Struct AppOptions 

pub struct AppOptions {
    pub allow_labels: Option<bool>,
    pub in_memory: bool,
    pub metrics_enabled: bool,
}

Options consumed by app_with_options. Fields default to the same values app derives from the environment; tests construct an explicit value to bypass the env-var read.

Fields

allow_labels: Option<bool>

Override for MNEM_BENCH. None means “read the env var”; set to Some(true) in integration tests that exercise the label round-trip without polluting the process-wide environment.

in_memory: bool

When true, use MemoryBlockstore + MemoryOpHeadsStore instead of the redb-backed on-disk store. All commits live in RAM and are lost on process exit. Intended for benchmark harnesses and ephemeral agent sessions where durability is undesired and commit throughput matters (redb fsync can be 30-40x slower than memory per commit; see internal benchmarking). Never enable this in a deployment that needs to survive restart.

metrics_enabled: bool

Mount the /metrics Prometheus endpoint.

true mounts the route; false omits it entirely (scrapes get a 404). The tracking middleware that populates the counters still runs either way – flipping this on at the next restart begins exposing already-collected data.

Trait Implementations

impl Clone for AppOptions

fn clone(&self) -> AppOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppOptions

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

Formats the value using the given formatter.

impl Default for AppOptions

fn default() -> AppOptions

Returns the “default value” for a type.