mirror of
https://github.com/chainstacklabs/pumpfun-bonkfun-bot.git
synced 2026-07-29 00:07:44 +00:00
feat(example): add pump buy script with compute unit optimization (#143)
This commit is contained in:
Anton
@@ -0,0 +1,480 @@
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import asyncio
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import base64
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import hashlib
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import json
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import os
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import struct
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import base58
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import websockets
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from construct import Bytes, Flag, Int64ul, Struct
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from solana.rpc.async_api import AsyncClient
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from solana.rpc.commitment import Confirmed
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from solana.rpc.types import TxOpts
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from solders.compute_budget import set_compute_unit_price
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from solders.instruction import AccountMeta, Instruction
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from solders.keypair import Keypair
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from solders.message import Message
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from solders.pubkey import Pubkey
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from solders.transaction import Transaction
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from spl.token.instructions import (
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create_idempotent_associated_token_account,
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get_associated_token_address,
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)
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# Discriminators
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EXPECTED_DISCRIMINATOR = struct.pack("<Q", 6966180631402821399)
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TOKEN_DECIMALS = 6
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# Global constants
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PUMP_PROGRAM = Pubkey.from_string("6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P")
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PUMP_GLOBAL = Pubkey.from_string("4wTV1YmiEkRvAtNtsSGPtUrqRYQMe5SKy2uB4Jjaxnjf")
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PUMP_EVENT_AUTHORITY = Pubkey.from_string(
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"Ce6TQqeHC9p8KetsN6JsjHK7UTZk7nasjjnr7XxXp9F1"
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)
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PUMP_FEE = Pubkey.from_string("CebN5WGQ4jvEPvsVU4EoHEpgzq1VV7AbicfhtW4xC9iM")
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PUMP_FEE_PROGRAM = Pubkey.from_string("pfeeUxB6jkeY1Hxd7CsFCAjcbHA9rWtchMGdZ6VojVZ")
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SYSTEM_PROGRAM = Pubkey.from_string("11111111111111111111111111111111")
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SYSTEM_TOKEN_PROGRAM = Pubkey.from_string("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA")
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SYSTEM_ASSOCIATED_TOKEN_ACCOUNT_PROGRAM = Pubkey.from_string(
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"ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL"
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)
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SOL = Pubkey.from_string("So11111111111111111111111111111111111111112")
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LAMPORTS_PER_SOL = 1_000_000_000
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COMPUTE_BUDGET_PROGRAM = Pubkey.from_string(
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"ComputeBudget111111111111111111111111111111"
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)
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RPC_ENDPOINT = os.environ.get("SOLANA_NODE_RPC_ENDPOINT")
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RPC_WEBSOCKET = os.environ.get("SOLANA_NODE_WSS_ENDPOINT")
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class BondingCurveState:
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_STRUCT = Struct(
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"virtual_token_reserves" / Int64ul,
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"virtual_sol_reserves" / Int64ul,
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"real_token_reserves" / Int64ul,
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"real_sol_reserves" / Int64ul,
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"token_total_supply" / Int64ul,
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"complete" / Flag,
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"creator" / Bytes(32),
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)
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def __init__(self, data: bytes) -> None:
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if data[:8] != EXPECTED_DISCRIMINATOR:
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raise ValueError("Invalid curve state discriminator")
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parsed = self._STRUCT.parse(data[8:])
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self.__dict__.update(parsed)
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if hasattr(self, "creator") and isinstance(self.creator, bytes):
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self.creator = Pubkey.from_bytes(self.creator)
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async def get_pump_curve_state(
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conn: AsyncClient, curve_address: Pubkey
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) -> BondingCurveState:
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response = await conn.get_account_info(curve_address, encoding="base64")
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if not response.value or not response.value.data:
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raise ValueError("Invalid curve state: No data")
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data = response.value.data
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if data[:8] != EXPECTED_DISCRIMINATOR:
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raise ValueError("Invalid curve state discriminator")
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return BondingCurveState(data)
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def calculate_pump_curve_price(curve_state: BondingCurveState) -> float:
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if curve_state.virtual_token_reserves <= 0 or curve_state.virtual_sol_reserves <= 0:
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raise ValueError("Invalid reserve state")
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return (curve_state.virtual_sol_reserves / LAMPORTS_PER_SOL) / (
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curve_state.virtual_token_reserves / 10**TOKEN_DECIMALS
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)
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def _find_creator_vault(creator: Pubkey) -> Pubkey:
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derived_address, _ = Pubkey.find_program_address(
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[b"creator-vault", bytes(creator)], PUMP_PROGRAM
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)
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return derived_address
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def _find_global_volume_accumulator() -> Pubkey:
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derived_address, _ = Pubkey.find_program_address(
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[b"global_volume_accumulator"], PUMP_PROGRAM
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)
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return derived_address
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def _find_user_volume_accumulator(user: Pubkey) -> Pubkey:
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derived_address, _ = Pubkey.find_program_address(
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[b"user_volume_accumulator", bytes(user)], PUMP_PROGRAM
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)
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return derived_address
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def _find_fee_config() -> Pubkey:
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derived_address, _ = Pubkey.find_program_address(
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[b"fee_config", bytes(PUMP_PROGRAM)], PUMP_FEE_PROGRAM
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)
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return derived_address
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def set_loaded_accounts_data_size_limit(bytes_limit: int) -> Instruction:
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"""Create SetLoadedAccountsDataSizeLimit compute budget instruction."""
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data = struct.pack("<BI", 4, bytes_limit)
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return Instruction(COMPUTE_BUDGET_PROGRAM, data, [])
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def build_buy_instruction(
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payer: Keypair,
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mint: Pubkey,
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bonding_curve: Pubkey,
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associated_bonding_curve: Pubkey,
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creator_vault: Pubkey,
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token_amount: int,
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max_amount_lamports: int,
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):
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"""Build the buy instruction with all accounts."""
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associated_token_account = get_associated_token_address(payer.pubkey(), mint)
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accounts = [
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AccountMeta(pubkey=PUMP_GLOBAL, is_signer=False, is_writable=False),
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AccountMeta(pubkey=PUMP_FEE, is_signer=False, is_writable=True),
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AccountMeta(pubkey=mint, is_signer=False, is_writable=False),
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AccountMeta(pubkey=bonding_curve, is_signer=False, is_writable=True),
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AccountMeta(pubkey=associated_bonding_curve, is_signer=False, is_writable=True),
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AccountMeta(pubkey=associated_token_account, is_signer=False, is_writable=True),
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AccountMeta(pubkey=payer.pubkey(), is_signer=True, is_writable=True),
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AccountMeta(pubkey=SYSTEM_PROGRAM, is_signer=False, is_writable=False),
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AccountMeta(pubkey=SYSTEM_TOKEN_PROGRAM, is_signer=False, is_writable=False),
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AccountMeta(pubkey=creator_vault, is_signer=False, is_writable=True),
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AccountMeta(pubkey=PUMP_EVENT_AUTHORITY, is_signer=False, is_writable=False),
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AccountMeta(pubkey=PUMP_PROGRAM, is_signer=False, is_writable=False),
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AccountMeta(
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pubkey=_find_global_volume_accumulator(), is_signer=False, is_writable=True
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),
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AccountMeta(
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pubkey=_find_user_volume_accumulator(payer.pubkey()),
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is_signer=False,
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is_writable=True,
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),
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AccountMeta(pubkey=_find_fee_config(), is_signer=False, is_writable=False),
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AccountMeta(pubkey=PUMP_FEE_PROGRAM, is_signer=False, is_writable=False),
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]
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discriminator = struct.pack("<Q", 16927863322537952870)
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data = (
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discriminator
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+ struct.pack("<Q", token_amount)
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+ struct.pack("<Q", max_amount_lamports)
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)
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return Instruction(PUMP_PROGRAM, data, accounts)
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async def simulate_buy(
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mint: Pubkey,
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bonding_curve: Pubkey,
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associated_bonding_curve: Pubkey,
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creator_vault: Pubkey,
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amount: float,
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slippage: float = 0.25,
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):
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"""Simulate buy transaction and return CU consumption."""
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private_key = base58.b58decode(os.environ.get("SOLANA_PRIVATE_KEY"))
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payer = Keypair.from_bytes(private_key)
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async with AsyncClient(RPC_ENDPOINT) as client:
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amount_lamports = int(amount * LAMPORTS_PER_SOL)
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curve_state = await get_pump_curve_state(client, bonding_curve)
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token_price_sol = calculate_pump_curve_price(curve_state)
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token_amount = int((amount / token_price_sol) * 10**6)
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max_amount_lamports = int(amount_lamports * (1 + slippage))
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buy_ix = build_buy_instruction(
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payer,
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mint,
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bonding_curve,
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associated_bonding_curve,
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creator_vault,
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token_amount,
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max_amount_lamports,
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)
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idempotent_ata_ix = create_idempotent_associated_token_account(
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payer.pubkey(), payer.pubkey(), mint
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)
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msg = Message(
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[set_compute_unit_price(1_000), idempotent_ata_ix, buy_ix], payer.pubkey()
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)
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recent_blockhash = await client.get_latest_blockhash()
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tx = Transaction([payer], msg, recent_blockhash.value.blockhash)
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sim_result = await client.simulate_transaction(tx)
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if sim_result.value.err:
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print(f"Simulation error: {sim_result.value.err}")
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return None
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return sim_result.value.units_consumed
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async def buy_token(
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mint: Pubkey,
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bonding_curve: Pubkey,
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associated_bonding_curve: Pubkey,
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creator_vault: Pubkey,
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amount: float,
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slippage: float = 0.25,
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use_cu_optimization: bool = False,
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):
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"""Buy token with or without CU optimization."""
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private_key = base58.b58decode(os.environ.get("SOLANA_PRIVATE_KEY"))
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payer = Keypair.from_bytes(private_key)
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async with AsyncClient(RPC_ENDPOINT) as client:
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amount_lamports = int(amount * LAMPORTS_PER_SOL)
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curve_state = await get_pump_curve_state(client, bonding_curve)
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token_price_sol = calculate_pump_curve_price(curve_state)
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token_amount = int((amount / token_price_sol) * 10**6)
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max_amount_lamports = int(amount_lamports * (1 + slippage))
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buy_ix = build_buy_instruction(
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payer,
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mint,
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bonding_curve,
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associated_bonding_curve,
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creator_vault,
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token_amount,
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max_amount_lamports,
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)
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idempotent_ata_ix = create_idempotent_associated_token_account(
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payer.pubkey(), payer.pubkey(), mint
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)
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instructions = [set_compute_unit_price(1_000)]
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if use_cu_optimization:
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instructions.insert(0, set_loaded_accounts_data_size_limit(512_000))
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instructions.extend([idempotent_ata_ix, buy_ix])
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msg = Message(instructions, payer.pubkey())
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recent_blockhash = await client.get_latest_blockhash()
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tx = Transaction([payer], msg, recent_blockhash.value.blockhash)
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opts = TxOpts(skip_preflight=True, preflight_commitment=Confirmed)
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tx_result = await client.send_transaction(tx, opts=opts)
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tx_hash = tx_result.value
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print(f" TX: https://explorer.solana.com/tx/{tx_hash}")
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await client.confirm_transaction(
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tx_hash, commitment="confirmed", sleep_seconds=1
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)
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# Get CU consumption
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tx_details = await client.get_transaction(
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tx_hash, encoding="json", max_supported_transaction_version=0
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)
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if (
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tx_details.value
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and tx_details.value.transaction
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and tx_details.value.transaction.meta
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):
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cu_consumed = tx_details.value.transaction.meta.compute_units_consumed
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return cu_consumed
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return None
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def decode_create_instruction(ix_data, ix_def, accounts):
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"""Decode create instruction from transaction data."""
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args = {}
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offset = 8
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for arg in ix_def["args"]:
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if arg["type"] == "string":
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length = struct.unpack_from("<I", ix_data, offset)[0]
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offset += 4
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value = ix_data[offset : offset + length].decode("utf-8")
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offset += length
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elif arg["type"] == "pubkey":
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value = base58.b58encode(ix_data[offset : offset + 32]).decode("utf-8")
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offset += 32
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else:
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raise ValueError(f"Unsupported type: {arg['type']}")
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args[arg["name"]] = value
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args["mint"] = str(accounts[0])
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args["bondingCurve"] = str(accounts[2])
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args["associatedBondingCurve"] = str(accounts[3])
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args["user"] = str(accounts[7])
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return args
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async def listen_for_create_transaction():
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"""Listen for new token creation on pump.fun."""
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idl_path = os.path.join(os.path.dirname(__file__), "..", "idl", "pump_fun_idl.json")
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with open(idl_path) as f:
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idl = json.load(f)
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create_discriminator = struct.unpack(
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"<Q", hashlib.sha256(b"global:create").digest()[:8]
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)[0]
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async with websockets.connect(RPC_WEBSOCKET) as websocket:
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subscription_message = json.dumps(
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{
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"jsonrpc": "2.0",
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"id": 1,
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"method": "blockSubscribe",
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"params": [
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{"mentionsAccountOrProgram": str(PUMP_PROGRAM)},
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{
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"commitment": "confirmed",
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"encoding": "base64",
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"showRewards": False,
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"transactionDetails": "full",
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"maxSupportedTransactionVersion": 0,
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},
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],
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}
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)
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await websocket.send(subscription_message)
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print(f"Subscribed to blocks mentioning program: {PUMP_PROGRAM}")
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while True:
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response = await websocket.recv()
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data = json.loads(response)
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if "method" in data and data["method"] == "blockNotification":
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if "params" in data and "result" in data["params"]:
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block_data = data["params"]["result"]
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if "value" in block_data and "block" in block_data["value"]:
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block = block_data["value"]["block"]
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if "transactions" in block:
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for tx in block["transactions"]:
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if isinstance(tx, dict) and "transaction" in tx:
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from solders.transaction import VersionedTransaction
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tx_data_decoded = base64.b64decode(
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tx["transaction"][0]
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)
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transaction = VersionedTransaction.from_bytes(
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tx_data_decoded
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)
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for ix in transaction.message.instructions:
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if str(
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transaction.message.account_keys[
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ix.program_id_index
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]
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) == str(PUMP_PROGRAM):
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ix_data = bytes(ix.data)
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discriminator = struct.unpack(
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"<Q", ix_data[:8]
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)[0]
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if discriminator == create_discriminator:
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create_ix = next(
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instr
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for instr in idl["instructions"]
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if instr["name"] == "create"
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)
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account_keys = [
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str(
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transaction.message.account_keys[
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index
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]
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)
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for index in ix.accounts
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]
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decoded_args = (
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decode_create_instruction(
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ix_data, create_ix, account_keys
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)
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)
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return decoded_args
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async def main():
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print("Waiting for a new token creation...")
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token_data = await listen_for_create_transaction()
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print("New token created:")
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print(json.dumps(token_data, indent=2))
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print("\nWaiting 15 seconds for things to stabilize...")
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await asyncio.sleep(15)
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mint = Pubkey.from_string(token_data["mint"])
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bonding_curve = Pubkey.from_string(token_data["bondingCurve"])
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associated_bonding_curve = Pubkey.from_string(token_data["associatedBondingCurve"])
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# Get creator from bonding curve state
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async with AsyncClient(RPC_ENDPOINT) as client:
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curve_state = await get_pump_curve_state(client, bonding_curve)
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creator_vault = _find_creator_vault(curve_state.creator)
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token_price_sol = calculate_pump_curve_price(curve_state)
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amount = 0.001 # 0.001 SOL
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slippage = 0.3
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print(f"\nToken price: {token_price_sol:.10f} SOL")
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print(f"Buying {amount:.6f} SOL worth with {slippage * 100:.1f}% slippage\n")
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# 1. Simulate
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print("=" * 60)
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print("1. SIMULATION")
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print("=" * 60)
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sim_cu = await simulate_buy(
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mint, bonding_curve, associated_bonding_curve, creator_vault, amount, slippage
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)
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if sim_cu:
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print(f" Simulated CU consumption: {sim_cu:,}")
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# 2. Buy without optimization
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print("\n" + "=" * 60)
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print("2. BUY WITHOUT CU OPTIMIZATION")
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print("=" * 60)
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cu_no_opt = await buy_token(
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mint,
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bonding_curve,
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associated_bonding_curve,
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creator_vault,
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||||
amount,
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slippage,
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use_cu_optimization=False,
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)
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if cu_no_opt:
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||||
print(f" Actual CU consumed: {cu_no_opt:,}")
|
||||
|
||||
# 3. Buy with optimization
|
||||
print("\n" + "=" * 60)
|
||||
print("3. BUY WITH CU OPTIMIZATION (setLoadedAccountsDataSizeLimit)")
|
||||
print(" Setting limit to 500 KB (512,000 bytes)")
|
||||
print("=" * 60)
|
||||
cu_with_opt = await buy_token(
|
||||
mint,
|
||||
bonding_curve,
|
||||
associated_bonding_curve,
|
||||
creator_vault,
|
||||
amount,
|
||||
slippage,
|
||||
use_cu_optimization=True,
|
||||
)
|
||||
if cu_with_opt:
|
||||
print(f" ✓ Actual CU consumed (optimized): {cu_with_opt:,}")
|
||||
if cu_no_opt:
|
||||
immediate_savings = cu_no_opt - cu_with_opt
|
||||
print(f" ✓ Immediate savings: {immediate_savings:,} CU")
|
||||
|
||||
# Summary
|
||||
print("\n" + "=" * 60)
|
||||
print("SUMMARY")
|
||||
print("=" * 60)
|
||||
if sim_cu:
|
||||
print(f"Simulated: {sim_cu:,} CU")
|
||||
if cu_no_opt:
|
||||
print(f"Without optimize: {cu_no_opt:,} CU")
|
||||
if cu_with_opt:
|
||||
print(f"With optimize: {cu_with_opt:,} CU")
|
||||
if cu_no_opt:
|
||||
savings = cu_no_opt - cu_with_opt
|
||||
pct = (savings / cu_no_opt) * 100
|
||||
print(f"Savings: {savings:,} CU ({pct:.1f}%)")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
asyncio.run(main())
|
||||
Reference in New Issue
Block a user