Which HTTP header option is used to pass session unique identifiers to the web API?

The HTTP header option used to pass session unique identifiers to the web API is X-chkp-sid. This header is specific to Check Point products and is utilized to maintain session continuity by sending the session identifier (SID) along with API requests. The significance of using this header lies in its role in authenticating sessions, allowing the server to recognize and manage client requests effectively.

The use of X-chkp-sid is vital in scenarios where ongoing interaction with the API is needed, ensuring that each request is linked to the correct session, which enhances security and usability. Effective session management is essential in API communications to prevent unauthorized actions and maintain a seamless user experience.

Other header options such as Accept-Charset, Proxy-Authorization, and Application do not serve this purpose. Accept-Charset is used for defining the character sets that are acceptable by the client, Proxy-Authorization handles authentication credentials for accessing a proxy server, and Application is not a standard HTTP header associated with session identifiers. Instead, these headers focus on other aspects of the request and don't provide a means to uniquely identify a session in API interactions.