* Attestation superstruct changes for EIP 7549 (#5644)
* update
* experiment
* superstruct changes
* revert
* superstruct changes
* fix tests
* indexed attestation
* indexed attestation superstruct
* updated TODOs
* `superstruct` the `AttesterSlashing` (#5636)
* `superstruct` Attester Fork Variants
* Push a little further
* Deal with Encode / Decode of AttesterSlashing
* not so sure about this..
* Stop Encode/Decode Bounds from Propagating Out
* Tons of Changes..
* More Conversions to AttestationRef
* Add AsReference trait (#15)
* Add AsReference trait
* Fix some snafus
* Got it Compiling! :D
* Got Tests Building
* Get beacon chain tests compiling
---------
Co-authored-by: Michael Sproul <micsproul@gmail.com>
* Merge remote-tracking branch 'upstream/unstable' into electra_attestation_changes
* Make EF Tests Fork-Agnostic (#5713)
* Finish EF Test Fork Agnostic (#5714)
* Superstruct `AggregateAndProof` (#5715)
* Upgrade `superstruct` to `0.8.0`
* superstruct `AggregateAndProof`
* Merge remote-tracking branch 'sigp/unstable' into electra_attestation_changes
* cargo fmt
* Merge pull request #5726 from realbigsean/electra_attestation_changes
Merge unstable into Electra attestation changes
* process withdrawals updates
* cleanup withdrawals processing
* update `process_operations` deposit length check
* add apply_deposit changes
* add execution layer withdrawal request processing
* process deposit receipts
* add consolidation processing
* update process operations function
* exit updates
* clean up
* update slash_validator
* EIP7549 `get_attestation_indices` (#5657)
* get attesting indices electra impl
* fmt
* get tests to pass
* fmt
* fix some beacon chain tests
* fmt
* fix slasher test
* fmt got me again
* fix more tests
* fix tests
* Some small changes (#5739)
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* cargo fmt (#5740)
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* fix attestation verification
* Add new engine api methods
* Fix the versioning of v4 requests
* Handle new engine api methods in mock EL
* Note todo
* Fix todos
* Add support for electra fields in getPayloadBodies
* Add comments for potential versioning confusion
* udpates for aggregate attestation endpoint
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Sketch op pool changes
* fix get attesting indices (#5742)
* fix get attesting indices
* better errors
* fix compile
* only get committee index once
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Ef test fixes (#5753)
* attestation related ef test fixes
* delete commented out stuff
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Fix Aggregation Pool for Electra (#5754)
* Fix Aggregation Pool for Electra
* Remove Outdated Interface
* fix ssz (#5755)
* Get `electra_op_pool` up to date (#5756)
* fix get attesting indices (#5742)
* fix get attesting indices
* better errors
* fix compile
* only get committee index once
* Ef test fixes (#5753)
* attestation related ef test fixes
* delete commented out stuff
* Fix Aggregation Pool for Electra (#5754)
* Fix Aggregation Pool for Electra
* Remove Outdated Interface
* fix ssz (#5755)
---------
Co-authored-by: realbigsean <sean@sigmaprime.io>
* Revert "Get `electra_op_pool` up to date (#5756)" (#5757)
This reverts commit ab9e58aa3d.
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into electra_op_pool
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Compute on chain aggregate impl (#5752)
* add compute_on_chain_agg impl to op pool changes
* fmt
* get op pool tests to pass
* update beacon api aggregate attestationendpoint
* update the naive agg pool interface (#5760)
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* updates after merge
* Fix bugs in cross-committee aggregation
* Add comment to max cover optimisation
* Fix assert
* Electra epoch processing
* add deposit limit for old deposit queue
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Merge pull request #5749 from sigp/electra_op_pool
Optimise Electra op pool aggregation
* don't fail on empty consolidations
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* update committee offset
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* update committee offset
* update committee offset
* update committee offset
* only increment the state deposit index on old deposit flow
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* use correct max eb in epoch cache initialization
* drop initiate validator ordering optimization
* fix initiate exit for single pass
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* accept new payload v4 in mock el
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Fix Electra Fork Choice Tests (#5764)
* Fix Electra Fork Choice Tests (#5764)
* Fix Electra Fork Choice Tests (#5764)
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Fix Consolidation Sigs & Withdrawals
* Merge pull request #5766 from ethDreamer/two_fixes
Fix Consolidation Sigs & Withdrawals
* Merge branches 'block-processing-electra' and 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Send unagg attestation based on fork
* Fix ser/de
* Merge branch 'electra-engine-api' into beacon-api-electra
* Subscribe to the correct subnets for electra attestations (#5782)
* subscribe to the correct att subnets for electra
* subscribe to the correct att subnets for electra
* cargo fmt
* Subscribe to the correct subnets for electra attestations (#5782)
* subscribe to the correct att subnets for electra
* subscribe to the correct att subnets for electra
* cargo fmt
* Subscribe to the correct subnets for electra attestations (#5782)
* subscribe to the correct att subnets for electra
* subscribe to the correct att subnets for electra
* cargo fmt
* Subscribe to the correct subnets for electra attestations (#5782)
* subscribe to the correct att subnets for electra
* subscribe to the correct att subnets for electra
* cargo fmt
* Subscribe to the correct subnets for electra attestations (#5782)
* subscribe to the correct att subnets for electra
* subscribe to the correct att subnets for electra
* cargo fmt
* update electra readiness with new endpoints
* fix slashing handling
* Fix Bug In Block Processing with 0x02 Credentials
* Merge remote-tracking branch 'upstream/unstable'
* Send unagg attestation based on fork
* Publish all aggregates
* just one more check bro plz..
* Merge pull request #5832 from ethDreamer/electra_attestation_changes_merge_unstable
Merge `unstable` into `electra_attestation_changes`
* Merge pull request #5835 from realbigsean/fix-validator-logic
Fix validator logic
* Merge pull request #5816 from realbigsean/electra-attestation-slashing-handling
Electra slashing handling
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* fix: serde rename camle case for execution payload body (#5846)
* Merge branch 'electra-engine-api' into beacon-api-electra
* Electra attestation changes rm decode impl (#5856)
* Remove Crappy Decode impl for Attestation
* Remove Inefficient Attestation Decode impl
* Implement Schema Upgrade / Downgrade
* Update beacon_node/beacon_chain/src/schema_change/migration_schema_v20.rs
Co-authored-by: Michael Sproul <micsproul@gmail.com>
---------
Co-authored-by: Michael Sproul <micsproul@gmail.com>
* Fix failing attestation tests and misc electra attestation cleanup (#5810)
* - get attestation related beacon chain tests to pass
- observed attestations are now keyed off of data + committee index
- rename op pool attestationref to compactattestationref
- remove unwraps in agg pool and use options instead
- cherry pick some changes from ef-tests-electra
* cargo fmt
* fix failing test
* Revert dockerfile changes
* make committee_index return option
* function args shouldnt be a ref to attestation ref
* fmt
* fix dup imports
---------
Co-authored-by: realbigsean <seananderson33@GMAIL.com>
* fix some todos (#5817)
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra_attestation_changes
* add consolidations to merkle calc for inclusion proof
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Remove Duplicate KZG Commitment Merkle Proof Code (#5874)
* Remove Duplicate KZG Commitment Merkle Proof Code
* s/tree_lists/fields/
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra_attestation_changes
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* fix compile
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Fix slasher tests (#5906)
* Fix electra tests
* Add electra attestations to double vote tests
* Update superstruct to 0.8
* Merge remote-tracking branch 'origin/unstable' into electra_attestation_changes
* Small cleanup in slasher tests
* Clean up Electra observed aggregates (#5929)
* Use consistent key in observed_attestations
* Remove unwraps from observed aggregates
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra_attestation_changes
* De-dup attestation constructor logic
* Remove unwraps in Attestation construction
* Dedup match_attestation_data
* Remove outdated TODO
* Use ForkName Ord in fork-choice tests
* Use ForkName Ord in BeaconBlockBody
* Make to_electra not fallible
* Remove TestRandom impl for IndexedAttestation
* Remove IndexedAttestation faulty Decode impl
* Drop TestRandom impl
* Add PendingAttestationInElectra
* Indexed att on disk (#35)
* indexed att on disk
* fix lints
* Update slasher/src/migrate.rs
Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>
---------
Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>
Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>
* add electra fork enabled fn to ForkName impl (#36)
* add electra fork enabled fn to ForkName impl
* remove inadvertent file
* Update common/eth2/src/types.rs
Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>
* Dedup attestation constructor logic in attester cache
* Use if let Ok for committee_bits
* Dedup Attestation constructor code
* Diff reduction in tests
* Fix beacon_chain tests
* Diff reduction
* Use Ord for ForkName in pubsub
* Resolve into_attestation_and_indices todo
* Remove stale TODO
* Fix beacon_chain tests
* Test spec invariant
* Use electra_enabled in pubsub
* Remove get_indexed_attestation_from_signed_aggregate
* Use ok_or instead of if let else
* committees are sorted
* remove dup method `get_indexed_attestation_from_committees`
* Merge pull request #5940 from dapplion/electra_attestation_changes_lionreview
Electra attestations #5712 review
* update default persisted op pool deserialization
* ensure aggregate and proof uses serde untagged on ref
* Fork aware ssz static attestation tests
* Electra attestation changes from Lions review (#5971)
* dedup/cleanup and remove unneeded hashset use
* remove irrelevant TODOs
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra_attestation_changes
* Merge branch 'electra_attestation_changes' of https://github.com/sigp/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* Fix Compilation Break
* Merge pull request #5973 from ethDreamer/beacon-api-electra
Fix Compilation Break
* Electra attestation changes sean review (#5972)
* instantiate empty bitlist in unreachable code
* clean up error conversion
* fork enabled bool cleanup
* remove a couple todos
* return bools instead of options in `aggregate` and use the result
* delete commented out code
* use map macros in simple transformations
* remove signers_disjoint_from
* get ef tests compiling
* get ef tests compiling
* update intentionally excluded files
* Avoid changing slasher schema for Electra
* Delete slasher schema v4
* Fix clippy
* Fix compilation of beacon_chain tests
* Update database.rs
* Update per_block_processing.rs
* Add electra lightclient types
* Update slasher/src/database.rs
* fix imports
* Merge pull request #5980 from dapplion/electra-lightclient
Add electra lightclient types
* Merge pull request #5975 from michaelsproul/electra-slasher-no-migration
Avoid changing slasher schema for Electra
* Update beacon_node/beacon_chain/src/attestation_verification.rs
* Update beacon_node/beacon_chain/src/attestation_verification.rs
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra_attestation_changes
* Merge branch 'electra_attestation_changes' of https://github.com/realbigsean/lighthouse into block-processing-electra
* Merge branch 'block-processing-electra' of https://github.com/sigp/lighthouse into electra-epoch-proc
* Merge branch 'electra-epoch-proc' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* The great renaming receipt -> request
* Address some more review comments
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra-engine-api
* Update beacon_node/beacon_chain/src/electra_readiness.rs
* Update consensus/types/src/chain_spec.rs
* update GET requests
* update POST requests
* add client updates and test updates
* Merge branch 'unstable' of https://github.com/sigp/lighthouse into electra-engine-api
* Merge branch 'electra-engine-api' of https://github.com/sigp/lighthouse into beacon-api-electra
* compile after merge
* unwrap -> unwrap_err
* self review
* fix tests
* convert op pool messages to electra in electra
* remove methods to post without content header
* filter instead of convert
* add get blobs unit test
* Use a multi_key_query for blob_sidecar indices
* Fix test
* Remove env_logger
---------
Co-authored-by: realbigsean <seananderson33@GMAIL.com>
* Changes to use required Endpoint
* Format
* fixed doppleganger service
* minor fix
* efficiency changes
* fixed tests
* remove commented line
---------
Co-authored-by: Jimmy Chen <jchen.tc@gmail.com>
* rebase and add comment
* conditional test
* test
* optimistic chould be working now
* finality should be working now
* try again
* try again
* clippy fix
* add lc bootstrap beacon api
* add lc optimistic/finality update to events
* fmt
* That error isn't occuring on my computer but I think this should fix it
* Add missing test file
* Update light client types to comply with Altair light client spec.
* Fix test compilation
* Support deserializing light client structures for the Bellatrix fork
* Move `get_light_client_bootstrap` logic to `BeaconChain`. `LightClientBootstrap` API to return `ForkVersionedResponse`.
* Misc fixes.
- log cleanup
- move http_api config mutation to `config::get_config` for consistency
- fix light client API responses
* Add light client bootstrap API test and fix existing ones.
* Fix test for `light-client-server` http api config.
* Appease clippy
* Efficiency improvement when retrieving beacon state.
---------
Co-authored-by: Jimmy Chen <jchen.tc@gmail.com>
## Issue Addressed
#4582
## Proposed Changes
Add a new v3 block fetching flow that can decide to return a Full OR Blinded payload
## Additional Info
Co-authored-by: Michael Sproul <micsproul@gmail.com>
## Issue Addressed
#4531
## Proposed Changes
add SSZ support to the following block production endpoints:
GET /eth/v2/validator/blocks/{slot}
GET /eth/v1/validator/blinded_blocks/{slot}
## Additional Info
i updated a few existing tests to use ssz instead of writing completely new tests
* Update comments and small cleanup.
* Deserialize into `SsePayloadAttributesV3` for Deneb fork. Update `SignedBlockContents::blobs_cloned` to return blobs for `BlindedBlockAndBlobSidecars`.
* Improve code readability and error handling when converting blinded block into full block.
* Update mock builder, mev-rs dependencies, eth2 lib to support deneb builder flow
* Replace `sharingForkTime` with `cancunTime`
* Patch `ethereum-consensus` to include some deneb-devnet-8 changes
* Add deneb builder test and fix block contents deserialization
* Fix builder bid encoding issue and passing deneb builder test \o/
* Fix test compilation
* Revert `cancunTime` change in genesis to pass doppelganger tests
* changed name
* Fix sidecars
* update get blobs endpoint name from blobs to blob_sidecars
---------
Co-authored-by: Rahul Dogra <rahulcooldogra@gmail.com>
## Issue Addressed
- #4293
- #4264
## Proposed Changes
*Changes largely follow those suggested in the main issue*.
- Add new routes to HTTP API
- `post_beacon_blocks_v2`
- `post_blinded_beacon_blocks_v2`
- Add new routes to `BeaconNodeHttpClient`
- `post_beacon_blocks_v2`
- `post_blinded_beacon_blocks_v2`
- Define new Eth2 common types
- `BroadcastValidation`, enum representing the level of validation to apply to blocks prior to broadcast
- `BroadcastValidationQuery`, the corresponding HTTP query string type for the above type
- ~~Define `_checked` variants of both `publish_block` and `publish_blinded_block` that enforce a validation level at a type level~~
- Add interactive tests to the `bn_http_api_tests` test target covering each validation level (to their own test module, `broadcast_validation_tests`)
- `beacon/blocks`
- `broadcast_validation=gossip`
- Invalid (400)
- Full Pass (200)
- Partial Pass (202)
- `broadcast_validation=consensus`
- Invalid (400)
- Only gossip (400)
- Only consensus pass (i.e., equivocates) (200)
- Full pass (200)
- `broadcast_validation=consensus_and_equivocation`
- Invalid (400)
- Invalid due to early equivocation (400)
- Only gossip (400)
- Only consensus (400)
- Pass (200)
- `beacon/blinded_blocks`
- `broadcast_validation=gossip`
- Invalid (400)
- Full Pass (200)
- Partial Pass (202)
- `broadcast_validation=consensus`
- Invalid (400)
- Only gossip (400)
- ~~Only consensus pass (i.e., equivocates) (200)~~
- Full pass (200)
- `broadcast_validation=consensus_and_equivocation`
- Invalid (400)
- Invalid due to early equivocation (400)
- Only gossip (400)
- Only consensus (400)
- Pass (200)
- Add a new trait, `IntoGossipVerifiedBlock`, which allows type-level guarantees to be made as to gossip validity
- Modify the structure of the `ObservedBlockProducers` cache from a `(slot, validator_index)` mapping to a `((slot, validator_index), block_root)` mapping
- Modify `ObservedBlockProducers::proposer_has_been_observed` to return a `SeenBlock` rather than a boolean on success
- Punish gossip peer (low) for submitting equivocating blocks
- Rename `BlockError::SlashablePublish` to `BlockError::SlashableProposal`
## Additional Info
This PR contains changes that directly modify how blocks are verified within the client. For more context, consult [comments in-thread](https://github.com/sigp/lighthouse/pull/4316#discussion_r1234724202).
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
## Issue Addressed
NA
## Proposed Changes
Implements the `PrettyReqwestError` to wrap a `reqwest::Error` and give nicer `Debug` formatting. It also wraps the `Url` component in a `SensitiveUrl` to avoid leaking sensitive info in logs.
### Before
```
Reqwest(reqwest::Error { kind: Request, url: Url { scheme: "http", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("localhost")), port: Some(9999), path: "/eth/v1/node/version", query: None, fragment: None }, source: hyper::Error(Connect, ConnectError("tcp connect error", Os { code: 61, kind: ConnectionRefused, message: "Connection refused" })) })
```
### After
```
HttpClient(url: http://localhost:9999/, kind: request, detail: error trying to connect: tcp connect error: Connection refused (os error 61))
```
## Additional Info
I've also renamed the `Reqwest` error enum variants to `HttpClient`, to give people a better chance at knowing what's going on. Reqwest is pretty odd and looks like a typo.
I've implemented it in the `eth2` and `execution_layer` crates. This should affect most logs in the VC and EE-related ones in the BN.
I think the last crate that could benefit from the is the `beacon_node/eth1` crate. I haven't updated it in this PR since its error type is not so amenable to it (everything goes into a `String`). I don't have a whole lot of time to jig around with that at the moment and I feel that this PR as it stands is a significant enough improvement to merge on its own. Leaving it as-is is fine for the time being and we can always come back for it later (or implement in-protocol deposits!).
Checkpointz now supports deposit snapshot but [they only support returning them in JSON](https://github.com/ethpandaops/checkpointz/issues/74) so I've modified lighthouse to request them in JSON by default.
There's also `get_opt` & `get_opt_with_timeout` methods which seem to expect responses in JSON but were not adding `Accept: application/json` to the request headers so I fixed that as well.
Also the beacon API puts quantities in quotes so I fixed that in the snapshot JSON serialization
## Issue Addressed
#4146
## Proposed Changes
Removes the `ExecutionOptimisticForkVersionedResponse` type and the associated Beacon API endpoint which is now deprecated. Also removes the test associated with the endpoint.
> This is currently a WIP and all features are subject to alteration or removal at any time.
## Overview
The successor to #2873.
Contains the backbone of `beacon.watch` including syncing code, the initial API, and several core database tables.
See `watch/README.md` for more information, requirements and usage.
## Issue Addressed
#3708
## Proposed Changes
- Add `is_finalized_block` method to `BeaconChain` in `beacon_node/beacon_chain/src/beacon_chain.rs`.
- Add `is_finalized_state` method to `BeaconChain` in `beacon_node/beacon_chain/src/beacon_chain.rs`.
- Add `fork_and_execution_optimistic_and_finalized` in `beacon_node/http_api/src/state_id.rs`.
- Add `ExecutionOptimisticFinalizedForkVersionedResponse` type in `consensus/types/src/fork_versioned_response.rs`.
- Add `execution_optimistic_finalized_fork_versioned_response`function in `beacon_node/http_api/src/version.rs`.
- Add `ExecutionOptimisticFinalizedResponse` type in `common/eth2/src/types.rs`.
- Add `add_execution_optimistic_finalized` method in `common/eth2/src/types.rs`.
- Update API response methods to include finalized.
- Remove `execution_optimistic_fork_versioned_response`
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
## Issue Addressed
Which issue # does this PR address?
https://github.com/sigp/lighthouse/issues/3669
## Proposed Changes
Please list or describe the changes introduced by this PR.
- A new API to fetch fork choice data, as specified [here](https://github.com/ethereum/beacon-APIs/pull/232)
- A new integration test to test the new API
## Additional Info
Please provide any additional information. For example, future considerations
or information useful for reviewers.
- `extra_data` field specified in the beacon-API spec is not implemented, please let me know if I should instead.
Co-authored-by: Michael Sproul <micsproul@gmail.com>
