sol-trade-sdk 4.0.3

Rust SDK to interact with the dex trade Solana program.
Documentation 
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pub mod calc;
pub mod price;
use crate::trading;
use crate::TradingClient;
use solana_sdk::pubkey::Pubkey;
use solana_sdk::signature::Keypair;
use solana_sdk::signer::Signer;

impl TradingClient {
    #[inline]
    pub async fn get_sol_balance(&self, payer: &Pubkey) -> Result<u64, anyhow::Error> {
        trading::common::utils::get_sol_balance(&self.infrastructure.rpc, payer).await
    }

    #[inline]
    pub async fn get_payer_sol_balance(&self) -> Result<u64, anyhow::Error> {
        trading::common::utils::get_sol_balance(&self.infrastructure.rpc, &self.payer.pubkey())
            .await
    }

    #[inline]
    pub async fn get_token_balance(
        &self,
        payer: &Pubkey,
        mint: &Pubkey,
    ) -> Result<u64, anyhow::Error> {
        trading::common::utils::get_token_balance(&self.infrastructure.rpc, payer, mint).await
    }

    #[inline]
    pub async fn get_payer_token_balance(&self, mint: &Pubkey) -> Result<u64, anyhow::Error> {
        trading::common::utils::get_token_balance(
            &self.infrastructure.rpc,
            &self.payer.pubkey(),
            mint,
        )
        .await
    }

    /// 使用与交易一致的 ATA 推导（含 seed 优化）查询 payer 某 mint 的余额；卖出前查余额应使用此接口并传入池的 base_token_program，否则若使用 seed ATA 会查错账户。
    #[inline]
    pub async fn get_payer_token_balance_with_program(
        &self,
        mint: &Pubkey,
        token_program: &Pubkey,
    ) -> Result<u64, anyhow::Error> {
        trading::common::utils::get_token_balance_with_options(
            &self.infrastructure.rpc,
            &self.payer.pubkey(),
            mint,
            token_program,
            self.use_seed_optimize,
        )
        .await
    }

    #[inline]
    pub fn get_payer_pubkey(&self) -> Pubkey {
        self.payer.pubkey()
    }

    #[inline]
    pub fn get_payer(&self) -> &Keypair {
        self.payer.as_ref()
    }

    #[inline]
    pub async fn transfer_sol(
        &self,
        payer: &Keypair,
        receive_wallet: &Pubkey,
        amount: u64,
    ) -> Result<(), anyhow::Error> {
        trading::common::utils::transfer_sol(
            &self.infrastructure.rpc,
            payer,
            receive_wallet,
            amount,
        )
        .await
    }

    #[inline]
    pub async fn close_token_account(&self, mint: &Pubkey) -> Result<(), anyhow::Error> {
        trading::common::utils::close_token_account(
            &self.infrastructure.rpc,
            self.payer.as_ref(),
            mint,
        )
        .await
    }
}