​
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

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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

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DuplicatedHeartbeat

Duplicated heartbeat. Namespace 
api.errors.imOnline.DuplicatedHeartbeat

​
InvalidKey

Non existent public key. Namespace 
api.errors.imOnline.InvalidKey

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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