Trait Injectable 

pub trait Injectable:
    Send
    + Sync
    + 'static {
    // Required method
    fn construct(registry: &ProviderRegistry) -> Arc<Self> ;

    // Provided methods
    fn scope() -> ProviderScope { ... }
    fn on_module_init<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
    fn on_module_destroy<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
    fn on_application_bootstrap<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
    fn on_before_application_shutdown<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
    fn on_application_shutdown<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait { ... }
}

Application service or provider type constructed through the DI container.

construct is synchronous. Perform async I/O in Self::on_module_init or after you have an Arc<Self> from the registry. Lifecycle hooks run for singleton providers when the framework drives ProviderRegistry::run_on_module_init and related methods (see NestFactory / listen).

Scopes: override Self::scope via #[injectable(scope = "...")].

Docs: mdBook Fundamentals (docs/src/fundamentals.md).

Required Methods

fn construct(registry: &ProviderRegistry) -> Arc<Self>

Provided Methods

fn scope() -> ProviderScope

Provider scope used when the module registers this type.

fn on_module_init<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

fn on_module_destroy<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

fn on_application_bootstrap<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

fn on_before_application_shutdown<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

NestJS beforeApplicationShutdown: fires before on_application_shutdown / on_module_destroy during graceful shutdown. Use to flush caches, close long-lived connections, or release resources while dependents are still alive.

fn on_application_shutdown<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Injectable for WorkflowsService

impl<O, M> Injectable for ModuleOptions<O, M>

where O: Send + Sync + 'static, M: 'static,