Function serve_axum 

pub async fn serve_axum<S>(
    port: u16,
    state: S,
    modules: OptionalModules,
    max_connections: Option<usize>,
) -> Result<()>
where
    S: RewardApi + AvailabilityApi + HotShotAvailabilityApi + BlockStateApi + FeeStateApi + StatusApi + ConfigApi + NodeApi + CatchupApi + SubmitApi + StateSignatureApi + LightClientApi + ExplorerApi + TokenApi + DatabaseApi + StatusService + TokenService + NodeService + ConfigService + DatabaseService + AvailabilityService + MerklizedStateService + RewardStateService + StateSignatureService + SubmitService + ExplorerService + CatchupService + LightClientService + Send + Sync + 'static,

Start Axum HTTP server with combined v1 and v2 APIs

This serves both APIs at /v1/* and /v2/* from a single state implementation.

catchup, like the query-service modules (status, availability, node, token, block-state, fee-state, reward-state, database) and v2, is always on: tide-disco’s SQL mode registered it unconditionally. light-client is always on too, since peers fetch missing data from it. submit, config, and explorer follow Options, matching Options::init_with_query_module_sql, and v2’s gated services follow the same flag as their v1 module.