diff --git a/.golangci.yml b/.golangci.yml
index 4e7fa91..aee85c0 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -16,5 +16,4 @@ linters:
     - gofumpt
     - gosec
     - nlreturn
-    - gocritic
     - exhaustive
\ No newline at end of file
diff --git a/hw12_13_14_15_calendar/Makefile b/hw12_13_14_15_calendar/Makefile
index c3df0b2..ad498fa 100644
--- a/hw12_13_14_15_calendar/Makefile
+++ b/hw12_13_14_15_calendar/Makefile
@@ -9,8 +9,11 @@ start: build-all rabbit-start calendar-start scheduler-start sender-start
 
 stop: scheduler-stop sender-stop calendar-stop rabbit-stop
 
+integration:
+	go test -v -race ./cmd/calendar/...
+
 test:
-	go test -race ./internal/... ./pkg/... --tags calendar
+	go test -race ./internal/... ./pkg/...
 
 lint: install-lint-deps
 	golangci-lint run .cmd/... ./internal/...  ./pkg/...
@@ -48,5 +51,4 @@ sender-stop:
 
 
 
-
 .PHONY: build run test lint
\ No newline at end of file
diff --git a/hw12_13_14_15_calendar/cicd/calendar/Dockerfile b/hw12_13_14_15_calendar/cicd/calendar/Dockerfile
index c40664f..290f3f3 100644
--- a/hw12_13_14_15_calendar/cicd/calendar/Dockerfile
+++ b/hw12_13_14_15_calendar/cicd/calendar/Dockerfile
@@ -3,7 +3,7 @@ RUN mkdir -p /app
 WORKDIR /app
 COPY . .
 RUN go get -d ./cmd/calendar/.
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o calendar ./cmd/calendar/.
+RUN GOOS=linux GOARCH=amd64 go build -a -o calendar ./cmd/calendar/.
 
 FROM alpine:latest
 ENV APP_GRPC_ADDRESS=0.0.0.0
diff --git a/hw12_13_14_15_calendar/cicd/docker-compose.yml b/hw12_13_14_15_calendar/cicd/docker-compose.yml
index 414b897..7a67bcd 100644
--- a/hw12_13_14_15_calendar/cicd/docker-compose.yml
+++ b/hw12_13_14_15_calendar/cicd/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '2.0'
+version: '3'
 services:
   rabbitmq:
     image: rabbitmq:3-management-alpine
@@ -12,28 +12,28 @@ services:
     ports:
       - "5672:5672"
       - "15672:15672"
-    expose:
-      - 5672
-      - 15672
-  calendar:
-    build:
-      context: ..
-      dockerfile: ./cicd/calendar/Dockerfile
-    ports:
-      - 50051:50051
-      - 50053:50053
-      - 8888:8888
-    volumes:
-      - ../calendar.log:/calendar.log
-  scheduler:
-    build:
-      context: ..
-      dockerfile: ./cicd/scheduler/Dockerfile
-    volumes:
-      - ../calendar.log:/calendar.log
-  sender:
-    build:
-      context: ..
-      dockerfile: ./cicd/sender/Dockerfile
-    volumes:
-      - ../calendar.log:/calendar.log
\ No newline at end of file
+  #calendar:
+  #  build:
+  #    context: ..
+  #    dockerfile: ./cicd/calendar/Dockerfile
+  #  ports:
+  #    - "8888:8888"
+  #  volumes:
+  #    - ../calendar.log:/calendar.log
+  #scheduler:
+  #  build:
+  #    context: ..
+  #    dockerfile: ./cicd/scheduler/Dockerfile
+  #  volumes:
+  #    - ../calendar.log:/calendar.log
+  #  depends_on:
+  #    - rabbitmq
+  #    - calendar
+  #sender:
+  #  build:
+  #    context: ..
+  #    dockerfile: ./cicd/sender/Dockerfile
+  #  volumes:
+  #    - ../calendar.log:/calendar.log
+  #  depends_on:
+  #    - rabbitmq
\ No newline at end of file
diff --git a/hw12_13_14_15_calendar/cicd/scheduler/Dockerfile b/hw12_13_14_15_calendar/cicd/scheduler/Dockerfile
index a7a1c23..69fa4c4 100644
--- a/hw12_13_14_15_calendar/cicd/scheduler/Dockerfile
+++ b/hw12_13_14_15_calendar/cicd/scheduler/Dockerfile
@@ -3,7 +3,7 @@ RUN mkdir -p /app
 WORKDIR /app
 COPY . .
 RUN go get -d ./cmd/scheduler/.
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o scheduler ./cmd/scheduler/.
+RUN GOOS=linux GOARCH=amd64 go build -a -o scheduler ./cmd/scheduler/.
 
 FROM alpine:latest
 ENV APP_RABBITMQ_ADDRESS=rabbitmq
diff --git a/hw12_13_14_15_calendar/cicd/sender/Dockerfile b/hw12_13_14_15_calendar/cicd/sender/Dockerfile
index a4345ea..f97bc8a 100644
--- a/hw12_13_14_15_calendar/cicd/sender/Dockerfile
+++ b/hw12_13_14_15_calendar/cicd/sender/Dockerfile
@@ -3,7 +3,7 @@ RUN mkdir -p /app
 WORKDIR /app
 COPY . .
 RUN go get -d ./cmd/sender/.
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o sender ./cmd/sender/.
+RUN GOOS=linux GOARCH=amd64 go build -a -o sender ./cmd/sender/.
 
 FROM alpine:latest
 ENV APP_RABBITMQ_ADDRESS=rabbitmq
diff --git a/hw12_13_14_15_calendar/cmd/calendar/main.go b/hw12_13_14_15_calendar/cmd/calendar/main.go
index c7fedd3..778873b 100644
--- a/hw12_13_14_15_calendar/cmd/calendar/main.go
+++ b/hw12_13_14_15_calendar/cmd/calendar/main.go
@@ -32,7 +32,7 @@ func main() {
 	var conf config.Calendar
 	err := config.New(configFile, &conf)
 	if err != nil {
-		oslog.Fatal("не удалось открыть файл конфигурации:", err.Error())
+		oslog.Fatal("can't get config:", err.Error())
 	}
 	oslog.Printf("Переменная APP_GRPC_PORT: %#v", os.Getenv("APP_GRPC_PORT"))
 	oslog.Printf("Конфиг приложения: %#v", conf)
@@ -69,8 +69,8 @@ func main() {
 	defer grpcDiler.Close()
 
 	grpcGwRouter := runtime.NewServeMux()
-
-	if err = public.RegisterGrpcHandler(context.Background(), grpcGwRouter, grpcDiler); err != nil {
+	ctx, cancel := context.WithCancel(context.Background())
+	if err = public.RegisterGrpcHandler(ctx, grpcGwRouter, grpcDiler); err != nil {
 		log.Errorf("can't register handlers for grpc-gateway: " + err.Error())
 		os.Exit(1)
 	}
@@ -90,4 +90,6 @@ func main() {
 	<-signals
 	signal.Stop(signals)
 	serverGRPC.Stop()
+	serverAPI.Stop()
+	cancel()
 }
diff --git a/hw12_13_14_15_calendar/cmd/calendar/main_test.go b/hw12_13_14_15_calendar/cmd/calendar/main_test.go
new file mode 100644
index 0000000..50dfc20
--- /dev/null
+++ b/hw12_13_14_15_calendar/cmd/calendar/main_test.go
@@ -0,0 +1,95 @@
+package main
+
+import (
+	"context"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/golang/protobuf/ptypes/timestamp"
+	"github.com/stretchr/testify/require"
+	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/pkg/api/public"
+	"log"
+	"sync"
+	"testing"
+	"time"
+)
+
+var _ = func() bool {
+	testing.Init()
+	return true
+}()
+
+const testPortBase = 3000
+
+var testEvent01 = public.CreateReq{
+	Title:      "Test event 01",
+	Date:       time2pbtimestamp(time.Now().Add(30 * time.Second)),
+	Latency:    dur2pbduration(24 * time.Hour),
+	Note:       "Note of test event 01",
+	NotifyTime: dur2pbduration(5 * time.Minute),
+	UserID:     1111,
+}
+
+var testEvent02 = public.CreateReq{
+	Title:      "Test event 02",
+	Date:       time2pbtimestamp(time.Now().Add(60 * time.Second)),
+	Latency:    dur2pbduration(2 * 24 * time.Hour),
+	Note:       "Note of test event 02",
+	NotifyTime: dur2pbduration(5 * time.Minute),
+	UserID:     2222,
+}
+
+func TestSimple(t *testing.T) {
+	wg := sync.WaitGroup{}
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	go func(ctx context.Context) {
+		main()
+	}(ctx)
+	publicAPI, err := public.NewClient("localhost", "50051")
+	require.NoError(t, err)
+
+	wg.Add(2)
+	// Реализовать тесты логики приложения:
+	t.Run("test public GRPC.Create with GRPC.GetById", func(t *testing.T) {
+		defer wg.Done()
+		resp1, err := publicAPI.Create(ctx, &testEvent01)
+		require.NoError(t, err)
+		require.Greater(t, resp1.ID, int64(0))
+		resp2, err := publicAPI.GetByID(ctx, &public.GetByIDReq{ID: resp1.ID})
+		require.NoError(t, err)
+		require.Equal(t, 1, len(resp2.Events))
+		require.Equal(t, testEvent01.Title, resp2.Events[0].Title)
+		require.Equal(t, testEvent01.UserID, resp2.Events[0].UserID)
+		require.Equal(t, testEvent01.Date.Seconds, resp2.Events[0].Date.Seconds)
+		require.Equal(t, testEvent01.Note, resp2.Events[0].Note)
+	})
+
+	t.Run("test public GRPC.Update with GRPC.GetById", func(t *testing.T) {
+		defer wg.Done()
+		resp1, err := publicAPI.Create(ctx, &testEvent01)
+		require.NoError(t, err)
+		require.Greater(t, resp1.ID, int64(0))
+		_, err = publicAPI.Update(ctx, &public.UpdateReq{ID: resp1.ID, Event: &public.Event{ID: resp1.ID, Title: testEvent02.Title, Date: testEvent02.Date, Latency: testEvent02.Latency, Note: testEvent02.Note, UserID: testEvent02.UserID, NotifyTime: testEvent02.NotifyTime}})
+		require.NoError(t, err)
+		resp2, err := publicAPI.GetByID(ctx, &public.GetByIDReq{ID: resp1.ID})
+		require.NoError(t, err)
+		require.Equal(t, 1, len(resp2.Events))
+		require.Equal(t, testEvent02.Title, resp2.Events[0].Title)
+		require.Equal(t, testEvent02.UserID, resp2.Events[0].UserID)
+		require.Equal(t, testEvent02.Date.Seconds, resp2.Events[0].Date.Seconds)
+		require.Equal(t, testEvent02.Note, resp2.Events[0].Note)
+	})
+	wg.Wait()
+}
+
+func time2pbtimestamp(t time.Time) *timestamp.Timestamp {
+	r, err := ptypes.TimestampProto(t)
+	if err != nil {
+		log.Fatalf("cant convert Time to Timestamp: %s", err.Error())
+	}
+	return r
+}
+
+func dur2pbduration(t time.Duration) *duration.Duration {
+	return ptypes.DurationProto(t)
+}
diff --git a/hw12_13_14_15_calendar/cmd/scheduler/main.go b/hw12_13_14_15_calendar/cmd/scheduler/main.go
index bc9fae4..7093f26 100644
--- a/hw12_13_14_15_calendar/cmd/scheduler/main.go
+++ b/hw12_13_14_15_calendar/cmd/scheduler/main.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"context"
 	"flag"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/sheduler"
 	"log"
@@ -24,12 +23,11 @@ func main() {
 	var conf sheduler.Config
 	err := config.New(configFile, &conf)
 	if err != nil {
-		log.Fatal("не удалось открыть файл конфигурации:", err.Error())
+		log.Fatal("can't get config:", err.Error())
 	}
 	app := sheduler.New(conf)
 
-	ctx, cancel := context.WithCancel(context.Background())
-	if err = app.Start(ctx); err != nil {
+	if err = app.Start(); err != nil {
 		app.Logger.Errorf("failed to start scheduler: ", err.Error())
 		os.Exit(1)
 	}
@@ -38,5 +36,6 @@ func main() {
 	signal.Notify(signals, syscall.SIGINT)
 	<-signals
 	signal.Stop(signals)
-	app.Stop(cancel)
+	app.Stop()
+	log.Println("scheduler shutdown gracefully")
 }
diff --git a/hw12_13_14_15_calendar/cmd/sender/main.go b/hw12_13_14_15_calendar/cmd/sender/main.go
index ede4a82..62cafba 100644
--- a/hw12_13_14_15_calendar/cmd/sender/main.go
+++ b/hw12_13_14_15_calendar/cmd/sender/main.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"context"
 	"flag"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/sender"
 	"log"
@@ -16,7 +15,7 @@ import (
 var configFile string
 
 func init() {
-	flag.StringVar(&configFile, "config", "/etc/sender.conf", "Path to configuration file")
+	flag.StringVar(&configFile, "config", "", "Path to configuration file")
 	flag.Parse()
 }
 
@@ -24,12 +23,11 @@ func main() {
 	var conf sender.Config
 	err := config.New(configFile, &conf)
 	if err != nil {
-		log.Fatal("не удалось открыть файл конфигурации:", err.Error())
+		log.Fatal("can't get config:", err.Error())
 	}
 	app := sender.New(conf)
 
-	ctx, cancel := context.WithCancel(context.Background())
-	if err = app.Start(ctx); err != nil {
+	if err = app.Start(); err != nil {
 		app.Logger.Errorf("failed to start sender: ", err.Error())
 		os.Exit(1)
 	}
@@ -38,5 +36,6 @@ func main() {
 	signal.Notify(signals, syscall.SIGINT)
 	<-signals
 	signal.Stop(signals)
-	app.Stop(cancel)
+	app.Stop()
+	log.Println("sender shutdown gracefully")
 }
diff --git a/hw12_13_14_15_calendar/go.mod b/hw12_13_14_15_calendar/go.mod
index d78efb5..c5c0f37 100644
--- a/hw12_13_14_15_calendar/go.mod
+++ b/hw12_13_14_15_calendar/go.mod
@@ -9,12 +9,16 @@ require (
 	github.com/golang/protobuf v1.4.2
 	github.com/grpc-ecosystem/grpc-gateway v1.15.0
 	github.com/kr/text v0.2.0 // indirect
+	github.com/lib/pq v1.8.0 // indirect
+	github.com/mattn/go-sqlite3 v1.14.5 // indirect
 	github.com/mxschmitt/golang-env-struct v0.0.0-20181017075525-0c54aeca8397
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/pkg/errors v0.9.1
+	github.com/pressly/goose v2.6.0+incompatible // indirect
 	github.com/sirupsen/logrus v1.4.2 // indirect
 	github.com/streadway/amqp v1.0.0
 	github.com/stretchr/testify v1.6.1
+	github.com/ziutek/mymysql v1.5.4 // indirect
 	go.uber.org/zap v1.15.0 // indirect
 	golang.org/x/net v0.0.0-20200625001655-4c5254603344
 	golang.org/x/sys v0.0.0-20200909081042-eff7692f9009 // indirect
diff --git a/hw12_13_14_15_calendar/go.sum b/hw12_13_14_15_calendar/go.sum
index 8061704..f175e33 100644
--- a/hw12_13_14_15_calendar/go.sum
+++ b/hw12_13_14_15_calendar/go.sum
@@ -54,6 +54,10 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 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 v1.8.0 h1:9xohqzkUwzR4Ga4ivdTcawVS89YSDVxXMa3xJX3cGzg=
+github.com/lib/pq v1.8.0/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/mattn/go-sqlite3 v1.14.5 h1:1IdxlwTNazvbKJQSxoJ5/9ECbEeaTTyeU7sEAZ5KKTQ=
+github.com/mattn/go-sqlite3 v1.14.5/go.mod h1:WVKg1VTActs4Qso6iwGbiFih2UIHo0ENGwNd0Lj+XmI=
 github.com/mxschmitt/golang-env-struct v0.0.0-20181017075525-0c54aeca8397 h1:fbcg7+DIrrjxSsS78ARgJu/qZOO928w4mCj1KBEO7xM=
 github.com/mxschmitt/golang-env-struct v0.0.0-20181017075525-0c54aeca8397/go.mod h1:BvJngicNxsNmAUzt7zXpaoWKwuBiyxnD7DxzxfrrPyY=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
@@ -64,6 +68,8 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pressly/goose v2.6.0+incompatible h1:3f8zIQ8rfgP9tyI0Hmcs2YNAqUCL1c+diLe3iU8Qd/k=
+github.com/pressly/goose v2.6.0+incompatible/go.mod h1:m+QHWCqxR3k8D9l7qfzuC/djtlfzxr34mozWDYEu1z8=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0 h1:RR9dF3JtopPvtkroDZuVD7qquD0bnHlKSqaQhgwt8yk=
@@ -84,6 +90,8 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/ziutek/mymysql v1.5.4 h1:GB0qdRGsTwQSBVYuVShFBKaXSnSnYYC2d9knnE1LHFs=
+github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
diff --git a/hw12_13_14_15_calendar/internal/api/private/handlers.go b/hw12_13_14_15_calendar/internal/api/private/handlers.go
index 308c7b1..dbd78b4 100644
--- a/hw12_13_14_15_calendar/internal/api/private/handlers.go
+++ b/hw12_13_14_15_calendar/internal/api/private/handlers.go
@@ -2,18 +2,44 @@ package private
 
 import (
 	"context"
+	"net"
 
 	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/calendar"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/pkg/storage/event"
+	googrpc "google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
 
 type Service struct {
+	S   *googrpc.Server
 	App calendar.App
 }
 
+type Config struct {
+	Address string
+	Port    string
+}
+
+func New(app *calendar.App) Service {
+	return Service{S: googrpc.NewServer(), App: *app}
+}
+
+func (s *Service) Start(conf Config) error {
+	s.App.Logger.Infof("private GRPC server starting")
+	listnGrpc, err := net.Listen("tcp", net.JoinHostPort(conf.Address, conf.Port))
+	RegisterGrpcServer(s.S, s)
+	if err != nil {
+		return err
+	}
+	return s.S.Serve(listnGrpc)
+}
+
+func (s *Service) Stop() {
+	s.S.GracefulStop()
+}
+
 func (s Service) GetNotifications(ctx context.Context, e *empty.Empty) (*GetRsp, error) {
 	tmp, err := s.App.Storage.GetNotifications()
 	if err != nil {
diff --git a/hw12_13_14_15_calendar/internal/api/private/server.go b/hw12_13_14_15_calendar/internal/api/private/server.go
deleted file mode 100644
index 6a0a2ba..0000000
--- a/hw12_13_14_15_calendar/internal/api/private/server.go
+++ /dev/null
@@ -1,36 +0,0 @@
-package private
-
-import (
-	"net"
-
-	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/calendar"
-	googrpc "google.golang.org/grpc"
-)
-
-type Server struct {
-	s   *googrpc.Server
-	app calendar.App
-}
-
-type Config struct {
-	Address string
-	Port    string
-}
-
-func New(app *calendar.App) Server {
-	return Server{s: googrpc.NewServer(), app: *app}
-}
-
-func (s *Server) Start(conf Config) error {
-	s.app.Logger.Infof("private GRPC server starting")
-	listnGrpc, err := net.Listen("tcp", net.JoinHostPort(conf.Address, conf.Port))
-	RegisterGrpcServer(s.s, &Service{})
-	if err != nil {
-		return err
-	}
-	return s.s.Serve(listnGrpc)
-}
-
-func (s *Server) Stop() {
-	s.s.GracefulStop()
-}
diff --git a/hw12_13_14_15_calendar/internal/sender/app_sender.go b/hw12_13_14_15_calendar/internal/sender/app_sender.go
index 778d10b..741b529 100644
--- a/hw12_13_14_15_calendar/internal/sender/app_sender.go
+++ b/hw12_13_14_15_calendar/internal/sender/app_sender.go
@@ -15,6 +15,7 @@ type Sender struct {
 	Logger logger.Interface
 	Rabbit *rabbit.Rabbit
 	Queue  string
+	Stop   context.CancelFunc
 }
 
 type Config struct {
@@ -34,7 +35,9 @@ func New(conf Config) Sender {
 	return Sender{Logger: log, Rabbit: rb, Queue: conf.Rabbitmq.Queue}
 }
 
-func (s *Sender) Start(ctx context.Context) error {
+func (s *Sender) Start() error {
+	ctx, cancel := context.WithCancel(context.Background())
+	s.Stop = cancel
 	msg, err := s.Rabbit.Consume(ctx, s.Queue)
 	if err != nil {
 		return err
@@ -59,7 +62,3 @@ func (s *Sender) Start(ctx context.Context) error {
 	}()
 	return nil
 }
-
-func (s *Sender) Stop(cancel context.CancelFunc) {
-	cancel()
-}
diff --git a/hw12_13_14_15_calendar/internal/sheduler/app_scheduler.go b/hw12_13_14_15_calendar/internal/sheduler/app_scheduler.go
index 166f775..c08e0fc 100644
--- a/hw12_13_14_15_calendar/internal/sheduler/app_scheduler.go
+++ b/hw12_13_14_15_calendar/internal/sheduler/app_scheduler.go
@@ -14,6 +14,7 @@ type Scheduler struct {
 	CalendarAPI config.Server
 	Logger      logger.Interface
 	Rabbit      *rabbit.Rabbit
+	Stop        context.CancelFunc
 }
 
 type Config struct {
@@ -35,7 +36,9 @@ func New(conf Config) Scheduler {
 	return Scheduler{CalendarAPI: conf.CalendarAPI, Logger: log, Rabbit: rb}
 }
 
-func (s *Scheduler) Start(ctx context.Context) error {
+func (s *Scheduler) Start() error {
+	ctx, cancel := context.WithCancel(context.Background())
+	s.Stop = cancel
 	fetcher := riseOnTick(ctx, s.Logger, func() interface{} { return worker(ctx, s.CalendarAPI, s.Rabbit, s.Logger) }, 1*time.Minute)
 	go func() {
 		for {
@@ -52,7 +55,3 @@ func (s *Scheduler) Start(ctx context.Context) error {
 	}()
 	return nil
 }
-
-func (s *Scheduler) Stop(cancel context.CancelFunc) {
-	cancel()
-}
diff --git a/hw12_13_14_15_calendar/internal/sheduler/scheduler.go b/hw12_13_14_15_calendar/internal/sheduler/scheduler.go
index 8b309ee..75850a7 100644
--- a/hw12_13_14_15_calendar/internal/sheduler/scheduler.go
+++ b/hw12_13_14_15_calendar/internal/sheduler/scheduler.go
@@ -3,6 +3,7 @@ package sheduler
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"time"
 
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/api/private"
@@ -40,25 +41,25 @@ func riseOnTick(ctx context.Context, log logger.Interface, fn func() interface{}
 func worker(ctx context.Context, calendarAPI config.Server, rb *rabbit.Rabbit, log logger.Interface) error {
 	cli, err := private.NewClient(calendarAPI.Address, calendarAPI.Port)
 	if err != nil {
-		return err
+		return fmt.Errorf("can't get GRPC client: %w", err)
 	}
 	resp, err := cli.GetNotifications(ctx, nil)
 	if err != nil {
-		return err
+		return fmt.Errorf("can't get events from GRPC endpoint: %w", err)
 	}
 	for event := range resp.Events {
 		b, err := json.Marshal(event)
 		if err != nil {
-			return err
+			return fmt.Errorf("can't marshal events into JSON: %w", err)
 		}
 		err = rb.Publish(string(b))
 		if err != nil {
-			return err
+			return fmt.Errorf("can't publish serialized data to RabbitMQ: %w", err)
 		}
 	}
 	resp2, err := cli.PurgeOldEvents(ctx, &private.PurgeReq{OlderThenDays: 365})
 	if err != nil {
-		return err
+		return fmt.Errorf("can't purge old events: %w", err)
 	}
 	log.Infof("Scheduler successfully purges %s events from storage", resp2.Qty)
 	return nil
diff --git a/hw12_13_14_15_calendar/pkg/api/public/grpcclient.go b/hw12_13_14_15_calendar/pkg/api/public/grpcclient.go
new file mode 100644
index 0000000..ad7a4f5
--- /dev/null
+++ b/hw12_13_14_15_calendar/pkg/api/public/grpcclient.go
@@ -0,0 +1,16 @@
+package public
+
+import (
+	"net"
+
+	"google.golang.org/grpc"
+)
+
+func NewClient(addr, port string) (GrpcClient, error) {
+	conn, err := grpc.Dial(net.JoinHostPort(addr, port), grpc.WithInsecure())
+	if err != nil {
+		return nil, err
+	}
+	client := NewGrpcClient(conn)
+	return client, nil
+}
diff --git a/hw12_13_14_15_calendar/pkg/api/public/handlers.go b/hw12_13_14_15_calendar/pkg/api/public/handler.go
similarity index 82%
rename from hw12_13_14_15_calendar/pkg/api/public/handlers.go
rename to hw12_13_14_15_calendar/pkg/api/public/handler.go
index 44894e6..4766ccc 100644
--- a/hw12_13_14_15_calendar/pkg/api/public/handlers.go
+++ b/hw12_13_14_15_calendar/pkg/api/public/handler.go
@@ -2,18 +2,40 @@ package public
 
 import (
 	"context"
+	"net"
 
 	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/calendar"
+	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/pkg/config"
 	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/pkg/storage/event"
+	googrpc "google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
 
 type Service struct {
+	S   *googrpc.Server
 	App calendar.App
 }
 
+func New(app *calendar.App) Service {
+	return Service{S: googrpc.NewServer(), App: *app}
+}
+
+func (s *Service) Start(conf config.Calendar) error {
+	s.App.Logger.Infof("public GRPC server starting")
+	listnGrpc, err := net.Listen("tcp", net.JoinHostPort(conf.GRPC.Address, conf.GRPC.Port))
+	if err != nil {
+		return err
+	}
+	RegisterGrpcServer(s.S, s)
+	return s.S.Serve(listnGrpc)
+}
+
+func (s *Service) Stop() {
+	s.S.GracefulStop()
+}
+
 func (s Service) Create(ctx context.Context, e *CreateReq) (*CreateRsp, error) {
 	var res CreateRsp
 	ce, err := s.buildStorageEvent(e)
diff --git a/hw12_13_14_15_calendar/pkg/api/public/public.pb.go b/hw12_13_14_15_calendar/pkg/api/public/public.pb.go
index e9ecd62..eb1cc62 100644
--- a/hw12_13_14_15_calendar/pkg/api/public/public.pb.go
+++ b/hw12_13_14_15_calendar/pkg/api/public/public.pb.go
@@ -733,7 +733,9 @@ func _Grpc_Create_Handler(srv interface{}, ctx context.Context, dec func(interfa
 		return nil, err
 	}
 	if interceptor == nil {
-		return srv.(GrpcServer).Create(ctx, in)
+		sss := srv.(GrpcServer)
+		rrrrr, err := sss.Create(ctx, in)
+		return rrrrr, err
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
diff --git a/hw12_13_14_15_calendar/pkg/api/public/server.go b/hw12_13_14_15_calendar/pkg/api/public/server.go
deleted file mode 100644
index c0b8cc2..0000000
--- a/hw12_13_14_15_calendar/pkg/api/public/server.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package public
-
-import (
-	"net"
-
-	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/internal/calendar"
-	"github.com/tiburon-777/HW_OTUS/hw12_13_14_15_calendar/pkg/config"
-	googrpc "google.golang.org/grpc"
-)
-
-type Server struct {
-	s   *googrpc.Server
-	app calendar.App
-}
-
-func New(app *calendar.App) Server {
-	return Server{s: googrpc.NewServer(), app: *app}
-}
-
-func (s *Server) Start(conf config.Calendar) error {
-	s.app.Logger.Infof("public GRPC server starting")
-	listnGrpc, err := net.Listen("tcp", net.JoinHostPort(conf.GRPC.Address, conf.GRPC.Port))
-	RegisterGrpcServer(s.s, &Service{})
-	if err != nil {
-		return err
-	}
-	return s.s.Serve(listnGrpc)
-}
-
-func (s *Server) Stop() {
-	s.s.GracefulStop()
-}