[hw-5] concurrency, graceful shutdown, concurrent tests

2025-10-30 14:03:45 +03:00 · 2025-07-06 20:52:27 +00:00
parent dbf8aaedcf
commit 84201fe495
23 changed files with 742 additions and 157 deletions
--- a/cart/cmd/server/main.go
+++ b/cart/cmd/server/main.go
@@ -1,7 +1,14 @@
 package main

 import (
+	"context"
+	"net/http"
 	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/rs/zerolog/log"

 	"route256/cart/internal/app"
 )
@@ -9,10 +16,27 @@ import (
 func main() {
 	srv, err := app.NewApp(os.Getenv("CONFIG_FILE"))
 	if err != nil {
-		panic(err)
+		log.Fatal().Err(err).Msg("failed creating app")
 	}

-	if err := srv.ListenAndServe(); err != nil {
-		panic(err)
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	go func() {
+		if err := srv.ListenAndServe(ctx); err != nil && err != http.ErrServerClosed {
+			log.Fatal().Err(err).Msg("serving error")
+		}
+	}()
+
+	<-ctx.Done()
+	log.Info().Msg("shutdown signal received")
+
+	shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	if err := srv.Shutdown(shutdownCtx); err != nil {
+		log.Error().Err(err).Msg("graceful shutdown failed")
+	} else {
+		log.Info().Msg("server stopped gracefully")
 	}
 }
--- a/cart/go.mod
+++ b/cart/go.mod
@@ -3,27 +3,71 @@ module route256/cart
 go 1.23.9

 require (
+	github.com/ozontech/allure-go/pkg/framework v0.6.34
 	github.com/rs/zerolog v1.34.0
 	github.com/stretchr/testify v1.10.0
-	google.golang.org/grpc v1.72.0
+	github.com/testcontainers/testcontainers-go v0.37.0
+	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8
+	google.golang.org/grpc v1.72.2
 	gopkg.in/yaml.v3 v3.0.1
 )

 require (
+	dario.cat/mergo v1.0.1 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
+	github.com/cpuguy83/dockercfg v0.3.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/docker v28.0.1+incompatible // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/ebitengine/purego v0.8.4 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.8 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/google/go-cmp v0.7.0 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/klauspost/compress v1.17.4 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.10 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/sys/user v0.1.0 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.1 // indirect
+	github.com/ozontech/allure-go/pkg/allure v0.6.14 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/rogpeppe/go-internal v1.13.1 // indirect
-	go.opentelemetry.io/otel v1.36.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.36.0 // indirect
-	golang.org/x/crypto v0.37.0 // indirect
-	golang.org/x/net v0.39.0 // indirect
-	golang.org/x/text v0.24.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/shirou/gopsutil/v4 v4.25.1 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.37.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.37.0 // indirect
+	go.opentelemetry.io/otel/metric v1.37.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.37.0 // indirect
+	go.opentelemetry.io/otel/trace v1.37.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.7.0 // indirect
+	golang.org/x/crypto v0.38.0 // indirect
+	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 )
@@ -33,5 +77,6 @@ require (
 	github.com/gojuno/minimock/v3 v3.4.5
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
+	go.uber.org/goleak v1.3.0
 	golang.org/x/sys v0.33.0 // indirect
 )
--- a/cart/go.sum
+++ b/cart/go.sum
@@ -1,13 +1,46 @@
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
+github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
+github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
+github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpSBQv6A=
+github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA=
+github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
+github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
+github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
+github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
+github.com/docker/docker v28.0.1+incompatible h1:FCHjSRdXhNRFjlHMTv4jUNlIBbTeRjrWfeFuJp7jpo0=
+github.com/docker/docker v28.0.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/go-connections v0.5.0 h1:USnMq7hx7gwdVZq1L49hLXaFtUdTADjXGp+uj1Br63c=
+github.com/docker/go-connections v0.5.0/go.mod h1:ov60Kzw0kKElRwhNs9UlUHAE/F9Fe6GLaXnqyDdmEXc=
+github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
+github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/ebitengine/purego v0.8.4 h1:CF7LEKg5FFOsASUj0+QwaXf8Ht6TlFxg09+S9wz0omw=
+github.com/ebitengine/purego v0.8.4/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
+github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM=
 github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
 github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
@@ -17,68 +50,172 @@ github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91
 github.com/go-playground/validator/v10 v10.26.0 h1:SP05Nqhjcvz81uJaRfEV0YBSSSGMc/iMaVtFbr3Sw2k=
 github.com/go-playground/validator/v10 v10.26.0/go.mod h1:I5QpIEbmr8On7W0TktmJAumgzX4CA1XNl4ZmDuVHKKo=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
+github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/gojuno/minimock/v3 v3.4.5 h1:Jcb0tEYZvVlQNtAAYpg3jCOoSwss2c1/rNugYTzj304=
 github.com/gojuno/minimock/v3 v3.4.5/go.mod h1:o9F8i2IT8v3yirA7mmdpNGzh1WNesm6iQakMtQV6KiE=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
+github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
+github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/klauspost/compress v1.17.4 h1:Ej5ixsIri7BrIjBkRZLTo6ghwrEtHFk7ijlczPW4fZ4=
+github.com/klauspost/compress v1.17.4/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
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+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
+github.com/magiconair/properties v1.8.10 h1:s31yESBquKXCV9a/ScB3ESkOjUYYv+X0rg8SYxI99mE=
+github.com/magiconair/properties v1.8.10/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
+github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
+github.com/moby/patternmatcher v0.6.0 h1:GmP9lR19aU5GqSSFko+5pRqHi+Ohk1O69aFiKkVGiPk=
+github.com/moby/patternmatcher v0.6.0/go.mod h1:hDPoyOpDY7OrrMDLaYoY3hf52gNCR/YOUYxkhApJIxc=
+github.com/moby/sys/sequential v0.5.0 h1:OPvI35Lzn9K04PBbCLW0g4LcFAJgHsvXsRyewg5lXtc=
+github.com/moby/sys/sequential v0.5.0/go.mod h1:tH2cOOs5V9MlPiXcQzRC+eEyab644PWKGRYaaV5ZZlo=
+github.com/moby/sys/user v0.1.0 h1:WmZ93f5Ux6het5iituh9x2zAG7NFY9Aqi49jjE1PaQg=
+github.com/moby/sys/user v0.1.0/go.mod h1:fKJhFOnsCN6xZ5gSfbM6zaHGgDJMrqt9/reuj4T7MmU=
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 google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a h1:v2PbRU4K3llS09c7zodFpNePeamkAwG3mPrAery9VeE=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
-google.golang.org/grpc v1.72.0 h1:S7UkcVa60b5AAQTaO6ZKamFp1zMZSU0fGDK2WZLbBnM=
-google.golang.org/grpc v1.72.0/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
+google.golang.org/grpc v1.72.2 h1:TdbGzwb82ty4OusHWepvFWGLgIbNo1/SUynEN0ssqv8=
+google.golang.org/grpc v1.72.2/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
 google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
 google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU=
+gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU=
--- a/cart/internal/app/app.go
+++ b/cart/internal/app/app.go
@@ -1,6 +1,7 @@
 package app

 import (
+	"context"
 	"fmt"
 	"net"
 	"net/http"
@@ -68,7 +69,11 @@ func NewApp(configPath string) (*App, error) {
 	return app, nil
 }

-func (app *App) ListenAndServe() error {
+func (app *App) Shutdown(ctx context.Context) error {
+	return app.server.Shutdown(ctx)
+}
+
+func (app *App) ListenAndServe(_ context.Context) error {
 	address := fmt.Sprintf("%s:%s", app.config.Service.Host, app.config.Service.Port)

 	l, err := net.Listen("tcp", address)
@@ -96,6 +101,9 @@ func (app *App) setupCartService() (*service.CartService, error) {
 		httpClient,
 		app.config.ProductService.Token,
 		fmt.Sprintf("%s:%s", app.config.ProductService.Host, app.config.ProductService.Port),
+		app.config.ProductService.Limit,
+		app.config.ProductService.Burst,
+		app.config.Service.Workers,
 	)

 	// LOMS service client
--- a/cart/internal/clients/loms/service.go
+++ b/cart/internal/clients/loms/service.go
--- a/cart/internal/clients/products/service.go
+++ b/cart/internal/clients/products/service.go
@@ -10,23 +10,40 @@ import (

 	"route256/cart/internal/domain/entity"
 	"route256/cart/internal/domain/model"
+	"route256/cart/internal/infra/errgroup"
+
+	"github.com/rs/zerolog/log"
+	"golang.org/x/time/rate"
 )

 type ProductService struct {
 	httpClient http.Client
 	token      string
 	address    string
+
+	limiter *rate.Limiter
+
+	workers int
 }

-func NewProductService(httpClient http.Client, token string, address string) *ProductService {
+func NewProductService(httpClient http.Client, token, address string, limitRPS, burst, workers int) *ProductService {
+	log.Debug().Msgf("creating product server with %d worker limit", workers)
+
 	return &ProductService{
 		httpClient: httpClient,
 		token:      token,
 		address:    address,
+
+		limiter: rate.NewLimiter(rate.Limit(limitRPS), burst),
+		workers: workers,
 	}
 }

 func (s *ProductService) GetProductBySku(ctx context.Context, sku entity.Sku) (*model.Product, error) {
+	if err := s.limiter.Wait(ctx); err != nil {
+		return nil, fmt.Errorf("limiter.Wait: %w", err)
+	}
+
 	ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
 	defer cancel()

@@ -73,3 +90,32 @@ type GetProductResponse struct {
 	Price int32  `json:"price"`
 	Sku   int64  `json:"sku"`
 }
+
+func (s *ProductService) GetProducts(ctx context.Context, skus []entity.Sku) ([]*model.Product, error) {
+	if len(skus) == 0 {
+		return []*model.Product{}, nil
+	}
+
+	results := make([]*model.Product, len(skus))
+
+	g, _ := errgroup.WithContext(ctx, s.workers)
+
+	for i, sku := range skus {
+		g.Go(func(groupCtx context.Context) error {
+			p, err := s.GetProductBySku(groupCtx, sku)
+			if err != nil {
+				return err
+			}
+
+			results[i] = p
+
+			return nil
+		})
+	}
+
+	if err := g.Wait(); err != nil {
+		return nil, err
+	}
+
+	return results, nil
+}
--- a/cart/internal/domain/repository/in_memory_repository_test.go
+++ b/cart/internal/domain/repository/in_memory_repository_test.go
@@ -2,15 +2,21 @@ package repository

 import (
 	"context"
+	"sync"
 	"testing"

-	"route256/cart/internal/domain/entity"
-	"route256/cart/internal/domain/model"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"
+
+	"route256/cart/internal/domain/entity"
+	"route256/cart/internal/domain/model"
 )

+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
+
 func TestAddItem(t *testing.T) {
 	t.Parallel()

@@ -267,3 +273,135 @@ func TestDeleteItemsByUserID(t *testing.T) {

 	assert.Len(t, repo.storage, 0, "check storage length")
 }
+
+func TestConcurrent_AddItemSameSku(t *testing.T) {
+	t.Parallel()
+
+	const (
+		goroutines = 100
+		userID     = entity.UID(42)
+		sku        = entity.Sku(777)
+	)
+
+	repo := NewInMemoryRepository(1)
+	ctx := context.Background()
+
+	var wg sync.WaitGroup
+
+	wg.Add(goroutines)
+
+	for i := 0; i < goroutines; i++ {
+		go func() {
+			defer wg.Done()
+
+			item := &model.Item{
+				Product: &model.Product{Sku: sku},
+				Count:   1,
+			}
+			require.NoError(t, repo.AddItem(ctx, userID, item))
+		}()
+	}
+
+	wg.Wait()
+
+	cart, err := repo.GetItemsByUserID(ctx, userID)
+	require.NoError(t, err)
+
+	assert.Len(t, cart.Items, 1, "only one item should exist")
+	assert.Equal(t, uint32(goroutines), cart.ItemCount[sku], "wrong count")
+}
+
+func TestConcurrent_AddItemDifferentUsers(t *testing.T) {
+	t.Parallel()
+
+	const (
+		users       = 50
+		addsPerUser = 10
+	)
+
+	repo := NewInMemoryRepository(users)
+	ctx := context.Background()
+
+	var wg sync.WaitGroup
+
+	for u := 0; u < users; u++ {
+		uid := entity.UID(u)
+		wg.Add(1)
+
+		go func(id entity.UID) {
+			defer wg.Done()
+
+			for i := 0; i < addsPerUser; i++ {
+				item := &model.Item{
+					Product: &model.Product{Sku: entity.Sku(i)},
+					Count:   1,
+				}
+				require.NoError(t, repo.AddItem(ctx, id, item))
+			}
+		}(uid)
+	}
+
+	wg.Wait()
+
+	for u := 0; u < users; u++ {
+		uid := entity.UID(u)
+		cart, err := repo.GetItemsByUserID(ctx, uid)
+		require.NoError(t, err)
+
+		assert.Lenf(t, cart.Items, addsPerUser, "user %d has wrong item count", u)
+		for i := 0; i < addsPerUser; i++ {
+			sku := entity.Sku(i)
+			assert.Equalf(t, uint32(1), cart.ItemCount[sku], "user %d: sku %d count", u, sku)
+		}
+	}
+}
+
+func TestConcurrent_AddAndRead(t *testing.T) {
+	t.Parallel()
+
+	repo := NewInMemoryRepository(1)
+	ctx := context.Background()
+	uid := entity.UID(1)
+	sku := entity.Sku(9)
+
+	const (
+		writerGoroutines = 20
+		readerGoroutines = 20
+		iterations       = 100
+	)
+
+	var wg sync.WaitGroup
+
+	for i := 0; i < writerGoroutines; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for j := 0; j < iterations; j++ {
+				item := &model.Item{
+					Product: &model.Product{Sku: sku},
+					Count:   1,
+				}
+				require.NoError(t, repo.AddItem(ctx, uid, item))
+			}
+		}()
+	}
+
+	for i := 0; i < readerGoroutines; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for j := 0; j < iterations; j++ {
+				_, err := repo.GetItemsByUserID(ctx, uid)
+				require.NoError(t, err)
+			}
+		}()
+	}
+
+	wg.Wait()
+
+	cart, err := repo.GetItemsByUserID(ctx, uid)
+	require.NoError(t, err)
+	expected := uint32(writerGoroutines * iterations)
+
+	assert.Equal(t, expected, cart.ItemCount[sku], "wrong item count")
+}
--- a/cart/internal/domain/service/service.go
+++ b/cart/internal/domain/service/service.go
@@ -4,9 +4,6 @@ import (
 	"context"
 	"fmt"
 	"slices"
-	"sync"
-
-	"github.com/rs/zerolog/log"

 	"route256/cart/internal/domain/entity"
 	"route256/cart/internal/domain/model"
@@ -22,6 +19,7 @@ type Repository interface {

 type ProductService interface {
 	GetProductBySku(ctx context.Context, sku entity.Sku) (*model.Product, error)
+	GetProducts(ctx context.Context, skus []entity.Sku) ([]*model.Product, error)
 }

 type LomsService interface {
@@ -77,9 +75,6 @@ func (s *CartService) AddItem(ctx context.Context, userID entity.UID, item *mode
 // GetUserCart gets all user cart's item ids, gets the item description from the product-service
 // and return a list of the collected items.
 // In case of failed request to product-service, return nothing and error.
-//
-// TODO: add worker group, BUT it's OK for now,
-// assuming user does not have hundreds of different items in his cart.
 func (s *CartService) GetItemsByUserID(ctx context.Context, userID entity.UID) (*model.Cart, error) {
 	if userID <= 0 {
 		return nil, fmt.Errorf("userID invalid")
@@ -99,65 +94,31 @@ func (s *CartService) GetItemsByUserID(ctx context.Context, userID entity.UID) (

 	resultCart := &model.Cart{
 		UserID:     userID,
-		Items:      make([]*model.Item, len(cart.Items)),
+		Items:      make([]*model.Item, 0, len(cart.Items)),
 		TotalPrice: 0,
 	}

-	errCh := make(chan error, 1)
-
-	var (
-		wg       sync.WaitGroup
-		sumMutex sync.Mutex
-	)
-
-	for idx, sku := range cart.Items {
-		wg.Add(1)
-
-		go func(sku entity.Sku, count uint32, idx int) {
-			defer wg.Done()
-
-			product, err := s.productService.GetProductBySku(ctx, sku)
+	products, err := s.productService.GetProducts(ctx, cart.Items)
 	if err != nil {
-				select {
-				case errCh <- fmt.Errorf("productService.GetProductBySku: %w", err):
-				case <-ctx.Done():
-				}
-
-				log.Error().Err(err).Msg("productService.GetProductBySku")
-
-				return
-			}
-
-			resultCart.Items[idx] = &model.Item{
-				Product: product,
-				Count:   count,
-			}
-
-			sumMutex.Lock()
-			resultCart.TotalPrice += uint32(product.Price) * count
-			sumMutex.Unlock()
-		}(sku, cart.ItemCount[sku], idx)
-	}
-
-	doneCh := make(chan struct{})
-	go func() {
-		wg.Wait()
-
-		close(doneCh)
-	}()
-
-	select {
-	case err := <-errCh:
-		cancel()
-
 		return nil, err
-	case <-doneCh:
+	}
+
+	for _, product := range products {
+		cnt := cart.ItemCount[product.Sku]
+
+		resultCart.Items = append(resultCart.Items, &model.Item{
+			Product: product,
+			Count:   cnt,
+		})
+
+		resultCart.TotalPrice += cnt * uint32(product.Price)
+	}
+
 	slices.SortStableFunc(resultCart.Items, func(a, b *model.Item) int {
 		return int(a.Product.Sku - b.Product.Sku)
 	})

 	return resultCart, nil
-	}
 }

 func (s *CartService) DeleteItem(ctx context.Context, userID entity.UID, sku entity.Sku) error {
--- a/cart/internal/domain/service/service_test.go
+++ b/cart/internal/domain/service/service_test.go
@@ -8,6 +8,7 @@ import (
 	"github.com/gojuno/minimock/v3"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"

 	"route256/cart/internal/domain/entity"
 	"route256/cart/internal/domain/model"
@@ -33,6 +34,21 @@ func (f *productServiceFake) GetProductBySku(_ context.Context, sku entity.Sku)
 	}, nil
 }

+func (f *productServiceFake) GetProducts(ctx context.Context, skus []entity.Sku) ([]*model.Product, error) {
+	res := make([]*model.Product, len(skus))
+
+	for i, sku := range skus {
+		prod, err := f.GetProductBySku(ctx, sku)
+		if err != nil {
+			return nil, err
+		}
+
+		res[i] = prod
+	}
+
+	return res, nil
+}
+
 type lomsServiceFake struct{}

 func (f *lomsServiceFake) StocksInfo(_ context.Context, sku entity.Sku) (uint32, error) {
@@ -51,6 +67,10 @@ func (f *lomsServiceFake) OrderCreate(_ context.Context, cart *model.Cart) (int6
 	return 1234, nil
 }

+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
+
 func TestCartService_AddItem(t *testing.T) {
 	t.Parallel()

--- a/cart/internal/infra/errgroup/errgroup.go
+++ b/cart/internal/infra/errgroup/errgroup.go
@@ -0,0 +1,62 @@
+package errgroup
+
+import (
+	"context"
+	"sync"
+)
+
+type Group struct {
+	ctx    context.Context
+	cancel context.CancelFunc
+
+	wg sync.WaitGroup
+
+	firstErr chan error
+
+	// Used to limit number of goroutines (workers) for group.
+	workerLimCh chan struct{}
+}
+
+func WithContext(parent context.Context, workers int) (*Group, context.Context) {
+	ctx, cancel := context.WithCancel(parent)
+	return &Group{
+		ctx:         ctx,
+		cancel:      cancel,
+		firstErr:    make(chan error, 1),
+		workerLimCh: make(chan struct{}, workers),
+	}, ctx
+}
+
+func (g *Group) Go(f func(ctx context.Context) error) {
+	// Wait for worker to be freed.
+	g.workerLimCh <- struct{}{}
+
+	g.wg.Add(1)
+	go func() {
+		defer func() {
+			g.wg.Done()
+
+			<-g.workerLimCh // release worker
+		}()
+
+		if err := f(g.ctx); err != nil {
+			select {
+			case g.firstErr <- err:
+				g.cancel()
+			default: // got error from other goroutine
+			}
+		}
+	}()
+}
+
+func (g *Group) Wait() error {
+	g.wg.Wait()
+	g.cancel()
+
+	select {
+	case err := <-g.firstErr:
+		return err
+	default:
+		return nil
+	}
+}
--- a/cart/tests/integration/cart_integration_test.go
+++ b/cart/tests/integration/cart_integration_test.go
@@ -17,6 +17,7 @@ import (
 	"github.com/ozontech/allure-go/pkg/framework/suite"
 	"github.com/testcontainers/testcontainers-go"
 	"github.com/testcontainers/testcontainers-go/wait"
+	"go.uber.org/goleak"
 	"google.golang.org/grpc"

 	"route256/cart/internal/app"
@@ -64,6 +65,8 @@ type CartHandlerSuite struct {
 }

 func TestCartHandlerSuite(t *testing.T) {
+	defer goleak.VerifyNone(t)
+
 	suite.RunSuite(t, new(CartHandlerSuite))
 }

@@ -111,6 +114,9 @@ func (s *CartHandlerSuite) BeforeAll(t provider.T) {
 			*http.DefaultClient,
 			testToken,
 			productURL,
+			10,
+			10,
+			10,
 		)

 		lomsClient := pbLoms.NewLOMSClient(s.lomsConn)
--- a/docs/README.md
+++ b/docs/README.md
@@ -18,3 +18,4 @@
 2. [Тестирование в Go](./homework-2)
 3. [Межсервисное взаимодействие и основы эксплуатации](./homework-3)
 4. [Базы данных](./homework-4)
+5. [Многопоточное программирование](./homework-5)
--- a/docs/homework-5/README.md
+++ b/docs/homework-5/README.md
@@ -0,0 +1,35 @@
+# Домашнее задание по модулю "Многопоточное программирование"
+
+## Основное задание
+
+Уменьшить время ответа cart.list.
+    - Распараллельные вызовы ручки http://route256.pavl.uk:8080/docs/#/ProductService/ProductService_GetProduct продакт
+      сервиса
+    - Самим написать аналог https://pkg.go.dev/golang.org/x/sync/errgroup и использовать его
+    - В случае ошибки - отменять все текущие запросы и вернуть ошибку из errgroup
+    - При общении с Product Service необходимо использовать лимит 10 RPS на клиентской стороне
+    - Группа живет в рамках одного запроса = группа не переиспользуется между запросами
+    - in-memory репозитории защитить мьютексами
+
+## Дополнительное задание
+
+- Тесты на многопоточность in-memory репозитория
+- Грейсфул завершение приложения (использовать signal.Notify)
+- Контроль утечек (горутин через https://github.com/uber-go/goleak)
+- Контроль рейзов (через тесты с флагом -race)
+- Реализовать параллельный запуск тестов
+
+## Автоматические проверки
+
+Ваше решение должно проходить автоматические проверки:
+
+- Компиляция
+- Линтер
+- Unit-тесты
+- Code coverage >40%
+- Автотесты
+
+Прохождение автоматических проверок влияет на итоговую оценку за домашнюю работу.
+
+### Дедлайны сдачи и проверки задания:
+- 28 июня 23:59 (сдача) / 1 июля, 23:59 (проверка)
--- a/go.work.sum
+++ b/go.work.sum
@@ -10,8 +10,7 @@ github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmO
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cncf/xds/go v0.0.0-20250326154945-ae57f3c0d45f/go.mod h1:W+zGtBO5Y1IgJhy4+A9GOqVhqLpfZi+vwmdNXUehLA8=
 github.com/coder/websocket v1.8.13/go.mod h1:LNVeNrXQZfe5qhS9ALED3uA+l5pPqvwXg3CKoDBB2gs=
-github.com/ebitengine/purego v0.8.4 h1:CF7LEKg5FFOsASUj0+QwaXf8Ht6TlFxg09+S9wz0omw=
-github.com/ebitengine/purego v0.8.4/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/elastic/go-sysinfo v1.15.3/go.mod h1:K/cNrqYTDrSoMh2oDkYEMS2+a72GRxMvNP+GC+vRIlo=
 github.com/elastic/go-windows v1.0.2/go.mod h1:bGcDpBzXgYSqM0Gx3DM4+UxFj300SZLixie9u9ixLM8=
 github.com/envoyproxy/go-control-plane v0.13.4/go.mod h1:kDfuBlDVsSj2MjrLEtRWtHlsWIFcGyB2RMO44Dc5GZA=
@@ -58,6 +57,7 @@ github.com/zeebo/errs v1.4.0/go.mod h1:sgbWHsvVuTPHcqJJGQ1WhI5KbWlHYz+2+2C/LSEtC
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 go.opentelemetry.io/contrib/detectors/gcp v1.35.0/go.mod h1:qGWP8/+ILwMRIUf9uIVLloR1uo5ZYAslM4O6OqUi1DA=
 go.opentelemetry.io/otel/sdk v1.19.0/go.mod h1:NedEbbS4w3C6zElbLdPJKOpJQOrGUJ+GfzpjUvI0v1A=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
@@ -69,6 +69,8 @@ golang.org/x/oauth2 v0.28.0/go.mod h1:onh5ek6nERTohokkhCD/y2cV4Do3fxFHFuAejCkRWT
 golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610=
+golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457/go.mod h1:pRgIJT+bRLFKnoM1ldnzKoxTIn14Yxz928LQRYYgIN0=
@@ -77,11 +79,9 @@ golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/tools v0.26.0/go.mod h1:TPVVj70c7JJ3WCazhD8OdXcZg/og+b9+tH/KxylGwH0=
 google.golang.org/genproto/googleapis/api v0.0.0-20250324211829-b45e905df463/go.mod h1:U90ffi8eUL9MwPcrJylN5+Mk2v3vuPDptd5yyNUiRR8=
-google.golang.org/genproto/googleapis/api v0.0.0-20250528174236-200df99c418a/go.mod h1:a77HrdMjoeKbnd2jmgcWdaS++ZLZAEq3orIOAEIKiVw=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250324211829-b45e905df463/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.64.1/go.mod h1:hiQF4LFZelK2WKaP6W0L92zGHtiQdZxk8CrSdvyjeP0=
 google.golang.org/grpc v1.71.0/go.mod h1:H0GRtasmQOh9LkFoCPDu3ZrwUtD1YGE+b2vYBYd/8Ec=
-google.golang.org/grpc v1.72.2/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
 google.golang.org/grpc/examples v0.0.0-20230224211313-3775f633ce20/go.mod h1:Nr5H8+MlGWr5+xX/STzdoEqJrO+YteqFbMyCsrb6mH0=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
--- a/loms/cmd/server/main.go
+++ b/loms/cmd/server/main.go
@@ -1,7 +1,14 @@
 package main

 import (
+	"context"
+	"net/http"
 	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/rs/zerolog/log"

 	"route256/loms/internal/app"
 )
@@ -9,10 +16,27 @@ import (
 func main() {
 	srv, err := app.NewApp(os.Getenv("CONFIG_FILE"))
 	if err != nil {
-		panic(err)
+		log.Fatal().Err(err).Msg("failed creating app")
 	}

-	if err := srv.ListenAndServe(); err != nil {
-		panic(err)
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	go func() {
+		if err := srv.ListenAndServe(ctx); err != nil && err != http.ErrServerClosed {
+			log.Fatal().Err(err).Msg("serving error")
+		}
+	}()
+
+	<-ctx.Done()
+	log.Info().Msg("shutdown signal received")
+
+	shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	if err := srv.Shutdown(shutdownCtx); err != nil {
+		log.Error().Err(err).Msg("graceful shutdown failed")
+	} else {
+		log.Info().Msg("server stopped gracefully")
 	}
 }
--- a/loms/db/migrations/00003_add_stocks.sql
+++ b/loms/db/migrations/00003_add_stocks.sql
@@ -8,7 +8,15 @@ VALUES
  (135717466, 100, 20),
  (135937324, 100, 30),
  (1625903, 10000, 0),
-  (1148162, 100, 0);
+  (1148162, 100, 0),
+  (2958025, 100, 0),
+  (3596599, 100, 0),
+  (3618852, 100, 0),
+  (4288068, 100, 0),
+  (4465995, 100, 0),
+  (30816475, 100, 0),
+  (2618151, 100, 0);
+

 -- +goose Down
 DELETE FROM stocks
@@ -20,5 +28,12 @@ WHERE
    135717466,
    135937324,
    1625903,
-    1148162
+    1148162,
+    2958025,
+    3596599,
+    3618852,
+    4288068,
+    4465995,
+    30816475,
+    2618151
  );
--- a/loms/go.mod
+++ b/loms/go.mod
@@ -5,6 +5,7 @@ go 1.23.9
 require (
 	github.com/gojuno/minimock/v3 v3.4.5
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3
+	github.com/jackc/pgx v3.6.2+incompatible
 	github.com/jackc/pgx/v5 v5.7.5
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/ozontech/allure-go/pkg/framework v0.6.34
@@ -12,6 +13,7 @@ require (
 	github.com/rs/zerolog v1.34.0
 	github.com/stretchr/testify v1.10.0
 	github.com/testcontainers/testcontainers-go v0.37.0
+	go.uber.org/goleak v1.3.0
 	google.golang.org/grpc v1.73.0
 	google.golang.org/protobuf v1.36.6
 	gopkg.in/yaml.v3 v3.0.1
@@ -22,6 +24,7 @@ require (
 	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cockroachdb/apd v1.1.0 // indirect
 	github.com/containerd/log v0.1.0 // indirect
 	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/cpuguy83/dockercfg v0.3.2 // indirect
@@ -34,8 +37,11 @@ require (
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/gofrs/uuid v4.4.0+incompatible // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
 	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/lib/pq v1.10.9 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.10 // indirect
 	github.com/mfridman/interpolate v0.0.2 // indirect
--- a/loms/go.sum
+++ b/loms/go.sum
@@ -8,6 +8,8 @@ github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERo
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
 github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
 github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
+github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
 github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
 github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
 github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpSBQv6A=
@@ -42,6 +44,8 @@ github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA=
+github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/gojuno/minimock/v3 v3.4.5 h1:Jcb0tEYZvVlQNtAAYpg3jCOoSwss2c1/rNugYTzj304=
@@ -55,10 +59,14 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
+github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 h1:vr3AYkKovP8uR8AvSGGUK1IDqRa5lAAvEkZG1LKaCRc=
+github.com/jackc/fake v0.0.0-20150926172116-812a484cc733/go.mod h1:WrMFNQdiFJ80sQsxDoMokWK1W5TQtxBFNpzWTD84ibQ=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx v3.6.2+incompatible h1:2zP5OD7kiyR3xzRYMhOcXVvkDZsImVXfj+yIyTQf3/o=
+github.com/jackc/pgx v3.6.2+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
 github.com/jackc/pgx/v5 v5.7.5 h1:JHGfMnQY+IEtGM63d+NGMjoRpysB2JBwDr5fsngwmJs=
 github.com/jackc/pgx/v5 v5.7.5/go.mod h1:aruU7o91Tc2q2cFp5h4uP3f6ztExVpyVv88Xl/8Vl8M=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
@@ -71,6 +79,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
 github.com/magiconair/properties v1.8.10 h1:s31yESBquKXCV9a/ScB3ESkOjUYYv+X0rg8SYxI99mE=
@@ -128,6 +138,8 @@ github.com/sethvargo/go-retry v0.3.0 h1:EEt31A35QhrcRZtrYFDTBg91cqZVnFL2navjDrah
 github.com/sethvargo/go-retry v0.3.0/go.mod h1:mNX17F0C/HguQMyMyJxcnU471gOZGxCLyYaFyAZraas=
 github.com/shirou/gopsutil/v4 v4.25.1 h1:QSWkTc+fu9LTAWfkZwZ6j8MSUk4A2LV7rbH0ZqmLjXs=
 github.com/shirou/gopsutil/v4 v4.25.1/go.mod h1:RoUCUpndaJFtT+2zsZzzmhvbfGoDCJ7nFXKJf8GqJbI=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -167,6 +179,8 @@ go.opentelemetry.io/otel/trace v1.36.0 h1:ahxWNuqZjpdiFAyrIoQ4GIiAIhxAunQR6MUoKr
 go.opentelemetry.io/otel/trace v1.36.0/go.mod h1:gQ+OnDZzrybY4k4seLzPAWNwVBBVlF2szhehOBB/tGA=
 go.opentelemetry.io/proto/otlp v1.7.0 h1:jX1VolD6nHuFzOYso2E73H85i92Mv8JQYk0K9vz09os=
 go.opentelemetry.io/proto/otlp v1.7.0/go.mod h1:fSKjH6YJ7HDlwzltzyMj036AJ3ejJLCgCSHGj4efDDo=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
--- a/loms/internal/app/app.go
+++ b/loms/internal/app/app.go
@@ -30,6 +30,10 @@ import (
 type App struct {
 	config     *config.Config
 	controller *server.Server
+
+	grpcServer *grpc.Server
+	httpServer *http.Server
+	gwConn     *grpc.ClientConn
 }

 func NewApp(configPath string) (*App, error) {
@@ -72,26 +76,65 @@ func NewApp(configPath string) (*App, error) {
 	return app, nil
 }

-func (app *App) ListenAndServe() error {
+func (app *App) Shutdown(ctx context.Context) (err error) {
+	if app.httpServer != nil {
+		err = app.httpServer.Shutdown(ctx)
+
+		if err != nil {
+			log.Error().Err(err).Msgf("failed http gateway server shutdown")
+		}
+	}
+
+	done := make(chan struct{})
+	if app.grpcServer != nil {
+		go func() {
+			app.grpcServer.GracefulStop()
+
+			close(done)
+		}()
+	}
+
+	select {
+	case <-done:
+	case <-ctx.Done():
+		if app.grpcServer != nil {
+			app.grpcServer.Stop()
+		}
+	}
+
+	if app.gwConn != nil {
+		err2 := app.gwConn.Close()
+
+		if err2 != nil {
+			err = err2
+
+			log.Error().Err(err).Msgf("failed gateway connection close")
+		}
+	}
+
+	return err
+}
+
+func (app *App) ListenAndServe(ctx context.Context) error {
 	grpcAddr := fmt.Sprintf("%s:%s", app.config.Service.Host, app.config.Service.GRPCPort)
 	l, err := net.Listen("tcp", grpcAddr)
 	if err != nil {
 		return err
 	}

-	grpcServer := grpc.NewServer(
+	app.grpcServer = grpc.NewServer(
 		grpc.ChainUnaryInterceptor(
 			mw.Logging,
 			mw.Validate,
 		),
 	)
-	reflection.Register(grpcServer)
+	reflection.Register(app.grpcServer)

-	pb.RegisterLOMSServer(grpcServer, app.controller)
+	pb.RegisterLOMSServer(app.grpcServer, app.controller)

 	go func() {
-		if err = grpcServer.Serve(l); err != nil {
-			log.Fatal().Msgf("failed to serve: %v", err)
+		if err = app.grpcServer.Serve(l); err != nil {
+			log.Fatal().Err(err).Msg("failed to serve")
 		}
 	}()

@@ -106,21 +149,22 @@ func (app *App) ListenAndServe() error {
 	if err != nil {
 		return fmt.Errorf("grpc.NewClient: %w", err)
 	}
+	app.gwConn = conn

 	gwmux := runtime.NewServeMux()
-	if err = pb.RegisterLOMSHandler(context.Background(), gwmux, conn); err != nil {
+	if err = pb.RegisterLOMSHandler(ctx, gwmux, conn); err != nil {
 		return fmt.Errorf("pb.RegisterLOMSHandler: %w", err)
 	}

-	gwServer := &http.Server{
+	app.httpServer = &http.Server{
 		Addr:        fmt.Sprintf("%s:%s", app.config.Service.Host, app.config.Service.HTTPPort),
 		Handler:     gwmux,
 		ReadTimeout: 10 * time.Second,
 	}

-	log.Info().Msgf("Serving http loms at http://%s", gwServer.Addr)
+	log.Info().Msgf("Serving http loms at http://%s", app.httpServer.Addr)

-	return gwServer.ListenAndServe()
+	return app.httpServer.ListenAndServe()
 }

 func getPostgresPools(c *config.Config) (masterPool, replicaPool *pgxpool.Pool, err error) {
--- a/loms/internal/domain/repository/stocks/inmemory/stock-data.json
+++ b/loms/internal/domain/repository/stocks/inmemory/stock-data.json
@@ -1,37 +1,16 @@
 [
-  {
-    "sku": 139275865,
-    "total_count": 65534,
-    "reserved": 0
-  },
-  {
-    "sku": 2956315,
-    "total_count": 100,
-    "reserved": 30
-  },
-  {
-    "sku": 1076963,
-    "total_count": 100,
-    "reserved": 35
-  },
-  {
-    "sku": 135717466,
-    "total_count": 100,
-    "reserved": 20
-  },
-  {
-    "sku": 135937324,
-    "total_count": 100,
-    "reserved": 30
-  },
-  {
-    "sku": 1625903,
-    "total_count": 10000,
-    "reserved": 0
-  },
-  {
-    "sku": 1148162,
-    "total_count": 100,
-    "reserved": 0
-  }
+  {"sku": 139275865,"total_count": 65534,"reserved": 0},
+  {"sku": 2956315,"total_count": 100,"reserved": 30},
+  {"sku": 1076963,"total_count": 100,"reserved": 35},
+  {"sku": 135717466,"total_count": 100,"reserved": 20},
+  {"sku": 135937324,"total_count": 100,"reserved": 30},
+  {"sku": 1625903,"total_count": 10000,"reserved": 0},
+  {"sku": 1148162,"total_count": 100,"reserved": 0},
+  {"sku": 2958025,"total_count": 100,"reserved": 0},
+  {"sku": 3596599,"total_count": 100,"reserved": 0},
+  {"sku": 3618852,"total_count": 100,"reserved": 0},
+  {"sku": 4288068,"total_count": 100,"reserved": 0},
+  {"sku": 4465995,"total_count": 100,"reserved": 0},
+  {"sku": 30816475,"total_count": 100,"reserved": 0},
+  {"sku": 2618151,"total_count": 100,"reserved": 0}
 ]
--- a/loms/internal/domain/repository/stocks/sqlc/repository.go
+++ b/loms/internal/domain/repository/stocks/sqlc/repository.go
@@ -27,7 +27,7 @@ func NewStockRepository(write, read *pgxpool.Pool) service.StockRepository {
 	}
 }

-func (s *stockRepo) GetQuerier(ctx context.Context) *Queries {
+func (s *stockRepo) GetWriter(ctx context.Context) *Queries {
 	tx, ok := postgres.TxFromCtx(ctx)
 	if ok {
 		return New(tx)
@@ -36,8 +36,17 @@ func (s *stockRepo) GetQuerier(ctx context.Context) *Queries {
 	return New(s.write)
 }

+func (s *stockRepo) GetReader(ctx context.Context) *Queries {
+	tx, ok := postgres.TxFromCtx(ctx)
+	if ok {
+		return New(tx)
+	}
+
+	return New(s.read)
+}
+
 func (s *stockRepo) StockReserve(ctx context.Context, stock *entity.Stock) error {
-	querier := s.GetQuerier(ctx)
+	querier := s.GetWriter(ctx)

 	rows, err := querier.StockReserve(ctx, &StockReserveParams{
 		Sku:      int64(stock.Item.ID),
@@ -55,7 +64,7 @@ func (s *stockRepo) StockReserve(ctx context.Context, stock *entity.Stock) error
 }

 func (s *stockRepo) StockReserveRemove(ctx context.Context, stock *entity.Stock) error {
-	querier := s.GetQuerier(ctx)
+	querier := s.GetWriter(ctx)

 	rows, err := querier.StockReserveRemove(ctx, &StockReserveRemoveParams{
 		Sku:      int64(stock.Item.ID),
@@ -81,7 +90,7 @@ func (s *stockRepo) StockReserveRemove(ctx context.Context, stock *entity.Stock)
 }

 func (s *stockRepo) StockCancel(ctx context.Context, stock *entity.Stock) error {
-	querier := s.GetQuerier(ctx)
+	querier := s.GetWriter(ctx)

 	rows, err := querier.StockCancel(ctx, &StockCancelParams{
 		Sku:      int64(stock.Item.ID),
@@ -107,7 +116,7 @@ func (s *stockRepo) StockCancel(ctx context.Context, stock *entity.Stock) error
 }

 func (s *stockRepo) StockGetByID(ctx context.Context, sku entity.Sku) (*entity.Stock, error) {
-	querier := s.GetQuerier(ctx)
+	querier := s.GetReader(ctx)

 	stock, err := querier.StockGetByID(ctx, int64(sku))
 	switch {
--- a/loms/internal/domain/service/service_test.go
+++ b/loms/internal/domain/service/service_test.go
@@ -8,6 +8,7 @@ import (
 	"github.com/gojuno/minimock/v3"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/goleak"

 	"route256/loms/internal/domain/entity"
 	"route256/loms/internal/domain/model"
@@ -39,6 +40,10 @@ func (t *mockTxManager) ReadWithRepeatableRead(ctx context.Context, fn func(ctx
 	return fn(ctx)
 }

+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
+
 func TestLomsService_OrderCreate(t *testing.T) {
 	t.Parallel()

--- a/loms/tests/integration/loms_integration_test.go
+++ b/loms/tests/integration/loms_integration_test.go
@@ -12,11 +12,13 @@ import (
 	"time"

 	"github.com/jackc/pgx/v5/pgxpool"
+	_ "github.com/jackc/pgx/v5/stdlib"
 	"github.com/ozontech/allure-go/pkg/framework/provider"
 	"github.com/ozontech/allure-go/pkg/framework/suite"
 	"github.com/pressly/goose/v3"
 	"github.com/testcontainers/testcontainers-go"
 	"github.com/testcontainers/testcontainers-go/wait"
+	"go.uber.org/goleak"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"

@@ -47,10 +49,9 @@ func startPostgres(ctx context.Context, migrationsDir string) (*pgxpool.Pool, fu
 			"POSTGRESQL_USERNAME": "user",
 			"POSTGRESQL_PASSWORD": "postgres",
 			"POSTGRESQL_DATABASE": "loms_test",
-			"POSTGRESQL_PORT":     "5437",
 		},
-		ExposedPorts: []string{"5437/tcp"},
-		WaitingFor:   wait.ForListeningPort("5437/tcp").WithStartupTimeout(30 * time.Second),
+		ExposedPorts: []string{"5432/tcp"},
+		WaitingFor:   wait.ForListeningPort("5432/tcp").WithStartupTimeout(30 * time.Second),
 	}
 	container, err := testcontainers.GenericContainer(ctx,
 		testcontainers.GenericContainerRequest{ContainerRequest: req, Started: true})
@@ -58,7 +59,7 @@ func startPostgres(ctx context.Context, migrationsDir string) (*pgxpool.Pool, fu
 		return nil, nil, err
 	}

-	endpoint, err := container.Endpoint(ctx, "")
+	endpoint, err := container.PortEndpoint(ctx, "5432", "")
 	if err != nil {
 		container.Terminate(ctx)
 		return nil, nil, err
@@ -84,6 +85,7 @@ func startPostgres(ctx context.Context, migrationsDir string) (*pgxpool.Pool, fu
 		container.Terminate(ctx)
 		return nil, nil, err
 	}
+
 	if err := goose.Up(std, migrationsDir); err != nil {
 		container.Terminate(ctx)
 		return nil, nil, err
@@ -109,6 +111,8 @@ type LomsIntegrationSuite struct {
 }

 func TestLomsIntegrationSuite(t *testing.T) {
+	defer goleak.VerifyNone(t)
+
 	suite.RunSuite(t, new(LomsIntegrationSuite))
 }

@@ -116,6 +120,8 @@ func (s *LomsIntegrationSuite) BeforeAll(t provider.T) {
 	ctx := context.Background()
 	t.WithNewStep("init cart-service", func(sCtx provider.StepCtx) {
 		pool, cleanup, err := startPostgres(ctx, migrationsDir)
+		sCtx.Require().NoError(err, "failed postgres setup")
+
 		s.cleanup = cleanup

 		orderRepo := ordersRepository.NewOrderRepository(pool)