@deeeed/hyperliquid-node20/esm/src/polyfills.js

Unofficial Hyperliquid API SDK for all major JS runtimes, written in TypeScript. Fork with Node.js 20.18.0+ compatibility.

// Polyfills for Node.js 20.18.0+ compatibility
// Polyfill for Promise.withResolvers() (Node.js 22+)
export function withResolvers() {
    let resolve;
    let reject;
    const promise = new Promise((res, rej) => {
        resolve = res;
        reject = rej;
    });
    return { promise, resolve, reject };
}
// Polyfill for AbortSignal.timeout() (Node.js 22+)
export function abortTimeout(delay) {
    if (AbortSignal.timeout) {
        return AbortSignal.timeout(delay);
    }
    const controller = new AbortController();
    setTimeout(() => controller.abort(), delay);
    return controller.signal;
}
// Polyfill for AbortSignal.any() (Node.js 22+)
export function abortAny(signals) {
    if (AbortSignal.any) {
        return AbortSignal.any(signals);
    }
    const controller = new AbortController();
    const onAbort = () => controller.abort();
    for (const signal of signals) {
        if (signal.aborted) {
            controller.abort();
            break;
        }
        signal.addEventListener('abort', onAbort, { once: true });
    }
    return controller.signal;
}