SuspiciousLookingOwl
commented
4 years ago Cannot read property 'id' of undefined means results[0] is undefined, which most likely means results is empty.
This is actually a known issue where sometimes it successfully retrieve DOM from youtube search, but doesn't have any search result (even though it supposed to have the search result) and will return empty array. Still trying to figure out how to make .search() always have the search result.
Best thing you can do right now is to check whether the result is empty or not, if it's empty, try to .search() again, something like this will do
const maxRetryCount = 3;
var retryCount = 1;
var results = [];
while(results.length == 0 && retryCount < maxRetryCount){
results = await scrapeYoutube.search(artist + title);
retryCount++;
}
if (results.length == 0) return false //No search result found
var videoId = results[0].id;
KareemH
Hello again, just want to let you know that after a few test runs, it seems as if the ads are filtered out now. Thank you so much for this fix!
I mentioned earlier that I get an "UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'id' of undefined at addSong"
addSong is basically my function when I take the video id and store it onto my MongoDB database. Like I mentioned before, I loop through another npm module about billboard music chart data, and then call addSong
addSong does something like this:
This is really a simple call to your module using the name of the artist and title of the songs as the keyword search query. However, the await makes the code behave synchronously, waiting for the videoId to come back as a resolved Promise. However, as shown previously, I get this:
So, I am able to populate my database with 216 video ids when I made 220 calls in reality. On average, 10 videos ids may be missing so that means 10 Promises weren't resolved and I'm 10 songs short at times. Is this an issue involving the way you may have structured your Promise code? Or are my function calls to excessive and can't handle the asynchronous behavior? (I plan on making these function calls every Sunday, not every day, so max 220 calls a week).
Thanks for the swift modifications and cooperation. I hope you can figure something out :)