fix: avoid toHexString()

packages/api/src/beacon/routes/proof.ts

@@ -1,6 +1,7 @@
 /* eslint-disable @typescript-eslint/naming-convention */
 import {CompactMultiProof, ProofType} from "@chainsafe/persistent-merkle-tree";
-import {ByteListType, ContainerType, fromHexString, toHexString} from "@chainsafe/ssz";
+import {ByteListType, ContainerType, fromHexString} from "@chainsafe/ssz";
+import {toHex} from "@lodestar/utils";
 import {ChainForkConfig} from "@lodestar/config";
 import {ssz} from "@lodestar/types";
 import {Endpoint, RouteDefinitions, Schema} from "../../utils/index.js";
@@ -45,7 +46,7 @@ export function getDefinitions(_config: ChainForkConfig): RouteDefinitions<Endpo
       url: "/eth/v0/beacon/proof/state/{state_id}",
       method: "GET",
       req: {
-        writeReq: ({stateId, descriptor}) => ({params: {state_id: stateId}, query: {format: toHexString(descriptor)}}),
+        writeReq: ({stateId, descriptor}) => ({params: {state_id: stateId}, query: {format: toHex(descriptor)}}),
         parseReq: ({params, query}) => ({stateId: params.state_id, descriptor: fromHexString(query.format)}),
         schema: {params: {state_id: Schema.StringRequired}, query: {format: Schema.StringRequired}},
       },
@@ -63,7 +64,7 @@ export function getDefinitions(_config: ChainForkConfig): RouteDefinitions<Endpo
       url: "/eth/v0/beacon/proof/block/{block_id}",
       method: "GET",
       req: {
-        writeReq: ({blockId, descriptor}) => ({params: {block_id: blockId}, query: {format: toHexString(descriptor)}}),
+        writeReq: ({blockId, descriptor}) => ({params: {block_id: blockId}, query: {format: toHex(descriptor)}}),
         parseReq: ({params, query}) => ({blockId: params.block_id, descriptor: fromHexString(query.format)}),
         schema: {params: {block_id: Schema.StringRequired}, query: {format: Schema.StringRequired}},
       },

packages/api/src/beacon/routes/validator.ts

@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import {ContainerType, fromHexString, toHexString, Type, ValueOf} from "@chainsafe/ssz";
+import {ContainerType, fromHexString, Type, ValueOf} from "@chainsafe/ssz";
 import {ChainForkConfig} from "@lodestar/config";
 import {isForkBlobs, isForkPostElectra} from "@lodestar/params";
 import {
@@ -20,6 +20,7 @@ import {
   Attestation,
   sszTypesFor,
 } from "@lodestar/types";
+import {toHex, toRootHex} from "@lodestar/utils";
 import {Endpoint, RouteDefinitions, Schema} from "../../utils/index.js";
 import {fromGraffitiHex, toBoolean, toGraffitiHex} from "../../utils/serdes.js";
 import {getExecutionForkTypes, toForkName} from "../../utils/fork.js";
@@ -623,7 +624,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
         writeReq: ({slot, randaoReveal, graffiti, feeRecipient, builderSelection, strictFeeRecipientCheck}) => ({
           params: {slot},
           query: {
-            randao_reveal: toHexString(randaoReveal),
+            randao_reveal: toHex(randaoReveal),
             graffiti: toGraffitiHex(graffiti),
             fee_recipient: feeRecipient,
             builder_selection: builderSelection,
@@ -674,7 +675,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
         }) => ({
           params: {slot},
           query: {
-            randao_reveal: toHexString(randaoReveal),
+            randao_reveal: toHex(randaoReveal),
             graffiti: toGraffitiHex(graffiti),
             skip_randao_verification: writeSkipRandaoVerification(skipRandaoVerification),
             fee_recipient: feeRecipient,
@@ -765,7 +766,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
       req: {
         writeReq: ({slot, randaoReveal, graffiti}) => ({
           params: {slot},
-          query: {randao_reveal: toHexString(randaoReveal), graffiti: toGraffitiHex(graffiti)},
+          query: {randao_reveal: toHex(randaoReveal), graffiti: toGraffitiHex(graffiti)},
         }),
         parseReq: ({params, query}) => ({
           slot: params.slot,
@@ -805,7 +806,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
       method: "GET",
       req: {
         writeReq: ({slot, subcommitteeIndex, beaconBlockRoot}) => ({
-          query: {slot, subcommittee_index: subcommitteeIndex, beacon_block_root: toHexString(beaconBlockRoot)},
+          query: {slot, subcommittee_index: subcommitteeIndex, beacon_block_root: toRootHex(beaconBlockRoot)},
         }),
         parseReq: ({query}) => ({
           slot: query.slot,
@@ -830,7 +831,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
       method: "GET",
       req: {
         writeReq: ({attestationDataRoot, slot}) => ({
-          query: {attestation_data_root: toHexString(attestationDataRoot), slot},
+          query: {attestation_data_root: toRootHex(attestationDataRoot), slot},
         }),
         parseReq: ({query}) => ({
           attestationDataRoot: fromHexString(query.attestation_data_root),
@@ -853,7 +854,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
       method: "GET",
       req: {
         writeReq: ({attestationDataRoot, slot, committeeIndex}) => ({
-          query: {attestation_data_root: toHexString(attestationDataRoot), slot, committee_index: committeeIndex},
+          query: {attestation_data_root: toHex(attestationDataRoot), slot, committee_index: committeeIndex},
         }),
         parseReq: ({query}) => ({
           attestationDataRoot: fromHexString(query.attestation_data_root),

packages/api/src/builder/routes.ts

@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
-import {fromHexString, toHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
 import {
   ssz,
   bellatrix,
@@ -13,7 +13,7 @@ import {
 } from "@lodestar/types";
 import {ForkName, isForkBlobs} from "@lodestar/params";
 import {ChainForkConfig} from "@lodestar/config";
-import {toPubkeyHex} from "@lodestar/utils";
+import {toPubkeyHex, toRootHex} from "@lodestar/utils";
 
 import {Endpoint, RouteDefinitions, Schema} from "../utils/index.js";
 import {MetaHeader, VersionCodec, VersionMeta} from "../utils/metadata.js";
@@ -106,7 +106,7 @@ export function getDefinitions(config: ChainForkConfig): RouteDefinitions<Endpoi
       method: "GET",
       req: {
         writeReq: ({slot, parentHash, proposerPubkey: proposerPubKey}) => ({
-          params: {slot, parent_hash: toHexString(parentHash), pubkey: toPubkeyHex(proposerPubKey)},
+          params: {slot, parent_hash: toRootHex(parentHash), pubkey: toPubkeyHex(proposerPubKey)},
         }),
         parseReq: ({params}) => ({
           slot: params.slot,

packages/api/src/utils/serdes.ts

@@ -1,4 +1,5 @@
-import {fromHexString, JsonPath, toHexString} from "@chainsafe/ssz";
+import {fromHexString, JsonPath} from "@chainsafe/ssz";
+import {toHex} from "@lodestar/utils";
 
 /**
  * Serialize proof path to JSON.
@@ -82,7 +83,7 @@ export function toGraffitiHex(utf8?: string): string | undefined {
     return undefined;
   }
 
-  const hex = toHexString(new TextEncoder().encode(utf8));
+  const hex = toHex(new TextEncoder().encode(utf8));
 
   if (hex.length > GRAFFITI_HEX_LENGTH) {
     // remove characters from the end if hex string is too long

packages/beacon-node/src/chain/blocks/importBlock.ts

@@ -1,4 +1,3 @@
-import {toHexString} from "@chainsafe/ssz";
 import {capella, ssz, altair, BeaconBlock} from "@lodestar/types";
 import {ForkLightClient, ForkSeq, INTERVALS_PER_SLOT, MAX_SEED_LOOKAHEAD, SLOTS_PER_EPOCH} from "@lodestar/params";
 import {
@@ -10,7 +9,7 @@ import {
 } from "@lodestar/state-transition";
 import {routes} from "@lodestar/api";
 import {ForkChoiceError, ForkChoiceErrorCode, EpochDifference, AncestorStatus} from "@lodestar/fork-choice";
-import {isErrorAborted, toRootHex} from "@lodestar/utils";
+import {isErrorAborted, toHex, toRootHex} from "@lodestar/utils";
 import {ZERO_HASH_HEX} from "../../constants/index.js";
 import {toCheckpointHex} from "../stateCache/index.js";
 import {isOptimisticBlock} from "../../util/forkChoice.js";
@@ -433,8 +432,8 @@ export async function importBlock(
             blockRoot: blockRootHex,
             slot: blockSlot,
             index,
-            kzgCommitment: toHexString(kzgCommitment),
-            versionedHash: toHexString(kzgCommitmentToVersionedHash(kzgCommitment)),
+            kzgCommitment: toHex(kzgCommitment),
+            versionedHash: toHex(kzgCommitmentToVersionedHash(kzgCommitment)),
           });
         }
       }

packages/beacon-node/src/chain/opPools/opPool.ts

@@ -1,4 +1,4 @@
-import {fromHexString, toHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
 import {
   CachedBeaconStateAllForks,
   computeEpochAtSlot,
@@ -16,7 +16,7 @@ import {
   ForkSeq,
   MAX_ATTESTER_SLASHINGS_ELECTRA,
 } from "@lodestar/params";
-import {toRootHex} from "@lodestar/utils";
+import {toHex, toRootHex} from "@lodestar/utils";
 import {Epoch, phase0, capella, ssz, ValidatorIndex, SignedBeaconBlock, AttesterSlashing} from "@lodestar/types";
 import {IBeaconDb} from "../../db/index.js";
 import {SignedBLSToExecutionChangeVersioned} from "../../util/types.js";
@@ -88,7 +88,7 @@ export class OpPool {
           key: fromHexString(key),
           value: value.attesterSlashing,
         })),
-        toHexString
+        toHex
       ),
       persistDiff(
         db.proposerSlashing,

packages/beacon-node/src/chain/stateCache/datastore/file.ts

@@ -1,6 +1,7 @@
 import path from "node:path";
-import {toHexString, fromHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
 import {phase0, ssz} from "@lodestar/types";
+import {toHex} from "@lodestar/utils";
 import {ensureDir, readFile, readFileNames, removeFile, writeIfNotExist} from "../../../util/file.js";
 import {CPStateDatastore, DatastoreKey} from "./types.js";
 
@@ -28,18 +29,18 @@ export class FileCPStateDatastore implements CPStateDatastore {
 
   async write(cpKey: phase0.Checkpoint, stateBytes: Uint8Array): Promise<DatastoreKey> {
     const serializedCheckpoint = ssz.phase0.Checkpoint.serialize(cpKey);
-    const filePath = path.join(this.folderPath, toHexString(serializedCheckpoint));
+    const filePath = path.join(this.folderPath, toHex(serializedCheckpoint));
     await writeIfNotExist(filePath, stateBytes);
     return serializedCheckpoint;
   }
 
   async remove(serializedCheckpoint: DatastoreKey): Promise<void> {
-    const filePath = path.join(this.folderPath, toHexString(serializedCheckpoint));
+    const filePath = path.join(this.folderPath, toHex(serializedCheckpoint));
     await removeFile(filePath);
   }
 
   async read(serializedCheckpoint: DatastoreKey): Promise<Uint8Array | null> {
-    const filePath = path.join(this.folderPath, toHexString(serializedCheckpoint));
+    const filePath = path.join(this.folderPath, toHex(serializedCheckpoint));
     return readFile(filePath);
   }
 

packages/beacon-node/src/chain/stateCache/persistentCheckpointsCache.ts

@@ -1,7 +1,7 @@
-import {fromHexString, toHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
 import {phase0, Epoch, RootHex} from "@lodestar/types";
 import {CachedBeaconStateAllForks, computeStartSlotAtEpoch, getBlockRootAtSlot} from "@lodestar/state-transition";
-import {Logger, MapDef, sleep, toRootHex} from "@lodestar/utils";
+import {Logger, MapDef, sleep, toHex, toRootHex} from "@lodestar/utils";
 import {routes} from "@lodestar/api";
 import {loadCachedBeaconState} from "@lodestar/state-transition";
 import {INTERVALS_PER_SLOT} from "@lodestar/params";
@@ -193,7 +193,7 @@ export class PersistentCheckpointStateCache implements CheckpointStateCache {
       return stateOrStateBytesData?.clone(opts?.dontTransferCache) ?? null;
     }
     const {persistedKey, stateBytes} = stateOrStateBytesData;
-    const logMeta = {persistedKey: toHexString(persistedKey)};
+    const logMeta = {persistedKey: toHex(persistedKey)};
     this.logger.debug("Reload: read state successful", logMeta);
     this.metrics?.stateReloadSecFromSlot.observe(this.clock?.secFromSlot(this.clock?.currentSlot ?? 0) ?? 0);
     const seedState = this.findSeedStateToReload(cp);
@@ -341,7 +341,7 @@ export class PersistentCheckpointStateCache implements CheckpointStateCache {
       this.logger.verbose("Added checkpoint state to memory but a persisted key existed", {
         epoch: cp.epoch,
         rootHex: cpHex.rootHex,
-        persistedKey: toHexString(persistedKey),
+        persistedKey: toHex(persistedKey),
       });
     } else {
       this.cache.set(key, {type: CacheItemType.inMemory, state});
@@ -688,7 +688,7 @@ export class PersistentCheckpointStateCache implements CheckpointStateCache {
           stateSlot: state.slot,
           rootHex,
           epochBoundaryHex,
-          persistedKey: persistedKey ? toHexString(persistedKey) : "",
+          persistedKey: persistedKey ? toHex(persistedKey) : "",
         };
 
         if (persistedRootHexes.has(rootHex)) {
@@ -716,7 +716,7 @@ export class PersistentCheckpointStateCache implements CheckpointStateCache {
             persistCount++;
             this.logger.verbose("Pruned checkpoint state from memory and persisted to disk", {
               ...logMeta,
-              persistedKey: toHexString(persistedKey),
+              persistedKey: toHex(persistedKey),
             });
           }
           // overwrite cpKey, this means the state is deleted from memory

packages/beacon-node/src/eth1/provider/eth1Provider.ts

@@ -1,7 +1,6 @@
-import {toHexString} from "@chainsafe/ssz";
 import {phase0} from "@lodestar/types";
 import {ChainConfig} from "@lodestar/config";
-import {fromHex, isErrorAborted, createElapsedTimeTracker, toPrintableUrl} from "@lodestar/utils";
+import {fromHex, isErrorAborted, createElapsedTimeTracker, toPrintableUrl, toHex} from "@lodestar/utils";
 import {Logger} from "@lodestar/logger";
 
 import {FetchError, isFetchError} from "@lodestar/api";
@@ -72,7 +71,7 @@ export class Eth1Provider implements IEth1Provider {
   ) {
     this.logger = opts.logger;
     this.deployBlock = opts.depositContractDeployBlock ?? 0;
-    this.depositContractAddress = toHexString(config.DEPOSIT_CONTRACT_ADDRESS);
+    this.depositContractAddress = toHex(config.DEPOSIT_CONTRACT_ADDRESS);
 
     const providerUrls = opts.providerUrls ?? DEFAULT_PROVIDER_URLS;
     this.rpc = new JsonRpcHttpClient(providerUrls, {

packages/beacon-node/src/eth1/provider/utils.ts

@@ -1,6 +1,6 @@
-import {fromHexString, toHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
 import {RootHex} from "@lodestar/types";
-import {bytesToBigInt, bigIntToBytes} from "@lodestar/utils";
+import {bytesToBigInt, bigIntToBytes, toHex} from "@lodestar/utils";
 import {ErrorParseJson} from "./jsonRpcHttpClient.js";
 
 /** QUANTITY as defined in ethereum execution layer JSON RPC https://eth.wiki/json-rpc/API */
@@ -32,7 +32,7 @@ export function bytesToHex(bytes: Uint8Array): string {
     return "0x" + bytes[0].toString(16);
   }
 
-  return toHexString(bytes);
+  return toHex(bytes);
 }
 
 /**
@@ -100,7 +100,7 @@ export function bytesToQuantity(bytes: Uint8Array): QUANTITY {
  * - WRONG: 004200 (must be prefixed 0x)
  */
 export function bytesToData(bytes: Uint8Array): DATA {
-  return toHexString(bytes);
+  return toHex(bytes);
 }
 
 /**

packages/beacon-node/src/eth1/utils/eth1Vote.ts

@@ -120,7 +120,6 @@ function getKeysWithMaxValue<T>(map: Map<T, number>): T[] {
  * ✓ pickEth1Vote - max votes                                            37.89912 ops/s    26.38583 ms/op        -         29 runs   1.27 s
  */
 function getEth1DataKey(eth1Data: phase0.Eth1Data): string {
-  // return toHexString(ssz.phase0.Eth1Data.hashTreeRoot(eth1Data));
   return fastSerializeEth1Data(eth1Data);
 }
 

packages/beacon-node/src/network/peers/utils/assertPeerRelevance.ts

@@ -1,6 +1,5 @@
-import {toHexString} from "@chainsafe/ssz";
 import {ForkDigest, Root, Slot, phase0, ssz} from "@lodestar/types";
-import {toRootHex} from "@lodestar/utils";
+import {toHex, toRootHex} from "@lodestar/utils";
 
 // TODO: Why this value? (From Lighthouse)
 const FUTURE_SLOT_TOLERANCE = 1;
@@ -79,7 +78,7 @@ export function isZeroRoot(root: Root): boolean {
 export function renderIrrelevantPeerType(type: IrrelevantPeerType): string {
   switch (type.code) {
     case IrrelevantPeerCode.INCOMPATIBLE_FORKS:
-      return `INCOMPATIBLE_FORKS ours: ${toHexString(type.ours)} theirs: ${toHexString(type.theirs)}`;
+      return `INCOMPATIBLE_FORKS ours: ${toHex(type.ours)} theirs: ${toHex(type.theirs)}`;
     case IrrelevantPeerCode.DIFFERENT_CLOCKS:
       return `DIFFERENT_CLOCKS slotDiff: ${type.slotDiff}`;
     case IrrelevantPeerCode.DIFFERENT_FINALIZED:

packages/cli/src/cmds/validator/keymanager/server.ts

@@ -1,10 +1,10 @@
 import crypto from "node:crypto";
 import fs from "node:fs";
 import path from "node:path";
-import {toHexString} from "@chainsafe/ssz";
 import {RestApiServer, RestApiServerOpts, RestApiServerModules} from "@lodestar/beacon-node";
 import {KeymanagerApiMethods, registerRoutes} from "@lodestar/api/keymanager/server";
 import {ChainForkConfig} from "@lodestar/config";
+import {toHex} from "@lodestar/utils";
 import {writeFile600Perm} from "../../../util/index.js";
 
 export type KeymanagerRestApiServerOpts = RestApiServerOpts & {
@@ -50,7 +50,7 @@ export class KeymanagerRestApiServer extends RestApiServer {
 
     if (opts.isAuthEnabled) {
       // Generate a new token if token file does not exist or file do exist, but is empty
-      bearerToken = readFileIfExists(apiTokenPath) ?? `api-token-${toHexString(crypto.randomBytes(32))}`;
+      bearerToken = readFileIfExists(apiTokenPath) ?? `api-token-${toHex(crypto.randomBytes(32))}`;
       writeFile600Perm(apiTokenPath, bearerToken, {encoding: "utf8"});
     }
 

packages/config/package.json

@@ -66,6 +66,7 @@
   "dependencies": {
     "@chainsafe/ssz": "^0.17.1",
     "@lodestar/params": "^1.21.0",
+    "@lodestar/utils": "^1.21.0",
     "@lodestar/types": "^1.21.0"
   }
 }

packages/config/src/chainConfig/json.ts

@@ -1,4 +1,5 @@
-import {fromHexString, toHexString} from "@chainsafe/ssz";
+import {fromHexString} from "@chainsafe/ssz";
+import {toHex} from "@lodestar/utils";
 import {ChainConfig, chainConfigTypes, SpecValue, SpecValueTypeName} from "./types.js";
 
 const MAX_UINT64_JSON = "18446744073709551615";
@@ -69,7 +70,7 @@ export function serializeSpecValue(value: SpecValue, typeName: SpecValueTypeName
       if (!(value instanceof Uint8Array)) {
         throw Error(`Invalid value ${value.toString()} expected Uint8Array`);
       }
-      return toHexString(value);
+      return toHex(value);
 
     case "string":
       if (typeof value !== "string") {

packages/config/src/genesisConfig/index.ts

@@ -1,6 +1,6 @@
-import {toHexString} from "@chainsafe/ssz";
 import {ForkName, SLOTS_PER_EPOCH, DOMAIN_VOLUNTARY_EXIT} from "@lodestar/params";
 import {DomainType, ForkDigest, phase0, Root, Slot, ssz, Version} from "@lodestar/types";
+import {toHex} from "@lodestar/utils";
 import {ChainForkConfig} from "../beaconConfig.js";
 import {ForkDigestHex, CachedGenesis} from "./types.js";
 export type {ForkDigestContext} from "./types.js";
@@ -139,7 +139,7 @@ function computeForkDataRoot(currentVersion: Version, genesisValidatorsRoot: Roo
 }
 
 function toHexStringNoPrefix(hex: string | Uint8Array): string {
-  return strip0xPrefix(typeof hex === "string" ? hex : toHexString(hex));
+  return strip0xPrefix(typeof hex === "string" ? hex : toHex(hex));
 }
 
 function strip0xPrefix(hex: string): string {