DLMM SDK
Getting started
NPM: https://www.npmjs.com/package/@meteora-ag/dlmm-sdk-public
SDK: https://github.com/MeteoraAg/dlmm-sdk
Discord: https://discord.com/channels/841152225564950528/864859354335412224
Install
- Install deps
npm i @meteora-ag/dlmm-sdk-public @coral-xyz/anchor @solana/web3.js
- Initialize DLMM instance
const USDC_USDT_POOL = new PublicKey('ARwi1S4DaiTG5DX7S4M4ZsrXqpMD1MrTmbu9ue2tpmEq') // You can get your desired pool address from the API https://dlmm-api.meteora.ag/pair/all
const dlmmPool = await DLMM.create(connection, USDC_USDT_POOL, {
cluster: "devnet",
});
// If you need to create multiple, can consider using `createMultiple`
const dlmmPool = await DLMM.create(connection, [USDC_USDT_POOL, ...], {
cluster: "devnet",
});
- To interact with the AmmImpl
- Get Active Bin
const activeBin = await dlmmPool.getActiveBin();
const activeBinPriceLamport = activeBin.price;
const activeBinPricePerToken = dlmmPool.fromPricePerLamport(
Number(activeBin.price)
);
- Create Position
const TOTAL_RANGE_INTERVAL = 10; // 10 bins on each side of the active bin
const bins = [activeBin.binId]; // Make sure bins is less than 70, as currently only support up to 70 bins for 1 position
for (
let i = activeBin.binId;
i < activeBin.binId + TOTAL_RANGE_INTERVAL / 2;
i++
) {
const rightNextBinId = i + 1;
const leftPrevBinId = activeBin.binId - (rightNextBinId - activeBin.binId);
bins.push(rightNextBinId);
bins.unshift(leftPrevBinId);
}
const activeBinPricePerToken = dlmmPool.fromPricePerLamport(
Number(activeBin.price)
);
const totalXAmount = new BN(100);
const totalYAmount = totalXAmount.mul(new BN(Number(activeBinPricePerToken)));
// Get spot distribution (You can calculate with other strategy `calculateSpotDistribution`, `calculateNormalDistribution`)
const spotXYAmountDistribution = calculateSpotDistribution(
activeBin.binId,
bins
);
const newPosition = new Keypair();
const createPositionTx =
await dlmmPool.initializePositionAndAddLiquidityByWeight({
positionPubKey: newPosition.publicKey,
lbPairPubKey: dlmmPool.pubkey,
user: user.publicKey,
totalXAmount,
totalYAmount,
xYAmountDistribution: spotXYAmountDistribution,
});
try {
for (let tx of Array.isArray(createPositionTx)
? createPositionTx
: [createPositionTx]) {
const createPositionTxHash = await sendAndConfirmTransaction(
connection,
tx,
[user, newPosition]
);
}
} catch (error) {}
- Get list of positions
const { userPositions } = await dlmmPool.getPositionsByUserAndLbPair(
user.publicKey
);
const binData = userPositions[0].positionData.positionBinData;
- Add liquidity to existing position
const addLiquidityTx = await dlmmPool.addLiquidityByWeight({
positionPubKey: userPositions[0].publicKey,
lbPairPubKey: dlmmPool.pubkey,
user: user.publicKey,
totalXAmount,
totalYAmount,
xYAmountDistribution: spotXYAmountDistribution,
});
try {
for (let tx of Array.isArray(addLiquidityTx)
? addLiquidityTx
: [addLiquidityTx]) {
const addLiquidityTxHash = await sendAndConfirmTransaction(connection, tx, [
user,
newPosition,
]);
}
} catch (error) {}
- Remove Liquidity
const binIdsToRemove = userPositions[0].positionData.positionBinData.map(
(bin) => bin.binId
);
const removeLiquidityTx = await dlmmPool.removeLiquidity({
position: userPositions[0].publicKey,
user: user.publicKey,
binIds: binIdsToRemove,
liquiditiesBpsToRemove: new Array(binIdsToRemove.length).fill(
new BN(100 * 100)
), // 100% (range from 0 to 100)
shouldClaimAndClose: true, // should claim swap fee and close position together
});
try {
for (let tx of Array.isArray(removeLiquidityTx)
? removeLiquidityTx
: [removeLiquidityTx]) {
const removeLiquidityTxHash = await sendAndConfirmTransaction(
connection,
tx,
[user, newPosition]
);
}
} catch (error) {}
- Swap
const swapAmount = new BN(100);
// Swap quote
const swapQuote = await dlmmPool.swapQuote(swapAmount, true, new BN(10));
// Swap
const swapTx = await dlmmPool.swap({
inToken: dlmmPool.tokenX.publicKey,
binArraysPubkey: swapQuote.binArraysPubkey,
inAmount: swapAmount,
lbPair: dlmmPool.pubkey,
user: user.publicKey,
minOutAmount: swapQuote.minOutAmount,
outToken: dlmmPool.tokenY.publicKey,
});
try {
const swapTxHash = await sendAndConfirmTransaction(connection, swapTx, [
user,
]);
} catch (error) {}
Static functions
Function | Description | Return |
---|---|---|
create |
Given the DLMM address, create an instance to access the state and functions | Promise<DLMM> |
createMultiple |
Given a list of DLMM addresses, create instances to access the state and functions | Promise<Array<DLMM>> |
getAllLbPairPositionsByUser |
Given a list of DLMM addresses, create instances to access the state and functions | Promise<Map<string, PositionInfo>> |
DLMM instance functions
Function | Description | Return |
---|---|---|
refetchStates |
Update onchain state of DLMM instance. It's recommend to call this before interact with the program (Deposit/ Withdraw/ Swap) | Promise<void> |
getBinArrays |
Retrieves List of Bin Arrays | Promise<BinArrayAccount[]> |
getFeeInfo |
Retrieves LbPair's fee info including base fee , protocol fee & max fee
|
FeeInfo |
getDynamicFee |
Retrieves LbPair's dynamic fee | Decimal |
getBinsAroundActiveBin |
retrieves a specified number of bins to the left and right of the active bin and returns them along with the active bin ID. | Promise<{ activeBin: number; bins: BinLiquidity[] }> |
getBinsBetweenMinAndMaxPrice |
Retrieves a list of bins within a specified price | Promise<{ activeBin: number; bins: BinLiquidity[] }> |
getBinsBetweenLowerAndUpperBound |
retrieves a list of bins between a lower and upper bin ID and returns the active bin ID and the list of bins. | Promise<{ activeBin: number; bins: BinLiquidity[] }> |
toPricePerLamport |
Converts a real price of bin to lamport price | string |
fromPricePerLamport |
converts a price per lamport value to a real price of bin | string |
getActiveBin |
Retrieves the active bin ID and its corresponding price | Promise<{ binId: number; price: string }> |
getPriceOfBinByBinId |
Get the price of a bin based on its bin ID | string |
getBinIdFromPrice |
get bin ID based on a given price and a boolean flag indicating whether to round down or up. | number |
getPositionsByUserAndLbPair |
Retrieves positions by user and LB pair, including active bin and user positions. | Promise<{ activeBin: { binId: any; price: string; }; userPositions: Array<Position>;}> |
initializePositionAndAddLiquidityByWeight |
Initializes a position and adds liquidity | Promise<Transaction|Transaction[]> |
addLiquidityByWeight |
Add liquidity to existing position | Promise<Transaction|Transaction[]> |
removeLiquidity |
function is used to remove liquidity from a position, with the option to claim rewards and close the position. | Promise<Transaction|Transaction[]> |
closePosition |
Closes a position | Promise<Transaction|Transaction[]> |
swapQuote |
Quote for a swap | SwapQuote |
swap |
Swap token within the LbPair | Promise<Transaction> |
claimLMReward |
Claim rewards for a specific position owned by a specific owner | Promise<Transaction> |
claimAllLMRewards |
Claim all liquidity mining rewards for a given owner and their positions. | Promise<Transaction[]> |
claimSwapFee |
Claim swap fees for a specific position owned by a specific owner | Promise<Transaction> |
claimAllSwapFee |
Claim swap fees for multiple positions owned by a specific owner | Promise<Transaction> |
claimAllRewards |
Claim swap fees and LM rewards for multiple positions owned by a specific owner | Promise<Transaction[]> |