. Same amount as used in permit s,v,r
interestRateMode
uint256
the type of debt being repaid.
Stable: 1, Variable: 2
deadline
uint256
unix timestamp up-till which signature will be valid
permitV
uint8
Signature parameter v
permitR
bytes32
Signature parameter r
permitS
bytes32
Signature parameter s
encodeRepayWithATokensParams
function encodeRepayWithATokensParams(address asset, uint256 amount, uint256 interestRateMode) external view returns (bytes32)
Returns bytes32 result to be passed to repay() method of L2Pool.
Call Params​
Name
Type
Description
asset
address
address of the underlying asset
amount
uint256
amount to be borrowed, expressed in wei units.
Use uint(-1) to repay the entire debt, ONLY when the repayment is not executed on behalf of a 3rd party.
In case of repayments on behalf of another user, it's recommended to send an _amount slightly higher than the current borrowed amount.
interestRateMode
uint256
the type of debt being repaid.
Stable: 1, Variable: 2
encodeSwapBorrowRateMode
function encodeSwapBorrowRateMode(address asset, uint256 rateMode) external view returns (bytes32)
Returns bytes32 result to be passed to swapBorrowRateMode() method of L2Pool.
Call Params
Name
Type
Description
asset
address
address of the underlying asset
rateMode
uint256
the rate mode the user is swapping from.
Stable: 1, Variable: 2
encodeRebalanceStableBorrowRate
function encodeRebalanceStableBorrowRate(address asset, address user)`` external view returns (bytes32)
Returns bytes32 result to be passed to rebalanceStableBorrowRate() method of L2Pool.
Call Params
Name
Type
Description
asset
address
Address of the underlying token that has been borrowed for which the position is being rebalanced.
user
address
Address of the user being rebalanced.
encodeSetUserUseReserveAsCollateral
function encodeSetUserUseReserveAsCollateral(address asset, bool useAsCollateral) external view returns (bytes32)
Returns bytes32 result to be passed to setUserUseReserveAsCollateral() method of L2Pool.
Call Params
Name
Type
Description
asset
address
address of the underlying asset to be used as collateral
useAsCollateral
bool
true if the asset should be used as collateral
encodeLiquidationCall
function encodeLiquidationCall(address collateral, address debt, address user, uint256 debtToCover, bool receiveAToken) external view returns (bytes32, bytes32)
Returns (bytes32, bytes32) result to be passed to liquidationCall() method of L2Pool.
Call Params
Name
Type
Description
collateral
address
address of the collateral reserve
debt
address
address of the debt reserve
user
address
address of the borrower
debtToCover
uint256
amount of asset debt that the liquidator will repay
receiveAToken
bool
if true, the user receives the aTokens equivalent of the purchased collateral. If false, the user receives the underlying asset directly.
ABI
L2Encoder ABI
[
    {
        "inputs": [
            {
                "internalType": "contract IPool",
                "name": "pool",
                "type": "address"
            }
        ],
        "stateMutability": "nonpayable",
        "type": "constructor"
    },
    {
        "inputs": [],
        "name": "POOL",
        "outputs": [
            {
                "internalType": "contract IPool",
                "name": "",
                "type": "address"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint256",
                "name": "interestRateMode",
                "type": "uint256"
            },
            {
                "internalType": "uint16",
                "name": "referralCode",
                "type": "uint16"
            }
        ],
        "name": "encodeBorrowParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "collateralAsset",
                "type": "address"
            },
            {
                "internalType": "address",
                "name": "debtAsset",
                "type": "address"
            },
            {
                "internalType": "address",
                "name": "user",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "debtToCover",
                "type": "uint256"
            },
            {
                "internalType": "bool",
                "name": "receiveAToken",
                "type": "bool"
            }
        ],
        "name": "encodeLiquidationCall",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "address",
                "name": "user",
                "type": "address"
            }
        ],
        "name": "encodeRebalanceStableBorrowRate",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint256",
                "name": "interestRateMode",
                "type": "uint256"
            }
        ],
        "name": "encodeRepayParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint256",
                "name": "interestRateMode",
                "type": "uint256"
            }
        ],
        "name": "encodeRepayWithATokensParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint256",
                "name": "interestRateMode",
                "type": "uint256"
            },
            {
                "internalType": "uint256",
                "name": "deadline",
                "type": "uint256"
            },
            {
                "internalType": "uint8",
                "name": "permitV",
                "type": "uint8"
            },
            {
                "internalType": "bytes32",
                "name": "permitR",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "permitS",
                "type": "bytes32"
            }
        ],
        "name": "encodeRepayWithPermitParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "bool",
                "name": "useAsCollateral",
                "type": "bool"
            }
        ],
        "name": "encodeSetUserUseReserveAsCollateral",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint16",
                "name": "referralCode",
                "type": "uint16"
            }
        ],
        "name": "encodeSupplyParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            },
            {
                "internalType": "uint16",
                "name": "referralCode",
                "type": "uint16"
            },
            {
                "internalType": "uint256",
                "name": "deadline",
                "type": "uint256"
            },
            {
                "internalType": "uint8",
                "name": "permitV",
                "type": "uint8"
            },
            {
                "internalType": "bytes32",
                "name": "permitR",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "permitS",
                "type": "bytes32"
            }
        ],
        "name": "encodeSupplyWithPermitParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            },
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "interestRateMode",
                "type": "uint256"
            }
        ],
        "name": "encodeSwapBorrowRateMode",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "address",
                "name": "asset",
                "type": "address"
            },
            {
                "internalType": "uint256",
                "name": "amount",
                "type": "uint256"
            }
        ],
        "name": "encodeWithdrawParams",
        "outputs": [
            {
                "internalType": "bytes32",
                "name": "",
                "type": "bytes32"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    }
]

Param Name	Type	Description
asset	address	address of the asset being supplied to the pool.
amount	uint256	amount of asset being supplied.
referralCode	uint16	unique code for 3rd party referral program integration. Use 0 for no referral.

Name	Type	Description
asset	address	Address of underlying asset being supplied. Same asset as used in permit s,v,r
amount	uint256	Amount of asset to be supplied and signed for approval. Same amount as used in permit s,v,r
referralCode	uint16	unique code for 3rd party referral program integration. Use 0 for no referral.
deadline	uint256	unix timestamp up-till which signature will be valid
permitV	uint8	Signature parameter v
permitR	bytes32	Signature parameter r
permitS	bytes32	Signature parameter s

Name	Type	Description
asset	address	address of the underlying asset, not the aToken
amount	uint256	amount deposited, expressed in wei units. Use `type(uint).max` to withdraw the entire balance.

Name	Type	Description
asset	address	address of the underlying asset
amount	uint256	amount to be borrowed, expressed in wei units
interestRateMode	uint256	the type of borrow debt. Stable: 1, Variable: 2
referralCode	uint16	referral code for our referral program. Use 0 for no referral code.

Name	Type	Description
asset	address	address of the underlying asset
amount	uint256	amount to be borrowed, expressed in wei units. Use uint(-1) to repay the entire debt, ONLY when the repayment is not executed on behalf of a 3rd party. In case of repayments on behalf of another user, it's recommended to send an _amount slightly higher than the current borrowed amount.
interestRateMode	uint256	the type of debt being repaid. Stable: 1, Variable: 2

Name	Type	Description
asset	address	Address of underlying asset being supplied. Same asset as used in permit s,v,r
amount	uint256	Amount of asset to be supplied and signed for approval. Same amount as used in permit s,v,r
interestRateMode	uint256	the type of debt being repaid. Stable: 1, Variable: 2
deadline	uint256	unix timestamp up-till which signature will be valid
permitV	uint8	Signature parameter v
permitR	bytes32	Signature parameter r
permitS	bytes32	Signature parameter s

Name	Type	Description
asset	address	address of the underlying asset
amount	uint256	amount to be borrowed, expressed in wei units. Use uint(-1) to repay the entire debt, ONLY when the repayment is not executed on behalf of a 3rd party. In case of repayments on behalf of another user, it's recommended to send an _amount slightly higher than the current borrowed amount.
interestRateMode	uint256	the type of debt being repaid. Stable: 1, Variable: 2

Name	Type	Description
asset	address	address of the underlying asset
rateMode	uint256	the rate mode the user is swapping from. Stable: 1, Variable: 2

Name	Type	Description
asset	address	Address of the underlying token that has been borrowed for which the position is being rebalanced.
user	address	Address of the user being rebalanced.

Name	Type	Description
asset	address	address of the underlying asset to be used as collateral
useAsCollateral	bool	true if the asset should be used as collateral

Name	Type	Description
collateral	address	address of the collateral reserve
debt	address	address of the debt reserve
user	address	address of the borrower
debtToCover	uint256	amount of asset debt that the liquidator will repay
receiveAToken	bool	if true, the user receives the aTokens equivalent of the purchased collateral. If false, the user receives the underlying asset directly.

L2Pool

Next - Getting Started

Protocol Features Summary

Last modified 1yr ago