Calling methods through JSON-RPC

In this recipe, we will learn how to invoke a custom method of the model through JSON-RPC. We will change the status of the book by calling the make_available() method.

Getting ready

We will create the Python program to call make_available on the library.book model. Make sure you have installed the my_library module and that the server is running on http://localhost:8069.

How to do it...

Perform the following steps to create, write, and update a book's information through RPC:

1. Add the jsonrpc_method.py file. You can place this file anywhere you want because the RPC program will work independently.
2. Add the following code to the file:

   # place authentication and get_json_payload method (see last recipe for more)
   if user_id:
       # Create the book in draft state
       payload = get_json_payload("object", "execute_kw",
           db_name...