@wormhole-foundation/sdk-connect/dist/esm/routes/common.js

The core package for the Connect SDK, used in conjunction with 1 or more of the chain packages

import { isFinalizable, isManual } from "./route.js";
import { TransferState, isAttested, isCompleted, isRedeemed } from "../types.js";
/**
 * track the transfer until the destination is initiated
 *
 * @param route The route that can be used to track the receipt
 * @param receipt The receipt to track
 * @param destinationSigner The signer for the destination chain if
 */
export async function checkAndCompleteTransfer(route, receipt, destinationSigner, timeout = 120 * 1000, 
// byo logger but im dumping to console rn 🙃
log = console.log) {
    const start = Date.now();
    log("Checking transfer state...");
    // overwrite receipt var as we receive updates, will return when it's complete
    // but can be called again if the destination is not finalized
    // this construct is to drain an async generator and return the last value
    for await (receipt of route.track(receipt, 120 * 1000)) {
        log("Current Transfer State: ", TransferState[receipt.state]);
    }
    // gucci
    if (isCompleted(receipt))
        return receipt;
    // if the route is one we need to complete, do it
    if (isManual(route) && isAttested(receipt) && destinationSigner) {
        log("Completing transfer...");
        const completedTxids = await route.complete(destinationSigner, receipt);
        log("Completed transfer with txids: ", completedTxids);
    }
    // if the route is one we need to finalize, do it
    if (isFinalizable(route) && isRedeemed(receipt) && destinationSigner) {
        log("Finalizing transfer...");
        const completedTxids = await route.finalize(destinationSigner, receipt);
        log("Finalized transfer with txids: ", completedTxids);
    }
    const leftover = timeout - (Date.now() - start);
    // do we still have time?
    if (leftover > 0) {
        // give it a second, computers need to rest sometimes
        const wait = 2 * 1000;
        log(`Transfer not complete, trying again in a ${wait}ms...`);
        await new Promise((resolve) => setTimeout(resolve, wait));
        return checkAndCompleteTransfer(route, receipt, destinationSigner, leftover);
    }
    return receipt;
}
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