💱 Create Pool

Create Pool

To Create a Pool all we need to import from @saros-finance/dlmm-sdk are:

createPool.tsx

TypeScript

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import {
  BIN_STEP_CONFIGS,
  LiquidityBookServices,
  MODE,
} from "@saros - finance / dlmm - sdk";
import {
  PublicKey,
  Transaction,
  Keypair,
  signTransaction,
} from "@solana / web3.js";

Create Pool configurations

Next we need to initialize our Liquidity book service using mainnet or devnet mode.

createPool.tsx

TypeScript

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const liquidityBookServices = new LiquidityBookServices({
  mode: MODE.MAINNET,
});

Tokens and Pool configs

createPool.tsx

TypeScript

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const userAddress = "Fke5jj8NMGGes1fyMysvfpi67BkBF5DiQPCQzoT6yCyj"; //user wallet

// Pool example on saros C98 to USDC
const USDC_TOKEN = {
  id: "usd - coin",
  mintAddress: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
  symbol: "usdc",
  name: "USD Coin",
  decimals: 6,
  addressSPL: "FXRiEosEvHnpc3XZY1NS7an2PB1SunnYW1f5zppYhXb3",
};

const C98_TOKEN = {
  id: "coin98",
  mintAddress: "C98A4nkJXhpVZNAZdHUA95RpTF3T4whtQubL3YobiUX9",
  symbol: "C98",
  name: "Coin98",
  decimals: 6,
  addressSPL: "EKCdCBjfQ6t5FBfDC2zvmr27PgfVVZU37C8LUE4UenKb",
};

const POOL_PARAMS = {
  address: "EwsqJeioGAXE5EdZHj1QvcuvqgVhJDp9729H5wjh28DD",
  baseToken: C98_TOKEN,
  quoteToken: USDC_TOKEN,
  slippage: 0.5,
  hook: "", // config for reward, adding later
};

//Devnet Tokens and Pool_Params
const WSOL_TOKEN_DEVNET = {
  id: "wsol",
  mintAddress: "So11111111111111111111111111111111111111112",
  symbol: "WSOL",
  name: "WSOL",
  decimals: 9,
};

const SAROS_TOKEN_DEVNET = {
  id: "saros",
  mintAddress: "mntCAkd76nKSVTYxwu8qwQnhPcEE9JyEbgW6eEpwr1N",
  symbol: "DEXV3 - SAROS",
  name: "Dex V3 Saros",
  decimals: 6,
};

const POOL_PARAMS_DEVNET = {
  address: "C8xWcMpzqetpxwLj7tJfSQ6J8Juh1wHFdT5KrkwdYPQB",
  baseToken: SAROS_TOKEN_DEVNET,
  quoteToken: SOL_TOKEN_DEVNET,
  slippage: 0.5,
  hook: "", // config for reward, adding later
};

Usage

createPool.tsx

TypeScript

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const handleCreatePool = async () => {
  try {
    const connection = liquidityBookServices.connection;
    const tokenX = C98_TOKEN;
    const tokenY = USDC_TOKEN;
    const binStep = BIN_STEP_CONFIGS[3].binStep; // Example bin step, you can choose from BIN_STEP_CONFIGS
    const ratePrice = 1; // Example rate price, you can set it based on your requirements
    const payer = new PublicKey(userAddress);

    const { blockhash, lastValidBlockHeight } =
    await connection!.getLatestBlockhash({
      commitment: "confirmed",
    });

    const { tx } = await liquidityBookServices.createPairWithConfig({
      tokenBase: {
        mintAddress: tokenX.mintAddress,
        decimal: tokenX.decimals
      },
      tokenQuote: {
        mintAddress: tokenY.mintAddress,
        decimal: tokenY.decimals
      },
      ratePrice,
      binStep,
      payer,
    });
    tx.recentBlockhash = blockhash;
    tx.feePayer = payer;
    const signedTx = await signTransaction(tx);

    const txHash = await connection.sendRawTransaction(signedTx.serialize(), {
      skipPreflight: true,
      preflightCommitment: "confirmed"
    });

    await connection.confirmTransaction({
      signature: txHash,
      blockhash,
      lastValidBlockHeight
    }, "finalized");

  } catch (error) {
    if (error instanceOf Error) console.error(error.message)
  }

};