I am developing an Order and Pay App - Currently looking at using Stripe to handle payments, however I want to offer Google Pay - Stripe have a bit of documentation before sending you to the Google developers site. Its the old problem - its all Java and I am a bit lost as I use B4A.
There is no wrap for this Api as of now.
One need to write a wrapper using java. Or using b4a and javaobject. The last one requires a deeper java knowledge. But for both java knowledge is mantatory.
You can create a thread in the wish-forum or in the joboffer forum in case you want to hire someone who do the job for you.