Hey guys!
I’ve made demo project like social platform as an example of Data Transactions usage. You can check it out here:
https://demo.wavesplatform.com/twitter
There is also an article about the project:
https://medium.com/@ikardanov/decentralized-social-platform-why-what-and-how-c471b5f7d42
Besides, on https://demo.wavesplatform.com/ you can find examples of code for Payment API, Web Auth API, and JS console.
The project is open source, so welcome to contribute. I will be glad to see your ideas.