QR code generation in Event

I have created one afterCtreate() event and I want to generate QR code in the same event then update object again with uploaded qrcode file url

How do I do that?

You would need to write your own code (or use a library) that generates QR codes.

I am generating but which service I should use to send QR code to backendless?

Sorry, but I do not understand what you mean when you say “send QR code to backendless”.

I am generating QR code in format of File or Bitmatrix but sending file doesnt work, error says can not create temporary file and there’s no way to send BitMatrix to Backendless

Please explain what you mean by “sending to backendless”.

I got work around for QR code upload …
Dont worry.
and So thanx for reply.