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Server sent events (#1920)

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## Issue Addressed

Resolves #1434 (this is the last major feature in the standard spec. There are only a couple of places we may be off-spec due to recent spec changes or ongoing discussion)
Partly addresses #1669
 
## Proposed Changes

- remove the websocket server
- remove the `TeeEventHandler` and `NullEventHandler` 
- add server sent events according to the eth2 API spec

## Additional Info

This is according to the currently unmerged PR here: https://github.com/ethereum/eth2.0-APIs/pull/117


Co-authored-by: realbigsean <seananderson33@gmail.com>
This commit is contained in:
realbigsean
2020-12-04 00:18:58 +00:00
parent 2b5c0df9e5
commit fdfb81a74a
28 changed files with 969 additions and 766 deletions
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20
beacon_node/beacon_chain/src/test_utils.rs
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@@ -7,8 +7,8 @@ pub use crate::{
use crate::{
builder::{BeaconChainBuilder, Witness},
eth1_chain::CachingEth1Backend,
events::NullEventHandler,
BeaconChain, BeaconChainTypes, BlockError, ChainConfig, StateSkipConfig,
BeaconChain, BeaconChainTypes, BlockError, ChainConfig, ServerSentEventHandler,
StateSkipConfig,
};
use futures::channel::mpsc::Receiver;
use genesis::interop_genesis_state;
@@ -42,14 +42,8 @@ pub const HARNESS_GENESIS_TIME: u64 = 1_567_552_690;
// This parameter is required by a builder but not used because we use the `TestingSlotClock`.
pub const HARNESS_SLOT_TIME: Duration = Duration::from_secs(1);
pub type BaseHarnessType<TEthSpec, THotStore, TColdStore> = Witness<
TestingSlotClock,
CachingEth1Backend<TEthSpec>,
TEthSpec,
NullEventHandler<TEthSpec>,
THotStore,
TColdStore,
>;
pub type BaseHarnessType<TEthSpec, THotStore, TColdStore> =
Witness<TestingSlotClock, CachingEth1Backend<TEthSpec>, TEthSpec, THotStore, TColdStore>;
pub type DiskHarnessType<E> = BaseHarnessType<E, LevelDB<E>, LevelDB<E>>;
pub type EphemeralHarnessType<E> = BaseHarnessType<E, MemoryStore<E>, MemoryStore<E>>;
@@ -188,7 +182,7 @@ impl<E: EthSpec> BeaconChainHarness<EphemeralHarnessType<E>> {
let store = HotColdDB::open_ephemeral(store_config, spec.clone(), log.clone()).unwrap();
let chain = BeaconChainBuilder::new(eth_spec_instance)
.logger(log)
.logger(log.clone())
.custom_spec(spec.clone())
.store(Arc::new(store))
.store_migrator_config(MigratorConfig::default().blocking())
@@ -200,11 +194,11 @@ impl<E: EthSpec> BeaconChainHarness<EphemeralHarnessType<E>> {
.expect("should build state using recent genesis")
.dummy_eth1_backend()
.expect("should build dummy backend")
.null_event_handler()
.testing_slot_clock(HARNESS_SLOT_TIME)
.expect("should configure testing slot clock")
.shutdown_sender(shutdown_tx)
.chain_config(chain_config)
.event_handler(Some(ServerSentEventHandler::new_with_capacity(log, 1)))
.build()
.expect("should build");
@@ -246,7 +240,6 @@ impl<E: EthSpec> BeaconChainHarness<DiskHarnessType<E>> {
.expect("should build state using recent genesis")
.dummy_eth1_backend()
.expect("should build dummy backend")
.null_event_handler()
.testing_slot_clock(HARNESS_SLOT_TIME)
.expect("should configure testing slot clock")
.shutdown_sender(shutdown_tx)
@@ -288,7 +281,6 @@ impl<E: EthSpec> BeaconChainHarness<DiskHarnessType<E>> {
.expect("should resume beacon chain from db")
.dummy_eth1_backend()
.expect("should build dummy backend")
.null_event_handler()
.testing_slot_clock(Duration::from_secs(1))
.expect("should configure testing slot clock")
.shutdown_sender(shutdown_tx)