January 2019
Beginner
132 pages
3h 14m
English
Content preview from Go Web Scraping Quick Start Guide
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Scraping with Concurrency
As you begin to add more and more target websites into your scraping requirements, you will eventually hit a point where you wish you could make more calls, faster. In a single program, the crawl delay might add extra time to your scraper, adding unnecessary time to process the other sites. Do you see the problem in the following diagram?
If these two sites could be run in parallel, there would not be any interference. Maybe the time to access and parse a page is longer than the crawl delay for this website, and launching a second request before the processing of the first response completes could save you time as ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.