The highest tagged major version is v2.

liquidity

package

v1.23.21 Latest Latest Go to latest Published: Feb 22, 2026 License: BSD-3-Clause Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/luxfi/node

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Documentation ¶

Overview ¶

Package liquidity implements AMM liquidity pools for the DEX VM.

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrInsufficientLiquidity = errors.New("insufficient liquidity")
	ErrPoolNotFound          = errors.New("pool not found")
	ErrInvalidAmount         = errors.New("invalid amount")
	ErrSlippageExceeded      = errors.New("slippage exceeded")
	ErrZeroLiquidity         = errors.New("zero liquidity not allowed")
	ErrPoolExists            = errors.New("pool already exists")
	ErrSameToken             = errors.New("cannot create pool with same token")
)

Functions ¶

This section is empty.

Types ¶

type LPPosition ¶

type LPPosition struct {
	Owner      ids.ShortID `json:"owner"`
	PoolID     ids.ID      `json:"poolId"`
	Liquidity  *big.Int    `json:"liquidity"`           // LP tokens held
	Token0Owed *big.Int    `json:"token0Owed"`          // Unclaimed token0 fees
	Token1Owed *big.Int    `json:"token1Owed"`          // Unclaimed token1 fees
	TickLower  int32       `json:"tickLower,omitempty"` // For concentrated
	TickUpper  int32       `json:"tickUpper,omitempty"` // For concentrated
	CreatedAt  int64       `json:"createdAt"`
}

LPPosition represents a liquidity provider's position in a pool.

type Manager ¶

type Manager struct {
	// contains filtered or unexported fields
}

Manager manages all liquidity pools.

func NewManager ¶

func NewManager() *Manager

NewManager creates a new liquidity pool manager.

func (*Manager) AddLiquidity ¶

func (m *Manager) AddLiquidity(
	poolID ids.ID,
	amount0 *big.Int,
	amount1 *big.Int,
	minLiquidity *big.Int,
) (*big.Int, error)

AddLiquidity adds liquidity to a pool.

func (*Manager) CreatePool ¶

func (m *Manager) CreatePool(
	token0, token1 ids.ID,
	initialAmount0, initialAmount1 *big.Int,
	poolType PoolType,
	feeBps uint16,
) (*Pool, error)

CreatePool creates a new liquidity pool.

func (*Manager) GetAllPools ¶

func (m *Manager) GetAllPools() []*Pool

GetAllPools returns all pools.

func (*Manager) GetPool ¶

func (m *Manager) GetPool(poolID ids.ID) (*Pool, error)

GetPool returns a pool by ID.

func (*Manager) GetPoolByPair ¶

func (m *Manager) GetPoolByPair(token0, token1 ids.ID) (*Pool, error)

GetPoolByPair returns a pool by token pair.

func (*Manager) GetPoolsByTokenPair ¶

func (m *Manager) GetPoolsByTokenPair(token0, token1 ids.ID) []*Pool

GetPoolsByTokenPair returns all pools for a given token pair.

func (*Manager) GetQuote ¶

func (m *Manager) GetQuote(poolID ids.ID, tokenIn ids.ID, amountIn *big.Int) (*big.Int, error)

GetQuote returns the expected output for a swap.

func (*Manager) RemoveLiquidity ¶

func (m *Manager) RemoveLiquidity(
	poolID ids.ID,
	liquidity *big.Int,
	minAmount0 *big.Int,
	minAmount1 *big.Int,
) (*big.Int, *big.Int, error)

RemoveLiquidity removes liquidity from a pool.

func (*Manager) Swap ¶

func (m *Manager) Swap(
	poolID ids.ID,
	tokenIn ids.ID,
	amountIn *big.Int,
	minAmountOut *big.Int,
) (*SwapResult, error)

Swap executes a swap on a pool.

type Pool ¶

type Pool struct {
	ID          ids.ID   `json:"id"`
	Token0      ids.ID   `json:"token0"`   // First token in the pair
	Token1      ids.ID   `json:"token1"`   // Second token in the pair
	Reserve0    *big.Int `json:"reserve0"` // Reserve of token0
	Reserve1    *big.Int `json:"reserve1"` // Reserve of token1
	Type        PoolType `json:"type"`
	FeeBps      uint16   `json:"feeBps"`      // Trading fee in basis points
	TotalSupply *big.Int `json:"totalSupply"` // Total LP tokens

	// Concentrated liquidity parameters (for Concentrated type)
	TickLower    int32    `json:"tickLower,omitempty"`
	TickUpper    int32    `json:"tickUpper,omitempty"`
	SqrtPriceX96 *big.Int `json:"sqrtPriceX96,omitempty"`

	// Statistics
	Volume0 *big.Int `json:"volume0"` // Cumulative volume in token0
	Volume1 *big.Int `json:"volume1"` // Cumulative volume in token1
	Fees0   *big.Int `json:"fees0"`   // Cumulative fees in token0
	Fees1   *big.Int `json:"fees1"`   // Cumulative fees in token1
	TxCount uint64   `json:"txCount"` // Total transaction count

	CreatedAt int64 `json:"createdAt"`
	UpdatedAt int64 `json:"updatedAt"`
}

Pool represents an AMM liquidity pool.

type PoolType ¶

type PoolType uint8

PoolType represents the type of AMM pool.

const (
	ConstantProduct PoolType = iota // x * y = k (Uniswap V2 style)
	StableSwap                      // Low slippage for stable pairs
	Concentrated                    // Concentrated liquidity (Uniswap V3 style)
)

func (PoolType) String ¶

func (t PoolType) String() string

type SwapResult ¶

type SwapResult struct {
	AmountIn    *big.Int `json:"amountIn"`
	AmountOut   *big.Int `json:"amountOut"`
	Fee         *big.Int `json:"fee"`
	PriceImpact uint64   `json:"priceImpact"` // In basis points
	NewReserve0 *big.Int `json:"newReserve0"`
	NewReserve1 *big.Int `json:"newReserve1"`
}

SwapResult contains the result of a swap operation.

Source Files ¶

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