Hey there!
I can do this using selenium and python.
Selenium is an web driver used for browser automation.
My script will make the browser will open whatsapp web and wait for you to scan the QR code to open your account.
Once it opens it will scan through all available contacts and send message to all of them.
I will design a GUI to enter this message.
My skills & experience:
-- 2.5 years of experience in web scraping and automation using web scraping.
-- Built over 49 web scraping tools till date ( 6 on freelancer.com, please check reviews )
-- Can bypass captchas and scrape content out of websites with dynamic content generated using
AJAX and JS.
-- Worked for Infosys ( a multinational company ) as Automation Engineer.
-- Websites i have developed a scraping tool for include Linkedin, Facebook, Gmail, Youtube, Tinder, Okcupid, Outlook and many more.
Looking forward to work with you.
Thank you, have a nice day!