Separate auth rpc and rpc modules building

[emhane]

Describe the feature

Separate rpc server building and auth rpc server building in build_with_auth_server, using builder pattern.

reth/crates/rpc/rpc-builder/src/lib.rs

Lines 452 to 483 in e90b526

	/// Configures all [`RpcModule`]s specific to the given [`TransportRpcModuleConfig`] which can
	/// be used to start the transport server(s).
	///
	/// This behaves exactly as [`RpcModuleBuilder::build`] for the [`TransportRpcModules`], but
	/// also configures the auth (engine api) server, which exposes a subset of the `eth_`
	/// namespace.
	pub fn build_with_auth_server<EngineApi, EngineT>(
	self,
	module_config: TransportRpcModuleConfig,
	engine: EngineApi,
	) -> (
	TransportRpcModules,
	AuthRpcModule,
	RethModuleRegistry<Provider, Pool, Network, Tasks, Events, EvmConfig>,
	)
	where
	EngineT: EngineTypes + 'static,
	EngineApi: EngineApiServer<EngineT>,
	{
	let Self { provider, pool, network, executor, events, evm_config } = self;
	let config = module_config.config.clone().unwrap_or_default();
	let mut registry =
	RethModuleRegistry::new(provider, pool, network, executor, events, config, evm_config);
	let modules = registry.create_transport_rpc_modules(module_config);
	let auth_module = registry.create_auth_module(engine);
	(modules, auth_module, registry)
	}

Blocked by #8985

Additional context

No response

Tasks

Preview Give feedback

1. Promote Rpc to a node component #10769
   A-rpc A-sdk S-needs-design +3
2. Add EngineApiBuilder to RpcAddons #13831
   A-op-reth A-rpc A-sdk C-debt +4
   

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