Very Basic Question - Convert a legacy application into a REST API.

[RK K]

The application does not use any data base, all data is in the memory.

The application is a server process ( daemon ) running al the time.

Existing Functions :

 - Query for an entry of element (GET)

- Request to add an entry (POST)

Currently these functions are implemented as scripts, that accessible locally on the server-host or by remote ( using SSH/Ansible calls)

Question: Is it possible to convert the above functions into a REST API ( Note: The orginal server do not have any database or model)

Any hints/KBs would be highly appreciated.

Thank you

RK