chore(): small improvements

.env.template

@@ -2,4 +2,13 @@
 # Below all environment variables and default values
 
 GRPC_PORT=50051
+GRPC_ENABLE_REFLECTION=false
+HTTP_HANDLER_ENABLE=false
+HTTP_PORT=8080
 LOG_LEVEL=info
+POSTGRES_HOST=localhost
+POSTGRES_PORT=5432
+POSTGRES_USERNAME=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_DATABASE=postgres
+REDIS_URI=redis://localhost:6379

.golangci.yaml

@@ -26,7 +26,7 @@ formatters:
     ## you may want to enable
     #- gci # checks if code and import statements are formatted, with additional rules
     - gofmt # checks if the code is formatted according to 'gofmt' command
-    - gofumpt # enforces a stricter format than 'gofmt', while being backwards compatible
+    #- gofumpt # enforces a stricter format than 'gofmt', while being backwards compatible
     - swaggo # formats swaggo comments
 
   # All settings can be found here https://github.com/golangci/golangci-lint/blob/HEAD/.golangci.reference.yml
@@ -78,7 +78,7 @@ linters:
     - gomoddirectives # manages the use of 'replace', 'retract', and 'excludes' directives in go.mod
     - goprintffuncname # checks that printf-like functions are named with f at the end
     - gosec # inspects source code for security problems
-    # - govet # reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
+    - govet # reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
     - iface # checks the incorrect use of interfaces, helping developers avoid interface pollution
     - ineffassign # detects when assignments to existing variables are not used
     - intrange # finds places where for loops could make use of an integer range
@@ -213,12 +213,12 @@ linters:
           deny:
             - pkg: math/rand$
               desc: Use math/rand/v2 instead, see https://go.dev/blog/randv2
-        "non-main files":
+        # "non-main files":
-          files:
+        #   files:
-            - "!**/main.go"
+        #     - "!**/main.go"
-          deny:
+        #   deny:
-            - pkg: log$
+        #     - pkg: log$
-              desc: Use log/slog instead, see https://go.dev/blog/slog
+        #       desc: Use log/slog instead, see https://go.dev/blog/slog
 
     embeddedstructfieldcheck:
       # Checks that sync.Mutex and sync.RWMutex are not used as embedded fields.
@@ -335,7 +335,7 @@ linters:
         shadow:
           # Whether to be strict about shadowing; can be noisy.
           # Default: false
-          strict: true
+          strict: false
 
     inamedparam:
       # Skips check for interface methods with only a single parameter.

Containerfile

@@ -0,0 +1,56 @@
+ARG GOARCH=amd64
+ARG GOOS=linux
+ARG CGO_ENABLED=0
+ARG VERSION=1.0.0
+ARG BUILD_TIME=unknown
+
+# Stage 1: Build
+FROM docker.io/golang:1.24-alpine AS build
+
+ARG GOOS
+ARG GOARCH
+ARG CGO_ENABLED
+ARG VERSION
+ARG BUILD_TIME
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=${CGO_ENABLED} \
+    GOOS=${GOOS} \
+    GOARCH=${GOARCH} \
+    go build -trimpath \
+    -ldflags="-s -w -X 'main.Version=${VERSION}' -X 'main.BuildTime=${BUILD_TIME}'" \
+    -o /bin/app ./cmd/server
+
+# Stage 2: Runtime
+FROM docker.io/alpine:3.22 AS runtime
+
+ARG VERSION
+ARG BUILD_TIME
+
+RUN addgroup -S app && adduser -S -G app app
+
+WORKDIR /app
+
+COPY --from=build /bin/app /app/bin
+
+RUN chown app:app /app/bin && chmod +x /app/bin
+
+USER app
+
+EXPOSE 8080 50051
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
+    CMD wget -qO- --timeout=2 http://127.0.0.1:8080/health || exit 1
+
+LABEL org.opencontainers.image.version=${VERSION}
+LABEL org.opencontainers.image.created=${BUILD_TIME}
+
+ENTRYPOINT ["/app/bin"]
+
+CMD [""]

Containerfile.migrate

@@ -0,0 +1,51 @@
+ARG GOARCH=amd64
+ARG GOOS=linux
+ARG CGO_ENABLED=0
+ARG VERSION=1.0.0
+ARG BUILD_TIME=unknown
+
+# Stage 1: Build
+FROM docker.io/golang:1.24-alpine AS build
+
+ARG GOOS
+ARG GOARCH
+ARG CGO_ENABLED
+ARG VERSION
+ARG BUILD_TIME
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=${CGO_ENABLED} \
+    GOOS=${GOOS} \
+    GOARCH=${GOARCH} \
+    go build -trimpath \
+    -ldflags="-s -w -X 'main.Version=${VERSION}' -X 'main.BuildTime=${BUILD_TIME}'" \
+    -o /bin/app ./cmd/migrate
+
+# Stage 2: Runtime
+FROM docker.io/alpine:3.22 AS runtime
+
+ARG VERSION
+ARG BUILD_TIME
+
+RUN addgroup -S app && adduser -S -G app app
+
+WORKDIR /app
+
+COPY --from=build /bin/app /app/bin
+
+RUN chown app:app /app/bin && chmod +x /app/bin
+
+USER app
+
+LABEL org.opencontainers.image.version=${VERSION}
+LABEL org.opencontainers.image.created=${BUILD_TIME}
+
+ENTRYPOINT ["/app/bin"]
+
+CMD [""]

Makefile

@@ -1,9 +1,10 @@
 # Go parameters
 GOCMD=go
-GOBUILD=$(GOCMD) build
+GOBUILD=$(GOCMD) build -trimpath -ldflags="-s -w" 
 GOTEST=$(GOCMD) test
 GODOWNLOAD=$(GOCMD) mod download
 BINARY_NAME=orderservice
+MIGRATE_BINARY_NAME=orderservice-migrate
 BINARY_DIR=bin
 
 # Protobuf parameters
@@ -12,7 +13,7 @@ PROTO_DIR=api/proto
 PROTO_FILE=$(PROTO_DIR)/order.proto
 PROTO_OUT=.
 
-.PHONY: install i generate gen protoc test build run lint fmt format clean help
+.PHONY: install i generate gen generate-gw test build run migrate lint fmt format clean help
 
 install:
 	$(GODOWNLOAD)
@@ -26,7 +27,10 @@ generate:
 
 gen: generate
 
-protoc: generate
+generate-gw:
+	$(PROTOC) --version || (echo "protoc not found, install protoc"; exit 1)
+	$(PROTOC) --grpc-gateway_out=$(PROTO_OUT) --grpc-gateway_opt generate_unbound_methods=true \
+		$(PROTO_FILE)
 
 test:
 	$(GOTEST) ./...
@@ -35,9 +39,21 @@ build:
 	$(GOBUILD) -o ./$(BINARY_DIR)/$(BINARY_NAME) ./cmd/server
 	chmod +x ./$(BINARY_DIR)/$(BINARY_NAME)
 
+build-migrate:
+	$(GOBUILD) -o ./$(BINARY_DIR)/$(MIGRATE_BINARY_NAME) ./cmd/migrate
+	chmod +x ./$(BINARY_DIR)/$(MIGRATE_BINARY_NAME)
+
 run: build
 	./$(BINARY_DIR)/$(BINARY_NAME)
 
+migrate: build-migrate
+	@cmd=$(word 2,$(MAKECMDGOALS)); \
+	if [ -z "$$cmd" ]; then \
+		echo "Usage: make migrate <command>"; \
+		exit 1; \
+	fi; \
+	./$(BINARY_DIR)/$(MIGRATE_BINARY_NAME) -cmd $$cmd
+
 lint:
 	golangci-lint run -c .golangci.yaml ./...
 
@@ -65,3 +81,6 @@ help:
 	@echo "  clean     - Clean build artifacts"
 
 .DEFAULT_GOAL := help
+
+%:
+	@:

README.md

@@ -1 +1,61 @@
 # Order service
+
+Golang microservice to manage orders.
+
+## Prerequisites
+
+Ensure you have the following installed on your system:
+
+- Golang (>=1.24)
+- protoc (Protocol Buffers compiler)
+- make (latest version recommended)
+
+## Installation
+
+### 1. Clone the project
+
+### 2. Go to the project directory
+
+### 3. Install dependencies
+
+```bash
+make i
+```
+
+### 4. Customize environment
+
+```bash
+cp .env.example .env
+```
+
+And setup env vars according to your needs.
+
+## Configuration
+
+```bash
+GRPC_PORT=50051              # gRPC server port
+GRPC_ENABLE_REFLECTION=false # whether to enable gRPC reflection or not
+HTTP_HANDLER_ENABLE=false    # whether to enable HTTP gateway or not
+HTTP_PORT=8080               # HTTP gateway port
+LOG_LEVEL=info               # logging severity (debug, info, warn, error)
+```
+
+## Running
+
+### Build + run
+
+```bash
+make run
+```
+
+### Build
+
+```bash
+make build
+```
+
+### gRPC code generation
+
+```bash
+make generate
+```

cmd/migrate/main.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"database/sql"
+	"embed"
+	"errors"
+	"flag"
+	"log"
+
+	"orderservice/internal/config"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/postgres"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+//go:embed migrations/*.sql
+var migrationsFS embed.FS
+
+func main() {
+	var cmd string
+
+	flag.StringVar(&cmd, "cmd", "up", "migration command: up|down|force|version")
+	flag.Parse()
+
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("failed to load config: %v", err)
+	}
+
+	db, err := sql.Open("postgres", cfg.BuildPostgresDSN())
+	if err != nil {
+		log.Fatalf("open db: %v", err)
+	}
+	defer db.Close()
+
+	drv, err := postgres.WithInstance(db, &postgres.Config{})
+	if err != nil {
+		log.Printf("postgres driver: %v", err)
+		return
+	}
+
+	src, err := iofs.New(migrationsFS, "migrations")
+	if err != nil {
+		log.Printf("iofs source: %v", err)
+		return
+	}
+
+	m, err := migrate.NewWithInstance("iofs", src, "postgres", drv)
+	if err != nil {
+		log.Printf("migrate NewWithInstance: %v", err)
+		return
+	}
+
+	switch cmd {
+	case "up":
+		if err := m.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+			log.Printf("m.Up failed: %v", err)
+			return
+		}
+		log.Println("migrations applied (up)")
+	case "down":
+		if err := m.Steps(-1); err != nil {
+			log.Printf("m.Steps(-1) failed: %v", err)
+			return
+		}
+		log.Println("stepped down 1 migration")
+	case "version":
+		v, dirty, verr := m.Version()
+		if verr != nil {
+			log.Printf("version: %v", verr)
+			return
+		}
+		log.Printf("version: %d dirty: %v\n", v, dirty)
+	default:
+		log.Printf("unknown cmd: %s", cmd)
+	}
+}

cmd/migrate/migrations/000001_create_orders_table.down.sql

@@ -0,0 +1 @@
+drop table if exists orders;

cmd/migrate/migrations/000001_create_orders_table.up.sql

@@ -0,0 +1,5 @@
+create table if not exists orders (
+    id uuid primary key,
+    item varchar(500) not null,
+    quantity integer not null check (quantity > 0)
+);

cmd/server/main.go

@@ -2,6 +2,9 @@ package main
 
 import (
 	"log"
+	"os"
+	"os/signal"
+	"syscall"
 
 	"orderservice/internal/config"
 	"orderservice/internal/server"
@@ -10,7 +13,7 @@ import (
 func main() {
 	cfg, err := config.Load()
 	if err != nil {
-		log.Fatalf("Failed to load config: %v", err)
+		log.Fatalf("failed to load config: %v", err)
 	}
 
 	srv := server.New(cfg)
@@ -18,11 +21,15 @@ func main() {
 
 	go func() {
 		if err := srv.Start(); err != nil {
-			log.Fatalf("Failed to start server: %v", err)
+			log.Fatalf("failed to start server: %v", err)
 		}
 	}()
 
-	log.Printf("Server is running on port %d", cfg.GRPCPort)
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
 
-	select {}
+	log.Println("shutting down server...")
+	srv.Stop()
+	log.Println("server stopped")
 }

compose.yaml

@@ -0,0 +1,180 @@
+name: order
+
+services:
+  core:
+    build:
+      context: .
+      dockerfile: Containerfile
+    depends_on:
+      migrate:
+        restart: false
+        condition: service_completed_successfully
+        required: true
+      postgres:
+        restart: false
+        condition: service_healthy
+        required: true
+      redis:
+        restart: false
+        condition: service_healthy
+        required: true
+    env_file:
+      - path: ./infrastructure/core/.env.template
+        required: true
+      - path: ./infrastructure/core/.env
+    ports:
+      - name: http
+        target: 8080
+        published: 13440
+        host_ip: 127.0.0.1
+        protocol: tcp
+        app_protocol: http
+      - name: grpc
+        target: 50051
+        published: 13441
+        host_ip: 127.0.0.1
+        protocol: tcp
+        app_protocol: http
+    networks:
+      - default
+    restart: unless-stopped
+    shm_size: 4mb
+
+  migrate:
+    build:
+      context: .
+      dockerfile: Containerfile.migrate
+    depends_on:
+      postgres:
+        restart: false
+        condition: service_healthy
+        required: true
+    env_file:
+      - path: ./infrastructure/core/.env.template
+        required: true
+      - path: ./infrastructure/core/.env
+    networks:
+      - default
+    restart: no
+    shm_size: 4mb
+
+  postgres:
+    image: docker.io/postgres:17-alpine
+    configs:
+      - source: postgres_config
+        target: /etc/postgresql/postgresql.conf
+    env_file:
+      - path: ./infrastructure/postgres/.env.template
+        required: true
+      - path: ./infrastructure/postgres/.env
+        required: false
+    healthcheck:
+      test: [ "CMD", "pg_isready", "--dbname=postgres" ]
+      interval: 1m30s
+      timeout: 5s
+      start_period: 5s
+      start_interval: 2s
+      retries: 5
+    networks:
+      - default
+    oom_kill_disable: true
+    restart: unless-stopped
+    shm_size: 128mb
+    volumes:
+      - type: volume
+        source: postgres_data
+        target: /var/lib/postgresql/data
+
+  pgadmin:
+    image: docker.io/dpage/pgadmin4:9
+    configs:
+      - source: pgadmin_servers_config
+        target: /pgadmin4/servers.json
+    depends_on:
+      postgres:
+        restart: false
+        condition: service_healthy
+        required: true
+    env_file:
+      - path: ./infrastructure/pgadmin/.env.template
+        required: true
+      - path: ./infrastructure/pgadmin/.env
+        required: false
+    healthcheck:
+      test: ["CMD", "wget", "-O", "-", "http://localhost:80/misc/ping"]
+      interval: 1m30s
+      timeout: 5s
+      start_period: 5s
+      start_interval: 2s
+      retries: 5
+    ports:
+      - name: web
+        target: 80
+        published: 13442
+        host_ip: 127.0.0.1
+        protocol: tcp
+        app_protocol: http
+    networks:
+      - default
+    profiles:
+      - observability
+    restart: unless-stopped
+    shm_size: 4mb
+    volumes:
+      - type: volume
+        source: pgadmin_data
+        target: /var/lib/pgadmin
+        read_only: false
+
+  redis:
+    image: docker.io/redis:8-alpine
+    command: redis-server /usr/local/etc/redis/redis.conf
+    configs:
+      - source: redis_config
+        target: /usr/local/etc/redis/redis.conf
+    env_file:
+      - path: ./infrastructure/redis/.env.template
+        required: true
+      - path: ./infrastructure/redis/.env
+        required: false
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 1m30s
+      timeout: 5s
+      start_period: 5s
+      start_interval: 2s
+      retries: 5
+    networks:
+      - default
+    restart: unless-stopped
+    shm_size: 4mb
+    volumes:
+      - type: volume
+        source: redis_data
+        target: /data
+        read_only: false
+
+
+networks:
+  default:
+    driver: bridge
+    name: $COMPOSE_PROJECT_NAME
+    attachable: false
+    enable_ipv4: true
+    enable_ipv6: true
+    internal: false
+
+
+volumes:
+  postgres_data:
+  pgadmin_data:
+  redis_data:
+
+
+configs:
+  postgres_config:
+    file: ./infrastructure/postgres/postgresql.conf
+  pgadmin_servers_config:
+    file: ./infrastructure/pgadmin/servers.json
+  redis_config:
+    file: ./infrastructure/redis/redis.conf

go.mod

@@ -5,15 +5,42 @@ go 1.24.0
 toolchain go1.24.9
 
 require (
+	github.com/go-playground/validator/v10 v10.28.0
+	github.com/golang-migrate/migrate/v4 v4.19.0
 	github.com/google/uuid v1.6.0
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3
+	github.com/jmoiron/sqlx v1.4.0
 	github.com/joho/godotenv v1.5.1
+	github.com/lib/pq v1.10.9
+	github.com/redis/go-redis/v9 v9.16.0
 	google.golang.org/grpc v1.76.0
+	google.golang.org/protobuf v1.36.10
 )
 
 require (
-	golang.org/x/net v0.42.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	golang.org/x/sys v0.34.0 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
-	golang.org/x/text v0.27.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.10 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
-	google.golang.org/protobuf v1.36.10 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/rogpeppe/go-internal v1.14.1 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/crypto v0.42.0 // indirect
+	golang.org/x/net v0.43.0 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250929231259-57b25ae835d4 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250929231259-57b25ae835d4 // indirect
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 // indirect
+)
+
+tool (
+	github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway
+	github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc
+	google.golang.org/protobuf/cmd/protoc-gen-go
 )

go.sum

@@ -1,17 +1,107 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 h1:L/gRVlceqvL25UVaW/CKtUDjefjrs0SPonmDGUVOYP0=
+github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161/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/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
+github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
+github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
+github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
+github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmCQvQ4GpJHEqRLVk=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+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=
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 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.54.0 h1:TT4fX+nBOA/+LUkobKGW1ydGcn+G3vRw9+g5HwCphpk=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.54.0/go.mod h1:L7UH0GbB0p47T4Rri3uHjbpCFYrVrwc1I25QhNPiGK8=
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@@ -22,17 +112,30 @@ go.opentelemetry.io/otel/sdk/metric v1.37.0 h1:90lI228XrB9jCMuSdA0673aubgRobVZFh
 go.opentelemetry.io/otel/sdk/metric v1.37.0/go.mod h1:cNen4ZWfiD37l5NhS+Keb5RXVWZWpRE+9WyVCpbo5ps=
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-golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
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-golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
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infrastructure/.gitignore

@@ -0,0 +1,5 @@
+# Custom environment files
+.env
+
+# Password files
+password

infrastructure/core/.env.template

@@ -0,0 +1,10 @@
+GRPC_ENABLE_REFLECTION=true
+HTTP_HANDLER_ENABLE=true
+
+POSTGRES_HOST=postgres
+POSTGRES_PORT=5432
+POSTGRES_USERNAME=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_DATABASE=postgres
+
+REDIS_URI=redis://redis:6379

infrastructure/pgadmin/.env.template

@@ -0,0 +1,4 @@
+PGADMIN_DEFAULT_EMAIL=admin@mail.com
+PGADMIN_DEFAULT_PASSWORD=password
+PGADMIN_DISABLE_POSTFIX=True
+PGADMIN_REPLACE_SERVERS_ON_STARTUP=True

infrastructure/pgadmin/servers.json

@@ -0,0 +1,18 @@
+{
+  "Servers": {
+    "1": {
+      "Name": "default",
+      "Group": "Servers",
+      "Host": "postgres",
+      "Port": 5432,
+      "MaintenanceDB": "postgres",
+      "Username": "postgres",
+      "KerberosAuthentication": false,
+      "ConnectionParameters": {
+        "sslmode": "prefer",
+        "connect_timeout": 10
+      },
+      "Tags": []
+    }
+  }
+}

infrastructure/postgres/.env.template

@@ -0,0 +1,3 @@
+POSTGRES_DB=postgres
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres

infrastructure/postgres/postgresql.conf

@@ -0,0 +1,842 @@
+# -----------------------------
+# PostgreSQL configuration file
+# -----------------------------
+#
+# This file consists of lines of the form:
+#
+#   name = value
+#
+# (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
+# "#" anywhere on a line.  The complete list of parameter names and allowed
+# values can be found in the PostgreSQL documentation.
+#
+# The commented-out settings shown in this file represent the default values.
+# Re-commenting a setting is NOT sufficient to revert it to the default value;
+# you need to reload the server.
+#
+# This file is read on server startup and when the server receives a SIGHUP
+# signal.  If you edit the file on a running system, you have to SIGHUP the
+# server for the changes to take effect, run "pg_ctl reload", or execute
+# "SELECT pg_reload_conf()".  Some parameters, which are marked below,
+# require a server shutdown and restart to take effect.
+#
+# Any parameter can also be given as a command-line option to the server, e.g.,
+# "postgres -c log_connections=on".  Some parameters can be changed at run time
+# with the "SET" SQL command.
+#
+# Memory units:  B  = bytes            Time units:  us  = microseconds
+#                kB = kilobytes                     ms  = milliseconds
+#                MB = megabytes                     s   = seconds
+#                GB = gigabytes                     min = minutes
+#                TB = terabytes                     h   = hours
+#                                                   d   = days
+
+
+#------------------------------------------------------------------------------
+# FILE LOCATIONS
+#------------------------------------------------------------------------------
+
+# The default values of these variables are driven from the -D command-line
+# option or PGDATA environment variable, represented here as ConfigDir.
+
+#data_directory = 'ConfigDir'		# use data in another directory
+					# (change requires restart)
+#hba_file = 'ConfigDir/pg_hba.conf'	# host-based authentication file
+					# (change requires restart)
+#ident_file = 'ConfigDir/pg_ident.conf'	# ident configuration file
+					# (change requires restart)
+
+# If external_pid_file is not explicitly set, no extra PID file is written.
+#external_pid_file = ''			# write an extra PID file
+					# (change requires restart)
+
+
+#------------------------------------------------------------------------------
+# CONNECTIONS AND AUTHENTICATION
+#------------------------------------------------------------------------------
+
+# - Connection Settings -
+
+#listen_addresses = 'localhost'		# what IP address(es) to listen on;
+					# comma-separated list of addresses;
+					# defaults to 'localhost'; use '*' for all
+					# (change requires restart)
+#port = 5432				# (change requires restart)
+#max_connections = 100			# (change requires restart)
+#reserved_connections = 0		# (change requires restart)
+#superuser_reserved_connections = 3	# (change requires restart)
+#unix_socket_directories = '/tmp'	# comma-separated list of directories
+					# (change requires restart)
+#unix_socket_group = ''			# (change requires restart)
+#unix_socket_permissions = 0777		# begin with 0 to use octal notation
+					# (change requires restart)
+#bonjour = off				# advertise server via Bonjour
+					# (change requires restart)
+#bonjour_name = ''			# defaults to the computer name
+					# (change requires restart)
+
+# - TCP settings -
+# see "man tcp" for details
+
+#tcp_keepalives_idle = 0		# TCP_KEEPIDLE, in seconds;
+					# 0 selects the system default
+#tcp_keepalives_interval = 0		# TCP_KEEPINTVL, in seconds;
+					# 0 selects the system default
+#tcp_keepalives_count = 0		# TCP_KEEPCNT;
+					# 0 selects the system default
+#tcp_user_timeout = 0			# TCP_USER_TIMEOUT, in milliseconds;
+					# 0 selects the system default
+
+#client_connection_check_interval = 0	# time between checks for client
+					# disconnection while running queries;
+					# 0 for never
+
+# - Authentication -
+
+#authentication_timeout = 1min		# 1s-600s
+#password_encryption = scram-sha-256	# scram-sha-256 or md5
+#scram_iterations = 4096
+
+# GSSAPI using Kerberos
+#krb_server_keyfile = 'FILE:${sysconfdir}/krb5.keytab'
+#krb_caseins_users = off
+#gss_accept_delegation = off
+
+# - SSL -
+
+#ssl = off
+#ssl_ca_file = ''
+#ssl_cert_file = 'server.crt'
+#ssl_crl_file = ''
+#ssl_crl_dir = ''
+#ssl_key_file = 'server.key'
+#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL'	# allowed SSL ciphers
+#ssl_prefer_server_ciphers = on
+#ssl_ecdh_curve = 'prime256v1'
+#ssl_min_protocol_version = 'TLSv1.2'
+#ssl_max_protocol_version = ''
+#ssl_dh_params_file = ''
+#ssl_passphrase_command = ''
+#ssl_passphrase_command_supports_reload = off
+
+
+#------------------------------------------------------------------------------
+# RESOURCE USAGE (except WAL)
+#------------------------------------------------------------------------------
+
+# - Memory -
+
+#shared_buffers = 128MB			# min 128kB
+					# (change requires restart)
+#huge_pages = try			# on, off, or try
+					# (change requires restart)
+#huge_page_size = 0			# zero for system default
+					# (change requires restart)
+#temp_buffers = 8MB			# min 800kB
+#max_prepared_transactions = 0		# zero disables the feature
+					# (change requires restart)
+# Caution: it is not advisable to set max_prepared_transactions nonzero unless
+# you actively intend to use prepared transactions.
+#work_mem = 4MB				# min 64kB
+#hash_mem_multiplier = 2.0		# 1-1000.0 multiplier on hash table work_mem
+#maintenance_work_mem = 64MB		# min 64kB
+#autovacuum_work_mem = -1		# min 64kB, or -1 to use maintenance_work_mem
+#logical_decoding_work_mem = 64MB	# min 64kB
+#max_stack_depth = 2MB			# min 100kB
+#shared_memory_type = mmap		# the default is the first option
+					# supported by the operating system:
+					#   mmap
+					#   sysv
+					#   windows
+					# (change requires restart)
+#dynamic_shared_memory_type = posix	# the default is usually the first option
+					# supported by the operating system:
+					#   posix
+					#   sysv
+					#   windows
+					#   mmap
+					# (change requires restart)
+#min_dynamic_shared_memory = 0MB	# (change requires restart)
+#vacuum_buffer_usage_limit = 2MB	# size of vacuum and analyze buffer access strategy ring;
+					# 0 to disable vacuum buffer access strategy;
+					# range 128kB to 16GB
+
+# SLRU buffers (change requires restart)
+#commit_timestamp_buffers = 0		# memory for pg_commit_ts (0 = auto)
+#multixact_offset_buffers = 16		# memory for pg_multixact/offsets
+#multixact_member_buffers = 32		# memory for pg_multixact/members
+#notify_buffers = 16			# memory for pg_notify
+#serializable_buffers = 32		# memory for pg_serial
+#subtransaction_buffers = 0		# memory for pg_subtrans (0 = auto)
+#transaction_buffers = 0		# memory for pg_xact (0 = auto)
+
+# - Disk -
+
+#temp_file_limit = -1			# limits per-process temp file space
+					# in kilobytes, or -1 for no limit
+
+#max_notify_queue_pages = 1048576	# limits the number of SLRU pages allocated
+					# for NOTIFY / LISTEN queue
+
+# - Kernel Resources -
+
+#max_files_per_process = 1000		# min 64
+					# (change requires restart)
+
+# - Cost-Based Vacuum Delay -
+
+#vacuum_cost_delay = 0			# 0-100 milliseconds (0 disables)
+#vacuum_cost_page_hit = 1		# 0-10000 credits
+#vacuum_cost_page_miss = 2		# 0-10000 credits
+#vacuum_cost_page_dirty = 20		# 0-10000 credits
+#vacuum_cost_limit = 200		# 1-10000 credits
+
+# - Background Writer -
+
+#bgwriter_delay = 200ms			# 10-10000ms between rounds
+#bgwriter_lru_maxpages = 100		# max buffers written/round, 0 disables
+#bgwriter_lru_multiplier = 2.0		# 0-10.0 multiplier on buffers scanned/round
+#bgwriter_flush_after = 0		# measured in pages, 0 disables
+
+# - Asynchronous Behavior -
+
+#backend_flush_after = 0		# measured in pages, 0 disables
+#effective_io_concurrency = 1		# 1-1000; 0 disables prefetching
+#maintenance_io_concurrency = 10	# 1-1000; 0 disables prefetching
+#io_combine_limit = 128kB		# usually 1-32 blocks (depends on OS)
+#max_worker_processes = 8		# (change requires restart)
+#max_parallel_workers_per_gather = 2	# limited by max_parallel_workers
+#max_parallel_maintenance_workers = 2	# limited by max_parallel_workers
+#max_parallel_workers = 8		# number of max_worker_processes that
+					# can be used in parallel operations
+#parallel_leader_participation = on
+
+
+#------------------------------------------------------------------------------
+# WRITE-AHEAD LOG
+#------------------------------------------------------------------------------
+
+# - Settings -
+
+#wal_level = replica			# minimal, replica, or logical
+					# (change requires restart)
+#fsync = on				# flush data to disk for crash safety
+					# (turning this off can cause
+					# unrecoverable data corruption)
+#synchronous_commit = on		# synchronization level;
+					# off, local, remote_write, remote_apply, or on
+#wal_sync_method = fsync		# the default is the first option
+					# supported by the operating system:
+					#   open_datasync
+					#   fdatasync (default on Linux and FreeBSD)
+					#   fsync
+					#   fsync_writethrough
+					#   open_sync
+#full_page_writes = on			# recover from partial page writes
+#wal_log_hints = off			# also do full page writes of non-critical updates
+					# (change requires restart)
+#wal_compression = off			# enables compression of full-page writes;
+					# off, pglz, lz4, zstd, or on
+#wal_init_zero = on			# zero-fill new WAL files
+#wal_recycle = on			# recycle WAL files
+#wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
+					# (change requires restart)
+#wal_writer_delay = 200ms		# 1-10000 milliseconds
+#wal_writer_flush_after = 1MB		# measured in pages, 0 disables
+#wal_skip_threshold = 2MB
+
+#commit_delay = 0			# range 0-100000, in microseconds
+#commit_siblings = 5			# range 1-1000
+
+# - Checkpoints -
+
+#checkpoint_timeout = 5min		# range 30s-1d
+#checkpoint_completion_target = 0.9	# checkpoint target duration, 0.0 - 1.0
+#checkpoint_flush_after = 0		# measured in pages, 0 disables
+#checkpoint_warning = 30s		# 0 disables
+#max_wal_size = 1GB
+#min_wal_size = 80MB
+
+# - Prefetching during recovery -
+
+#recovery_prefetch = try	# prefetch pages referenced in the WAL?
+#wal_decode_buffer_size = 512kB	# lookahead window used for prefetching
+				# (change requires restart)
+
+# - Archiving -
+
+#archive_mode = off		# enables archiving; off, on, or always
+				# (change requires restart)
+#archive_library = ''		# library to use to archive a WAL file
+				# (empty string indicates archive_command should
+				# be used)
+#archive_command = ''		# command to use to archive a WAL file
+				# placeholders: %p = path of file to archive
+				#               %f = file name only
+				# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
+#archive_timeout = 0		# force a WAL file switch after this
+				# number of seconds; 0 disables
+
+# - Archive Recovery -
+
+# These are only used in recovery mode.
+
+#restore_command = ''		# command to use to restore an archived WAL file
+				# placeholders: %p = path of file to restore
+				#               %f = file name only
+				# e.g. 'cp /mnt/server/archivedir/%f %p'
+#archive_cleanup_command = ''	# command to execute at every restartpoint
+#recovery_end_command = ''	# command to execute at completion of recovery
+
+# - Recovery Target -
+
+# Set these only when performing a targeted recovery.
+
+#recovery_target = ''		# 'immediate' to end recovery as soon as a
+				# consistent state is reached
+				# (change requires restart)
+#recovery_target_name = ''	# the named restore point to which recovery will proceed
+				# (change requires restart)
+#recovery_target_time = ''	# the time stamp up to which recovery will proceed
+				# (change requires restart)
+#recovery_target_xid = ''	# the transaction ID up to which recovery will proceed
+				# (change requires restart)
+#recovery_target_lsn = ''	# the WAL LSN up to which recovery will proceed
+				# (change requires restart)
+#recovery_target_inclusive = on	# Specifies whether to stop:
+				# just after the specified recovery target (on)
+				# just before the recovery target (off)
+				# (change requires restart)
+#recovery_target_timeline = 'latest'	# 'current', 'latest', or timeline ID
+					# (change requires restart)
+#recovery_target_action = 'pause'	# 'pause', 'promote', 'shutdown'
+					# (change requires restart)
+
+# - WAL Summarization -
+
+#summarize_wal = off		# run WAL summarizer process?
+#wal_summary_keep_time = '10d'	# when to remove old summary files, 0 = never
+
+
+#------------------------------------------------------------------------------
+# REPLICATION
+#------------------------------------------------------------------------------
+
+# - Sending Servers -
+
+# Set these on the primary and on any standby that will send replication data.
+
+#max_wal_senders = 10		# max number of walsender processes
+				# (change requires restart)
+#max_replication_slots = 10	# max number of replication slots
+				# (change requires restart)
+#wal_keep_size = 0		# in megabytes; 0 disables
+#max_slot_wal_keep_size = -1	# in megabytes; -1 disables
+#wal_sender_timeout = 60s	# in milliseconds; 0 disables
+#track_commit_timestamp = off	# collect timestamp of transaction commit
+				# (change requires restart)
+
+# - Primary Server -
+
+# These settings are ignored on a standby server.
+
+#synchronous_standby_names = ''	# standby servers that provide sync rep
+				# method to choose sync standbys, number of sync standbys,
+				# and comma-separated list of application_name
+				# from standby(s); '*' = all
+#synchronized_standby_slots = ''	# streaming replication standby server slot
+				# names that logical walsender processes will wait for
+
+# - Standby Servers -
+
+# These settings are ignored on a primary server.
+
+#primary_conninfo = ''			# connection string to sending server
+#primary_slot_name = ''			# replication slot on sending server
+#hot_standby = on			# "off" disallows queries during recovery
+					# (change requires restart)
+#max_standby_archive_delay = 30s	# max delay before canceling queries
+					# when reading WAL from archive;
+					# -1 allows indefinite delay
+#max_standby_streaming_delay = 30s	# max delay before canceling queries
+					# when reading streaming WAL;
+					# -1 allows indefinite delay
+#wal_receiver_create_temp_slot = off	# create temp slot if primary_slot_name
+					# is not set
+#wal_receiver_status_interval = 10s	# send replies at least this often
+					# 0 disables
+#hot_standby_feedback = off		# send info from standby to prevent
+					# query conflicts
+#wal_receiver_timeout = 60s		# time that receiver waits for
+					# communication from primary
+					# in milliseconds; 0 disables
+#wal_retrieve_retry_interval = 5s	# time to wait before retrying to
+					# retrieve WAL after a failed attempt
+#recovery_min_apply_delay = 0		# minimum delay for applying changes during recovery
+#sync_replication_slots = off		# enables slot synchronization on the physical standby from the primary
+
+# - Subscribers -
+
+# These settings are ignored on a publisher.
+
+#max_logical_replication_workers = 4	# taken from max_worker_processes
+					# (change requires restart)
+#max_sync_workers_per_subscription = 2	# taken from max_logical_replication_workers
+#max_parallel_apply_workers_per_subscription = 2	# taken from max_logical_replication_workers
+
+
+#------------------------------------------------------------------------------
+# QUERY TUNING
+#------------------------------------------------------------------------------
+
+# - Planner Method Configuration -
+
+#enable_async_append = on
+#enable_bitmapscan = on
+#enable_gathermerge = on
+#enable_hashagg = on
+#enable_hashjoin = on
+#enable_incremental_sort = on
+#enable_indexscan = on
+#enable_indexonlyscan = on
+#enable_material = on
+#enable_memoize = on
+#enable_mergejoin = on
+#enable_nestloop = on
+#enable_parallel_append = on
+#enable_parallel_hash = on
+#enable_partition_pruning = on
+#enable_partitionwise_join = off
+#enable_partitionwise_aggregate = off
+#enable_presorted_aggregate = on
+#enable_seqscan = on
+#enable_sort = on
+#enable_tidscan = on
+#enable_group_by_reordering = on
+
+# - Planner Cost Constants -
+
+#seq_page_cost = 1.0			# measured on an arbitrary scale
+#random_page_cost = 4.0			# same scale as above
+#cpu_tuple_cost = 0.01			# same scale as above
+#cpu_index_tuple_cost = 0.005		# same scale as above
+#cpu_operator_cost = 0.0025		# same scale as above
+#parallel_setup_cost = 1000.0		# same scale as above
+#parallel_tuple_cost = 0.1		# same scale as above
+#min_parallel_table_scan_size = 8MB
+#min_parallel_index_scan_size = 512kB
+#effective_cache_size = 4GB
+
+#jit_above_cost = 100000		# perform JIT compilation if available
+					# and query more expensive than this;
+					# -1 disables
+#jit_inline_above_cost = 500000		# inline small functions if query is
+					# more expensive than this; -1 disables
+#jit_optimize_above_cost = 500000	# use expensive JIT optimizations if
+					# query is more expensive than this;
+					# -1 disables
+
+# - Genetic Query Optimizer -
+
+#geqo = on
+#geqo_threshold = 12
+#geqo_effort = 5			# range 1-10
+#geqo_pool_size = 0			# selects default based on effort
+#geqo_generations = 0			# selects default based on effort
+#geqo_selection_bias = 2.0		# range 1.5-2.0
+#geqo_seed = 0.0			# range 0.0-1.0
+
+# - Other Planner Options -
+
+#default_statistics_target = 100	# range 1-10000
+#constraint_exclusion = partition	# on, off, or partition
+#cursor_tuple_fraction = 0.1		# range 0.0-1.0
+#from_collapse_limit = 8
+#jit = on				# allow JIT compilation
+#join_collapse_limit = 8		# 1 disables collapsing of explicit
+					# JOIN clauses
+#plan_cache_mode = auto			# auto, force_generic_plan or
+					# force_custom_plan
+#recursive_worktable_factor = 10.0	# range 0.001-1000000
+
+
+#------------------------------------------------------------------------------
+# REPORTING AND LOGGING
+#------------------------------------------------------------------------------
+
+# - Where to Log -
+
+#log_destination = 'stderr'		# Valid values are combinations of
+					# stderr, csvlog, jsonlog, syslog, and
+					# eventlog, depending on platform.
+					# csvlog and jsonlog require
+					# logging_collector to be on.
+
+# This is used when logging to stderr:
+#logging_collector = off		# Enable capturing of stderr, jsonlog,
+					# and csvlog into log files. Required
+					# to be on for csvlogs and jsonlogs.
+					# (change requires restart)
+
+# These are only used if logging_collector is on:
+#log_directory = 'log'			# directory where log files are written,
+					# can be absolute or relative to PGDATA
+#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'	# log file name pattern,
+							# can include strftime() escapes
+#log_file_mode = 0600			# creation mode for log files,
+					# begin with 0 to use octal notation
+#log_rotation_age = 1d			# Automatic rotation of logfiles will
+					# happen after that time.  0 disables.
+#log_rotation_size = 10MB		# Automatic rotation of logfiles will
+					# happen after that much log output.
+					# 0 disables.
+#log_truncate_on_rotation = off		# If on, an existing log file with the
+					# same name as the new log file will be
+					# truncated rather than appended to.
+					# But such truncation only occurs on
+					# time-driven rotation, not on restarts
+					# or size-driven rotation.  Default is
+					# off, meaning append to existing files
+					# in all cases.
+
+# These are relevant when logging to syslog:
+#syslog_facility = 'LOCAL0'
+#syslog_ident = 'postgres'
+#syslog_sequence_numbers = on
+#syslog_split_messages = on
+
+# This is only relevant when logging to eventlog (Windows):
+# (change requires restart)
+#event_source = 'PostgreSQL'
+
+# - When to Log -
+
+#log_min_messages = warning		# values in order of decreasing detail:
+					#   debug5
+					#   debug4
+					#   debug3
+					#   debug2
+					#   debug1
+					#   info
+					#   notice
+					#   warning
+					#   error
+					#   log
+					#   fatal
+					#   panic
+
+#log_min_error_statement = error	# values in order of decreasing detail:
+					#   debug5
+					#   debug4
+					#   debug3
+					#   debug2
+					#   debug1
+					#   info
+					#   notice
+					#   warning
+					#   error
+					#   log
+					#   fatal
+					#   panic (effectively off)
+
+#log_min_duration_statement = -1	# -1 is disabled, 0 logs all statements
+					# and their durations, > 0 logs only
+					# statements running at least this number
+					# of milliseconds
+
+#log_min_duration_sample = -1		# -1 is disabled, 0 logs a sample of statements
+					# and their durations, > 0 logs only a sample of
+					# statements running at least this number
+					# of milliseconds;
+					# sample fraction is determined by log_statement_sample_rate
+
+#log_statement_sample_rate = 1.0	# fraction of logged statements exceeding
+					# log_min_duration_sample to be logged;
+					# 1.0 logs all such statements, 0.0 never logs
+
+
+#log_transaction_sample_rate = 0.0	# fraction of transactions whose statements
+					# are logged regardless of their duration; 1.0 logs all
+					# statements from all transactions, 0.0 never logs
+
+#log_startup_progress_interval = 10s	# Time between progress updates for
+					# long-running startup operations.
+					# 0 disables the feature, > 0 indicates
+					# the interval in milliseconds.
+
+# - What to Log -
+
+#debug_print_parse = off
+#debug_print_rewritten = off
+#debug_print_plan = off
+#debug_pretty_print = on
+#log_autovacuum_min_duration = 10min	# log autovacuum activity;
+					# -1 disables, 0 logs all actions and
+					# their durations, > 0 logs only
+					# actions running at least this number
+					# of milliseconds.
+#log_checkpoints = on
+#log_connections = off
+#log_disconnections = off
+#log_duration = off
+#log_error_verbosity = default		# terse, default, or verbose messages
+#log_hostname = off
+#log_line_prefix = '%m [%p] '		# special values:
+					#   %a = application name
+					#   %u = user name
+					#   %d = database name
+					#   %r = remote host and port
+					#   %h = remote host
+					#   %b = backend type
+					#   %p = process ID
+					#   %P = process ID of parallel group leader
+					#   %t = timestamp without milliseconds
+					#   %m = timestamp with milliseconds
+					#   %n = timestamp with milliseconds (as a Unix epoch)
+					#   %Q = query ID (0 if none or not computed)
+					#   %i = command tag
+					#   %e = SQL state
+					#   %c = session ID
+					#   %l = session line number
+					#   %s = session start timestamp
+					#   %v = virtual transaction ID
+					#   %x = transaction ID (0 if none)
+					#   %q = stop here in non-session
+					#        processes
+					#   %% = '%'
+					# e.g. '<%u%%%d> '
+#log_lock_waits = off			# log lock waits >= deadlock_timeout
+#log_recovery_conflict_waits = off	# log standby recovery conflict waits
+					# >= deadlock_timeout
+#log_parameter_max_length = -1		# when logging statements, limit logged
+					# bind-parameter values to N bytes;
+					# -1 means print in full, 0 disables
+#log_parameter_max_length_on_error = 0	# when logging an error, limit logged
+					# bind-parameter values to N bytes;
+					# -1 means print in full, 0 disables
+#log_statement = 'none'			# none, ddl, mod, all
+#log_replication_commands = off
+#log_temp_files = -1			# log temporary files equal or larger
+					# than the specified size in kilobytes;
+					# -1 disables, 0 logs all temp files
+#log_timezone = 'GMT'
+
+# - Process Title -
+
+#cluster_name = ''			# added to process titles if nonempty
+					# (change requires restart)
+#update_process_title = on
+
+
+#------------------------------------------------------------------------------
+# STATISTICS
+#------------------------------------------------------------------------------
+
+# - Cumulative Query and Index Statistics -
+
+#track_activities = on
+#track_activity_query_size = 1024	# (change requires restart)
+#track_counts = on
+#track_io_timing = off
+#track_wal_io_timing = off
+#track_functions = none			# none, pl, all
+#stats_fetch_consistency = cache	# cache, none, snapshot
+
+
+# - Monitoring -
+
+#compute_query_id = auto
+#log_statement_stats = off
+#log_parser_stats = off
+#log_planner_stats = off
+#log_executor_stats = off
+
+
+#------------------------------------------------------------------------------
+# AUTOVACUUM
+#------------------------------------------------------------------------------
+
+#autovacuum = on			# Enable autovacuum subprocess?  'on'
+					# requires track_counts to also be on.
+#autovacuum_max_workers = 3		# max number of autovacuum subprocesses
+					# (change requires restart)
+#autovacuum_naptime = 1min		# time between autovacuum runs
+#autovacuum_vacuum_threshold = 50	# min number of row updates before
+					# vacuum
+#autovacuum_vacuum_insert_threshold = 1000	# min number of row inserts
+						# before vacuum; -1 disables insert
+						# vacuums
+#autovacuum_analyze_threshold = 50	# min number of row updates before
+					# analyze
+#autovacuum_vacuum_scale_factor = 0.2	# fraction of table size before vacuum
+#autovacuum_vacuum_insert_scale_factor = 0.2	# fraction of inserts over table
+						# size before insert vacuum
+#autovacuum_analyze_scale_factor = 0.1	# fraction of table size before analyze
+#autovacuum_freeze_max_age = 200000000	# maximum XID age before forced vacuum
+					# (change requires restart)
+#autovacuum_multixact_freeze_max_age = 400000000	# maximum multixact age
+							# before forced vacuum
+							# (change requires restart)
+#autovacuum_vacuum_cost_delay = 2ms	# default vacuum cost delay for
+					# autovacuum, in milliseconds;
+					# -1 means use vacuum_cost_delay
+#autovacuum_vacuum_cost_limit = -1	# default vacuum cost limit for
+					# autovacuum, -1 means use
+					# vacuum_cost_limit
+
+
+#------------------------------------------------------------------------------
+# CLIENT CONNECTION DEFAULTS
+#------------------------------------------------------------------------------
+
+# - Statement Behavior -
+
+#client_min_messages = notice		# values in order of decreasing detail:
+					#   debug5
+					#   debug4
+					#   debug3
+					#   debug2
+					#   debug1
+					#   log
+					#   notice
+					#   warning
+					#   error
+#search_path = '"$user", public'	# schema names
+#row_security = on
+#default_table_access_method = 'heap'
+#default_tablespace = ''		# a tablespace name, '' uses the default
+#default_toast_compression = 'pglz'	# 'pglz' or 'lz4'
+#temp_tablespaces = ''			# a list of tablespace names, '' uses
+					# only default tablespace
+#check_function_bodies = on
+#default_transaction_isolation = 'read committed'
+#default_transaction_read_only = off
+#default_transaction_deferrable = off
+#session_replication_role = 'origin'
+#statement_timeout = 0				# in milliseconds, 0 is disabled
+#transaction_timeout = 0			# in milliseconds, 0 is disabled
+#lock_timeout = 0				# in milliseconds, 0 is disabled
+#idle_in_transaction_session_timeout = 0	# in milliseconds, 0 is disabled
+#idle_session_timeout = 0			# in milliseconds, 0 is disabled
+#vacuum_freeze_table_age = 150000000
+#vacuum_freeze_min_age = 50000000
+#vacuum_failsafe_age = 1600000000
+#vacuum_multixact_freeze_table_age = 150000000
+#vacuum_multixact_freeze_min_age = 5000000
+#vacuum_multixact_failsafe_age = 1600000000
+#bytea_output = 'hex'			# hex, escape
+#xmlbinary = 'base64'
+#xmloption = 'content'
+#gin_pending_list_limit = 4MB
+#createrole_self_grant = ''		# set and/or inherit
+#event_triggers = on
+
+# - Locale and Formatting -
+
+#datestyle = 'iso, mdy'
+#intervalstyle = 'postgres'
+#timezone = 'GMT'
+#timezone_abbreviations = 'Default'	# Select the set of available time zone
+					# abbreviations.  Currently, there are
+					#   Default
+					#   Australia (historical usage)
+					#   India
+					# You can create your own file in
+					# share/timezonesets/.
+#extra_float_digits = 1			# min -15, max 3; any value >0 actually
+					# selects precise output mode
+#client_encoding = sql_ascii		# actually, defaults to database
+					# encoding
+
+# These settings are initialized by initdb, but they can be changed.
+#lc_messages = ''			# locale for system error message
+					# strings
+#lc_monetary = 'C'			# locale for monetary formatting
+#lc_numeric = 'C'			# locale for number formatting
+#lc_time = 'C'				# locale for time formatting
+
+#icu_validation_level = warning		# report ICU locale validation
+					# errors at the given level
+
+# default configuration for text search
+#default_text_search_config = 'pg_catalog.simple'
+
+# - Shared Library Preloading -
+
+#local_preload_libraries = ''
+#session_preload_libraries = ''
+#shared_preload_libraries = ''		# (change requires restart)
+#jit_provider = 'llvmjit'		# JIT library to use
+
+# - Other Defaults -
+
+#dynamic_library_path = '$libdir'
+#gin_fuzzy_search_limit = 0
+
+
+#------------------------------------------------------------------------------
+# LOCK MANAGEMENT
+#------------------------------------------------------------------------------
+
+#deadlock_timeout = 1s
+#max_locks_per_transaction = 64		# min 10
+					# (change requires restart)
+#max_pred_locks_per_transaction = 64	# min 10
+					# (change requires restart)
+#max_pred_locks_per_relation = -2	# negative values mean
+					# (max_pred_locks_per_transaction
+					#  / -max_pred_locks_per_relation) - 1
+#max_pred_locks_per_page = 2		# min 0
+
+
+#------------------------------------------------------------------------------
+# VERSION AND PLATFORM COMPATIBILITY
+#------------------------------------------------------------------------------
+
+# - Previous PostgreSQL Versions -
+
+#array_nulls = on
+#backslash_quote = safe_encoding	# on, off, or safe_encoding
+#escape_string_warning = on
+#lo_compat_privileges = off
+#quote_all_identifiers = off
+#standard_conforming_strings = on
+#synchronize_seqscans = on
+
+# - Other Platforms and Clients -
+
+#transform_null_equals = off
+#allow_alter_system = on
+
+
+#------------------------------------------------------------------------------
+# ERROR HANDLING
+#------------------------------------------------------------------------------
+
+#exit_on_error = off			# terminate session on any error?
+#restart_after_crash = on		# reinitialize after backend crash?
+#data_sync_retry = off			# retry or panic on failure to fsync
+					# data?
+					# (change requires restart)
+#recovery_init_sync_method = fsync	# fsync, syncfs (Linux 5.8+)
+
+
+#------------------------------------------------------------------------------
+# CONFIG FILE INCLUDES
+#------------------------------------------------------------------------------
+
+# These options allow settings to be loaded from files other than the
+# default postgresql.conf.  Note that these are directives, not variable
+# assignments, so they can usefully be given more than once.
+
+#include_dir = '...'			# include files ending in '.conf' from
+					# a directory, e.g., 'conf.d'
+#include_if_exists = '...'		# include file only if it exists
+#include = '...'			# include file
+
+
+#------------------------------------------------------------------------------
+# CUSTOMIZED OPTIONS
+#------------------------------------------------------------------------------
+
+# Add settings for extensions here

infrastructure/redis/.env.template

@@ -0,0 +1 @@
+REDIS_PORT=6379

internal/config/config.go

@@ -1,7 +1,9 @@
 package config
 
 import (
+	"fmt"
 	"log"
+	"net"
 	"os"
 	"strconv"
 
@@ -9,32 +11,68 @@ import (
 )
 
 type Config struct {
-	GRPCPort int
+	GRPCPort             int
-	LogLevel string
+	GRPCEnableReflection bool
+	EnableHTTPHandler    bool
+	HTTPPort             int
+	LogLevel             string
+	DBHost               string
+	DBPort               int
+	DBUser               string
+	DBPassword           string
+	DBName               string
+	RedisURI             string
 }
 
 func Load() (*Config, error) {
-	if err := godotenv.Load(); err != nil {
+	_ = godotenv.Load()
-		log.Printf("Warning: .env file not found: %v", err)
+
+	return &Config{
+		GRPCPort:             mustGetInt("GRPC_PORT", 50051), //nolint:mnd // false-positive
+		GRPCEnableReflection: mustGetBool("GRPC_ENABLE_REFLECTION", false),
+		EnableHTTPHandler:    mustGetBool("HTTP_HANDLER_ENABLE", false),
+		HTTPPort:             mustGetInt("HTTP_PORT", 8080), //nolint:mnd // false-positive
+		LogLevel:             getEnv("LOG_LEVEL", "info"),
+		DBHost:               getEnv("POSTGRES_HOST", "localhost"),
+		DBPort:               mustGetInt("POSTGRES_PORT", 5432), //nolint:mnd // false-positive
+		DBUser:               getEnv("POSTGRES_USERNAME", "postgres"),
+		DBPassword:           getEnv("POSTGRES_PASSWORD", "postgres"),
+		DBName:               getEnv("POSTGRES_DATABASE", "postgres"),
+		RedisURI:             getEnv("REDIS_URI", "redis://localhost:6379"),
+	}, nil
+}
+
+func getEnv(key, def string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
 	}
+	return def
+}
 
-	config := &Config{}
+func mustGetInt(key string, def int) int {
-
+	val := getEnv(key, strconv.Itoa(def))
-	portStr := getEnv("GRPC_PORT", "50051")
+	n, err := strconv.Atoi(val)
-	port, err := strconv.Atoi(portStr)
 	if err != nil {
-		return nil, err
+		log.Fatalf("invalid int for %s: %v", key, err)
 	}
-	config.GRPCPort = port
+	return n
-
-	config.LogLevel = getEnv("LOG_LEVEL", "info")
-
-	return config, nil
 }
 
-func getEnv(key, defaultValue string) string {
+func mustGetBool(key string, def bool) bool {
-	if value := os.Getenv(key); value != "" {
+	val := getEnv(key, strconv.FormatBool(def))
-		return value
+	b, err := strconv.ParseBool(val)
+	if err != nil {
+		log.Fatalf("invalid bool for %s: %v", key, err)
 	}
-	return defaultValue
+	return b
+}
+
+func (c Config) BuildPostgresConnStr() string {
+	return fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
+		c.DBHost, c.DBPort, c.DBUser, c.DBPassword, c.DBName)
+}
+
+func (c Config) BuildPostgresDSN() string {
+	return fmt.Sprintf("postgresql://%s:%s@%s/%s?sslmode=disable",
+		c.DBUser, c.DBPassword, net.JoinHostPort(c.DBHost, strconv.Itoa(c.DBPort)), c.DBName)
 }

internal/domain/id.go

@@ -0,0 +1,9 @@
+package domain
+
+import (
+	"errors"
+)
+
+var (
+	ErrInvalidID = errors.New("invalid uuid")
+)

internal/domain/order.go

@@ -0,0 +1,42 @@
+package domain
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/google/uuid"
+)
+
+var (
+	ErrOrderAlreadyExist = errors.New("order already exist")
+	ErrOrderNotFound     = errors.New("order not found")
+	ErrInvalidOrderData  = errors.New("invalid order data")
+)
+
+type Order struct {
+	ID       uuid.UUID `db:"id"       json:"id"       validate:"required"`
+	Item     string    `db:"item"     json:"item"     validate:"required"`
+	Quantity int32     `db:"quantity" json:"quantity" validate:"required,gt=0"`
+}
+
+func NewOrder(id uuid.UUID, item string, quantity int32) (*Order, error) {
+	order := &Order{
+		ID:       id,
+		Item:     item,
+		Quantity: quantity,
+	}
+
+	err := order.Validate()
+	if err != nil {
+		return nil, err
+	}
+
+	return order, nil
+}
+
+func (o *Order) Validate() error {
+	validate := validator.New()
+
+	return fmt.Errorf("%w: %w", ErrInvalidOrderData, validate.Struct(o))
+}

internal/handler/grpc/errors.go

@@ -0,0 +1,26 @@
+package handler
+
+import (
+	"errors"
+	"log"
+
+	"orderservice/internal/domain"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func mapError(err error) error {
+	if errors.Is(err, domain.ErrOrderNotFound) {
+		return status.Error(codes.NotFound, err.Error())
+	}
+	if errors.Is(err, domain.ErrOrderAlreadyExist) {
+		return status.Error(codes.AlreadyExists, err.Error())
+	}
+	if errors.Is(err, domain.ErrInvalidOrderData) || errors.Is(err, domain.ErrInvalidID) {
+		return status.Error(codes.InvalidArgument, err.Error())
+	}
+
+	log.Printf("internal server error: %v", err)
+	return status.Error(codes.Internal, "internal server error")
+}

internal/handler/grpc/order.go

@@ -0,0 +1,108 @@
+package handler
+
+import (
+	"context"
+
+	"orderservice/internal/domain"
+	"orderservice/internal/service"
+	pb "orderservice/pkg/api/order"
+
+	"github.com/google/uuid"
+)
+
+type OrderHandler struct {
+	pb.UnimplementedOrderServiceServer
+
+	service *service.OrderService
+}
+
+func NewOrderHandler(service *service.OrderService) *OrderHandler {
+	return &OrderHandler{
+		service: service,
+	}
+}
+
+func mapDomainStructToHandler(order *domain.Order) *pb.Order {
+	return &pb.Order{
+		Id:       order.ID.String(),
+		Item:     order.Item,
+		Quantity: order.Quantity,
+	}
+}
+
+func (h *OrderHandler) CreateOrder(
+	ctx context.Context,
+	req *pb.CreateOrderRequest,
+) (*pb.CreateOrderResponse, error) {
+	order, err := h.service.Create(ctx, req.GetItem(), req.GetQuantity())
+	if err != nil {
+		return nil, mapError(err)
+	}
+
+	return &pb.CreateOrderResponse{Id: order.ID.String()}, nil
+}
+
+func (h *OrderHandler) GetOrder(ctx context.Context, req *pb.GetOrderRequest) (*pb.GetOrderResponse, error) {
+	parsedID, err := uuid.Parse(req.GetId())
+	if err != nil {
+		return nil, domain.ErrInvalidID
+	}
+
+	order, err := h.service.Get(ctx, parsedID)
+	if err != nil {
+		return nil, mapError(err)
+	}
+
+	return &pb.GetOrderResponse{Order: mapDomainStructToHandler(order)}, nil
+}
+
+func (h *OrderHandler) UpdateOrder(
+	ctx context.Context,
+	req *pb.UpdateOrderRequest,
+) (*pb.UpdateOrderResponse, error) {
+	parsedID, err := uuid.Parse(req.GetId())
+	if err != nil {
+		return nil, mapError(domain.ErrInvalidID)
+	}
+
+	order, err := h.service.Update(ctx, parsedID, req.GetItem(), req.GetQuantity())
+	if err != nil {
+		return nil, mapError(err)
+	}
+
+	return &pb.UpdateOrderResponse{Order: mapDomainStructToHandler(order)}, nil
+}
+
+func (h *OrderHandler) DeleteOrder(
+	ctx context.Context,
+	req *pb.DeleteOrderRequest,
+) (*pb.DeleteOrderResponse, error) {
+	parsedID, err := uuid.Parse(req.GetId())
+	if err != nil {
+		return nil, domain.ErrInvalidID
+	}
+
+	err = h.service.Delete(ctx, parsedID)
+	if err != nil {
+		return nil, mapError(err)
+	}
+
+	return &pb.DeleteOrderResponse{Success: true}, nil
+}
+
+func (h *OrderHandler) ListOrders(
+	ctx context.Context,
+	_ *pb.ListOrdersRequest,
+) (*pb.ListOrdersResponse, error) {
+	domainOrders, err := h.service.List(ctx)
+	if err != nil {
+		return nil, mapError(err)
+	}
+
+	orders := make([]*pb.Order, 0, len(domainOrders))
+	for _, o := range domainOrders {
+		orders = append(orders, mapDomainStructToHandler(o))
+	}
+
+	return &pb.ListOrdersResponse{Orders: orders}, nil
+}

internal/handler/http/health.go

@@ -0,0 +1,63 @@
+package http
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"time"
+
+	"github.com/jmoiron/sqlx"
+	"github.com/redis/go-redis/v9"
+)
+
+type HealthHandler struct {
+	DB    *sqlx.DB
+	Redis *redis.Client
+}
+
+func NewHealthHandler(db *sqlx.DB, redisDB *redis.Client) *HealthHandler {
+	return &HealthHandler{
+		DB:    db,
+		Redis: redisDB,
+	}
+}
+
+type HealthResponse struct {
+	Status  string            `json:"status"`
+	Details map[string]string `json:"details"`
+}
+
+func (h *HealthHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	ctx, cancel := context.WithTimeout(r.Context(), 2*time.Second)
+	defer cancel()
+
+	details := map[string]string{}
+
+	if err := h.DB.PingContext(ctx); err != nil {
+		details["postgres"] = "unhealthy: " + err.Error()
+	} else {
+		details["postgres"] = "ok"
+	}
+
+	if err := h.Redis.Ping(ctx).Err(); err != nil {
+		details["redis"] = "unhealthy: " + err.Error()
+	} else {
+		details["redis"] = "ok"
+	}
+
+	status := "ok"
+	for _, v := range details {
+		if v != "ok" {
+			status = "unhealthy"
+			break
+		}
+	}
+
+	resp := HealthResponse{Status: status, Details: details}
+
+	w.Header().Set("Content-Type", "application/json")
+	if status != "ok" {
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}
+	_ = json.NewEncoder(w).Encode(resp)
+}

internal/interceptor/logger.go

@@ -25,7 +25,6 @@ func (i *LoggerInterceptor) Unary() grpc.UnaryServerInterceptor {
 		start := time.Now()
 
 		log.Printf("gRPC method %s called", info.FullMethod)
-		log.Printf("Request: %+v", req)
 
 		resp, err := handler(ctx, req)
 
@@ -33,14 +32,13 @@ func (i *LoggerInterceptor) Unary() grpc.UnaryServerInterceptor {
 
 		if err != nil {
 			if st, ok := status.FromError(err); ok {
-				log.Printf("Error: %s, Code: %s, Duration: %v",
+				log.Printf("error: %s, code: %s, duration: %v",
 					st.Message(), st.Code(), duration)
 			} else {
-				log.Printf("Error: %v, Duration: %v", err, duration)
+				log.Printf("error: %v, duration: %v", err, duration)
 			}
 		} else {
-			log.Printf("Response: %+v", resp)
+			log.Printf("method %s completed in %v", info.FullMethod, duration)
-			log.Printf("Method %s completed in %v", info.FullMethod, duration)
 		}
 
 		return resp, err
@@ -63,10 +61,10 @@ func (i *LoggerInterceptor) Stream() grpc.StreamServerInterceptor {
 		duration := time.Since(start)
 
 		if err != nil {
-			log.Printf("Stream method %s failed: %v, Duration: %v",
+			log.Printf("stream method %s failed: %v, duration: %v",
 				info.FullMethod, err, duration)
 		} else {
-			log.Printf("Stream method %s completed in %v",
+			log.Printf("stream method %s completed in %v",
 				info.FullMethod, duration)
 		}
 

internal/repository/inmemory/order.go

@@ -0,0 +1,102 @@
+package inmemory
+
+import (
+	"context"
+	"sync"
+
+	"orderservice/internal/domain"
+
+	"github.com/google/uuid"
+)
+
+type OrderRepository struct {
+	mu     sync.RWMutex
+	orders map[string]*domain.Order
+}
+
+func NewOrderRepository() *OrderRepository {
+	return &OrderRepository{
+		orders: make(map[string]*domain.Order),
+	}
+}
+
+func (r *OrderRepository) Create(ctx context.Context, order *domain.Order) error {
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	if _, ok := r.orders[order.ID.String()]; ok {
+		return domain.ErrOrderAlreadyExist
+	}
+	r.orders[order.ID.String()] = order
+
+	return nil
+}
+
+func (r *OrderRepository) Get(ctx context.Context, id uuid.UUID) (*domain.Order, error) {
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	order, ok := r.orders[id.String()]
+	if !ok {
+		return nil, domain.ErrOrderNotFound
+	}
+
+	return order, nil
+}
+
+func (r *OrderRepository) Update(ctx context.Context, order *domain.Order) error {
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	if _, ok := r.orders[order.ID.String()]; !ok {
+		return domain.ErrOrderNotFound
+	}
+	r.orders[order.ID.String()] = order
+
+	return nil
+}
+
+func (r *OrderRepository) Delete(ctx context.Context, id uuid.UUID) error {
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
+	if _, ok := r.orders[id.String()]; !ok {
+		return domain.ErrOrderNotFound
+	}
+
+	delete(r.orders, id.String())
+
+	return nil
+}
+
+func (r *OrderRepository) List(ctx context.Context) ([]*domain.Order, error) {
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	orders := make([]*domain.Order, 0, len(r.orders))
+	for _, order := range r.orders {
+		orders = append(orders, order)
+	}
+
+	return orders, nil
+}

internal/repository/order.go

@@ -0,0 +1,17 @@
+package repository
+
+import (
+	"context"
+
+	"orderservice/internal/domain"
+
+	"github.com/google/uuid"
+)
+
+type OrderRepository interface {
+	Create(ctx context.Context, order *domain.Order) error
+	Get(ctx context.Context, id uuid.UUID) (*domain.Order, error)
+	Update(ctx context.Context, order *domain.Order) error
+	Delete(ctx context.Context, id uuid.UUID) error
+	List(ctx context.Context) ([]*domain.Order, error)
+}

internal/repository/postgres/order.go

@@ -0,0 +1,243 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+	"time"
+
+	"orderservice/internal/domain"
+
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	orderCachePrefix = "order:"
+	cacheTTL         = 5 * time.Minute
+)
+
+type OrderRepository struct {
+	db          *sqlx.DB
+	redisClient *redis.Client
+	cacheEnable bool
+}
+
+type Config struct {
+	CacheEnable bool
+}
+
+func NewOrderRepository(db *sqlx.DB, redisClient *redis.Client, config *Config) *OrderRepository {
+	if config == nil {
+		config = &Config{
+			CacheEnable: true,
+		}
+	}
+
+	return &OrderRepository{
+		db:          db,
+		redisClient: redisClient,
+		cacheEnable: config.CacheEnable,
+	}
+}
+
+func (r *OrderRepository) cacheKey(id string) string {
+	return orderCachePrefix + id
+}
+
+func (r *OrderRepository) Create(ctx context.Context, order *domain.Order) error {
+	tx, err := r.db.BeginTxx(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("begin transaction: %w", err)
+	}
+	defer tx.Rollback()
+
+	query := `
+		insert into orders (id, item, quantity)
+		values (:id, :item, :quantity)
+	`
+
+	if _, err := tx.NamedExecContext(ctx, query, order); err != nil {
+		return fmt.Errorf("create order: %w", err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("commit transaction: %w", err)
+	}
+
+	if r.cacheEnable {
+		if err := r.setCacheWithRetry(ctx, order); err != nil {
+			log.Printf("warn: cache set error for order %s: %v", order.ID, err)
+		}
+	}
+
+	return nil
+}
+
+func (r *OrderRepository) Get(ctx context.Context, id uuid.UUID) (*domain.Order, error) {
+	if r.cacheEnable {
+		if order, err := r.getFromCache(ctx, id.String()); err == nil {
+			return order, nil
+		} else if !errors.Is(err, redis.Nil) {
+			log.Printf("warn: cache get error for order %s: %v", id, err)
+		}
+	}
+
+	const query = `
+		select id, item, quantity
+		from orders
+		where id = $1
+	`
+
+	var order domain.Order
+	if err := r.db.GetContext(ctx, &order, query, id); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, domain.ErrOrderNotFound
+		}
+		return nil, fmt.Errorf("get order by id: %w", err)
+	}
+
+	if r.cacheEnable {
+		if err := r.setCacheWithRetry(ctx, &order); err != nil {
+			log.Printf("warn: cache set error for order %s: %v", id, err)
+		}
+	}
+
+	return &order, nil
+}
+
+func (r *OrderRepository) Update(ctx context.Context, order *domain.Order) error {
+	tx, err := r.db.BeginTxx(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("begin transaction: %w", err)
+	}
+	defer tx.Rollback()
+
+	query := `
+		update orders 
+		set item = :item, quantity = :quantity
+		where id = :id
+	`
+
+	result, err := tx.NamedExecContext(ctx, query, order)
+	if err != nil {
+		return fmt.Errorf("update order: %w", err)
+	}
+
+	rowsAffected, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("get rows affected: %w", err)
+	}
+
+	if rowsAffected == 0 {
+		return domain.ErrOrderNotFound
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("commit transaction: %w", err)
+	}
+
+	if r.cacheEnable {
+		if err := r.setCacheWithRetry(ctx, order); err != nil {
+			log.Printf("warn: cache set error for order %s: %v", order.ID, err)
+		}
+	}
+
+	return nil
+}
+
+func (r *OrderRepository) Delete(ctx context.Context, id uuid.UUID) error {
+	tx, err := r.db.BeginTxx(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("begin transaction: %w", err)
+	}
+	defer tx.Rollback()
+
+	const query = `
+		delete from orders
+		where id = $1
+	`
+
+	result, err := tx.ExecContext(ctx, query, id)
+	if err != nil {
+		return fmt.Errorf("delete order: %w", err)
+	}
+
+	rowsAffected, err := result.RowsAffected()
+	if err != nil {
+		return fmt.Errorf("get rows affected: %w", err)
+	}
+
+	if rowsAffected == 0 {
+		return domain.ErrOrderNotFound
+	}
+
+	if err := tx.Commit(); err != nil {
+		return fmt.Errorf("commit transaction: %w", err)
+	}
+
+	r.invalidateCache(ctx, id.String())
+	return nil
+}
+
+func (r *OrderRepository) List(ctx context.Context) ([]*domain.Order, error) {
+	const query = `
+		select id, item, quantity
+		from orders
+		order by id
+	`
+
+	var orders []*domain.Order
+	if err := r.db.SelectContext(ctx, &orders, query); err != nil {
+		return nil, fmt.Errorf("list orders: %w", err)
+	}
+
+	return orders, nil
+}
+
+func (r *OrderRepository) getFromCache(ctx context.Context, id string) (*domain.Order, error) {
+	data, err := r.redisClient.Get(ctx, r.cacheKey(id)).Bytes()
+	if err != nil {
+		return nil, err
+	}
+
+	var order domain.Order
+	if err := json.Unmarshal(data, &order); err != nil {
+		r.redisClient.Del(ctx, r.cacheKey(id))
+		return nil, err
+	}
+
+	return &order, nil
+}
+
+func (r *OrderRepository) setCacheWithRetry(ctx context.Context, order *domain.Order) error {
+	data, err := json.Marshal(order)
+	if err != nil {
+		return err
+	}
+
+	key := r.cacheKey(order.ID.String())
+
+	err = r.redisClient.Set(ctx, key, data, cacheTTL).Err()
+
+	return err
+}
+
+func (r *OrderRepository) invalidateCache(_ context.Context, id string) {
+	if !r.cacheEnable {
+		return
+	}
+
+	go func() {
+		ctx, cancel := context.WithTimeout(context.Background(), r.redisClient.Options().ReadTimeout)
+		defer cancel()
+
+		if err := r.redisClient.Del(ctx, r.cacheKey(id)).Err(); err != nil {
+			log.Printf("warn: cache invalidation failed for order %s: %v", id, err)
+		}
+	}()
+}

internal/server/server.go

@@ -1,22 +1,49 @@
 package server
 
 import (
+	"context"
 	"fmt"
 	"log"
 	"net"
+	"net/http"
+	"time"
 
 	"orderservice/internal/config"
 	"orderservice/internal/interceptor"
+
+	grpcHandlers "orderservice/internal/handler/grpc"
+	httpHandlers "orderservice/internal/handler/http"
+	orderPostgresRepo "orderservice/internal/repository/postgres"
 	"orderservice/internal/service"
 
 	pb "orderservice/pkg/api/order"
 
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/jmoiron/sqlx"
+	_ "github.com/lib/pq" // postgres driver
+	"github.com/redis/go-redis/v9"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/reflection"
+)
+
+const (
+	httpReadTimeout      = 10 * time.Second
+	httpWriteTimeout     = 10 * time.Second
+	httpIdleTimeout      = 60 * time.Second
+	redisRetryCount      = 2
+	redisMinRetryBackoff = 50 * time.Millisecond
+	redisMaxRetryBackoff = 200 * time.Millisecond
+	redisDialTimeout     = 1 * time.Second
+	redisDialerRetries   = 3
+	redisTimeout         = 2 * time.Second
 )
 
 type Server struct {
 	grpcServer *grpc.Server
 	config     *config.Config
+	db         *sqlx.DB
+	redisDB    *redis.Client
 }
 
 func New(cfg *config.Config) *Server {
@@ -33,9 +60,90 @@ func New(cfg *config.Config) *Server {
 	}
 }
 
+func runHTTPHandler(s *Server, grpcServerEndpoint *string) error {
+	ctx := context.Background()
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	gwmux := runtime.NewServeMux()
+	opts := []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials())}
+	err := pb.RegisterOrderServiceHandlerFromEndpoint(ctx, gwmux, *grpcServerEndpoint, opts)
+	if err != nil {
+		return err
+	}
+
+	mux := http.NewServeMux()
+	mux.Handle("/healthz", httpHandlers.NewHealthHandler(s.db, s.redisDB))
+	mux.Handle("/", gwmux)
+
+	srv := &http.Server{
+		Addr:         fmt.Sprintf(":%d", s.config.HTTPPort),
+		Handler:      mux,
+		ReadTimeout:  httpReadTimeout,
+		WriteTimeout: httpWriteTimeout,
+		IdleTimeout:  httpIdleTimeout,
+	}
+
+	return srv.ListenAndServe()
+}
+
+func getDatabase(cfg config.Config) (*sqlx.DB, error) {
+	db, err := sqlx.Connect("postgres", cfg.BuildPostgresConnStr())
+	if err != nil {
+		return nil, fmt.Errorf("connect to database: %w", err)
+	}
+
+	return db, nil
+}
+
+func getRedis(cfg config.Config) (*redis.Client, error) {
+	conn, err := redis.ParseURL(cfg.RedisURI)
+	client := redis.NewClient(&redis.Options{
+		Addr:               conn.Addr,
+		MaxRetries:         redisRetryCount,
+		MinRetryBackoff:    redisMinRetryBackoff,
+		MaxRetryBackoff:    redisMaxRetryBackoff,
+		DialTimeout:        redisDialTimeout,
+		DialerRetries:      redisDialerRetries,
+		DialerRetryTimeout: redisDialTimeout,
+		ReadTimeout:        redisTimeout,
+		WriteTimeout:       redisTimeout,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("parse Redis URI: %w", err)
+	}
+
+	_, err = client.Ping(context.Background()).Result()
+	if err != nil {
+		return nil, fmt.Errorf("connect to Redis server: %w", err)
+	}
+
+	return client, nil
+}
+
 func (s *Server) RegisterServices() {
-	orderService := service.NewOrderServiceServer()
+	db, err := getDatabase(*s.config)
-	pb.RegisterOrderServiceServer(s.grpcServer, orderService)
+	if err != nil {
+		log.Print(err)
+	}
+	s.db = db
+
+	redisDB, err := getRedis(*s.config)
+	if err != nil {
+		log.Print(err)
+	}
+	s.redisDB = redisDB
+
+	orderRepo := orderPostgresRepo.NewOrderRepository(db, redisDB, &orderPostgresRepo.Config{CacheEnable: true})
+	orderService := service.NewOrderService(orderRepo)
+	orderHandler := grpcHandlers.NewOrderHandler(orderService)
+
+	pb.RegisterOrderServiceServer(s.grpcServer, orderHandler)
+
+	if s.config.GRPCEnableReflection {
+		reflection.Register(s.grpcServer)
+		log.Println("gRPC server will start with reflection")
+	}
 }
 
 func (s *Server) Start() error {
@@ -45,7 +153,16 @@ func (s *Server) Start() error {
 		return fmt.Errorf("failed to listen: %w", err)
 	}
 
-	log.Printf("Starting gRPC server on port %d", s.config.GRPCPort)
+	if s.config.EnableHTTPHandler {
+		go func() {
+			log.Printf("starting HTTP gateway on port %d", s.config.HTTPPort)
+			if err := runHTTPHandler(s, &addr); err != nil {
+				log.Printf("HTTP gateway failed: %v", err)
+			}
+		}()
+	}
+
+	log.Printf("starting gRPC server on port %d", s.config.GRPCPort)
 
 	if err := s.grpcServer.Serve(lis); err != nil {
 		return fmt.Errorf("failed to serve: %w", err)

internal/service/order.go

@@ -0,0 +1,56 @@
+package service
+
+import (
+	"context"
+
+	"orderservice/internal/domain"
+	"orderservice/internal/repository"
+
+	"github.com/google/uuid"
+)
+
+type OrderService struct {
+	repo repository.OrderRepository
+}
+
+func NewOrderService(repo repository.OrderRepository) *OrderService {
+	return &OrderService{
+		repo: repo,
+	}
+}
+
+func (s *OrderService) Create(ctx context.Context, item string, quantity int32) (*domain.Order, error) {
+	order, err := domain.NewOrder(uuid.New(), item, quantity)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := s.repo.Create(ctx, order); err != nil {
+		return nil, err
+	}
+	return order, nil
+}
+
+func (s *OrderService) Get(ctx context.Context, id uuid.UUID) (*domain.Order, error) {
+	return s.repo.Get(ctx, id)
+}
+
+func (s *OrderService) Update(ctx context.Context, id uuid.UUID, item string, quantity int32) (*domain.Order, error) {
+	order, err := domain.NewOrder(id, item, quantity)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := s.repo.Update(ctx, order); err != nil {
+		return nil, err
+	}
+	return order, nil
+}
+
+func (s *OrderService) Delete(ctx context.Context, id uuid.UUID) error {
+	return s.repo.Delete(ctx, id)
+}
+
+func (s *OrderService) List(ctx context.Context) ([]*domain.Order, error) {
+	return s.repo.List(ctx)
+}

internal/service/order_service.go

@@ -1,110 +0,0 @@
-package service
-
-import (
-	"context"
-	"errors"
-	"sync"
-
-	pb "orderservice/pkg/api/order"
-
-	"github.com/google/uuid"
-)
-
-var ErrOrderNotFound = errors.New("order not found")
-
-func generateOrderID() string {
-	return uuid.NewString()
-}
-
-type OrderServiceServer struct {
-	pb.UnimplementedOrderServiceServer
-
-	mu     sync.RWMutex
-	orders map[string]*pb.Order
-}
-
-func NewOrderServiceServer() *OrderServiceServer {
-	return &OrderServiceServer{
-		orders: make(map[string]*pb.Order),
-	}
-}
-
-func (s *OrderServiceServer) CreateOrder(
-	_ context.Context,
-	req *pb.CreateOrderRequest,
-) (*pb.CreateOrderResponse, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	id := generateOrderID()
-	order := &pb.Order{
-		Id:       id,
-		Item:     req.GetItem(),
-		Quantity: req.GetQuantity(),
-	}
-	s.orders[id] = order
-
-	return &pb.CreateOrderResponse{Id: id}, nil
-}
-
-func (s *OrderServiceServer) GetOrder(_ context.Context, req *pb.GetOrderRequest) (*pb.GetOrderResponse, error) {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-
-	order, ok := s.orders[req.GetId()]
-	if !ok {
-		return nil, ErrOrderNotFound
-	}
-
-	return &pb.GetOrderResponse{Order: order}, nil
-}
-
-func (s *OrderServiceServer) UpdateOrder(
-	_ context.Context,
-	req *pb.UpdateOrderRequest,
-) (*pb.UpdateOrderResponse, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	order, ok := s.orders[req.GetId()]
-	if !ok {
-		return nil, ErrOrderNotFound
-	}
-
-	order.Item = req.GetItem()
-	order.Quantity = req.GetQuantity()
-
-	return &pb.UpdateOrderResponse{Order: order}, nil
-}
-
-func (s *OrderServiceServer) DeleteOrder(
-	_ context.Context,
-	req *pb.DeleteOrderRequest,
-) (*pb.DeleteOrderResponse, error) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	_, ok := s.orders[req.GetId()]
-	if !ok {
-		return nil, ErrOrderNotFound
-	}
-
-	delete(s.orders, req.GetId())
-
-	return &pb.DeleteOrderResponse{Success: true}, nil
-}
-
-func (s *OrderServiceServer) ListOrders(
-	_ context.Context,
-	_ *pb.ListOrdersRequest,
-) (*pb.ListOrdersResponse, error) {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-
-	orders := make([]*pb.Order, 0, len(s.orders))
-	for _, o := range s.orders {
-		orders = append(orders, o)
-	}
-
-	return &pb.ListOrdersResponse{Orders: orders}, nil
-}

pkg/api/order/order.pb.gw.go

@@ -0,0 +1,421 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: api/proto/order.proto
+
+/*
+Package order is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package order
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/proto"
+)
+
+// Suppress "imported and not used" errors
+var (
+	_ codes.Code
+	_ io.Reader
+	_ status.Status
+	_ = errors.New
+	_ = runtime.String
+	_ = utilities.NewDoubleArray
+	_ = metadata.Join
+)
+
+func request_OrderService_CreateOrder_0(ctx context.Context, marshaler runtime.Marshaler, client OrderServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq CreateOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.CreateOrder(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_OrderService_CreateOrder_0(ctx context.Context, marshaler runtime.Marshaler, server OrderServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq CreateOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.CreateOrder(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_OrderService_GetOrder_0(ctx context.Context, marshaler runtime.Marshaler, client OrderServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq GetOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.GetOrder(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_OrderService_GetOrder_0(ctx context.Context, marshaler runtime.Marshaler, server OrderServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq GetOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.GetOrder(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_OrderService_UpdateOrder_0(ctx context.Context, marshaler runtime.Marshaler, client OrderServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq UpdateOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.UpdateOrder(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_OrderService_UpdateOrder_0(ctx context.Context, marshaler runtime.Marshaler, server OrderServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq UpdateOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.UpdateOrder(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_OrderService_DeleteOrder_0(ctx context.Context, marshaler runtime.Marshaler, client OrderServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq DeleteOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.DeleteOrder(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_OrderService_DeleteOrder_0(ctx context.Context, marshaler runtime.Marshaler, server OrderServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq DeleteOrderRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.DeleteOrder(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+func request_OrderService_ListOrders_0(ctx context.Context, marshaler runtime.Marshaler, client OrderServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq ListOrdersRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if req.Body != nil {
+		_, _ = io.Copy(io.Discard, req.Body)
+	}
+	msg, err := client.ListOrders(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+}
+
+func local_request_OrderService_ListOrders_0(ctx context.Context, marshaler runtime.Marshaler, server OrderServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var (
+		protoReq ListOrdersRequest
+		metadata runtime.ServerMetadata
+	)
+	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && !errors.Is(err, io.EOF) {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	msg, err := server.ListOrders(ctx, &protoReq)
+	return msg, metadata, err
+}
+
+// RegisterOrderServiceHandlerServer registers the http handlers for service OrderService to "mux".
+// UnaryRPC     :call OrderServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterOrderServiceHandlerFromEndpoint instead.
+// GRPC interceptors will not work for this type of registration. To use interceptors, you must use the "runtime.WithMiddlewares" option in the "runtime.NewServeMux" call.
+func RegisterOrderServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server OrderServiceServer) error {
+	mux.Handle(http.MethodPost, pattern_OrderService_CreateOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/order.OrderService/CreateOrder", runtime.WithHTTPPathPattern("/order.OrderService/CreateOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_OrderService_CreateOrder_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_CreateOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_GetOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/order.OrderService/GetOrder", runtime.WithHTTPPathPattern("/order.OrderService/GetOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_OrderService_GetOrder_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_GetOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_UpdateOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/order.OrderService/UpdateOrder", runtime.WithHTTPPathPattern("/order.OrderService/UpdateOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_OrderService_UpdateOrder_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_UpdateOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_DeleteOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/order.OrderService/DeleteOrder", runtime.WithHTTPPathPattern("/order.OrderService/DeleteOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_OrderService_DeleteOrder_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_DeleteOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_ListOrders_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/order.OrderService/ListOrders", runtime.WithHTTPPathPattern("/order.OrderService/ListOrders"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_OrderService_ListOrders_0(annotatedContext, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_ListOrders_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+
+	return nil
+}
+
+// RegisterOrderServiceHandlerFromEndpoint is same as RegisterOrderServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterOrderServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.NewClient(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Errorf("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Errorf("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+	return RegisterOrderServiceHandler(ctx, mux, conn)
+}
+
+// RegisterOrderServiceHandler registers the http handlers for service OrderService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterOrderServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterOrderServiceHandlerClient(ctx, mux, NewOrderServiceClient(conn))
+}
+
+// RegisterOrderServiceHandlerClient registers the http handlers for service OrderService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "OrderServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "OrderServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "OrderServiceClient" to call the correct interceptors. This client ignores the HTTP middlewares.
+func RegisterOrderServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client OrderServiceClient) error {
+	mux.Handle(http.MethodPost, pattern_OrderService_CreateOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/order.OrderService/CreateOrder", runtime.WithHTTPPathPattern("/order.OrderService/CreateOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_OrderService_CreateOrder_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_CreateOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_GetOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/order.OrderService/GetOrder", runtime.WithHTTPPathPattern("/order.OrderService/GetOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_OrderService_GetOrder_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_GetOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_UpdateOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/order.OrderService/UpdateOrder", runtime.WithHTTPPathPattern("/order.OrderService/UpdateOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_OrderService_UpdateOrder_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_UpdateOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_DeleteOrder_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/order.OrderService/DeleteOrder", runtime.WithHTTPPathPattern("/order.OrderService/DeleteOrder"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_OrderService_DeleteOrder_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_DeleteOrder_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	mux.Handle(http.MethodPost, pattern_OrderService_ListOrders_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		annotatedContext, err := runtime.AnnotateContext(ctx, mux, req, "/order.OrderService/ListOrders", runtime.WithHTTPPathPattern("/order.OrderService/ListOrders"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_OrderService_ListOrders_0(annotatedContext, inboundMarshaler, client, req, pathParams)
+		annotatedContext = runtime.NewServerMetadataContext(annotatedContext, md)
+		if err != nil {
+			runtime.HTTPError(annotatedContext, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		forward_OrderService_ListOrders_0(annotatedContext, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+	})
+	return nil
+}
+
+var (
+	pattern_OrderService_CreateOrder_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"order.OrderService", "CreateOrder"}, ""))
+	pattern_OrderService_GetOrder_0    = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"order.OrderService", "GetOrder"}, ""))
+	pattern_OrderService_UpdateOrder_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"order.OrderService", "UpdateOrder"}, ""))
+	pattern_OrderService_DeleteOrder_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"order.OrderService", "DeleteOrder"}, ""))
+	pattern_OrderService_ListOrders_0  = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"order.OrderService", "ListOrders"}, ""))
+)
+
+var (
+	forward_OrderService_CreateOrder_0 = runtime.ForwardResponseMessage
+	forward_OrderService_GetOrder_0    = runtime.ForwardResponseMessage
+	forward_OrderService_UpdateOrder_0 = runtime.ForwardResponseMessage
+	forward_OrderService_DeleteOrder_0 = runtime.ForwardResponseMessage
+	forward_OrderService_ListOrders_0  = runtime.ForwardResponseMessage
+)