pumpdotfun-sdk-repumped
Version:
Pumpfun SDK — create, buy, sell tokens with support for Jito bundles and multiple relayer integrations. Rebuilt and fixed pumpdotfun-sdk.
78 lines (75 loc) • 3.66 kB
JavaScript
import { searcherClient } from 'jito-ts/dist/sdk/block-engine/searcher.js';
import { Transaction, SystemProgram } from '@solana/web3.js';
import { DEFAULT_COMMITMENT } from '../pumpFun.consts.mjs';
import { calculateWithSlippageBuy, calculateWithSlippageSell } from '../slippage.mjs';
import { buildSignedTx } from '../tx.mjs';
import { getRandomJitoTipAccount } from './utils.mjs';
import { Bundle } from 'jito-ts/dist/sdk/block-engine/types.js';
class JitoModule {
sdk;
client;
constructor(sdk, endpoint, authKeypair) {
this.sdk = sdk;
if (!endpoint) {
throw new Error("Jito endpoint is required");
}
this.client = searcherClient(endpoint, authKeypair);
}
async buyJito(buyer, mint, buyAmountSol, slippageBasisPoints = 500n, jitoTip = 500000, priorityFees, commitment = DEFAULT_COMMITMENT) {
const bondingAccount = await this.sdk.token.getBondingCurveAccount(mint, commitment);
if (!bondingAccount) {
throw new Error(`Bonding curve account not found: ${mint.toBase58()}`);
}
const buyAmount = bondingAccount.getBuyPrice(buyAmountSol);
const buyAmountWithSlippage = calculateWithSlippageBuy(buyAmountSol, slippageBasisPoints);
const transaction = new Transaction();
await this.sdk.trade.buildBuyIx(buyer.publicKey, mint, buyAmount, buyAmountWithSlippage, transaction, commitment, false);
this.addJitoTip(buyer, transaction, jitoTip);
const signedTx = await buildSignedTx(priorityFees, transaction, this.sdk.connection, buyer.publicKey, commitment, [buyer]);
return await this.sendJitoTx(signedTx);
}
async sellJito(seller, mint, sellTokenAmount, slippageBasisPoints = 500n, jitoTip = 500000, priorityFees, commitment = DEFAULT_COMMITMENT) {
const bondingAccount = await this.sdk.token.getBondingCurveAccount(mint, commitment);
if (!bondingAccount)
throw new Error(`Bonding curve account not found: ${mint.toBase58()}`);
const globalAccount = await this.sdk.token.getGlobalAccount(commitment);
const minSolOutput = bondingAccount.getSellPrice(sellTokenAmount, globalAccount.feeBasisPoints);
let sellAmountWithSlippage = calculateWithSlippageSell(minSolOutput, slippageBasisPoints);
if (sellAmountWithSlippage < 1n)
sellAmountWithSlippage = 1n;
const transaction = new Transaction();
await this.sdk.trade.buildSellIx(seller.publicKey, mint, sellTokenAmount, sellAmountWithSlippage, transaction, commitment);
this.addJitoTip(seller, transaction, jitoTip);
const signedTx = await buildSignedTx(priorityFees, transaction, this.sdk.connection, seller.publicKey, commitment, [seller]);
return await this.sendJitoTx(signedTx);
}
addJitoTip(buyer, transaction, jitoTip = 500000) {
if (jitoTip <= 0) {
return transaction;
}
const jitoTipAccount = getRandomJitoTipAccount();
const jitoTipInstruction = SystemProgram.transfer({
fromPubkey: buyer.publicKey,
toPubkey: jitoTipAccount,
lamports: jitoTip,
});
transaction.add(jitoTipInstruction);
return transaction;
}
async sendJitoTx(tx) {
const b = new Bundle([tx], 1);
const res = await this.client.sendBundle(b);
if (res.ok) {
return {
success: true,
bundleId: res.value,
};
}
return {
success: false,
error: res.error,
};
}
}
export { JitoModule };
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