Puppeteer

https://www.reddit.com/r/programming/comments/bhxeo9/automated_posting_on_subreddits_with_nodejs/

https://developers.google.com/web/tools/puppeteer/examples

https://medium.com/@e_mad_ehsan/getting-started-with-puppeteer-and-chrome-headless-for-web-scrapping-6bf5979dee3e

headless-chrome - getting started in ruby

headless-chrome

- Install Chrome 59 or later from google.com/chrome

- download chromedriver and put in a new folder called 'chromedriver'; so the path to the binary is similar to - /home/sai/chromedriver/chromedriver

- now we have to add the above binary's path to PATH 

-- Open the below file in nano editor

nano ~/.bash_profile
-- add the below line
PATH=$PATH:/home/sai/chromedriver export PATH

- gem install selenium-webdriver

- gem install chromedriver-helper

- Now we can start executing the scripts found in -  https://readysteadycode.com/howto-scrape-websites-with-ruby-and-headless-chrome

HOWTO scrape websites with Ruby & Headless Chrome

https://readysteadycode.com/howto-scrape-websites-with-ruby-and-headless-chrome

Web scraping is an approach for extracting data from websites that don’t have an API. This tutorial will show you how to scrape websites with Ruby and Headless Chrome, using Selenium WebDriver.

Getting Started with Headless Chrome, Data scraping with headless Chrome

Getting Started with Headless Chrome
https://developers.google.com/web/updates/2017/04/headless-chrome

Data scraping with headless Chrome:
https://riston.github.io/post/headless-chrome-scrape/