Module sc_client_api::client

A set of APIs supported by the client along with their primitives.

Structs

• BlockImportNotification
  Summary of an imported block
• ClientInfo
  Client info
• FinalityNotification
  Summary of a finalized block.
• IoInfo
  I/O statistics for client instance.
• MemoryInfo
  Memory statistics for client instance.
• MemorySize
  A wrapper to store the size of some memory.
• UsageInfo
  Usage statistics for running client instance.

Traits

• BlockBackend
  Interface for fetching block data.
• BlockOf
  Figure out the block type for a given type (for now, just a Client).
• BlockchainEvents
  A source of blockchain events.
• PreCommitActions
  Interface to perform auxiliary actions before committing a block import or finality operation.
• ProvideUncles
  Provide a list of potential uncle headers for a given block.

Type Definitions

• AuxDataOperations
  List of operations to be performed on storage aux data. First tuple element is the encoded data key. Second tuple element is the encoded optional data to write. If None, the key and the associated data are deleted from storage.
• BadBlocks
  Known bad block hashes.
• FinalityNotifications
  A stream of block finality notifications.
• ForkBlocks
  Expected hashes of blocks at given heights.
• ImportNotifications
  Type that implements futures::Stream of block import events.
• OnFinalityAction
  Callback invoked before committing the operations created during block finalization. This gives the opportunity to perform auxiliary pre-commit actions and optionally enqueue further storage write operations to be atomically performed on commit.
• OnImportAction
  Callback invoked before committing the operations created during block import. This gives the opportunity to perform auxiliary pre-commit actions and optionally enqueue further storage write operations to be atomically performed on commit.