Periphery

Periphery.sol is a smart contract that is a wrapper around Voltz Core that abstracts away the complexity of interacting with the core directly.
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MintOrBurn
The mintOrBurn function performs two operations in a single transaction:
It adds or removes position liquidity from a Voltz IRS pool
It optionally adds margin in terms of underlying tokens to the position’s margin account
function mintOrBurn(IPeriphery.MintOrBurnParams params) external nonpayable returns (int256 positionMarginRequirement)
Parameters
Name
Type
Description
params
MintOrBurnParams
Parameters necessary to initiate a mint or a burn
MintOrBurnParams
Name
Type
Description
marginEngine
address
A Margin Engine address that uniquely identifies an IRS pool on Voltz Protocol
tickLower
int24
The lower tick of the position for which to add or remove liquidity
tickUpper
int24
The upper tick of the position for which to add or remove liquidity
notional 
uint256
The amount of notional in underlying tokens the liquidity provider wants to remove or deposit into their active liquidity position
isMint
bool
If true, add liquidity to the position, if false, remove liquidity from the position
marginDelta
marginDelta
The delta applied to the margin account of the position in underlying tokens.
Returns
Name
Type
Description
positionMarginRequirement
int256
The Initial Margin Requirement of the position following a mint or a burn
Swap
The swap function performs two operations in a single transaction:
It enters into Fixed or Variable Taker Interest Rate Swaps with a Voltz IRS pool
It optionally adds margin in terms of underlying tokens to the position’s margin account
function swap(IPeriphery.SwapPeripheryParams params) external nonpayable returns (int256 _fixedTokenDelta, int256 _variableTokenDelta, uint256 _cumulativeFeeIncurred, int256 _fixedTokenDeltaUnbalanced, int256 _marginRequirement, int24 _tickAfter)
Parameters
Name
Type
Description
params
SwapPeripheryParams
Parameters necessary to initiate an Interest Rate Swap via Voltz Protocol
SwapPeripheryParams
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Name
Type
Description
marginEngine
address
A Margin Engine address that uniquely identifies an IRS pool on Voltz Protocol
isFT
bool
If true, initiate a Fixed Taker Interest Rate Swap, if false initiate a Variable Taker Interest Rate Swap
notional
uint256
Notional in underlying tokens of the Interest Rate Swap
sqrtPriceLimitX96
uint160
The Q64.96 sqrt price limit. If dealing with a variable taker swap, the sqrt price of the vAMM cannot be less than this value. If dealing with a fixed taker swap, the sqrt price cannot be more than this value.
tickLower
int24
The lower tick of the position for which to add or remove liquidity
tickUpper 
int24
The upper tick of the position for which to add or remove liquidity
marginDelta
uint256
The delta applied to the margin account of the position in underlying tokens.
getLiquidityForNotional
This function computes the amount of liquidity received for a given notional amount and price range by:
Calculating the notional amount divided by the square root delta of the upper and lower ticks to get the amount of returned liquidity
Parameters
Name
Type
Description
sqrtRatioAX96
uint160
A sqrt price representing the first tick boundary
sqrtRatioBX96
uint160
A sqrt price representing the second tick boundary
notionalAmount
uint256
The amount of notional being sent in
Returns
Name
Type
Description
liquidity
uint128
The amount of returned liquidity
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MintOrBurn

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