Firebase Authentication Cloud Service for RESTful API Security on Employee Presence System

Authentication is essential in identifying users to access or use the system. One application of the Authentication process is the Presence System. The old Presence System at Amigo Company is prone to misuse and data manipulation, so it is necessary to develop a new Presence System based on Smartphones. Data communication between Back-end and Front-end architecture in Presence System using RESTful API. This study aims to implement security on the RESTful API by using JSON Web Token generated by Firebase Authentication Cloud Service. The results of the study indicate that the user cannot manipulate data or use the identity of another user because of Firebase Authentication security and the strict data verification process.