Struct LaunchConfig 

pub struct LaunchConfig {
    pub drain_budget: Duration,
    pub request_timeout: Duration,
    pub max_in_flight: usize,
    pub max_body_bytes: usize,
    pub cache_max_entries: usize,
    pub cache_sweep_interval: Duration,
    pub ws_drain_deadline: Duration,
    pub cors: Option<CorsConfig>,
}

Tunables for the launch contract. Start from Default and adjust:

App::launch_configured::<AppModule>(addr, info, plugins, LaunchConfig {
    request_timeout: Duration::from_secs(10),
    max_in_flight: 4_096,
    cors: Some(CorsConfig::for_origins(["https://app.example.com"])),
    ..Default::default()
}).await

Fields

drain_budget: Duration

Per-plugin budget for on_shutdown / start-failure rollback (and the concurrent on_draining notification). A plugin exceeding it is skipped with a logged warning — it can never wedge the process. Default 5s.

request_timeout: Duration

Process-wide request deadline. Routes without #[Timeout] are cancelled (worker freed) and answered 504 past this. ZERO disables. Default 30s.

max_in_flight: usize

Hard cap on concurrent in-flight requests — beyond it requests are shed with 503 + Retry-After before any body is read (one atomic counter, no locks). 0 = unlimited. Default 0.

max_body_bytes: usize

Request body cap for every entry point. Default 8 MiB.

cache_max_entries: usize

Ceiling on #[CacheTTL] store entries — the key includes the query string, so an unbounded store is a memory-DoS vector. Default 10 000.

cache_sweep_interval: Duration

How often the cache sweeper reclaims expired entries. Default 30s.

ws_drain_deadline: Duration

After a shutdown signal, WebSocket clients get this long to finish before the server sends Close frames — otherwise live sockets keep the HTTP drain (and therefore plugin on_shutdown) waiting until the supervisor SIGKILLs. Default 10s.

cors: Option<CorsConfig>

CORS policy. None (default) mounts no CORS layer at all.

Trait Implementations

impl Clone for LaunchConfig

fn clone(&self) -> LaunchConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LaunchConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LaunchConfig

fn default() -> Self

Returns the “default value” for a type.