Solana Multi-DEX Arbitrage (Pseudocode only!) (Orca -> Whirlpool -> Orca)

solana-Multi-DEX-Arbitrage.rs

    pub fn execute_orca_whirlpool_arbitrage(
        ctx: Context<OrcaWhirlpoolArbitrage>,
        amount_in: u64,
        minimum_amount_1: u64,
        minimum_final_amount: u64,
    ) -> Result<()> {
        // 1. Orca swap
        _orca_swap(
            &ctx.accounts.orca_accounts_1,
            amount_in,
            minimum_amount_1,
        )?;

        // 2. Whirlpool swap
        _orca_swap(
            &ctx.accounts.whirlpool_accounts,
            minimum_amount_1,
            minimum_final_amount,
        )?;

        // Verify profit
        let profit = minimum_final_amount.checked_sub(amount_in)
            .ok_or(ErrorCode::ArithmeticError)?;
        
        require!(
            profit >= ctx.accounts.swap_state.profit_threshold,
            ErrorCode::InsufficientProfit
        );

        Ok(())
    }