Local config, nats state visibility in logs

.env.example

@@ -1,7 +1,3 @@
-#Serve Http
-PORT=7123
-HOST=127.0.0.1
-
 #PostgreSQL
 DB_HOST=localhost
 DB_USER=postgres
@@ -19,3 +15,7 @@ DB_TIMEZONE=Africa/Nairobi
 #BALANCE_URL=/api/account/status/
 #CUSTODIAL_URL_BASE=http://localhost:5003
 #DATA_URL_BASE=http://localhost:5006
+
+#Data stream
+#NATS_JETSTREAM_URL=http://localhost:4222
+#NATS_JETSTREAM_CLIENT_NAME=omnom

cmd/main.go

@@ -9,18 +9,11 @@ import (
 
 	"git.defalsify.org/vise.git/db/mem"
 
-	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/term/config"
-	"git.grassecon.net/urdt/ussd/initializers"
 	"git.grassecon.net/term/event/nats"
 )
 
-func init() {
-	initializers.LoadEnvVariables()
-}
-
 func main() {
-	config.LoadConfig()
-
 	ctx := context.Background()
 	db := mem.NewMemDb()
 	err := db.Connect(ctx, "")
@@ -29,7 +22,7 @@ func main() {
 		os.Exit(1)
 	}
 	n := nats.NewNatsSubscription(db)
-	err = n.Connect(ctx, "localhost:4222")
+	err = n.Connect(ctx, config.JetstreamURL)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Stream connect err: %v", err)
 		os.Exit(1)

config/config.go

@@ -0,0 +1,22 @@
+package config
+
+import (
+	urdtconfig "git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
+)
+
+var (
+	JetstreamURL string
+	JetstreamClientName string
+)
+
+func init() {
+	initializers.LoadEnvVariables()
+}
+
+func LoadConfig() {
+	urdtconfig.LoadConfig()
+
+	JetstreamURL = initializers.GetEnv("NATS_JETSTREAM_URL", "localhost:4222")
+	JetstreamClientName = initializers.GetEnv("NATS_JETSTREAM_CLIENT_NAME", "omnom")
+}

event/nats/nats.go

@@ -3,6 +3,7 @@ package nats
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 
 	nats "github.com/nats-io/nats.go"
 	"github.com/nats-io/nats.go/jetstream"
@@ -11,6 +12,7 @@ import (
 	"git.defalsify.org/vise.git/db"
 	"git.grassecon.net/urdt/ussd/common"
 	"git.grassecon.net/term/event"
+	"git.grassecon.net/term/config"
 )
 
 var (
@@ -36,6 +38,19 @@ func NewNatsSubscription(store db.Db) *NatsSubscription {
 	}
 }
 
+func toServerInfo(conn *nats.Conn) string {
+	return fmt.Sprintf("%s@%s (v%s)", conn.ConnectedServerName(), conn.ConnectedUrlRedacted(), conn.ConnectedServerVersion())
+}
+
+func disconnectHandler(conn *nats.Conn, err error) {
+	logg.Errorf("nats disconnected", "status", conn.Status(), "reconnects", conn.Stats().Reconnects, "err", err)
+}
+
+func reconnectHandler(conn *nats.Conn) {
+	serverInfo := toServerInfo(conn)
+	logg.Errorf("nats reconnected", "status", conn.Status(), "reconnects", conn.Stats().Reconnects, "server", serverInfo)
+}
+
 func(n *NatsSubscription) Connect(ctx context.Context, connStr string) error {
 	var err error
 
@@ -43,19 +58,23 @@ func(n *NatsSubscription) Connect(ctx context.Context, connStr string) error {
 	if err != nil {
 		return err
 	}
+	n.conn.SetDisconnectErrHandler(disconnectHandler)
+	n.conn.SetReconnectHandler(reconnectHandler)
 	n.js, err = jetstream.New(n.conn)
 	if err != nil {
 		return err
 	}
 	n.cs, err = n.js.CreateConsumer(ctx, "TRACKER", jetstream.ConsumerConfig{
-		Name: "omnom",
+		Name: config.JetstreamClientName,
-		Durable: "omnom",
+		Durable: config.JetstreamClientName,
 		FilterSubjects: []string{"TRACKER.*"},
 	})
 	if err != nil {
 		return err
 	}
 
+	serverInfo := toServerInfo(n.conn)
+	logg.DebugCtxf(ctx, "nats connected, starting consumer", "status", n.conn.Status(), "server", serverInfo)
 	n.ctx = ctx
 	n.cctx, err = n.cs.Consume(n.handleEvent)
 	if err != nil {

go.mod

@@ -4,7 +4,7 @@ go 1.23.2
 
 require (
 	git.defalsify.org/vise.git v0.2.1-0.20241031204035-b588301738ed
-	git.grassecon.net/urdt/ussd v0.0.0-20241103143426-0506a8c452f1
+	git.grassecon.net/urdt/ussd v0.0.0-20241103151417-7189235bee57
 	github.com/grassrootseconomics/eth-tracker v1.3.0-rc
 	github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a
 	github.com/nats-io/nats.go v1.37.0

go.sum

@@ -1,7 +1,7 @@
 git.defalsify.org/vise.git v0.2.1-0.20241031204035-b588301738ed h1:4TrsfbK7NKgsa7KjMPlnV/tjYTkAAXP5PWAZzUfzCdI=
 git.defalsify.org/vise.git v0.2.1-0.20241031204035-b588301738ed/go.mod h1:jyBMe1qTYUz3mmuoC9JQ/TvFeW0vTanCUcPu3H8p4Ck=
-git.grassecon.net/urdt/ussd v0.0.0-20241103143426-0506a8c452f1 h1:uTscFuyKCqWshcN+pgoJiE0jIVzRrUrgBfI/RsiM7qE=
+git.grassecon.net/urdt/ussd v0.0.0-20241103151417-7189235bee57 h1:JKfbF1EY21ChL1ck/WTsdNS05orMiIgJ7LQETwqc3jA=
-git.grassecon.net/urdt/ussd v0.0.0-20241103143426-0506a8c452f1/go.mod h1:ADB/wpwvI6umvYzGqpJGm/GYj8msxYGiczzWCCdXegs=
+git.grassecon.net/urdt/ussd v0.0.0-20241103151417-7189235bee57/go.mod h1:ADB/wpwvI6umvYzGqpJGm/GYj8msxYGiczzWCCdXegs=
 github.com/alecthomas/assert/v2 v2.2.2 h1:Z/iVC0xZfWTaFNE6bA3z07T86hd45Xe2eLt6WVy2bbk=
 github.com/alecthomas/assert/v2 v2.2.2/go.mod h1:pXcQ2Asjp247dahGEmsZ6ru0UVwnkhktn7S0bBDLxvQ=
 github.com/alecthomas/repr v0.2.0 h1:HAzS41CIzNW5syS8Mf9UwXhNH1J9aix/BvDRf1Ml2Yk=