@lodestar/beacon-node/lib/network/reqresp/handlers/executionPayloadEnvelopesByRoot.js

A Typescript implementation of the beacon chain

import { computeEpochAtSlot } from "@lodestar/state-transition";
import { toRootHex } from "@lodestar/utils";
export async function* onExecutionPayloadEnvelopesByRoot(requestBody, chain, db) {
    // The gloas req/resp spec uses MIN_EPOCHS_FOR_BLOCK_REQUESTS to define the minimum range peers MUST serve.
    // Archival nodes may still serve older retained payloads to allow genesis sync.
    for (const root of requestBody) {
        const rootHex = toRootHex(root);
        const block = chain.forkChoice.getBlockHexDefaultStatus(rootHex);
        // If the block is not in fork choice, it may be finalized. Attempt to find its slot in block archive
        const slot = block ? block.slot : await db.blockArchive.getSlotByRoot(root);
        if (slot === null) {
            continue;
        }
        const envelopeBytes = await chain.getSerializedExecutionPayloadEnvelope(slot, rootHex);
        if (envelopeBytes) {
            yield {
                data: envelopeBytes,
                boundary: chain.config.getForkBoundaryAtEpoch(computeEpochAtSlot(slot)),
            };
        }
    }
}
//# sourceMappingURL=executionPayloadEnvelopesByRoot.js.map