Description: A token service is a technological solution that issues and manages tokens for authentication and authorization in APIs. These tokens are strings of characters that act as temporary credentials, allowing users to access specific resources without needing to share their user credentials, such as passwords. This approach enhances security by reducing the risk of exposing sensitive data. Token services often implement standards like OAuth 2.0 and JSON Web Tokens (JWT), which facilitate interoperability between different systems and applications. Additionally, they allow for permission management and granular access control, meaning that it is possible to define which resources a specific user can access and under what conditions. The ability to revoke tokens and set expiration times also contributes to greater security. In an environment where applications are increasingly distributed and communicate over networks, token services have become essential to ensure that only authorized users can access the data and functionalities of an API, thus optimizing user experience and system integrity.
