mirror of
https://github.com/christianselig/apollo-backend
synced 2024-11-25 13:17:42 +00:00
fixups
This commit is contained in:
Andre Medeiros
parent
56cbf6b4ce
commit
147f1e924c
2 changed files with 1 additions and 231 deletions
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@ -352,7 +352,7 @@ func (c *Consumer) Consume(delivery rmq.Delivery) {
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stmt = `
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SELECT apns_token, sandbox
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FROM devices
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LEFT JOIN devices_accounts ON devices.id = devices_accounts.device_id
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INNER JOIN devices_accounts ON devices.id = devices_accounts.device_id
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WHERE devices_accounts.account_id = $1`
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rows, err := c.pool.Query(ctx, stmt, account.ID)
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if err != nil {
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@ -1,230 +0,0 @@
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package main
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import (
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"database/sql"
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"fmt"
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"log"
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"os"
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"os/signal"
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"runtime"
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"syscall"
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"time"
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"github.com/DataDog/datadog-go/statsd"
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_ "github.com/heroku/x/hmetrics/onload"
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"github.com/joho/godotenv"
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_ "github.com/lib/pq"
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"github.com/sideshow/apns2"
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"github.com/sideshow/apns2/payload"
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"github.com/sideshow/apns2/token"
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"github.com/christianselig/apollo-backend/internal/data"
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"github.com/christianselig/apollo-backend/internal/reddit"
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)
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type application struct {
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logger *log.Logger
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db *sql.DB
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models *data.Models
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client *reddit.Client
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}
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var (
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workers int = runtime.NumCPU() * 4
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rate float64 = 0.1
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backoff int = 5
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)
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func accountWorker(id int, rc *reddit.Client, db *sql.DB, logger *log.Logger, statsd *statsd.Client, quit chan bool) {
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authKey, err := token.AuthKeyFromBytes([]byte(os.Getenv("APPLE_KEY_PKEY")))
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token := &token.Token{
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AuthKey: authKey,
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KeyID: os.Getenv("APPLE_KEY_ID"),
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TeamID: os.Getenv("APPLE_TEAM_ID"),
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}
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if err != nil {
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log.Fatal("token error:", err)
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}
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sandboxClient := apns2.NewTokenClient(token)
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productionClient := apns2.NewTokenClient(token).Production()
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for {
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select {
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case <-quit:
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return
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default:
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now := float64(time.Now().UTC().UnixNano()/int64(time.Millisecond)) / 1000
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tx, err := db.Begin()
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if err != nil {
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log.Fatal(err)
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continue
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}
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t1 := time.Now()
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query := `
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SELECT id, username, access_token, refresh_token, expires_at, last_message_id, last_checked_at FROM accounts
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WHERE last_checked_at + 5 <= $1::float
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ORDER BY last_checked_at
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LIMIT 1
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FOR UPDATE SKIP LOCKED`
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args := []interface{}{now}
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account := &data.Account{}
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err = tx.QueryRow(query, args...).Scan(&account.ID, &account.Username, &account.AccessToken, &account.RefreshToken, &account.ExpiresAt, &account.LastMessageID, &account.LastCheckedAt)
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t2 := time.Now()
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statsd.Histogram("apollo.dequeue.latency", float64(t2.Sub(t1).Milliseconds()), []string{}, rate)
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if account.ID == 0 {
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tx.Commit()
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time.Sleep(10 * time.Millisecond)
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continue
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}
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if account.LastCheckedAt > 0 {
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latency := now - account.LastCheckedAt - float64(backoff)
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statsd.Histogram("apollo.queue.delay", latency, []string{}, rate)
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}
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_, err = tx.Exec(`UPDATE accounts SET last_checked_at = $1 WHERE id = $2`, now, account.ID)
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rac := rc.NewAuthenticatedClient(account.RefreshToken, account.AccessToken)
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if account.ExpiresAt < int64(now) {
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tokens, _ := rac.RefreshTokens()
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tx.Exec(`UPDATE accounts SET access_token = $1, refresh_token = $2, expires_at = $3 WHERE id = $4`,
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tokens.AccessToken, tokens.RefreshToken, int64(now+3500), account.ID)
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}
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t1 = time.Now()
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msgs, err := rac.MessageInbox(account.LastMessageID)
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t2 = time.Now()
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statsd.Histogram("reddit.api.latency", float64(t2.Sub(t1).Milliseconds()), []string{}, rate)
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if err != nil {
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log.Fatal(err)
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}
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if len(msgs.MessageListing.Messages) == 0 {
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tx.Commit()
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continue
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}
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// Set latest message we alerted on
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latestMsg := msgs.MessageListing.Messages[0]
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latency := now - latestMsg.CreatedAt
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statsd.Histogram("apollo.notification.latency", latency, []string{}, rate)
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_, err = tx.Exec(`UPDATE accounts SET last_message_id = $1 WHERE id = $2`, latestMsg.FullName(), account.ID)
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if err != nil {
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log.Fatal(err)
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}
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// If no latest message recorded, we're not going to notify on every message. Remember that and move on.
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if account.LastMessageID == "" {
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tx.Commit()
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continue
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}
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query = `
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SELECT apns_token, sandbox FROM devices
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LEFT JOIN devices_accounts ON devices.id = devices_accounts.device_id
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WHERE devices_accounts.account_id = $1`
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rows, err := tx.Query(query, account.ID)
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if err != nil {
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logger.Fatal(err)
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}
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defer rows.Close()
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devices := []data.Device{}
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for rows.Next() {
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device := data.Device{}
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rows.Scan(&device.APNSToken, &device.Sandbox)
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devices = append(devices, device)
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}
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for _, msg := range msgs.MessageListing.Messages {
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for _, device := range devices {
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notification := &apns2.Notification{}
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notification.DeviceToken = device.APNSToken
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notification.Topic = "com.christianselig.Apollo"
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notification.Payload = payload.NewPayload().AlertTitle(msg.Subject).AlertBody(msg.Body)
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client := productionClient
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if device.Sandbox {
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client = sandboxClient
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}
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t1 := time.Now()
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res, err := client.Push(notification)
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t2 := time.Now()
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statsd.Histogram("apns.notification.latency", float64(t2.Sub(t1).Milliseconds()), []string{}, float64(1))
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if err != nil {
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statsd.Incr("apns.notification.errors", []string{}, float64(1))
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logger.Printf("apns error account=%s token=%s err=%s status=%d reason=%q", account.Username, device.APNSToken, err, res.StatusCode, res.Reason)
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} else {
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statsd.Incr("apns.notification.sent", []string{}, float64(1))
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logger.Printf("apns success account=%s token=%s", account.Username, device.APNSToken)
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}
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}
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}
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tx.Commit()
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}
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}
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}
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func main() {
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logger := log.New(os.Stdout, "", log.Ldate|log.Ltime)
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if err := godotenv.Load(); err != nil {
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logger.Printf("Couldn't find .env so I will read from existing ENV.")
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}
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dburl, ok := os.LookupEnv("DATABASE_CONNECTION_POOL_URL")
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if !ok {
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dburl = os.Getenv("DATABASE_URL")
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}
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db, err := sql.Open("postgres", fmt.Sprintf("%s?binary_parameters=yes", dburl))
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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logger.Printf("Starting with %d workers.", workers)
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db.SetMaxOpenConns(workers * 2)
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db.SetMaxIdleConns(workers)
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db.SetConnMaxLifetime(time.Hour)
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statsd, err := statsd.New("127.0.0.1:8125")
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if err != nil {
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log.Fatal(err)
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}
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rc := reddit.NewClient(
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os.Getenv("REDDIT_CLIENT_ID"),
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os.Getenv("REDDIT_CLIENT_SECRET"),
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statsd,
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)
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// This is a very conservative value -- seen as most of the work that is done in these jobs is
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// waiting around for IO.
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runtime.GOMAXPROCS(workers + 2) // + 2 for main thread and GC.
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quitCh := make(chan bool, workers)
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for i := 0; i < workers; i++ {
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go accountWorker(i, rc, db, logger, statsd, quitCh)
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}
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sigs := make(chan os.Signal, 1)
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signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
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<-sigs
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for i := 0; i < workers; i++ {
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quitCh <- true
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}
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os.Exit(0)
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}
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