FastBridgeInterceptor

Git Source

Inherits: IFastBridgeInterceptor

Contract that enables flexible bridging with automatic price adjustment.

Enforces a maximum 1% deviation limit between quoted and actual amounts.

State Variables

MAX_ORIGIN_PCT_DIFF

Maximum allowed percentage difference (1%) from the quoted origin amount.

uint256 public constant MAX_ORIGIN_PCT_DIFF = 0.01e18;

NATIVE_GAS_TOKEN

Special address representing the native gas token (ETH).

address public constant NATIVE_GAS_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

WEI

Base unit for percentage calculations (100% = 1e18).

uint256 internal constant WEI = 1e18;

MIN_ORIGIN_PCT

Minimum allowed percentage (99%) for origin amount comparisons.

uint256 internal constant MIN_ORIGIN_PCT = WEI - MAX_ORIGIN_PCT_DIFF;

MAX_ORIGIN_PCT

Maximum allowed percentage (101%) for origin amount comparisons.

uint256 internal constant MAX_ORIGIN_PCT = WEI + MAX_ORIGIN_PCT_DIFF;

Functions

bridgeWithInterception

Bridges tokens with automatic destination amount adjustment based on actual sent amount. For ERC20 tokens: Requires token approval to this contract (not FastBridge). For ETH: Send the desired ETH amount via msg.value. Will revert if amounts differ by more than 1% or an invalid token is provided.

Handles token transfers/approvals and forwards calls to FastBridge with adjusted destination amounts.

function bridgeWithInterception(
    IFastBridge.BridgeParams memory params,
    InterceptorParams memory interceptorParams
)
    external
    payable;

Parameters