I'm not very experienced at web development, but I'd like to know how the following is accomplished. I haven't been able to find specific info via google on this. I think web services are involved, but I'd like either an explanation of the specifics or a pointer to a tutorial or info about it. Please be gentle.
I'm using an application, let's say the 'whatsapp' messaging app, cuz that's where I last saw this behavior. I'm trading messages with a friend about, I don't know, Korean food. We start discussing restaurants and I remember there's this great Korean restaurant I know.
So I pop out to my browser, look up the restaurant's web page and open it. I then copy the URL for the restaurant's web page from the address box.
Now I go back to whatsapp and write a text message like "Oh hey, you might want to check out this restaurant, it's really good " and paste in the URL. Now in my send box in whatsapp I see:
"Oh hey, you might want to check out this restaurant, it's really good <URL>" and I hit send.
In my whatsapp interface, the message I just sent is put up in the main display where I can see the 'conversation', but here instead of seeing "Oh hey, you might want to check out this restaurant, it's really good <URL>" I see "Oh hey, you might want to check out this restaurant, it's really good followed by what appears to be content from the actual web page, including photos, etc.