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WithLaunchContext

reth::builder

Struct WithLaunchContext 

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pub struct WithLaunchContext<Builder> { /* private fields */ }
Expand description

A NodeBuilder with its launch context already configured.

This exposes the same methods as NodeBuilder but with the launch context already configured, See WithLaunchContext::launch

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impl<Builder> WithLaunchContext<Builder>

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pub const fn task_executor(&self) -> &Runtime

Returns a reference to the task executor.

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impl<DB, ChainSpec> WithLaunchContext<NodeBuilder<DB, ChainSpec>>

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pub const fn config(&self) -> &NodeConfig<ChainSpec>

Returns a reference to the node builder’s config.

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pub const fn config_mut(&mut self) -> &mut NodeConfig<ChainSpec>

Returns a mutable reference to the node builder’s config.

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impl<DB, ChainSpec> WithLaunchContext<NodeBuilder<DB, ChainSpec>>
where DB: Database + DatabaseMetrics + Clone + Unpin + 'static, ChainSpec: EthChainSpec + EthereumHardforks,

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pub fn with_rocksdb_provider( self, rocksdb_provider: RocksDBProvider, ) -> WithLaunchContext<NodeBuilder<DB, ChainSpec>>

Sets the RocksDBProvider to use instead of creating one during launch.

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pub fn with_types<T>( self, ) -> WithLaunchContext<NodeBuilderWithTypes<FullNodeTypesAdapter<T, DB, BlockchainProvider<NodeTypesWithDBAdapter<T, DB>>>>>
where T: NodeTypesForProvider<ChainSpec = ChainSpec>,

Configures the types of the node.

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pub fn with_types_and_provider<T, P>( self, ) -> WithLaunchContext<NodeBuilderWithTypes<FullNodeTypesAdapter<T, DB, P>>>
where T: NodeTypesForProvider<ChainSpec = ChainSpec>, P: FullProvider<NodeTypesWithDBAdapter<T, DB>>,

Configures the types of the node and the provider type that will be used by the node.

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pub fn node<N>( self, node: N, ) -> WithLaunchContext<NodeBuilderWithComponents<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::ComponentsBuilder, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::AddOns>>
where N: Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, ChainSpec = ChainSpec> + NodeTypesForProvider,

Preconfigures the node with a specific node implementation.

This is a convenience method that sets the node’s types and components in one call.

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pub async fn launch_node<N>( self, node: N, ) -> Result<<EngineNodeLauncher as LaunchNode<NodeBuilderWithComponents<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::ComponentsBuilder, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::AddOns>>>::Node, Report>
where N: Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, ChainSpec = ChainSpec> + NodeTypesForProvider, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::AddOns: RethRpcAddOns<NodeAdapter<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, <<N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::ComponentsBuilder as NodeComponentsBuilder<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::Components>>, EngineNodeLauncher: LaunchNode<NodeBuilderWithComponents<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::ComponentsBuilder, <N as Node<FullNodeTypesAdapter<N, DB, BlockchainProvider<NodeTypesWithDBAdapter<N, DB>>>>>::AddOns>>,

Launches a preconfigured Node

This bootstraps the node internals, creates all the components with the given Node

Returns a NodeHandle that can be used to interact with the node.

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impl<T> WithLaunchContext<NodeBuilderWithTypes<T>>
where T: FullNodeTypes,

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pub fn with_components<CB>( self, components_builder: CB, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, ()>>
where CB: NodeComponentsBuilder<T>,

Advances the state of the node builder to the next state where all components are configured

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impl<T, CB> WithLaunchContext<NodeBuilderWithComponents<T, CB, ()>>
where T: FullNodeTypes, CB: NodeComponentsBuilder<T>,

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pub fn with_add_ons<AO>( self, add_ons: AO, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where AO: NodeAddOns<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>,

Advances the state of the node builder to the next state where all customizable NodeAddOns types are configured.

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impl<T, CB, AO> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where T: FullNodeTypes, CB: NodeComponentsBuilder<T>, AO: RethRpcAddOns<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>,

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pub const fn config( &self, ) -> &NodeConfig<<<T as FullNodeTypes>::Types as NodeTypes>::ChainSpec>

Returns a reference to the node builder’s config.

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pub const fn config_mut( &mut self, ) -> &mut NodeConfig<<<T as FullNodeTypes>::Types as NodeTypes>::ChainSpec>

Returns a mutable reference to the node builder’s config.

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pub const fn db(&self) -> &<T as FullNodeTypes>::DB

Returns a reference to node’s database.

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pub const fn db_mut(&mut self) -> &mut <T as FullNodeTypes>::DB

Returns a mutable reference to node’s database.

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pub fn try_apply<F, R>( self, f: F, ) -> Result<WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>, R>
where F: FnOnce(WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>) -> Result<WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>, R>,

Applies a fallible function to the builder.

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pub fn try_apply_if<F, R>( self, cond: bool, f: F, ) -> Result<WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>, R>
where F: FnOnce(WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>) -> Result<WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>, R>,

Applies a fallible function to the builder, if the condition is true.

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pub fn apply<F>( self, f: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>,

Apply a function to the builder

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pub fn apply_if<F>( self, cond: bool, f: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>,

Apply a function to the builder, if the condition is true.

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pub fn on_component_initialized<F>( self, hook: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>) -> Result<(), Report> + Send + 'static,

Sets the hook that is run once the node’s components are initialized.

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pub fn on_node_started<F>( self, hook: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(FullNode<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>, AO>) -> Result<(), Report> + Send + 'static,

Sets the hook that is run once the node has started.

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pub fn map_add_ons<F>( self, f: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(AO) -> AO,

Modifies the addons with the given closure.

This method provides access to methods on the addons type that don’t have direct builder methods. It’s useful for advanced configuration scenarios where you need to call addon-specific methods.

§Examples
ⓘ
use tower::layer::util::Identity;

let builder = NodeBuilder::new(config)
    .with_types::<EthereumNode>()
    .with_components(EthereumNode::components())
    .with_add_ons(EthereumAddOns::default())
    .map_add_ons(|addons| addons.with_rpc_middleware(Identity::default()));
§See also
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pub fn on_rpc_started<F>( self, hook: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(RpcContext<'_, NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>, <AO as RethRpcAddOns<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>>::EthApi>, RethRpcServerHandles) -> Result<(), Report> + Send + 'static,

Sets the hook that is run once the rpc server is started.

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pub fn extend_rpc_modules<F>( self, hook: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(RpcContext<'_, NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>, <AO as RethRpcAddOns<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>>::EthApi>) -> Result<(), Report> + Send + 'static,

Sets the hook that is run to configure the rpc modules.

This hook can obtain the node’s components (txpool, provider, etc.) and can modify the modules that the RPC server installs.

§Examples
ⓘ
use jsonrpsee::{core::RpcResult, proc_macros::rpc};

#[derive(Clone)]
struct CustomApi<Pool> { pool: Pool }

#[rpc(server, namespace = "custom")]
impl CustomApi {
    #[method(name = "hello")]
    async fn hello(&self) -> RpcResult<String> {
        Ok("World".to_string())
    }
}

let node = NodeBuilder::new(config)
    .node(EthereumNode::default())
    .extend_rpc_modules(|ctx| {
        // Access node components, so they can used by the CustomApi
        let pool = ctx.pool().clone();

        // Add custom RPC namespace
        ctx.modules.merge_configured(CustomApi { pool }.into_rpc())?;

        Ok(())
    })
    .build()?;
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pub fn install_exex<F, R, E>( self, exex_id: impl Into<String>, exex: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(ExExContext<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>) -> R + Send + 'static, R: Future<Output = Result<E, Report>> + Send, E: Future<Output = Result<(), Report>> + Send,

Installs an ExEx (Execution Extension) in the node.

§Note

The ExEx ID must be unique.

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pub fn install_exex_if<F, R, E>( self, cond: bool, exex_id: impl Into<String>, exex: F, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>
where F: FnOnce(ExExContext<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>) -> R + Send + 'static, R: Future<Output = Result<E, Report>> + Send, E: Future<Output = Result<(), Report>> + Send,

Installs an ExEx (Execution Extension) in the node if the condition is true.

§Note

The ExEx ID must be unique.

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pub async fn launch_with<L>( self, launcher: L, ) -> Result<<L as LaunchNode<NodeBuilderWithComponents<T, CB, AO>>>::Node, Report>
where L: LaunchNode<NodeBuilderWithComponents<T, CB, AO>>,

Launches the node with the given launcher.

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pub fn launch_with_fn<L, R>(self, launcher: L) -> R
where L: FnOnce(WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>) -> R,

Launches the node with the given closure.

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pub const fn check_launch( self, ) -> WithLaunchContext<NodeBuilderWithComponents<T, CB, AO>>

Check that the builder can be launched

This is useful when writing tests to ensure that the builder is configured correctly.

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pub async fn launch( self, ) -> Result<<EngineNodeLauncher as LaunchNode<NodeBuilderWithComponents<T, CB, AO>>>::Node, Report>
where EngineNodeLauncher: LaunchNode<NodeBuilderWithComponents<T, CB, AO>>,

Launches the node with the EngineNodeLauncher that sets up engine API consensus and rpc

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pub fn launch_with_debug_capabilities( self, ) -> <DebugNodeLauncher as LaunchNode<NodeBuilderWithComponents<T, CB, AO>>>::Future
where <T as FullNodeTypes>::Types: DebugNode<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>, DebugNodeLauncher: LaunchNode<NodeBuilderWithComponents<T, CB, AO>>,

Launches the node with the DebugNodeLauncher.

This is equivalent to WithLaunchContext::launch, but will enable the debugging features, if they are configured.

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pub fn launch_with_debug_capabilities_and_backfill<B>( self, backfill: B, ) -> <DebugNodeLauncher<EngineNodeLauncher<B>> as LaunchNode<NodeBuilderWithComponents<T, CB, AO>>>::Future
where <T as FullNodeTypes>::Types: DebugNode<NodeAdapter<T, <CB as NodeComponentsBuilder<T>>::Components>>, DebugNodeLauncher<EngineNodeLauncher<B>>: LaunchNode<NodeBuilderWithComponents<T, CB, AO>>,

Launches the node with the DebugNodeLauncher, with the engine’s backfill built by backfill instead of the staged pipeline.

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pub fn engine_api_launcher(&self) -> EngineNodeLauncher

Returns an EngineNodeLauncher that can be used to launch the node with engine API support.

Auto Trait Implementations§

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impl<Builder> !RefUnwindSafe for WithLaunchContext<Builder>

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impl<Builder> !UnwindSafe for WithLaunchContext<Builder>

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impl<Builder> Freeze for WithLaunchContext<Builder>
where Builder: Freeze,

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impl<Builder> Send for WithLaunchContext<Builder>
where Builder: Send,

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impl<Builder> Sync for WithLaunchContext<Builder>
where Builder: Sync,

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impl<Builder> Unpin for WithLaunchContext<Builder>
where Builder: Unpin,

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impl<Builder> UnsafeUnpin for WithLaunchContext<Builder>
where Builder: UnsafeUnpin,

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Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.