Enum sc_rpc_spec_v2::chain_head::event::FollowEvent
source · pub enum FollowEvent<Hash> {
Initialized(Initialized<Hash>),
NewBlock(NewBlock<Hash>),
BestBlockChanged(BestBlockChanged<Hash>),
Finalized(Finalized<Hash>),
OperationBodyDone(OperationBodyDone),
OperationCallDone(OperationCallDone),
OperationStorageItems(OperationStorageItems),
OperationWaitingForContinue(OperationId),
OperationStorageDone(OperationId),
OperationInaccessible(OperationId),
OperationError(OperationError),
Stop,
}
Expand description
The event generated by the follow
method.
The block events are generated in the following order:
- Initialized - generated only once to signal the latest finalized block
- NewBlock - a new block was added.
- BestBlockChanged - indicate that the best block is now the one from this event. The block was
announced priorly with the
NewBlock
event. - Finalized - State the finalized and pruned blocks.
The following events are related to operations:
- OperationBodyDone: The response of the
chianHead_body
- OperationCallDone: The response of the
chianHead_call
- OperationStorageItems: Items produced by the
chianHead_storage
- OperationWaitingForContinue: Generated after OperationStorageItems and requires the user to
call
chainHead_continue
- OperationStorageDone: The
chianHead_storage
method has produced all the results - OperationInaccessible: The server was unable to provide the result, retries might succeed in the future
- OperationError: The server encountered an error, retries will not succeed
The stop event indicates that the JSON-RPC server was unable to provide a consistent list of the blocks at the head of the chain.
Variants§
Initialized(Initialized<Hash>)
The latest finalized block.
This event is generated only once.
NewBlock(NewBlock<Hash>)
A new non-finalized block was added.
BestBlockChanged(BestBlockChanged<Hash>)
The best block of the chain.
Finalized(Finalized<Hash>)
A list of finalized and pruned blocks.
OperationBodyDone(OperationBodyDone)
The response of the chainHead_body
method.
OperationCallDone(OperationCallDone)
The response of the chainHead_call
method.
OperationStorageItems(OperationStorageItems)
Yield one or more items found in the storage.
OperationWaitingForContinue(OperationId)
Ask the user to call chainHead_continue
to produce more events
regarding the operation id.
OperationStorageDone(OperationId)
The responses of the chainHead_storage
method have been produced.
OperationInaccessible(OperationId)
The RPC server was unable to provide the response of the following operation id.
Repeating the same operation in the future might succeed.
OperationError(OperationError)
The RPC server encountered an error while processing an operation id.
Repeating the same operation in the future will not succeed.
Stop
The subscription is dropped and no further events will be generated.
Trait Implementations§
source§impl<Hash: Clone> Clone for FollowEvent<Hash>
impl<Hash: Clone> Clone for FollowEvent<Hash>
source§fn clone(&self) -> FollowEvent<Hash>
fn clone(&self) -> FollowEvent<Hash>
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<Hash: Debug> Debug for FollowEvent<Hash>
impl<Hash: Debug> Debug for FollowEvent<Hash>
source§impl<'de, Hash> Deserialize<'de> for FollowEvent<Hash>where
Hash: Deserialize<'de>,
impl<'de, Hash> Deserialize<'de> for FollowEvent<Hash>where
Hash: Deserialize<'de>,
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
source§impl<Hash: PartialEq> PartialEq for FollowEvent<Hash>
impl<Hash: PartialEq> PartialEq for FollowEvent<Hash>
source§fn eq(&self, other: &FollowEvent<Hash>) -> bool
fn eq(&self, other: &FollowEvent<Hash>) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl<Hash> Serialize for FollowEvent<Hash>where
Hash: Serialize,
impl<Hash> Serialize for FollowEvent<Hash>where
Hash: Serialize,
impl<Hash> StructuralPartialEq for FollowEvent<Hash>
Auto Trait Implementations§
impl<Hash> RefUnwindSafe for FollowEvent<Hash>where
Hash: RefUnwindSafe,
impl<Hash> Send for FollowEvent<Hash>where
Hash: Send,
impl<Hash> Sync for FollowEvent<Hash>where
Hash: Sync,
impl<Hash> Unpin for FollowEvent<Hash>where
Hash: Unpin,
impl<Hash> UnwindSafe for FollowEvent<Hash>where
Hash: UnwindSafe,
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