zng::task::http::header

Constant RETRY_AFTER

source 
pub const RETRY_AFTER: HeaderName;
Expand description

The Retry-After response HTTP header indicates how long the user agent should wait before making a follow-up request. There are two main cases this header is used:

  • When sent with a 503 (Service Unavailable) response, it indicates how long the service is expected to be unavailable.

  • When sent with a redirect response, such as 301 (Moved Permanently), it indicates the minimum time that the user agent is asked to wait before issuing the redirected request.