GET /2/region
Auth: User context — OAuth 2.0 (with broadcast.read scope) recommended, or OAuth 1.0a 3-legged. See Authentication.
Behavior
Sign and send the request to/2/region; it responds with HTTP 307 Temporary Redirect to a region-recommendation host. Follow the redirect and read region from the final body.
Auth across the redirect: Most HTTP clients drop the
Authorization header when a redirect crosses to a different host (standard, secure behavior). That is fine — only the initial /2/region request needs to be signed; the redirect target is public. Clients that follow redirects automatically work without special handling.