Crate reth_rpc_builder

Configure reth RPC.

This crate contains several builder and config types that allow to configure the selection of RethRpcModule specific to transports (ws, http, ipc).

The RpcModuleBuilder is the main entrypoint for configuring all reth modules. It takes instances of components required to start the servers, such as provider impls, network and transaction pool. RpcModuleBuilder::build returns a TransportRpcModules which contains the transport specific config (what APIs are available via this transport).

The RpcServerConfig is used to assemble and start the http server, ws server, ipc servers, it requires the TransportRpcModules so it can start the servers with the configured modules.

Examples

Configure only an http server with a selection of RethRpcModules

use reth_evm::ConfigureEvm;
use reth_network_api::{NetworkInfo, Peers};
use reth_provider::{AccountReader, CanonStateSubscriptions, ChangeSetReader, FullRpcProvider};
use reth_rpc::EthApi;
use reth_rpc_builder::{
    RethRpcModule, RpcModuleBuilder, RpcServerConfig, ServerBuilder, TransportRpcModuleConfig,
};
use reth_tasks::TokioTaskExecutor;
use reth_transaction_pool::TransactionPool;

pub async fn launch<Provider, Pool, Network, Events, EvmConfig>(
    provider: Provider,
    pool: Pool,
    network: Network,
    events: Events,
    evm_config: EvmConfig,
) where
    Provider: FullRpcProvider + AccountReader + ChangeSetReader,
    Pool: TransactionPool + 'static,
    Network: NetworkInfo + Peers + Clone + 'static,
    Events: CanonStateSubscriptions + Clone + 'static,
    EvmConfig: ConfigureEvm,
{
    // configure the rpc module per transport
    let transports = TransportRpcModuleConfig::default().with_http(vec![
        RethRpcModule::Admin,
        RethRpcModule::Debug,
        RethRpcModule::Eth,
        RethRpcModule::Web3,
    ]);
    let transport_modules = RpcModuleBuilder::new(
        provider,
        pool,
        network,
        TokioTaskExecutor::default(),
        events,
        evm_config,
    )
    .build(transports, Box::new(EthApi::with_spawner));
    let handle = RpcServerConfig::default()
        .with_http(ServerBuilder::default())
        .start(&transport_modules)
        .await;
}

Configure a http and ws server with a separate auth server that handles the engine_ API

use reth_engine_primitives::EngineTypes;
use reth_evm::ConfigureEvm;
use reth_network_api::{NetworkInfo, Peers};
use reth_provider::{AccountReader, CanonStateSubscriptions, ChangeSetReader, FullRpcProvider};
use reth_rpc::EthApi;
use reth_rpc_api::EngineApiServer;
use reth_rpc_builder::{
    auth::AuthServerConfig, RethRpcModule, RpcModuleBuilder, RpcServerConfig,
    TransportRpcModuleConfig,
};
use reth_rpc_layer::JwtSecret;
use reth_tasks::TokioTaskExecutor;
use reth_transaction_pool::TransactionPool;
use tokio::try_join;
pub async fn launch<Provider, Pool, Network, Events, EngineApi, EngineT, EvmConfig>(
    provider: Provider,
    pool: Pool,
    network: Network,
    events: Events,
    engine_api: EngineApi,
    evm_config: EvmConfig,
) where
    Provider: FullRpcProvider + AccountReader + ChangeSetReader,
    Pool: TransactionPool + 'static,
    Network: NetworkInfo + Peers + Clone + 'static,
    Events: CanonStateSubscriptions + Clone + 'static,
    EngineApi: EngineApiServer<EngineT>,
    EngineT: EngineTypes,
    EvmConfig: ConfigureEvm,
{
    // configure the rpc module per transport
    let transports = TransportRpcModuleConfig::default().with_http(vec![
        RethRpcModule::Admin,
        RethRpcModule::Debug,
        RethRpcModule::Eth,
        RethRpcModule::Web3,
    ]);
    let builder = RpcModuleBuilder::new(
        provider,
        pool,
        network,
        TokioTaskExecutor::default(),
        events,
        evm_config,
    );

    // configure the server modules
    let (modules, auth_module, _registry) =
        builder.build_with_auth_server(transports, engine_api, Box::new(EthApi::with_spawner));

    // start the servers
    let auth_config = AuthServerConfig::builder(JwtSecret::random()).build();
    let config = RpcServerConfig::default();

    let (_rpc_handle, _auth_handle) =
        try_join!(config.start(&modules), auth_module.start_server(auth_config),).unwrap();
}

Re-exports

• pub use eth::EthHandlers;

Modules

• auth
  Auth server utilities.
• config
  RPC server utilities.
• constants
  Common RPC constants.
• error
  Rpc error utilities.
• eth
  Eth utils

Structs

• Identity
  A no-op middleware.
• IpcRpcServiceBuilder
  Similar to [tower::ServiceBuilder] but doesn’t support any tower middleware implementations.
• IpcServerBuilder
  Builder to configure and create a JSON-RPC server
• MeteredRequestFuture
  Response future to update the metrics for a single request/response pair.
• RpcModuleBuilder
  A builder type to configure the RPC module: See [RpcModule]
• RpcModuleConfig
  Bundles settings for modules
• RpcModuleConfigBuilder
  Configures RpcModuleConfig
• RpcRegistryInner
  A Helper type the holds instances of the configured modules.
• RpcRequestMetricsService
  A [RpcServiceT] middleware that captures RPC metrics for the server.
• RpcServerConfig
  A builder type for configuring and launching the servers that will handle RPC requests.
• RpcServerHandle
  A handle to the spawned servers.
• ServerBuilder
  Builder to configure and create a JSON-RPC server
• Stack
  Two middlewares chained together.
• TransportRpcModuleConfig
  Holds modules to be installed per transport type
• TransportRpcModules
  Holds installed modules per transport type.

Enums

• CorsDomainError
  Error thrown when parsing cors domains went wrong
• RethRpcModule
  Represents RPC modules that are supported by reth
• RpcModuleSelection
  Describes the modules that should be installed.

Functions

• launch
  Convenience function for starting a server in one step.