Sharing link on WhatsApp from mobile website and not application for Android

Question

I want to allow users in my website to share information directly from the web page into WhatsApp.

Using UserAgent detection I can distinguish between Android and iOS.
i discovered that I can use the URL:

href="whatsapp://send?text=http://www.example.com"

I'm still looking for the solution to be used when the OS is Android which is not working. any suggestion?

Answer 1

 the link is correct according to new documentation:

<a href="https://wa.me/?text=urlencodedtext">Share this</a>

If it doesn't work, try this one :

<a href="whatsapp://send?text=urlencodedtext">Share this</a>