@biconomy/sdk/dist/_esm/account/decorators/queryBridge.js

SDK for Biconomy integration with support for account abstraction, smart accounts, ERC-4337.

import { toAcrossPlugin } from "../utils/toAcrossPlugin.js";
/**
 * Queries a bridge operation to determine expected outcomes and fees
 *
 * @param params - {@link QueryBridgeParams} Configuration for the bridge query
 * @param params.fromChain - Source chain for the bridge operation
 * @param params.toChain - Destination chain for the bridge operation
 * @param params.plugin - Optional bridging plugin (defaults to Across)
 * @param params.amount - Amount to bridge in base units (wei)
 * @param params.account - Smart account to execute the bridging
 * @param params.tokenMapping - Token addresses across chains
 *
 * @returns Promise resolving to {@link BridgeQueryResult} or null if received amount cannot be determined
 *
 * @throws Error if bridge plugin does not return a received amount
 *
 * @example
 * const result = await queryBridge({
 *   fromChain: optimism,
 *   toChain: base,
 *   amount: BigInt("1000000"), // 1 USDC
 *   account: myMultichainAccount,
 *   tokenMapping: {
 *     deployments: [
 *       { chainId: 10, address: "0x123..." },
 *       { chainId: 8453, address: "0x456..." }
 *     ],
 *     on: (chainId) => deployments.find(d => d.chainId === chainId).address
 *   }
 * });
 *
 * if (result) {
 *   console.log(`Expected to receive: ${result.receivedAtDestination}`);
 *   console.log(`Expected duration: ${result.bridgingDurationExpectedMs}ms`);
 * }
 */
export const queryBridge = async (params) => {
    const { account, fromChain, toChain, plugin = toAcrossPlugin(), amount, tokenMapping } = params;
    const result = await plugin.encodeBridgeUserOp({
        fromChain,
        toChain,
        account,
        tokenMapping,
        bridgingAmount: amount
    });
    // Skip if bridge doesn't provide received amount
    if (!result.receivedAtDestination)
        return null;
    return {
        fromChainId: fromChain.id,
        amount,
        receivedAtDestination: result.receivedAtDestination,
        plugin,
        userOp: result.userOp,
        bridgingDurationExpectedMs: result.bridgingDurationExpectedMs
    };
};
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