How would an administrator retrieve the access token to use the Zscaler One API?

Zscaler OneAPI uses OAuth-style token acquisition through ZIdentity. The administrator or automation client sends a POST request with required parameters such as client credentials to the ZIdentity token endpoint, then uses the returned access token for API calls. Option A (The administrator needs to send a POST request along with the required parameters to ZIdentity"s token endpoint) is correct because token retrieval is performed by POSTing to the ZIdentity token endpoint.

Why the other options are incorrect:

B. The administrator needs to send a GET request along with the required parameters to ZIdentity's token endpoint: A GET request retrieves resources; it is not used to submit client credentials to the OAuth token endpoint.

C. The administrator needs to logon to the ZIA portal to generate the access token with Super Admin role: The ZIA portal manages Internet Access policy and service configuration, not the unified identity or OneAPI token endpoint workflow unless the stem says so.

D. The administrator needs to logon to the ZIA portal to generate the access token with API Admin role: The ZIA portal manages Internet Access policy and service configuration, not the unified identity or OneAPI token endpoint workflow unless the stem says so.