Gateway enforcement
Making every access decision at the single entry point that all requests pass through, instead of in each service behind it. ZopNight's gateway checks sign-in, role permissions, write tier and token scope there, so a request that is not allowed never reaches the service. Why it matters: One check point cannot be forgotten by a new service, so access rules stay consistent.
Read the term in context.
Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.