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attributes publisher #4

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merged 29 commits into from
Aug 14, 2024
Merged

attributes publisher #4

merged 29 commits into from
Aug 14, 2024

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jinmel
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@jinmel jinmel commented Jul 1, 2024

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@dmarzzz dmarzzz left a comment

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should this be behind a flag?

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dmarzzz commented Jul 6, 2024

also can we make sure we match L1 payload attribute SSE stream as closely as possible? ethereum/beacon-APIs#244

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This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

@github-actions github-actions bot added the Stale label Jul 31, 2024
@github-actions github-actions bot removed the Stale label Aug 2, 2024

mux := http.NewServeMux()
mux.HandleFunc("/events", eventStream.HTTPHandler)
addr := net.JoinHostPort(cfg.RPC.ListenAddr, strconv.Itoa(cfg.RPC.ListenPort+1))

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can the rpc server not be reused for the event stream? Otherwise the address and port of the SSE stream should be a flag / config

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n.log.Warn("failed to marshal payload attributes", "err", err)
return err
}
n.log.Info("Publishing execution payload attributes on event stream", "attrs", builderAttrs, "json", string(jsonBytes))

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is "json", string(jsonBytes) left from debugging? logs would be quite verbose

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func (eq *CLSync) PublishAttributes(ctx context.Context, l2head eth.L2BlockRef) error {
l1Origin, err := eq.l1OriginSelector.FindL1Origin(ctx, l2head)
if err != nil {
eq.log.Error("Error finding next L1 Origin", "err", err)

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withParent := &derive.AttributesWithParent{
Attributes: attrs,
Parent: l2head,
IsLastInSpan: false,

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what is IsLastInSpan used for?

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the derivation pipeline inserts blocks in batch which they call it a span. If it is the last block in span, it sets that to the safe head.

if attributes.IsLastInSpan {

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since we are inserting unsafe payloads it should be set to false

transactions := make([]*types.Transaction, len(a.Attributes.Transactions))
for i, txBytes := range a.Attributes.Transactions {
var ttx types.Transaction
ttx.UnmarshalBinary(txBytes)

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I think this can return an error, good to log something here at least

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fixed to return error properly fd07061

ParentBeaconBlockRoot *common.Hash `json:"parentBeaconBlockRoot"`
Transactions types.Transactions `json:"transactions"`
GasLimit uint64 `json:"gasLimit"`
NoTxPool bool `json:"noTxPool,omitempty"`

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what is NoTxPool? its not set in ToBuilderPayloadAttributes()

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it is used for a block that only contains deposit txs. it was my mistake to leave it unset

27754df

@jinmel jinmel merged commit a22b855 into fjord Aug 14, 2024
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avalonche pushed a commit that referenced this pull request Aug 27, 2024
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3 participants