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fix slippage and get_buy_token_amount_from_sol_amount

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This commit is contained in:
William
2025-05-14 22:11:16 +08:00
parent 07651638b9
commit 4198720c51
4 changed files with 65 additions and 37 deletions
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src/pumpfun/buy.rs
+13 -6
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@@ -7,11 +7,11 @@ use spl_associated_token_account::instruction::create_associated_token_account;
use tokio::task::JoinHandle;
use std::{str::FromStr, time::Instant, sync::Arc};
use crate::{common::{PriorityFee, SolanaRpcClient}, constants::{self, global_constants::FEE_RECIPIENT, trade::DEFAULT_SLIPPAGE}, instruction, swqos::FeeClient};
use crate::{common::{PriorityFee, SolanaRpcClient}, constants::{self, global_constants::FEE_RECIPIENT}, instruction, swqos::FeeClient};
const MAX_LOADED_ACCOUNTS_DATA_SIZE_LIMIT: u32 = 250000;
use super::common::{calculate_with_slippage_buy, get_bonding_curve_account, get_buy_token_amount, get_creator_vault_pda, get_global_account, get_initial_buy_price};
use super::common::{calculate_with_slippage_buy, get_bonding_curve_account, get_buy_token_amount_from_sol_amount, get_creator_vault_pda};
pub async fn buy(
rpc: Arc<SolanaRpcClient>,
@@ -146,11 +146,18 @@ pub async fn build_buy_instructions(
return Err(anyhow!("Amount cannot be zero"));
}
let (bonding_curve_account, bonding_curve_pda) = get_bonding_curve_account(&rpc, &mint).await?;
let (bonding_curve, bonding_curve_pda) = get_bonding_curve_account(&rpc, &mint).await?;
let creator_vault_pda = get_creator_vault_pda(&bonding_curve.creator).unwrap();
let max_sol_cost = calculate_with_slippage_buy(buy_sol_cost, slippage_basis_points.unwrap_or(100));
let creator_vault_pda = get_creator_vault_pda(&bonding_curve_account.creator).unwrap();
let (buy_token_amount, max_sol_cost) = get_buy_token_amount(&bonding_curve_account, buy_sol_cost, slippage_basis_points)?;
let mut buy_token_amount = get_buy_token_amount_from_sol_amount(&bonding_curve, buy_sol_cost);
if buy_token_amount <= 100 * 1_000_000_u64 {
buy_token_amount = if max_sol_cost > sol_to_lamports(0.01) {
25547619 * 1_000_000_u64
} else {
255476 * 1_000_000_u64
};
}
let mut instructions = vec![];
instructions.push(create_associated_token_account(