Crate sc_service

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::TaskType;

Modules

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

Structs

• BuildNetworkParams
  Parameters to pass into build_network.
• ClientConfig
  Client configuration items.
• GenericChainSpec
  A configuration of a chain. Can be used to build a genesis block.
• GenesisBlockBuilder
  Default genesis block builder in Substrate.
• KeystoreContainer
  Construct a local keystore shareable container
• LocalCallExecutor
  Call executor that executes methods locally, querying all required data from local backend.
• MetricsService
  A MetricsService periodically sends general client and network state to the telemetry as well as (optionally) a Prometheus endpoint.
• NetworkStarter
  Object used to start the network.
• PartialComponents
  An incomplete set of chain components, but enough to run the chain ops subcommands.
• RandomIntegerSubscriptionId
  Generates random integers as subscription ID.
• RandomStringSubscriptionId
  Generates random strings of length len as subscription ID.
• RpcHandlers
  A running RPC service that can perform in-memory RPC queries.
• SpawnTaskHandle
  An handle for spawning tasks in the service.
• SpawnTasksParams
  Parameters to pass into build.
• Task
  Represents a running async task in the TaskManager.
• TaskManager
  Helper struct to manage background/async tasks in Service.
• TaskRegistry
  Keeps track of all running Tasks in TaskManager.
• TransactionPoolAdapter
  Transaction pool adapter.
• TransactionPoolOptions
  Pool configuration options.

Enums

• BlocksPruning
  Block pruning settings.
• ChainType
  The type of chain.
• DatabaseSource
  Where to find the database..
• PruningMode
  Pruning mode.
• Role
  Role of the local node.
• RpcMethods
  Available RPC methods.
• TracingReceiver
  Used to configure how to receive the metrics
• WarpSyncConfig
  Warp sync configuration as accepted by WarpSync.

Constants

• DEFAULT_GROUP_NAME
  Default task group name.

Traits

• BuildGenesisBlock
  Trait for building the genesis block.
• ChainSpec
  Common interface of a chain specification.
• ChainSpecExtension
  A collection of ChainSpec extensions.
• ImportQueue
• InPoolTransaction
  In-pool transaction interface.
• IntoPoolError
  Transaction pool error conversion.
• NativeExecutionDispatch
  Delegate for dispatching a CodeExecutor call.
• TransactionPool
  Transaction pool interface.

Functions

• build_network
  Build the network service, the network status sinks and an RPC sender.
• build_polkadot_syncing_strategy
  Build standard polkadot syncing strategy
• build_system_rpc_future
  Builds a future that processes system RPC requests.
• construct_genesis_block
  Create a genesis block, given the initial storage.
• gen_rpc_module
  Generate RPC module using provided configuration
• init_telemetry
  Initialize telemetry with provided configuration and return telemetry handle
• new_client
  Create an instance of client backed by given backend.
• new_db_backend
  Create an instance of default DB-backend backend.
• new_full_client
  Creates a new full client for the given config.
• new_full_parts
  Create the initial parts of a full node with the default genesis block builder.
• new_full_parts_record_import
  Create the initial parts of a full node with the default genesis block builder.
• new_full_parts_with_genesis_builder
  Create the initial parts of a full node.
• new_native_or_wasm_executorDeprecated
  Creates a NativeElseWasmExecutor according to Configuration.
• new_wasm_executor
  Creates a WasmExecutor according to ExecutorConfiguration.
• propagate_transaction_notifications
  Returns a future that forwards imported transactions to the transaction networking protocol.
• resolve_state_version_from_wasm
  Return the state version given the genesis storage and executor.
• spawn_tasks
  Spawn the tasks that are required to run a node.
• start_rpc_servers
  Starts RPC servers.

Type Aliases

• 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.