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From the creators of devRant, Pipeless lets you power real-time personalized recommendations and activity feeds using a simple APILearn More
unless you're in asia there are very few sensible usecases for those data patches. The few are, business cards and 2 factor authentication. For marketing? Don't! Very few take the hassle to take out the phone out of the pocket, open an app, scan the qr code, accept that you will be taken to a unkown website.
So to answer your question look for chinese QR software.
@heyheni showing a qr code from your screen to a reader is a common use case outside China, and actually convenient. For example, to show a ticket you've purchased or an item you want to buy.
But I agree with you, scanning a code to land on a web page is more inconvenient than just typing the url.
@yellow-dog yes i ficking read their fucking website.
But i fucking asked about a fucking library so i can use it in my backend without any third party api.
I fuckig feel it is not a very "complicated" library and surprised i dont find it in fucking open fucking source.
But maybe id fucking have to fucking write the fucking code my fucking self !