vapor/vapor 4.28.0

Server shutdown improvements

on GitHub

This patch was authored and released by @tanner0101.

Adds support for gracefully shutting down in-flight requests and idle keep-alive connections (#2472, fixes #2451).

• In-flight requests will no longer respect connection: keep-alive after server shutdown is initiated.
• Idle keep-alive connections will now be closed once server shutdown is initiated.
• Adds new HTTPHeaders helper for working with connection header.

// Change to 'connection: close'.
if req.headers.connection == .keepAlive {
    req.headers.connection = .close
}