jackwener/OpenCLI · error · CommandExecutionError

dongchedi ${contextHint} network error: ${err?.message || er

Error message

dongchedi ${contextHint} network error: ${err?.message || err}

What it means

A CommandExecutionError raised in dcdFetchPageProps (clis/dongchedi/utils.js:84) when the initial `fetch()` to www.dongchedi.com itself rejects — the request never got an HTTP response. The original error (DNS failure, connection reset, TLS problem, timeout) is wrapped with a `dongchedi <context> network error:` prefix identifying which command's fetch failed.

Source

Thrown at clis/dongchedi/utils.js:84

    return real.length === 0;
}

/**
 * Fetch a Dongchedi page and return its parsed `pageProps`.
 * Throws typed errors so callers can let them propagate.
 */
export async function dcdFetchPageProps(path, contextHint) {
    let resp;
    try {
        resp = await fetch(`${DCD_BASE}${path}`, {
            headers: {
                'User-Agent': UA,
                Referer: `${DCD_BASE}/`,
                'Accept-Language': 'zh-CN,zh;q=0.9',
            },
        });
    } catch (err) {
        throw new CommandExecutionError(
            `dongchedi ${contextHint} network error: ${err?.message || err}`,
        );
    }
    if (!resp.ok) {
        throw new CommandExecutionError(`dongchedi ${contextHint} HTTP ${resp.status}`);
    }
    const html = await resp.text();
    const pp = extractPageProps(html);
    if (!pp) {
        throw new CommandExecutionError(
            `dongchedi ${contextHint} returned no __NEXT_DATA__`,
            'Dongchedi likely changed its page structure, or the request hit an anti-bot page.',
        );
    }
    if (isFallbackShell(pp)) {
        throw new CommandExecutionError(
            `dongchedi ${contextHint}`,
            'Dongchedi served its empty fallback shell — the id may not exist or the URL form changed.',

View on GitHub (pinned to 49907e53dc)

Solutions

1. Verify basic connectivity: `curl -I https://www.dongchedi.com` from the same machine.
2. If behind a proxy, set HTTPS_PROXY/HTTP_PROXY environment variables (and ensure fetch honors them via undici's ProxyAgent or NODE_USE_ENV_PROXY).
3. Check DNS resolution of www.dongchedi.com (`nslookup www.dongchedi.com`).
4. Upgrade to Node >= 18 so global fetch exists, and ensure the system CA bundle is present for TLS.
5. Catch CommandExecutionError, read the wrapped message, and retry with backoff for transient network faults.

Example fix

// before (no proxy in CI)
await dcdFetchPageProps('/auto/series/4983', 'specs 4983');
// after
process.env.HTTPS_PROXY = 'http://proxy.corp:8080'; // or set it in the CI env
await dcdFetchPageProps('/auto/series/4983', 'specs 4983');

async function canReachDongchedi() {
  try { const r = await fetch('https://www.dongchedi.com/', { method: 'HEAD' }); return r.ok || r.status < 500; }
  catch { return false; }
}

async function fetchWithRetry(path, hint, tries = 3) {
  for (let i = 0; ; i++) {
    try { return await dcdFetchPageProps(path, hint); }
    catch (err) {
      const transient = /network error/.test(err.message);
      if (!transient || i >= tries - 1) throw err;
      await new Promise((r) => setTimeout(r, 2 ** i * 1000));
    }
  }
}

When it happens

Trigger: Any dongchedi command (search, specs, models, score, koubei, series) when the machine has no internet, DNS cannot resolve www.dongchedi.com, a proxy/firewall blocks the connection, TLS interception fails, or the Node runtime lacks a global fetch (Node < 18).

Common situations: Running the CLI in an offline CI container or corporate network requiring a proxy; VPN or GFW-related blocks on the ByteDance-hosted site; Docker images without CA certificates; older Node versions without native fetch.

Related errors

• coingecko derivatives request failed: ${err?.message ?? err}
• `${label} request failed: ${err?.message ?? err}`
• hf models request failed: ${error?.message || error}
• ${label} request failed: ${err?.message ?? err}. Check that
• ${label} request failed: ${err?.message ?? err}

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/d9da5f9791adee0b. Report an issue: GitHub.