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ImOnline

Calls​

heartbeat​

Namespace​

api.tx.imOnline.heartbeat

Type​

function heartbeat(
  heartbeat: PalletImOnlineHeartbeat,
  signature: PalletImOnlineSr25519AppSr25519Signature
)

Storage​

authoredBlocks​

For each session index, we keep a mapping of ValidatorId<T> to the number of blocks authored by the given authority.

Namespace​

api.query.imOnline.authoredBlocks

Type​

function authoredBlocks(
  u32,
  SeedPrimitivesSignatureAccountId20
): u32

heartbeatAfter​

The block number after which it's ok to send heartbeats in the current session.

At the beginning of each session we set this to a value that should fall roughly in the middle of the session duration. The idea is to first wait for the validators to produce a block in the current session, so that the heartbeat later on will not be necessary.

This value will only be used as a fallback if we fail to get a proper session progress estimate from NextSessionRotation, as those estimates should be more accurate then the value we calculate for HeartbeatAfter.

Namespace​

api.query.imOnline.heartbeatAfter

Type​

function heartbeatAfter(

): u32

keys​

The current set of keys that may issue a heartbeat.

Namespace​

api.query.imOnline.keys

Type​

function keys(

): Vec<PalletImOnlineSr25519AppSr25519Public>

receivedHeartbeats​

For each session index, we keep a mapping of SessionIndex and AuthIndex to WrapperOpaque<BoundedOpaqueNetworkState>.

Namespace​

api.query.imOnline.receivedHeartbeats

Type​

function receivedHeartbeats(
  u32,
  u32
): Option<WrapperOpaque<PalletImOnlineBoundedOpaqueNetworkState>>

Events​

AllGood​

At the end of the session, no offence was committed.

Namespace​

api.events.imOnline.AllGood

Type​

type AllGood = {

}

HeartbeatReceived​

A new heartbeat was received from AuthorityId.

Namespace​

api.events.imOnline.HeartbeatReceived

Type​

type HeartbeatReceived = {
  authority_id: PalletImOnlineSr25519AppSr25519Public
}

SomeOffline​

At the end of the session, at least one validator was found to be offline.

Namespace​

api.events.imOnline.SomeOffline

Type​

type SomeOffline = {
  offline: Vec<(SeedPrimitivesSignatureAccountId20,PalletStakingExposure)>
}

Errors​

DuplicatedHeartbeat​

Duplicated heartbeat.

Namespace​

api.errors.imOnline.DuplicatedHeartbeat

InvalidKey​

Non existent public key.

Namespace​

api.errors.imOnline.InvalidKey

Constants​

unsignedPriority​

A configuration for base priority of unsigned transactions.

This is exposed so that it can be tuned for particular runtime, when multiple pallets send unsigned transactions.

Namespace​

api.consts.imOnline.unsignedPriority

Type​

type unsignedPriority = u64