Allow to switch root url to query2.finance.yahoo.com

[okomarov]

Feature Request

For context, I started getting EAI_AGAIN errors in production which imply DNS resolution issues. This Stack Overflow post suggests that to resolve/mitigate the issue we could try to switch over to query2.finance.yahoo.com instead of the usual query1.finance.yahoo.com.

The major difference is that query2 is HTTP/1.1 compatible which works better with proxies, e.g. Cloudflare.

Wanted Feature

A (global?) option which allows to select which root URL to use or to pass your own root.

[gadicc]

Thanks, agree, this will probably help me decide what to do finally with #109.

And I guess what what you said in mind, we should use query2 by default.

[gadicc]

P.S. In the meantime you could probably do something like the following (untested):

if (!yahooFinance._fetchOrig) {
  yahooFinance._fetchOrig = yahooFinance._fetch;
  yahooFinance._fetch = function proxyFetch(urlBase, ...args) {
    urlBase = urlBase.replace(/query1/, 'query2');
    return this._fetchOrig(urlBase, ...args);
  };
}

[gadicc]

This will be in our next release. There'll be an automated notice here when that happens.

[gadicc]

🎉 This issue has been resolved in version 2.3.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[gadicc]

As per https://github.com/gadicc/node-yahoo-finance2/blob/devel/docs/other/setGlobalConfig.md#options-not-documented-elsewhere, you can now:

yahoo-finance.setGlobalConfig({
  YF_QUERY_HOST: "query2.yahoo.finance.com" // default
});

or set the YF_QUERY_HOST environment variable.