Make the startup lookback configurable

Author: Peter Pratscher

cmd/indexer/main.go

@@ -40,6 +40,7 @@ func main() {
 	dbName := flag.String("dbName", "", "Database name")
 
 	codaEndpoint := flag.String("coda", "localhost:3085/graphql", "CODA node graphql endpoint")
+	startupLookback := flag.Int("startupLookback", 1000, "Check the last x blocks immediately after startup")
 
 	flag.Parse()
 
@@ -65,7 +66,7 @@ func main() {
 	db.DB = dbConn
 	defer db.DB.Close()
 
-	indexer.Start(*codaEndpoint)
+	indexer.Start(*codaEndpoint, *startupLookback)
 
 	util.WaitForCtrlC()
 

indexer/indexer.go

@@ -29,7 +29,7 @@ import (
 var logger = logrus.New().WithField("module", "indexer")
 
 // Start starts the indexing process
-func Start(rpcEndpoint string) {
+func Start(rpcEndpoint string, startupLookback int) {
 	client := rpc.NewCodaClient(rpcEndpoint)
 
 	newBlockChan := make(chan string)
@@ -42,7 +42,7 @@ func Start(rpcEndpoint string) {
 
 	go updateStatistics(time.Hour)
 
-	checkBlocks(client, 1000)
+	checkBlocks(client, startupLookback)
 }
 
 func updateStatistics(intv time.Duration) {

templates/block.html

@@ -8,7 +8,7 @@
 	<div class="mb-3">
 		<div class="d-md-flex py-2 justify-content-md-between">
 			<h1 class="h4 mb-1 mb-md-0">
-				<span class="ml-1 mr-1"><i class="fas fa-cube mr-2"></i>Block at Slot {{.Slot}}</span>
+				<span class="ml-1 mr-1"><i class="fas fa-cube mr-2"></i>Block at Slot {{.Slot}} of Epoch {{.Epoch}}</span>
 			</h1>
 			<nav aria-label="breadcrumb">
 				<ol class="breadcrumb font-size-1 mb-0" style="padding:0; background-color:transparent;">