Crate sc_service[−][src]

Substrate service. Starts a thread that spins up the network, client, and extrinsic pool. Manages communication between them.

Re-exports

`pub use self::error::Error;`
`pub use config::BasePath;`
`pub use config::Configuration;`
`pub use config::RpcMethods;`
`pub use config::TaskExecutor;`
`pub use config::TaskType;`

chain_ops	Chain utilities.
config	Service configuration.
error	Errors that can occur during the service operation.

BuildNetworkParams	Parameters to pass into `build_network`.
ClientConfig	Relevant client configuration items relevant for the client.
GenericChainSpec	A configuration of a chain. Can be used to build a genesis block.
KeystoreContainer	Construct and hold different layers of Keystore wrappers
LocalCallExecutor	Call executor that executes methods locally, querying all required data from local backend.
NetworkStarter	Object used to start the network.
NetworkStatusSinks	Sinks to propagate network status updates. For each element, every time the `Interval` fires we push an element on the sender.
NoopRpcExtensionBuilder	A utility struct for implementing an `RpcExtensionBuilder` given a cloneable `RpcExtension`, the resulting builder will simply ignore the provided `DenyUnsafe` instance and return a static `RpcExtension` instance.
PartialComponents	An incomplete set of chain components, but enough to run the chain ops subcommands.
RpcHandlers	RPC handlers that can perform RPC queries.
RpcMetadata	RPC Metadata.
RpcSession	An RPC session. Used to perform in-memory RPC queries (ie. RPC queries that don’t go through the HTTP or WebSockets server).
SpawnTaskHandle	An handle for spawning tasks in the service.
SpawnTasksParams	Parameters to pass into `build`.
TaskManager	Helper struct to manage background/async tasks in Service.
TransactionPoolAdapter	Transaction pool adapter.
TransactionPoolOptions	Pool configuration options.

ChainType	The type of a chain.
DatabaseConfig	Where to find the database..
KeepBlocks	Block pruning settings.
PruningMode	Pruning mode.
Role	Role of the local node.
TracingReceiver	Used to configure how to receive the metrics
TransactionStorageMode	Block body storage scheme.

ChainSpec	Common interface of a chain specification.
ChainSpecExtension	A collection of `ChainSpec` extensions.
ImportQueue	Blocks import queue API.
InPoolTransaction	In-pool transaction interface.
IntoPoolError	Transaction pool error conversion.
MallocSizeOfWasm	A type that implements `MallocSizeOf` on native but not wasm.
NativeExecutionDispatch	Delegate for dispatching a CodeExecutor call.
RpcExtensionBuilder	A utility trait for building an RPC extension given a `DenyUnsafe` instance. This is useful since at service definition time we don’t know whether the specific interface where the RPC extension will be exposed is safe or not. This trait allows us to lazily build the RPC extension whenever we bind the service to an interface.
RuntimeGenesis	A set of traits for the runtime genesis config.
TransactionPool	Transaction pool interface.

build_network	Build the network service, the network status sinks and an RPC sender.
build_offchain_workers	Build a shared offchain workers instance.
new_client	Create an instance of db-backed client.
new_full_client	Creates a new full client for the given config.
new_full_parts	Create the initial parts of a full node.
new_light_parts	Create the initial parts of a light node.
spawn_tasks	Spawn the tasks that are required to run a node.

NoExtension	A type denoting empty extensions.
Properties	Arbitrary properties defined in chain spec as a JSON object
TFullBackend	Full client backend type.
TFullCallExecutor	Full client call executor type.
TFullClient	Full client type.
TLightBackend	Light client backend type.
TLightBackendWithHash	Light client backend type with a specific hash type.
TLightCallExecutor	Light call executor type.
TLightClient	Light client type.
TLightClientWithBackend	Light client type with a specific backend.