Update the boot process

cmd/boot.go

@@ -44,7 +44,7 @@ func bootApp() {
 	log.Info("Starting the application in boot mode.")
 	ctx := context.Background()
 
-	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, testDisregardSync)
+	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "head", testDisregardSync)
 	if err != nil {
 		loghelper.LogError(err).Error("Unable to Start application")
 	}

cmd/capture.go

@@ -33,6 +33,8 @@ var (
 	dbPort                 int
 	bcAddress              string
 	bcPort                 int
+	bcBootRetryInterval    int
+	bcBootMaxRetry         int
 	bcConnectionProtocol   string
 	bcType                 string
 	maxWaitSecondsShutdown time.Duration  = time.Duration(5) * time.Second
@@ -80,6 +82,8 @@ func init() {
 	captureCmd.PersistentFlags().StringVarP(&bcType, "bc.type", "", "lighthouse", "The beacon client we are using, options are prysm and lighthouse.")
 	captureCmd.PersistentFlags().IntVarP(&bcPort, "bc.port", "r", 0, "Port to connect to beacon node (required )")
 	captureCmd.PersistentFlags().StringVarP(&bcConnectionProtocol, "bc.connectionProtocol", "", "http", "protocol for connecting to the beacon node.")
+	captureCmd.PersistentFlags().IntVarP(&bcBootRetryInterval, "bc.bootRetryInterval", "", 30, "The amount of time to wait between retries while booting the application")
+	captureCmd.PersistentFlags().IntVarP(&bcBootMaxRetry, "bc.bootMaxRetry", "", 5, "The amount of time to wait between retries while booting the application")
 	err = captureCmd.MarkPersistentFlagRequired("bc.address")
 	exitErr(err)
 	err = captureCmd.MarkPersistentFlagRequired("bc.port")
@@ -116,6 +120,10 @@ func init() {
 	exitErr(err)
 	err = viper.BindPFlag("bc.connectionProtocol", captureCmd.PersistentFlags().Lookup("bc.connectionProtocol"))
 	exitErr(err)
+	err = viper.BindPFlag("bc.bootRetryInterval", captureCmd.PersistentFlags().Lookup("bc.bootRetryInterval"))
+	exitErr(err)
+	err = viper.BindPFlag("bc.bootMaxRetry", captureCmd.PersistentFlags().Lookup("bc.bootMaxRetry"))
+	exitErr(err)
 	// Here you will define your flags and configuration settings.
 
 }

cmd/head.go

@@ -48,7 +48,7 @@ func startHeadTracking() {
 	log.Info("Starting the application in head tracking mode.")
 	ctx := context.Background()
 
-	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, testDisregardSync)
+	BC, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "historic", testDisregardSync)
 	if err != nil {
 		loghelper.LogError(err).Error("Unable to Start application")
 		if DB != nil {

cmd/historic.go

@@ -17,9 +17,14 @@
 package cmd
 
 import (
-	"fmt"
+	"context"
+	"os"
 
+	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
+	"github.com/vulcanize/ipld-ethcl-indexer/internal/boot"
+	"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
+	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
 )
 
 // historicCmd represents the historic command
@@ -28,10 +33,22 @@ var historicCmd = &cobra.Command{
 	Short: "Capture the historic blocks and states.",
 	Long:  `Capture the historic blocks and states.`,
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("historic called")
+		startHistoricProcessing()
 	},
 }
 
+// Start the application to process historical slots.
+func startHistoricProcessing() {
+	// Boot the application
+	log.Info("Starting the application in head tracking mode.")
+	ctx := context.Background()
+
+	_, DB, err := boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "historic", testDisregardSync)
+	if err != nil {
+		StopApplicationPreBoot(err, DB)
+	}
+}
+
 func init() {
 	captureCmd.AddCommand(historicCmd)
 
@@ -45,3 +62,12 @@ func init() {
 	// is called directly, e.g.:
 	// historicCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }
+
+// Stop the application during its initial boot phases.
+func StopApplicationPreBoot(startErr error, db sql.Database) {
+	loghelper.LogError(startErr).Error("Unable to Start application")
+	if db != nil {
+		db.Close()
+	}
+	os.Exit(1)
+}

internal/boot/boot.go

@@ -18,6 +18,7 @@ package boot
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	log "github.com/sirupsen/logrus"
@@ -27,8 +28,6 @@ import (
 )
 
 var (
-	maxRetry                                 = 5  // Max times to try to connect to the DB or BC at boot.
-	retryInterval                            = 30 // The time to wait between each try.
 	DB sql.Database               = &postgres.DB{}
 	BC *beaconclient.BeaconClient = &beaconclient.BeaconClient{}
 )
@@ -81,19 +80,33 @@ func BootApplication(ctx context.Context, dbHostname string, dbPort int, dbName
 }
 
 // Add retry logic to ensure that we are give the Beacon Client and the DB time to start.
-func BootApplicationWithRetry(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string, bcAddress string, bcPort int, bcConnectionProtocol string, disregardSync bool) (*beaconclient.BeaconClient, sql.Database, error) {
+func BootApplicationWithRetry(ctx context.Context, dbHostname string, dbPort int, dbName string, dbUsername string, dbPassword string, driverName string,
+	bcAddress string, bcPort int, bcConnectionProtocol string, bcType string, bcRetryInterval int, bcMaxRetry int, startUpMode string, disregardSync bool) (*beaconclient.BeaconClient, sql.Database, error) {
 	var err error
-	for i := 0; i < maxRetry; i++ {
+	for i := 0; i < bcMaxRetry; i++ {
 		BC, DB, err = BootApplication(ctx, dbHostname, dbPort, dbName, dbUsername, dbPassword, driverName, bcAddress, bcPort, bcConnectionProtocol, disregardSync)
 		if err != nil {
 			log.WithFields(log.Fields{
 				"retryNumber": i,
 				"err":         err,
 			}).Warn("Unable to boot application. Going to try again")
-			time.Sleep(time.Duration(retryInterval) * time.Second)
+			time.Sleep(time.Duration(bcRetryInterval) * time.Second)
 			continue
 		}
 		break
 	}
+
+	switch strings.ToLower(startUpMode) {
+	case "head":
+		log.Debug("No further actions needed to boot the application at this phase.")
+	case "historic":
+		log.Debug("Performing additional boot steps for historical processing")
+		headSlot, err := BC.GetLatestSlotInBeaconServer(bcType)
+		if err != nil {
+			return BC, DB, err
+		}
+		BC.UpdateLatestSlotInBeaconServer(int64(headSlot))
+		// Add another switch case for bcType if its ever needed.
+	}
 	return BC, DB, err
 }

internal/boot/boot_test.go

@@ -34,18 +34,28 @@ var _ = Describe("Boot", func() {
 		bcAddress            string = "localhost"
 		bcPort               int    = 5052
 		bcConnectionProtocol string = "http"
+		bcType               string = "lighthouse"
+		bcBootRetryInterval  int    = 1
+		bcBootMaxRetry       int    = 5
 	)
 	Describe("Booting the application", Label("integration"), func() {
-		Context("When the DB and BC are both up and running, and we skip checking for a synced head", func() {
+		Context("When the DB and BC are both up and running, we skip checking for a synced head, and we are processing head", func() {
 			It("Should connect successfully", func() {
-				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, true)
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "head", true)
+				defer db.Close()
+				Expect(err).ToNot(HaveOccurred())
+			})
+		})
+		Context("When the DB and BC are both up and running, we skip checking for a synced head, and we are processing historic ", func() {
+			It("Should connect successfully", func() {
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "historic", true)
 				defer db.Close()
 				Expect(err).ToNot(HaveOccurred())
 			})
 		})
 		Context("When the DB and BC are both up and running, and we check for a synced head", func() {
 			It("Should not connect successfully", func() {
-				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, false)
+				_, db, err := boot.BootApplicationWithRetry(context.Background(), dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "head", false)
 				defer db.Close()
 				Expect(err).To(HaveOccurred())
 			})

internal/shutdown/shutdown_test.go

@@ -46,6 +46,9 @@ var _ = Describe("Shutdown", func() {
 		bcAddress              string        = "localhost"
 		bcPort                 int           = 5052
 		bcConnectionProtocol   string        = "http"
+		bcType                 string        = "lighthouse"
+		bcBootRetryInterval    int           = 1
+		bcBootMaxRetry         int           = 5
 		maxWaitSecondsShutdown time.Duration = time.Duration(1) * time.Second
 		DB                     sql.Database
 		BC                     *beaconclient.BeaconClient
@@ -55,7 +58,7 @@ var _ = Describe("Shutdown", func() {
 	)
 	BeforeEach(func() {
 		ctx = context.Background()
-		BC, DB, err = boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, true)
+		BC, DB, err = boot.BootApplicationWithRetry(ctx, dbAddress, dbPort, dbName, dbUsername, dbPassword, dbDriver, bcAddress, bcPort, bcConnectionProtocol, bcType, bcBootRetryInterval, bcBootMaxRetry, "head", true)
 		notifierCh = make(chan os.Signal, 1)
 		Expect(err).To(BeNil())
 	})

pkg/beaconclient/beaconclient.go

@@ -31,7 +31,8 @@ var (
 	bcReorgTopicEndpoint = "/eth/v1/events?topics=chain_reorg" // Endpoint used to subscribe to the head of the chain
 	BcBlockQueryEndpoint = "/eth/v2/beacon/blocks/"            // Endpoint to query individual Blocks
 	BcStateQueryEndpoint = "/eth/v2/debug/beacon/states/"      // Endpoint to query individual States
-	BcSyncStatusEndpoint = "/eth/v1/node/syncing"
+	BcSyncStatusEndpoint = "/eth/v1/node/syncing"              // The endpoint to check to see if the beacon server is still trying to sync to head.
+	LhDbInfoEndpoint     = "/lighthouse/database/info"         // The endpoint for the LIGHTHOUSE server to get the database information.
 	BcBlockRootEndpoint  = func(slot string) string {
 		return "/eth/v1/beacon/blocks/" + slot + "/root"
 	}
@@ -40,15 +41,6 @@ var (
 	//bcFinalizedTopicEndpoint  = "/eth/v1/events?topics=finalized_checkpoint" // Endpoint used to subscribe to the head of the chain
 )
 
-// A structure utilized for keeping track of various metrics. Currently, mostly used in testing.
-type BeaconClientMetrics struct {
-	HeadTrackingInserts   uint64 // Number of head events we successfully wrote to the DB.
-	HeadTrackingReorgs    uint64 // Number of reorg events we successfully wrote to the DB.
-	HeadTrackingKnownGaps uint64 // Number of known_gaps we successfully wrote to the DB.
-	HeadError             uint64 // Number of errors that occurred when decoding the head message.
-	HeadReorgError        uint64 // Number of errors that occurred when decoding the reorg message.
-}
-
 // A struct that capture the Beacon Server that the Beacon Client will be interacting with and querying.
 type BeaconClient struct {
 	Context                     context.Context      // A context generic context with multiple uses.
@@ -59,6 +51,7 @@ type BeaconClient struct {
 	KnownGapTableIncrement      int                  // The max number of slots within a single known_gaps table entry.
 
 	// Used for Head Tracking
+
 	PerformHeadTracking bool                   // Should we track head?
 	StartingSlot        int                    // If we're performing head tracking. What is the first slot we processed.
 	PreviousSlot        int                    // Whats the previous slot we processed
@@ -67,6 +60,12 @@ type BeaconClient struct {
 	HeadTracking        *SseEvents[Head]       // Track the head block
 	ReOrgTracking       *SseEvents[ChainReorg] // Track all Reorgs
 	//FinalizationTracking        *SseEvents[FinalizedCheckpoint] // Track all finalization checkpoints
+
+	// Used for Historical Processing
+
+	// The latest available slot within the Beacon Server. We can't query any slot greater than this.
+	// This value is lazily updated. Therefore at times it will be outdated.
+	LatestSlotInBeaconServer int64
 }
 
 // A struct to keep track of relevant the head event topic.
@@ -96,6 +95,9 @@ func CreateBeaconClient(ctx context.Context, connectionProtocol string, bcAddres
 		Metrics: &BeaconClientMetrics{
 			HeadTrackingInserts:   0,
 			HeadTrackingReorgs:    0,
+			HeadTrackingKnownGaps: 0,
+			HeadError:             0,
+			HeadReorgError:        0,
 		},
 		//FinalizationTracking: createSseEvent[FinalizedCheckpoint](endpoint, bcFinalizedTopicEndpoint),
 	}

pkg/beaconclient/checkbeaconserverstatus.go

@@ -0,0 +1,207 @@
+// VulcanizeDB
+// Copyright © 2022 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+package beaconclient
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync/atomic"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
+)
+
+var (
+	MissingBeaconServerType error = fmt.Errorf("The beacon server type provided is not handled.")
+	LighthouseMissingSlots  error = fmt.Errorf("Anchor is not nil. This means lighthouse has not backfilled all the slots from Genesis to head.")
+)
+
+// The sync response when checking if the node is synced.
+type Sync struct {
+	Data SyncData `json:"data"`
+}
+
+// The sync data
+type SyncData struct {
+	IsSync       bool   `json:"is_syncing"`
+	HeadSlot     string `json:"head_slot"`
+	SyncDistance string `json:"sync_distance"`
+}
+
+// This function will check to see if we are synced up with the head of chain.
+//{"data":{"is_syncing":true,"head_slot":"62528","sync_distance":"3734299"}}
+func (bc BeaconClient) CheckHeadSync() (bool, error) {
+	syncStatus, err := bc.QueryHeadSync()
+	if err != nil {
+		return true, nil
+	}
+	return syncStatus.Data.IsSync, nil
+}
+
+func (bc BeaconClient) QueryHeadSync() (Sync, error) {
+	var syncStatus Sync
+	bcSync := bc.ServerEndpoint + BcSyncStatusEndpoint
+	resp, err := http.Get(bcSync)
+
+	if err != nil {
+		loghelper.LogEndpoint(bcSync).Error("Unable to check the sync status")
+		return syncStatus, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the sync status")
+		return syncStatus, fmt.Errorf("Querying the sync status returned a non 2xx status code, code provided: %d", resp.StatusCode)
+	}
+
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return syncStatus, err
+	}
+
+	if err := json.Unmarshal(body, &syncStatus); err != nil {
+		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{
+			"rawMessage": string(body),
+			"err":        err,
+		}).Error("Unable to unmarshal sync status")
+		return syncStatus, err
+	}
+	return syncStatus, nil
+}
+
+// The response when checking the lighthouse nodes DB info: /lighthouse/database/info
+type LighthouseDatabaseInfo struct {
+	SchemaVersion int        `json:"schema_version"`
+	Config        LhDbConfig `json:"config"`
+	Split         LhDbSplit  `json:"split"`
+	Anchor        LhDbAnchor `json:"anchor"`
+}
+
+// The config field within the DatabaseInfo response.
+type LhDbConfig struct {
+	SlotsPerRestorePoint              int  `json:"slots_per_restore_point"`
+	SlotsPerRestorePointSetExplicitly bool `json:"slots_per_restore_point_set_explicitly"`
+	BlockCacheSize                    int  `json:"block_cache_size"`
+	CompactOnInit                     bool `json:"compact_on_init"`
+	CompactOnPrune                    bool `json:"compact_on_prune"`
+}
+
+// The split field within the DatabaseInfo response.
+type LhDbSplit struct {
+	Slot      string `json:"slot"`
+	StateRoot string `json:"state_root"`
+}
+
+// The anchor field within the DatabaseInfo response.
+type LhDbAnchor struct {
+	AnchorSlot        string `json:"anchor_slot"`
+	OldestBlockSlot   string `json:"oldest_block_slot"`
+	OldestBlockParent string `json:"oldest_block_parent"`
+	StateUpperLimit   string `json:"state_upper_limit"`
+	StateLowerLimit   string `json:"state_lower_limit"`
+}
+
+// This function will notify us what the head slot is.
+func (bc BeaconClient) queryHeadSlotInBeaconServer() (int, error) {
+	syncStatus, err := bc.QueryHeadSync()
+	if err != nil {
+		return 0, nil
+	}
+	headSlot, err := strconv.Atoi(syncStatus.Data.HeadSlot)
+	if err != nil {
+		return 0, nil
+	}
+	return headSlot, nil
+}
+
+// return the lighthouse Database Info
+func (bc BeaconClient) queryLighthouseDbInfo() (LighthouseDatabaseInfo, error) {
+	var dbInfo LighthouseDatabaseInfo
+
+	lhDbInfo := bc.ServerEndpoint + LhDbInfoEndpoint
+	resp, err := http.Get(lhDbInfo)
+
+	if err != nil {
+		loghelper.LogEndpoint(lhDbInfo).Error("Unable to get the lighthouse database information")
+		return dbInfo, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		loghelper.LogEndpoint(lhDbInfo).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the lighthouse database information")
+		return dbInfo, fmt.Errorf("Querying the lighthouse database information returned a non 2xx status code, code provided: %d", resp.StatusCode)
+	}
+
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return dbInfo, err
+	}
+
+	if err := json.Unmarshal(body, &dbInfo); err != nil {
+		loghelper.LogEndpoint(lhDbInfo).WithFields(log.Fields{
+			"rawMessage": string(body),
+			"err":        err,
+		}).Error("Unable to unmarshal the lighthouse database information")
+		return dbInfo, err
+	}
+	return dbInfo, nil
+}
+
+// This function will tell us what the latest slot is that the beacon server has available. This is important as
+// it will ensure us that we have all slots prior to the given slot.
+func (bc BeaconClient) GetLatestSlotInBeaconServer(beaconServerType string) (int, error) {
+	switch strings.ToLower(beaconServerType) {
+	case "lighthouse":
+		headSlot, err := bc.queryHeadSlotInBeaconServer()
+		if err != nil {
+			return 0, err
+		}
+		lhDb, err := bc.queryLighthouseDbInfo()
+		if err != nil {
+			return 0, err
+		}
+		if lhDb.Anchor == (LhDbAnchor{}) {
+			//atomic.StoreInt64(&bc.LatestSlotInBeaconServer, int64(headSlot))
+			log.WithFields(log.Fields{
+				"headSlot": headSlot,
+			}).Info("Anchor is nil, the lighthouse client has all the nodes from genesis to head.")
+			return headSlot, nil
+		} else {
+			log.WithFields(log.Fields{
+				"lhDb.Anchor": lhDb.Anchor,
+			}).Info(LighthouseMissingSlots.Error())
+			log.Info("We will add a feature down the road to wait for anchor to be null, if its needed.")
+			return 0, LighthouseMissingSlots
+		}
+	default:
+		log.WithFields(log.Fields{"BeaconServerType": beaconServerType}).Error(MissingBeaconServerType.Error())
+		return 0, MissingBeaconServerType
+	}
+}
+
+// A wrapper function for updating the latest slot.
+func (bc BeaconClient) UpdateLatestSlotInBeaconServer(headSlot int64) {
+	curr := atomic.LoadInt64(&bc.LatestSlotInBeaconServer)
+	log.WithFields(log.Fields{
+		"Previous Latest Slot": curr,
+		"New Latest Slot":      headSlot,
+	}).Debug("Swapping Head Slot")
+	atomic.SwapInt64(&bc.LatestSlotInBeaconServer, int64(headSlot))
+}

pkg/beaconclient/checksyncstatus.go

@@ -1,72 +0,0 @@
-// VulcanizeDB
-// Copyright © 2022 Vulcanize
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-package beaconclient
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-
-	log "github.com/sirupsen/logrus"
-	"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
-)
-
-// The sync response
-type Sync struct {
-	Data SyncData `json:"data"`
-}
-
-// The sync data
-type SyncData struct {
-	IsSync       bool   `json:"is_syncing"`
-	HeadSlot     string `json:"head_slot"`
-	SyncDistance string `json:"sync_distance"`
-}
-
-// This function will check to see if we are synced up with the head of chain.
-//{"data":{"is_syncing":true,"head_slot":"62528","sync_distance":"3734299"}}
-func (bc BeaconClient) CheckHeadSync() (bool, error) {
-	bcSync := bc.ServerEndpoint + BcSyncStatusEndpoint
-	resp, err := http.Get(bcSync)
-
-	if err != nil {
-		loghelper.LogEndpoint(bcSync).Error("Unable to check the sync status")
-		return true, err
-	}
-
-	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{"returnCode": resp.StatusCode}).Error("Error when getting the sync status")
-		return true, fmt.Errorf("Querying the sync status returned a non 2xx status code, code provided: %d", resp.StatusCode)
-	}
-
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return true, err
-	}
-
-	var syncStatus Sync
-	if err := json.Unmarshal(body, &syncStatus); err != nil {
-		loghelper.LogEndpoint(bcSync).WithFields(log.Fields{
-			"rawMessage": string(body),
-			"err":        err,
-		}).Error("Unable to unmarshal sync status")
-		return true, err
-	}
-
-	return syncStatus.Data.IsSync, nil
-}

pkg/beaconclient/metrics.go

@@ -19,6 +19,15 @@ import (
 	"sync/atomic"
 )
 
+// A structure utilized for keeping track of various metrics. Currently, mostly used in testing.
+type BeaconClientMetrics struct {
+	HeadTrackingInserts   uint64 // Number of head events we successfully wrote to the DB.
+	HeadTrackingReorgs    uint64 // Number of reorg events we successfully wrote to the DB.
+	HeadTrackingKnownGaps uint64 // Number of known_gaps we successfully wrote to the DB.
+	HeadError             uint64 // Number of errors that occurred when decoding the head message.
+	HeadReorgError        uint64 // Number of errors that occurred when decoding the reorg message.
+}
+
 // Wrapper function to increment inserts. If we want to use mutexes later we can easily update all
 // occurrences here.
 func (m *BeaconClientMetrics) IncrementHeadTrackingInserts(inc uint64) {