130 lines
2.9 KiB
Go
130 lines
2.9 KiB
Go
package main
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import (
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"context"
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"flag"
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"net/http"
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"os"
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"os/signal"
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"sync"
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"syscall"
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"time"
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"github.com/VictoriaMetrics/metrics"
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"github.com/grassrootseconomics/cic-chain-events/internal/exporter"
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"github.com/grassrootseconomics/cic-chain-events/internal/filter"
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"github.com/grassrootseconomics/cic-chain-events/internal/pipeline"
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"github.com/grassrootseconomics/cic-chain-events/internal/syncer"
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"github.com/knadh/goyesql/v2"
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"github.com/knadh/koanf"
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"github.com/zerodha/logf"
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)
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var (
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confFlag string
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debugFlag bool
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queriesFlag string
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ko *koanf.Koanf
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lo logf.Logger
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q goyesql.Queries
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)
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func init() {
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flag.StringVar(&confFlag, "config", "config.toml", "Config file location")
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flag.BoolVar(&debugFlag, "log", true, "Enable debug logging")
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flag.StringVar(&queriesFlag, "queries", "queries.sql", "Queries file location")
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flag.Parse()
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lo = initLogger(debugFlag)
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ko = initConfig(confFlag)
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q = initQueries(queriesFlag)
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}
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func main() {
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syncerStats := &syncer.Stats{}
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wg := &sync.WaitGroup{}
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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pgStore, err := initPgStore()
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if err != nil {
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lo.Fatal("error loading pg store", "error", err)
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}
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workerPool := initWorkerPool()
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graphqlFetcher := initFetcher()
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pipeline := pipeline.NewPipeline(pipeline.PipelineOpts{
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BlockFetcher: graphqlFetcher,
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Filters: []filter.Filter{
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initNoopFilter(),
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},
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Logg: lo,
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Store: pgStore,
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})
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headSyncer, err := syncer.NewHeadSyncer(syncer.HeadSyncerOpts{
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Logg: lo,
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Pipeline: pipeline,
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Pool: workerPool,
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Stats: syncerStats,
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WsEndpoint: ko.MustString("chain.ws_endpoint"),
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})
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if err != nil {
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lo.Fatal("error loading head syncer", "error", err)
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}
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janitor := syncer.NewJanitor(syncer.JanitorOpts{
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BatchSize: uint64(ko.MustInt64("indexer.batch_size")),
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HeadBlockLag: uint64(ko.MustInt64("indexer.head_block_lag")),
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Logg: lo,
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Pipeline: pipeline,
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Pool: workerPool,
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Stats: syncerStats,
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Store: pgStore,
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SweepInterval: time.Second * time.Duration(ko.MustInt64("indexer.sweep_interval")),
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})
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := headSyncer.Start(ctx); err != nil {
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lo.Fatal("head syncer error", "error", err)
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}
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}()
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wg.Add(1)
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go func() {
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defer wg.Done()
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if err := janitor.Start(ctx); err != nil {
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lo.Fatal("janitor error", "error", err)
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}
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}()
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if ko.Bool("metrics.expose") {
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metricsServer := &http.Server{
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Addr: ":9090",
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}
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wg.Add(1)
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go func() {
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defer wg.Done()
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exporter.Register(syncerStats)
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http.HandleFunc("/metrics", func(w http.ResponseWriter, _ *http.Request) {
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metrics.WritePrometheus(w, true)
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})
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if err := metricsServer.ListenAndServe(); err != nil {
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lo.Fatal("metrics server error", "error", err)
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}
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}()
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}
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<-ctx.Done()
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lo.Info("graceful shutdown triggered")
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workerPool.Stop()
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}
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