Detailed API Docs?

Is there any detailed documentation on how to use the REST API?

The only document I found (https://akaunting.com/docs/developer-manual/restful-api) explains the authentication piece of it and the data format seems to be JSON from googling, but I'm looking specifically for a map of what API endpoints are available, what method should be used to send/get data for each, and what fields are accepted for each endpoint. 

My goal is to build a script to connect an existing work order system to Akaunting. These functions are the ones I'm primarily looking for:

• Create, modify, add payment, and get invoice


• Trigger emailing invoice to customer


• Create, modify, and get customer


• Create, modify, and get item

Does anyone have a link to such information beyond the single doc page I linked above?

Thanks in advance!

There is no other document but you can dive into the code here https://github.com/akaunting/akaunting/tree/master/app/Http/Controllers/Api

And then contribute to the docs https://github.com/akaunting/docs