with Le Wagon Tokyo https://www.lewagon.com/tokyo

1. Web scraping
with Ruby
@LeWagonTokyo

2. Web scraping with Ruby
Understanding HTML DOM
Uunderstanding Ruby
Happy scraping!

3. Today’s repository
https://github.com/hidehiro98/ruby-
scraping

4. Workshop outline
1. Set up
Setting tools up
2. Theoretical intros
Basic concepts to understand
3. Build with me
Step by step
4. Try your own scraping
Enjoy it ; )

5. 1. Let’s set up

6. Setup
https://www.gitpod.io/#https://
github.com/hidehiro98/ruby-scraping

7. 2. Theoritical intro about
Web scraping

8. When do we need web
scraping?
You want information, but no API for
that.

9. What's a web scraper?
Web scraping is data scraping used
for extracting data from websites.
- Wikipedia

10. What's an HTML DOM?

11. We will use the OpenURI
and the Nokogiri

12. 3. Let’s build

13. Install the Nokogiri
$ gem install nokogiri

14. 4. Scrape any website with
live code

15. 5. Scrape any website by
yourself!

16. If you want to scrape
dynamic website
https://readysteadycode.com/howto-
scrape-websites-with-ruby-and-
headless-chrome

17. Go further
lewagon.com/tokyo
@LeWagonTokyo

18. Thank you!
@LeWagonTokyo