offchain_worker

Documentation

Index

• Constants
• type Module
  • func New(executive executive.Module, logger log.RuntimeLogger) Module
  • func (m Module) Item() types.ApiItem
  • func (m Module) Metadata() primitives.RuntimeApiMetadata
  • func (m Module) Name() string
  • func (m Module) OffchainWorker(dataPtr int32, dataLen int32)

Constants

const (
	ApiModuleName = "OffchainWorkerApi"
)

Types

type Module

type Module struct {
	// contains filtered or unexported fields
}

Module implements the OffchainWorkerApi Runtime API definition.

For more information about API definition, see: https://spec.polkadot.network/chap-runtime-api#sect-runtime-offchainapi-module

func New

func New(executive executive.Module, logger log.RuntimeLogger) Module

func (Module) Item

func (m Module) Item() types.ApiItem

Item returns the first 8 bytes of the Blake2b hash of the name and version of the api module.

func (Module) Metadata

func (m Module) Metadata() primitives.RuntimeApiMetadata

Metadata returns the runtime api metadata of the module.

func (Module) Name

func (m Module) Name() string

Name returns the name of the api module.

func (Module) OffchainWorker

func (m Module) OffchainWorker(dataPtr int32, dataLen int32)

OffchainWorker starts an off-chain task for an imported block. It takes two arguments: - dataPtr: Pointer to the data in the Wasm memory. - dataLen: Length of the data. which represent the SCALE-encoded header of the block.

For more information about function definition, see: https://spec.polkadot.network/chap-runtime-api#id-offchainworkerapi_offchain_worker