that's kind of very different question. I should create a plugin that's accessible by an native App. So… I know that WordPress has it's API but is it possible to provide an (REST+JSON) API with a plugin?
The plugin does it's work in WordPress but datachange should be possible by App. Of course I could write some PHP code and put it to any place and access the database manually, but maybe offering an API is possible directly through the plugin.
So… Are there any ideas or suggestions what to do?