The dynamic-bonding-curve-sdk provides a convenient way to interact with the Dynamic Bonding Curve program and get swap quotes. Before you begin, here are some important resources:
  • Program ID (Mainnet & Devnet): dbcij3LWUppWqq96dh6gJWwBifmcGfLSB5D4DuSMaqN
  • Rust SDK: Dynamic Bonding Curve

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quote_exact_in

This function calculates the result of a swap for a given amount of an exact input token. It’s useful for estimating the outcome of a trade before executing it on-chain.

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Function Signature

pub fn quote_exact_in(
    virtual_pool: &VirtualPool,
    config: &PoolConfig,
    swap_base_for_quote: bool,
    current_timestamp: u64,
    current_slot: u64,
    transfer_fee_excluded_amount_in: u64,
    has_referral: bool,
) -> Result<SwapResult>

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Parameters

  • virtual_pool: A reference to the VirtualPool state.
  • config: A reference to the PoolConfig for the pool.
  • swap_base_for_quote: A boolean indicating the direction of the trade. true for swapping base token for quote token, false otherwise.
  • current_timestamp: The current Solana cluster timestamp.
  • current_slot: The current Solana cluster slot.
  • transfer_fee_excluded_amount_in: The amount of input tokens for the swap, excluding any transfer fees.
  • has_referral: A boolean indicating if a referral fee should be considered.

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Returns

It returns a Result<SwapResult>, where SwapResult contains detailed information about the outcome of the swap, such as the amount out, fees, and the new state of the pool.