While working on an assignment, we came across an urgent task from the customer where we need to fix a performance issue for the YouTube API integration.<\/p>\n\n\n\n
The Rails app we received had a YouTube integration using yt gem<\/a>, using which we need to search YouTube videos and fetch metadata – content details, statistics, status, id etc.<\/p>\n\n\n\n The current implementation was done in such a manner that it takes 12\u201315 seconds to search and find all metadata for 12 videos which is really huge time. We need to reduce this to the limits as per the standards such that it can fetch and render the results in 1\u20133 seconds at max!<\/p>\n\n\n\n Understand the path followed to identify the issue<\/p><\/blockquote>\n\n\n\n YT gem<\/a> is a ruby client for YouTube API, which is a wrapper around YouTube API. As per the documentation, they claim that it is better than the original google-api-ruby-client<\/a> because ruby client is more generic and YT has been coded better!<\/p>\n\n\n\n So the first step would be to setup the application, run it and reproduce the issue.<\/p>\n\n\n\n We found that when it throws the search API call, it usually taken 10\u201312 seconds because there are certain API calls which are sent for each video!<\/p>\n\n\n\n So, the flow is as following,<\/p>\n\n\n\n First of all, We went through the documentation of the YT gem and YouTube APIs and confirmed that what we are trying to fetch is supported by both of them.<\/p>\n\n\n\n We found that though the previous developer doubted that YT gem does not support fetching multiple videos in one API call, it is supported! Based on that we have to fix the code which is using the loop as of now and just make a single API call!<\/p>\n\n\n\n See the code below which has been fixed,What it YT Gem<\/a>?<\/h3>\n\n\n\n
Debug Debug Debug …<\/h3>\n\n\n\n
So, how to fix?<\/h3>\n\n\n\n