One question I have is regarding socket timeout in NodeJs.
To address the issue, initially, I included the following code :
req.socket.once('timeout', function(err) {
imports.logger.warn('Express socket timeout.', err);
res.status(504).end('Connection timeout');
});
However, I continued to encounter Express Socket timeout errors being logged in the console long after the page had loaded. To aid in debugging, I decided to add this line :
req.socket.setTimeout(4000);
Surprisingly, all my requests were now handling an Express socket timeout after 4 seconds. Despite finding various information online, I am still struggling to fully grasp the concept.
My confusion lies in why the res.json() function, which closes the request, does not also close the socket. Could there be a connection with keep-alive or web sockets?
If the link pertains to web sockets, what would be the recommended practice? Should I manually close the socket and if so, where exactly should this be done?
If needed, you can refer to my simple Express route code below:
app.get(apiUrl + '/:id', function (req, res) {
NewsFeed.findById(req.params.id, function (err, newsFeed) {
if (err) {
return app.error(res, 404, 'Error 404: No news found');
}
res.json(formatNewsFeed(newsFeed));
});
});