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::RpcMethods;
• 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
  Relevant client configuration items relevant for the client.
• GenericChainSpec
  A configuration of a chain. Can be used to build a genesis block.
• GenesisBlockBuilder
  Default genesis block builder in Substrate.
• 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.
• 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
  RPC handlers that can perform 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 a chain.
• DatabaseSource
  Where to find the database..
• PruningMode
  Pruning mode.
• Role
  Role of the local node.
• TracingReceiver
  Used to configure how to receive the metrics

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.
• RpcSubscriptionIdProvider
  Trait to generate subscription IDs.
• RuntimeGenesis
  A set of traits for the runtime genesis config.
• TransactionPool
  Transaction pool interface.

Functions

• 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 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.
• resolve_state_version_from_wasm
  Return the genesis state version given the genesis storage and executor.
• spawn_tasks
  Spawn the tasks that are required to run a node.

Type Definitions

• 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.