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Reorg events (#2090)

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## Issue Addressed

Resolves #2088

## Proposed Changes

Add the `chain_reorg` SSE event topic

## Additional Info


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
This commit is contained in:
realbigsean
2021-06-17 02:10:46 +00:00
parent 3261eff0bf
commit b1657a60e9
10 changed files with 412 additions and 9 deletions
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20
common/eth2/src/types.rs
View File

@@ -689,6 +689,18 @@ pub struct SseHead {
pub epoch_transition: bool,
}
#[derive(PartialEq, Debug, Serialize, Deserialize, Clone)]
pub struct SseChainReorg {
pub slot: Slot,
#[serde(with = "serde_utils::quoted_u64")]
pub depth: u64,
pub old_head_block: Hash256,
pub old_head_state: Hash256,
pub new_head_block: Hash256,
pub new_head_state: Hash256,
pub epoch: Epoch,
}
#[derive(PartialEq, Debug, Serialize, Clone)]
#[serde(bound = "T: EthSpec", untagged)]
pub enum EventKind<T: EthSpec> {
@@ -697,6 +709,7 @@ pub enum EventKind<T: EthSpec> {
FinalizedCheckpoint(SseFinalizedCheckpoint),
Head(SseHead),
VoluntaryExit(SignedVoluntaryExit),
ChainReorg(SseChainReorg),
}
impl<T: EthSpec> EventKind<T> {
@@ -707,6 +720,7 @@ impl<T: EthSpec> EventKind<T> {
EventKind::Attestation(_) => "attestation",
EventKind::VoluntaryExit(_) => "voluntary_exit",
EventKind::FinalizedCheckpoint(_) => "finalized_checkpoint",
EventKind::ChainReorg(_) => "chain_reorg",
}
}
@@ -735,6 +749,9 @@ impl<T: EthSpec> EventKind<T> {
"block" => Ok(EventKind::Block(serde_json::from_str(data).map_err(
|e| ServerError::InvalidServerSentEvent(format!("Block: {:?}", e)),
)?)),
"chain_reorg" => Ok(EventKind::ChainReorg(serde_json::from_str(data).map_err(
|e| ServerError::InvalidServerSentEvent(format!("Chain Reorg: {:?}", e)),
)?)),
"finalized_checkpoint" => Ok(EventKind::FinalizedCheckpoint(
serde_json::from_str(data).map_err(|e| {
ServerError::InvalidServerSentEvent(format!("Finalized Checkpoint: {:?}", e))
@@ -768,6 +785,7 @@ pub enum EventTopic {
Attestation,
VoluntaryExit,
FinalizedCheckpoint,
ChainReorg,
}
impl FromStr for EventTopic {
@@ -780,6 +798,7 @@ impl FromStr for EventTopic {
"attestation" => Ok(EventTopic::Attestation),
"voluntary_exit" => Ok(EventTopic::VoluntaryExit),
"finalized_checkpoint" => Ok(EventTopic::FinalizedCheckpoint),
"chain_reorg" => Ok(EventTopic::ChainReorg),
_ => Err("event topic cannot be parsed.".to_string()),
}
}
@@ -793,6 +812,7 @@ impl fmt::Display for EventTopic {
EventTopic::Attestation => write!(f, "attestation"),
EventTopic::VoluntaryExit => write!(f, "voluntary_exit"),
EventTopic::FinalizedCheckpoint => write!(f, "finalized_checkpoint"),
EventTopic::ChainReorg => write!(f, "chain_reorg"),
}
}
}