Function service

If you need to run some long-running service in your app and Roadster doesn't provide built-in support for the specific service you need, you can implement AppService directly. This gives you the most control over the service, especially if you implement AppServiceBuilder as well.

If you don't want to implement AppService yourself, you can simply run the service in an async function and pass that function to a FunctionService.

fn build_app() -> RoadsterApp<AppContext> {
    RoadsterApp::builder()
        // Use the default `AppContext` for this example
        .state_provider(|context| Ok(context))
        // Register the example function-based service
        .add_service(
            FunctionService::builder()
                .name("example-service")
                .function(example_service)
                .build(),
        )
        .build()
}

async fn example_service(
    _state: AppContext,
    _cancel_token: CancellationToken,
) -> RoadsterResult<()> {
    info!("Running example function-based service");
    Ok(())
}

Docs.rs links

• FunctionService