ReSTful API (Representational State Transfer)

CRUD (Create, Read, Update, Destroy) => HTTP Methods {GET, POST, PUT, OPTIONS...}

Employee Management Server (JSON API)

CRUD      Action        HTTP Method         URI             Req Body            Resp Body
-------------------------------------------------------------------------------------------
Read      Index         GET              /employees            -                 [{...}, ...]
Read      Show          GET              /employees/{id}       -                  {...}
Create    Create        POST             /employees           {...}               {id: , ...}
Update    Update        PUT              /employees/{id}      {...}               {...}
Update    Update        PATCH            /employees/{id}      some attrs          {...} / -
Destroy   Delete        DELETE           /employees/{id}       -                  - / {...}