commit 2b8c774d0ae3bfc5f2f839d0f328c537623a0324
Author: Dmitrii <dmitii.miroshnikov@gmail.com>
Date:   Sat Jan 17 22:45:02 2026 +0300

    Initial commit;

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2eea525
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.env
\ No newline at end of file
diff --git a/cmd/main.go b/cmd/main.go
new file mode 100644
index 0000000..677bd21
--- /dev/null
+++ b/cmd/main.go
@@ -0,0 +1,9 @@
+package main
+
+import (
+	"steam_analyzer/internal/app"
+)
+
+func main() {
+	app.Run()
+}
diff --git a/config/config.dev.yaml b/config/config.dev.yaml
new file mode 100644
index 0000000..cf957ee
--- /dev/null
+++ b/config/config.dev.yaml
@@ -0,0 +1,20 @@
+server:
+  host: localhost
+  port: 3000
+  origins:
+    - localhost:3000
+
+database:
+  host: localhost
+  port: 32768
+  name: app-database
+  user: admin-programmer
+  password: oK79k(Q#E<#|YuBL6)|TMre9£DE}F2B,t}vYt5D6e<m.7vu<pp
+  migration_path: ./db/migrations
+
+steam_requester:
+  request_per_time: 4s
+  count_per_time: 1
+
+steam_worker:
+  request_per_time: 10m
diff --git a/config/config.prod.yaml b/config/config.prod.yaml
new file mode 100644
index 0000000..d33381a
--- /dev/null
+++ b/config/config.prod.yaml
@@ -0,0 +1,20 @@
+server:
+  host: 0.0.0.0
+  port: 3000
+  origins:
+    - localhost:3000
+
+database:
+  host: steam_db
+  port: 5432
+  name: app-database
+  user: admin-programmer
+  password: oK79k(Q#E<#|YuBL6)|TMre9£DE}F2B,t}vYt5D6e<m.7vu<pp
+  migration_path: ./db/migrations
+
+steam_requester:
+  request_per_time: 4s
+  count_per_time: 1
+
+steam_worker:
+  request_per_time: 10m
diff --git a/deploy/Dockerfile b/deploy/Dockerfile
new file mode 100644
index 0000000..a9e6fdc
--- /dev/null
+++ b/deploy/Dockerfile
@@ -0,0 +1,20 @@
+FROM golang:1.25-alpine AS builder
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod tidy && go mod download
+
+COPY . .
+RUN GOOS=linux go build -o steam-parser ./cmd/main.go
+
+# --------------------------------- #
+FROM alpine:latest AS configure
+
+RUN apk add --no-cache tzdata
+
+WORKDIR /app/
+
+COPY --from=builder /app/steam-parser .
+
+CMD ["./steam-parser"]
\ No newline at end of file
diff --git a/docker-compose.local.yaml b/docker-compose.local.yaml
new file mode 100644
index 0000000..30f96f0
--- /dev/null
+++ b/docker-compose.local.yaml
@@ -0,0 +1,37 @@
+version: "3.9"
+
+services:
+  db:
+    image: postgres:latest
+    container_name: steam_db
+    restart: unless-stopped
+    environment:
+      - POSTGRES_DB=${DATABASE_NAME}
+      - POSTGRES_USER=${DATABASE_USER}
+      - POSTGRES_PASSWORD=${DATABASE_PASSWORD}
+    ports:
+      - ${DATABASE_PORT}:5432
+    # volumes:
+      # - ./volumes/steam/db-data:/var/lib/postgresql/data
+    networks:
+      - overlay
+  
+  pgadmin:
+    image: dpage/pgadmin4:latest
+    container_name: steam_pgadmin
+    restart: unless-stopped
+    environment:
+      - PGADMIN_DEFAULT_EMAIL=${PGADMIN_DEFAULT_EMAIL}
+      - PGADMIN_DEFAULT_PASSWORD=${PGADMIN_DEFAULT_PASSWORD}
+    volumes:
+      - pgadmin_data:/var/lib/pgadmin
+    ports:
+      - ${PG_ADMIN_PORT}:80
+    networks:
+      - overlay
+
+networks:
+  overlay:
+
+volumes:
+  pgadmin_data:
\ No newline at end of file
diff --git a/docker-compose.yaml b/docker-compose.yaml
new file mode 100644
index 0000000..d4a7d46
--- /dev/null
+++ b/docker-compose.yaml
@@ -0,0 +1,59 @@
+version: "3.9"
+
+networks:
+  overlay:
+
+volumes:
+  pgadmin_data:
+
+services:
+  steam_parser:
+    image: dm1roshnikov/steam-parser:latest
+    ports:
+      - 3000:3000
+    volumes:
+      - ./config/config.prod.yaml:/app/config/config.yaml:ro
+    networks:
+      - overlay
+    depends_on:
+      db:
+        condition: service_healthy
+
+  db:
+    image: postgres:latest
+    container_name: steam_db
+    restart: unless-stopped
+    environment:
+      - POSTGRES_USER=${DATABASE_USER}
+      - POSTGRES_PASSWORD=${DATABASE_PASSWORD}
+      - POSTGRES_DB=${DATABASE_NAME}
+    ports:
+      - ${DATABASE_PORT}:5432
+    # volumes:
+      # - ./volumes/steam/db-data:/var/lib/postgresql/data
+    healthcheck:
+      test: 
+        [
+          "CMD-SHELL", 
+          "pg_isready -U $$POSTGRES_USER -d $$POSTGRES_DB"
+        ]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s 
+    networks:
+      - overlay
+  
+  pgadmin:
+    image: dpage/pgadmin4:latest
+    container_name: steam_pgadmin
+    restart: unless-stopped
+    environment:
+      - PGADMIN_DEFAULT_EMAIL=${PGADMIN_DEFAULT_EMAIL}
+      - PGADMIN_DEFAULT_PASSWORD=${PGADMIN_DEFAULT_PASSWORD}
+    volumes:
+      - pgadmin_data:/var/lib/pgadmin
+    ports:
+      - ${PGADMIN_PORT}:80
+    networks:
+      - overlay
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..1f55069
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,30 @@
+module steam_analyzer
+
+go 1.25.3
+
+require (
+	github.com/golang-migrate/migrate/v4 v4.19.1
+	github.com/google/uuid v1.6.0
+	github.com/gorilla/mux v1.8.1
+	github.com/ilyakaznacheev/cleanenv v1.5.0
+	github.com/jackc/pgx/v5 v5.7.6
+	github.com/lib/pq v1.10.9
+	github.com/mattn/go-sqlite3 v1.14.32
+	github.com/rs/cors v1.11.1
+	golang.org/x/time v0.14.0
+)
+
+require (
+	github.com/BurntSushi/toml v1.2.1 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/rogpeppe/go-internal v1.14.1 // indirect
+	golang.org/x/crypto v0.45.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..7395464
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,110 @@
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+go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0=
+golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
+golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
+golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 h1:slmdOY3vp8a7KQbHkL+FLbvbkgMqmXojpFUO/jENuqQ=
+olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3/go.mod h1:oVgVk4OWVDi43qWBEyGhXgYxt7+ED4iYNpTngSLX2Iw=
diff --git a/internal/app/app.go b/internal/app/app.go
new file mode 100644
index 0000000..dbd444f
--- /dev/null
+++ b/internal/app/app.go
@@ -0,0 +1,68 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"steam_analyzer/internal/config"
+	"steam_analyzer/internal/handler"
+	"steam_analyzer/internal/repository"
+	"steam_analyzer/internal/service"
+	"steam_analyzer/internal/steamreq"
+	"steam_analyzer/internal/utils"
+	"steam_analyzer/internal/utils/slogutils"
+	"steam_analyzer/pkg/logger"
+	"steam_analyzer/pkg/postgresql"
+	"steam_analyzer/pkg/server"
+
+	"github.com/gorilla/mux"
+)
+
+var steamItemURL = `https://steamcommunity.com/market/search/render/`
+
+func Run() {
+	cfg := config.MustLoadYaml("./config/config.dev.yaml")
+	logger := logger.New(cfg.Enviroment)
+
+	// db := repository.ConnectOrCreateDatabase()
+	// repo := repository.NewSQLLiteDatabase(db)
+	ctx := context.Background()
+
+	pool, err := postgresql.NewPGXPool(ctx, postgresql.CreateDBConnectionString(cfg.Database))
+	if err != nil {
+		logger.Error("Error while creating pool", slogutils.Error(err))
+		os.Exit(1)
+	}
+	repo := repository.NewPostgresDB(pool)
+	err = repo.InitDatabaseTables(ctx)
+	if err != nil {
+		logger.Error("Error while init tables", slogutils.Error(err))
+		os.Exit(1)
+	}
+
+	itemService := service.NewItemService(logger, repo)
+	requester := steamreq.NewRequester(steamItemURL, cfg.SteamRequester.RequestPerTime, cfg.SteamRequester.CountPerTime)
+
+	steamWorker := steamreq.NewSteamWorker(logger, requester, itemService, cfg.SteamWorker.RequestPerTime)
+	steamItems := []steamreq.SteamItems{
+		{
+			Query:    "case",
+			ItemType: "case",
+		},
+	}
+	go steamWorker.Start(ctx, steamItems)
+
+	router := mux.NewRouter()
+	steamHandler := handler.NewSteamHandler(itemService)
+	steamHandler.RegisterRoutes(router, "/steam")
+
+	server := server.New(cfg.Server, logger, router)
+	server.Run()
+}
+
+func PrintItems(items []steamreq.SteamMarketItem) {
+	for _, item := range items {
+		item.SellPrice = float64(item.SellPrice) / 100.0 * utils.CURRENCY_RUB
+		fmt.Println(item.Name, item.HashName, item.SellPrice, item.SellListings, item.AssetDescription.Classid)
+	}
+}
diff --git a/internal/config/config.go b/internal/config/config.go
new file mode 100644
index 0000000..51dc1e2
--- /dev/null
+++ b/internal/config/config.go
@@ -0,0 +1,76 @@
+package config
+
+import (
+	"log"
+	"os"
+	"time"
+
+	"github.com/ilyakaznacheev/cleanenv"
+)
+
+type Config struct {
+	Enviroment     string         `yaml:"enviroment" env:"ENVIROMENT" env-default:"local"`
+	Server         Server         `yaml:"server"`
+	Database       Database       `yaml:"database"`
+	SteamRequester SteamRequester `yaml:"steam_requester"`
+	SteamWorker    SteamWorker    `yaml:"steam_worker"`
+}
+
+type (
+	Server struct {
+		Host         string        `yaml:"host" env-default:"localhost"`
+		Port         string        `yaml:"port" env-default:"8080"`
+		IdleTimeout  time.Duration `yaml:"idle_timeout" env-default:"30s"`
+		WriteTimeout time.Duration `yaml:"write_timeout" env-default:"1s"`
+		ReadTimeout  time.Duration `yaml:"read_timeout" env-default:"1s"`
+		Origins      []string      `yaml:"origins" env-separator:"," env-default:"http://localhost:3000,"`
+	}
+	Database struct {
+		Host     string `yaml:"host" env:"DATABASE_HOST" env-description:"Database host" env-default:"localhost"`
+		Port     string `yaml:"port" env:"DATABASE_PORT" env-description:"Database port" env-default:"5432"`
+		Sslmode  string `yaml:"sslmode" env-description:"Database ssl mode" env-default:"disable"`
+		Name     string `yaml:"name" env-description:"Database name"`
+		User     string `yaml:"user" env-description:"Database user"`
+		Password string `yaml:"password" env-description:"Database user password"`
+
+		MaxConnAttempts int           `yaml:"max_conn_attempt" env-default:"5"`
+		ConnTimeout     time.Duration `yaml:"conn_timeout" env-default:"10s"`
+
+		MigrationPath string `yaml:"migration_path" env:"DATABASE_MIGRATION_PATH" env-description:"Migration path"`
+	}
+	SteamRequester struct {
+		RequestPerTime time.Duration `yaml:"request_per_time" env-description:"request limit per time" env-default:"5s"`
+		CountPerTime   int           `yaml:"count_per_time" env-description:"count limit per time" env-default:"1"`
+	}
+	SteamWorker struct {
+		RequestPerTime time.Duration `yaml:"request_per_time" env-description:"update prices time" env-default:"5m"`
+	}
+)
+
+func MustLoadYaml(configPath string) *Config {
+	if configPath == "" {
+		log.Fatal("config path is not set")
+	}
+
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		log.Fatalf("config path doesn't exist: %s", configPath)
+	}
+
+	var cfg Config
+
+	if err := cleanenv.ReadConfig(configPath, &cfg); err != nil {
+		log.Fatalf("cannot read config: %s", err)
+	}
+
+	return &cfg
+}
+
+func MustLoadEnv() *Config {
+	var cfg Config
+
+	if err := cleanenv.ReadEnv(&cfg); err != nil {
+		log.Fatalf("cannot read config: %s", err)
+	}
+
+	return &cfg
+}
diff --git a/internal/domain/item.go b/internal/domain/item.go
new file mode 100644
index 0000000..22d7e40
--- /dev/null
+++ b/internal/domain/item.go
@@ -0,0 +1,55 @@
+package domain
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type SteamItem struct {
+	ID      uuid.UUID
+	Name    string
+	ClassID string
+	GameID  int
+	Price   float64
+	Count   int
+	History []ItemPriceHistory
+}
+
+func (si SteamItem) ToDB() DBItem {
+	return DBItem{
+		ID:      si.ID,
+		Name:    si.Name,
+		ClassID: si.ClassID,
+		GameID:  si.GameID,
+	}
+}
+
+func (si SteamItem) ToDBHistory() DBItemHistory {
+	return DBItemHistory{
+		ItemID: si.ID,
+		Price:  si.Price,
+		Count:  si.Count,
+		Date:   time.Now(),
+	}
+}
+
+type ItemPriceHistory struct {
+	Price float64
+	Count int
+	Date  time.Time
+}
+
+type DBItem struct {
+	ID      uuid.UUID
+	Name    string
+	ClassID string
+	GameID  int
+}
+
+type DBItemHistory struct {
+	ItemID uuid.UUID
+	Price  float64
+	Count  int
+	Date   time.Time
+}
diff --git a/internal/handler/handler.go b/internal/handler/handler.go
new file mode 100644
index 0000000..d771bc5
--- /dev/null
+++ b/internal/handler/handler.go
@@ -0,0 +1,58 @@
+package handler
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"steam_analyzer/internal/repository"
+	"steam_analyzer/internal/utils/jsonutils"
+	"steam_analyzer/pkg/utils/httputils"
+
+	"github.com/gorilla/mux"
+)
+
+type ItemService interface {
+	GetAllItemsWithLastPrice(ctx context.Context, itemName string) ([]repository.ItemWithLastPrice, error)
+	// GetAllItemsWithLastPrice(itemName string) ([]*domain.SteamItem, error)
+}
+
+type SteamHandler struct {
+	itemService ItemService
+}
+
+func NewSteamHandler(itemService ItemService) SteamHandler {
+	return SteamHandler{
+		itemService: itemService,
+	}
+}
+
+func (h SteamHandler) RegisterRoutes(router *mux.Router, prefix string) {
+	steamRouter := router.PathPrefix(prefix)
+
+	getRouter := steamRouter.Methods(http.MethodGet).Subrouter()
+
+	getRouter.HandleFunc("/items", h.GetAllItemsWithLastPrice)
+}
+
+type GetAllItemsWithLastPriceResponse struct {
+	Result []repository.ItemWithLastPrice `json:"result"`
+}
+
+func (h SteamHandler) GetAllItemsWithLastPrice(w http.ResponseWriter, r *http.Request) {
+	name := r.URL.Query().Get("name")
+
+	if name == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		jsonutils.ToJSON(w, httputils.HTTPError{Message: "Name query param couldn't be empty"})
+		return
+	}
+
+	items, err := h.itemService.GetAllItemsWithLastPrice(r.Context(), name)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	jsonutils.ToJSON(w, GetAllItemsWithLastPriceResponse{Result: items})
+}
diff --git a/internal/repository/postgres.go b/internal/repository/postgres.go
new file mode 100644
index 0000000..b253f0c
--- /dev/null
+++ b/internal/repository/postgres.go
@@ -0,0 +1,202 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"steam_analyzer/internal/domain"
+	"steam_analyzer/pkg/postgresql"
+
+	"github.com/google/uuid"
+)
+
+type PostgresDB struct {
+	conn postgresql.PGXPool
+}
+
+func NewPostgresDB(conn postgresql.PGXPool) *PostgresDB {
+	return &PostgresDB{
+		conn: conn,
+	}
+}
+
+func (db PostgresDB) InitDatabaseTables(ctx context.Context) error {
+	createTable := `
+	CREATE TABLE IF NOT EXISTS item (
+		id UUID PRIMARY KEY, 
+		name TEXT,
+		class_id TEXT UNIQUE NOT NULL,
+		game_id INTEGER NOT NULL,
+		type_id INTEGER
+	);`
+	_, err := db.conn.Exec(ctx, createTable)
+	if err != nil {
+		return err
+	}
+
+	createTable = `
+	CREATE TABLE IF NOT EXISTS item_history (
+		item_id UUID REFERENCES item(id), 
+		price REAL,
+		count INTEGER,
+		date TIMESTAMPTZ NOT NULL,
+		PRIMARY KEY (item_id, date)
+	);`
+	_, err = db.conn.Exec(ctx, createTable)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (db PostgresDB) AddItem(ctx context.Context, item domain.DBItem) error {
+	query := `
+		INSERT INTO item (id, name, class_id, game_id) 
+			VALUES ($1, $2, $3, $4)
+	`
+
+	_, err := db.conn.Exec(ctx, query,
+		item.ID,
+		item.Name,
+		item.ClassID,
+		item.GameID,
+	)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (db PostgresDB) AddItemHistory(ctx context.Context, dbItemHistory domain.DBItemHistory) error {
+	query := `
+		INSERT INTO item_history (item_id, price, count, date) 
+			VALUES ($1, $2, $3, $4)
+	`
+
+	_, err := db.conn.Exec(ctx, query,
+		dbItemHistory.ItemID,
+		dbItemHistory.Price,
+		dbItemHistory.Count,
+		dbItemHistory.Date,
+	)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (db PostgresDB) GetItemByClassID(ctx context.Context, classID string) (*domain.SteamItem, error) {
+	query := `
+		SELECT
+			id,
+			name,
+			class_id
+		FROM item
+		WHERE class_id = $1
+	`
+
+	row := db.conn.QueryRow(ctx, query, classID)
+	var steamItem domain.SteamItem
+	err := row.Scan(
+		&steamItem.ID,
+		&steamItem.Name,
+		&steamItem.ClassID,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &steamItem, nil
+}
+
+func (db PostgresDB) GetItemPriceHistoryByID(ctx context.Context, itemID uuid.UUID, limit int, offset int) ([]domain.ItemPriceHistory, error) {
+	query := `
+		SELECT
+			price,
+			count,
+			date
+		FROM item_history
+		WHERE item_id = $1
+		ORDER BY date DESC
+		LIMIT $2
+		OFFSET $3
+	`
+
+	var itemPriceHistory []domain.ItemPriceHistory
+	rows, err := db.conn.Query(ctx, query,
+		itemID,
+		limit,
+		offset,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	for rows.Next() {
+		var steamItemPriceHistory domain.ItemPriceHistory
+
+		err := rows.Scan(
+			&steamItemPriceHistory.Price,
+			&steamItemPriceHistory.Count,
+			&steamItemPriceHistory.Date,
+		)
+		if err != nil {
+			fmt.Println("error while iterating rows", err)
+
+			continue
+		}
+		itemPriceHistory = append(itemPriceHistory, steamItemPriceHistory)
+	}
+
+	return itemPriceHistory, nil
+}
+
+func (db PostgresDB) GetItemsWithLastPriceByName(ctx context.Context, name string) ([]ItemWithLastPrice, error) {
+	query := `
+		SELECT
+			class_id,
+			name,
+			price,
+			last_date
+		FROM item
+		JOIN (
+			SELECT
+			item_id,
+			MAX(price) AS price,
+			MAX(date) AS last_date
+			FROM item_history
+			GROUP BY item_id
+		) as last_prices
+		ON item.id = last_prices.item_id
+		WHERE LOWER(name) like $1
+		ORDER BY last_date DESC;
+	`
+
+	rows, err := db.conn.Query(ctx, query,
+		"%"+name+"%",
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	var itemsWithLastPrice []ItemWithLastPrice
+	var itemWithLastPrice ItemWithLastPrice
+	for rows.Next() {
+		err := rows.Scan(
+			&itemWithLastPrice.ClassID,
+			&itemWithLastPrice.Name,
+			&itemWithLastPrice.Price,
+			&itemWithLastPrice.Date,
+		)
+		if err != nil {
+			fmt.Println("error while scaning row", err)
+			continue
+		}
+
+		itemsWithLastPrice = append(itemsWithLastPrice, itemWithLastPrice)
+	}
+
+	return itemsWithLastPrice, nil
+}
diff --git a/internal/repository/sqlite.go b/internal/repository/sqlite.go
new file mode 100644
index 0000000..d17d9c0
--- /dev/null
+++ b/internal/repository/sqlite.go
@@ -0,0 +1,221 @@
+// Package repository for repositorie's
+package repository
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"steam_analyzer/internal/domain"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type SQLLiteDatabase struct {
+	db *sql.DB
+}
+
+func NewSQLLiteDatabase(db *sql.DB) *SQLLiteDatabase {
+	return &SQLLiteDatabase{
+		db: db,
+	}
+}
+
+func ConnectOrCreateDatabase() *sql.DB {
+	// Connect to (or create) the SQLite database
+	db, err := sql.Open("sqlite3", "./steam_items.db")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return db
+}
+
+func (sqldb SQLLiteDatabase) InitDatabaseTables() error {
+	createTable := `
+	CREATE TABLE IF NOT EXISTS item (
+		id UUID PRIMARY KEY, 
+		name TEXT,
+		class_id TEXT UNIQUE NOT NULL,
+		game_id INTEGER NOT NULL,
+		type_id INTEGER
+	);`
+	_, err := sqldb.db.Exec(createTable)
+	if err != nil {
+		return err
+	}
+
+	createTable = `
+	CREATE TABLE IF NOT EXISTS item_history (
+		item_id UUID REFERENCES item(id), 
+		price REAL,
+		count INTEGER,
+		date DATETIME NOT NULL,
+		PRIMARY KEY (item_id, date)
+	);`
+	_, err = sqldb.db.Exec(createTable)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (sqldb SQLLiteDatabase) AddItem(item domain.DBItem) error {
+	query := `
+		INSERT INTO item (id, name, class_id, game_id) 
+			VALUES (?, ?, ?, ?)
+	`
+
+	_, err := sqldb.db.Exec(query,
+		item.ID,
+		item.Name,
+		item.ClassID,
+		item.GameID,
+	)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (sqldb SQLLiteDatabase) AddItemHistory(dbItemHistory domain.DBItemHistory) error {
+	query := `
+		INSERT INTO item_history (item_id, price, count, date) 
+			VALUES (?, ?, ?, ?)
+	`
+
+	_, err := sqldb.db.Exec(query,
+		dbItemHistory.ItemID,
+		dbItemHistory.Price,
+		dbItemHistory.Count,
+		dbItemHistory.Date,
+	)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (sqldb SQLLiteDatabase) GetItemByClassID(classID string) (*domain.SteamItem, error) {
+	query := `
+		SELECT
+			id,
+			name,
+			class_id
+		FROM item
+		WHERE class_id = ?
+	`
+
+	row := sqldb.db.QueryRow(query, classID)
+	var steamItem domain.SteamItem
+	err := row.Scan(
+		&steamItem.ID,
+		&steamItem.Name,
+		&steamItem.ClassID,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return &steamItem, nil
+}
+
+func (sqldb SQLLiteDatabase) GetItemPriceHistoryByID(itemID uuid.UUID, limit int, offset int) ([]domain.ItemPriceHistory, error) {
+	query := `
+		SELECT
+			price,
+			count,
+			date
+		FROM item_history
+		WHERE item_id = ?
+		ORDER BY date DESC
+		LIMIT ?
+		OFFSET ?
+	`
+
+	var itemPriceHistory []domain.ItemPriceHistory
+	rows, err := sqldb.db.Query(query,
+		itemID,
+		limit,
+		offset,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	for rows.Next() {
+		var steamItemPriceHistory domain.ItemPriceHistory
+
+		err := rows.Scan(
+			&steamItemPriceHistory.Price,
+			&steamItemPriceHistory.Count,
+			&steamItemPriceHistory.Date,
+		)
+		if err != nil {
+			fmt.Println("error while iterating rows", err)
+
+			continue
+		}
+		itemPriceHistory = append(itemPriceHistory, steamItemPriceHistory)
+	}
+
+	return itemPriceHistory, nil
+}
+
+func (sqldb SQLLiteDatabase) GetItemsWithLastPriceByName(name string) ([]ItemWithLastPrice, error) {
+	query := `
+		SELECT
+			item.name,
+			price,
+			last_date
+		FROM item
+		JOIN (
+			SELECT
+				item_id,
+				price,
+				max(date) as last_date
+			FROM item_history
+			GROUP BY item_id
+		) as last_prices
+		ON item.id = last_prices.item_id
+		WHERE item.name like ?
+		ORDER BY last_date DESC
+	`
+
+	rows, err := sqldb.db.Query(query,
+		"%"+name+"%",
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	var itemsWithLastPrice []ItemWithLastPrice
+	var itemWithLastPrice ItemWithLastPrice
+	var lastDateStr string
+	layout := "2006-01-02 15:04:05.999999999-07:00"
+	for rows.Next() {
+		err := rows.Scan(
+			&itemWithLastPrice.Name,
+			&itemWithLastPrice.Price,
+			&lastDateStr,
+		)
+		if err != nil {
+			fmt.Println("error while scaning row", err)
+			continue
+		}
+
+		lastDate, err := time.Parse(layout, lastDateStr)
+		if err != nil {
+			fmt.Println("error while parsing date", err)
+			continue
+		}
+		itemWithLastPrice.Date = lastDate
+
+		itemsWithLastPrice = append(itemsWithLastPrice, itemWithLastPrice)
+	}
+
+	return itemsWithLastPrice, nil
+}
diff --git a/internal/repository/type.go b/internal/repository/type.go
new file mode 100644
index 0000000..a242080
--- /dev/null
+++ b/internal/repository/type.go
@@ -0,0 +1,10 @@
+package repository
+
+import "time"
+
+type ItemWithLastPrice struct {
+	ClassID string
+	Name    string
+	Price   float64
+	Date    time.Time
+}
diff --git a/internal/service/item.go b/internal/service/item.go
new file mode 100644
index 0000000..c47b316
--- /dev/null
+++ b/internal/service/item.go
@@ -0,0 +1,129 @@
+// Package service for service's
+package service
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"log/slog"
+	"math"
+	"steam_analyzer/internal/domain"
+	"steam_analyzer/internal/repository"
+	"steam_analyzer/internal/utils"
+	"steam_analyzer/internal/utils/slogutils"
+	"steam_analyzer/pkg/postgresql"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type ItemRepository interface {
+	AddItem(ctx context.Context, item domain.DBItem) error
+	AddItemHistory(ctx context.Context, dbItemHistory domain.DBItemHistory) error
+	GetItemByClassID(ctx context.Context, classID string) (*domain.SteamItem, error)
+	GetItemPriceHistoryByID(ctx context.Context, itemID uuid.UUID, limit int, offset int) ([]domain.ItemPriceHistory, error)
+	GetItemsWithLastPriceByName(ctx context.Context, name string) ([]repository.ItemWithLastPrice, error)
+}
+
+type ItemService struct {
+	logger *slog.Logger
+
+	itemRepo ItemRepository
+}
+
+func NewItemService(logger *slog.Logger, itemRepo ItemRepository) *ItemService {
+	return &ItemService{
+		logger:   logger,
+		itemRepo: itemRepo,
+	}
+}
+
+func (s ItemService) AddItemWithHistory(ctx context.Context, item domain.SteamItem) error {
+	searchedItem, err := s.itemRepo.GetItemByClassID(ctx, item.ClassID)
+	if err != nil {
+		switch {
+		case errors.Is(err, sql.ErrNoRows):
+			s.logger.Info("Item is new, creating it")
+		default:
+			return err
+		}
+	}
+
+	if searchedItem != nil {
+		item.ID = searchedItem.ID
+	} else {
+		item.ID = uuid.New()
+
+		err = s.itemRepo.AddItem(ctx, item.ToDB())
+		if err != nil {
+			if pgErr, ok := err.(*pgconn.PgError); ok && pgErr.Code == postgresql.ErrConstraintUnique {
+				s.logger.Error("Error while adding item", slog.String("error", "Item already exists"))
+			} else {
+				s.logger.Error("Error while adding item", slogutils.Error(err))
+				return err
+			}
+		}
+	}
+
+	err = s.itemRepo.AddItemHistory(ctx, item.ToDBHistory())
+	if err != nil {
+		s.logger.Error("Error while adding item history", slogutils.Error(sql.ErrNoRows))
+
+		return err
+	}
+
+	return nil
+}
+
+func (s ItemService) GetItemWithPriceHistoryByClassID(ctx context.Context, classID string, limit int, offset int) (*domain.SteamItem, error) {
+	steamItem, err := s.itemRepo.GetItemByClassID(ctx, classID)
+	if err != nil {
+		s.logger.Error("Error while getting item by class id", slogutils.Error(err))
+
+		return nil, err
+	}
+
+	itemPriceHistory, err := s.itemRepo.GetItemPriceHistoryByID(ctx, steamItem.ID, limit, offset)
+	if err != nil {
+		s.logger.Error("Error while getting item price history by id", slogutils.Error(err))
+
+		return nil, err
+	}
+
+	steamItem.History = itemPriceHistory
+
+	return steamItem, nil
+}
+
+func (s ItemService) GetAllItemsWithLastPrice(ctx context.Context, itemName string) ([]repository.ItemWithLastPrice, error) {
+	s.logger.Info("ItemService.GetAllItemsWithLastPrice", slog.String("item name is", itemName))
+
+	items, err := s.itemRepo.GetItemsWithLastPriceByName(ctx, itemName)
+	if err != nil {
+		s.logger.Error("Error while getting item with last price", slogutils.Error(err))
+
+		return nil, err
+	}
+
+	for i, item := range items {
+		items[i].Price = formatPrice(item.Price)
+		items[i].Date = formatDate(item.Date)
+	}
+
+	return items, nil
+}
+
+func formatPrice(price float64) float64 {
+	formattedPrice := price / 100 * utils.CURRENCY_RUB
+	formattedPrice = math.Round(formattedPrice*100) / 100
+
+	return formattedPrice
+}
+
+func formatDate(date time.Time) time.Time {
+	location, _ := time.LoadLocation("Europe/Moscow")
+	foramettedDate := date.In(location)
+
+	return foramettedDate
+}
diff --git a/internal/steamreq/requester.go b/internal/steamreq/requester.go
new file mode 100644
index 0000000..4122d3c
--- /dev/null
+++ b/internal/steamreq/requester.go
@@ -0,0 +1,107 @@
+package steamreq
+
+import (
+	"fmt"
+	"math"
+	"net/http"
+	"steam_analyzer/internal/utils/jsonutils"
+	"time"
+
+	"golang.org/x/time/rate"
+)
+
+type Categories struct {
+	caseCat string
+	knife   string
+}
+
+type Requester struct {
+	baseMarketURL string
+	categories    Categories
+	limiter       *rate.Limiter
+}
+
+func NewRequester(baseURL string, perTime time.Duration, count int) *Requester {
+	return &Requester{
+		baseMarketURL: baseURL,
+		categories: Categories{
+			caseCat: "category_730_Type[]=tag_CSGO_Type_WeaponCase",
+			knife:   "category_730_Type[]=tag_CSGO_Type_Knife",
+		},
+		limiter: rate.NewLimiter(rate.Every(perTime), count),
+	}
+}
+
+func (r *Requester) GetItem(query string, itemType string) ([]SteamMarketItem, error) {
+	var steamMarketItems []SteamMarketItem
+
+	var pageCount int = 1
+	for i := 0; i < pageCount; i++ {
+		//if err := r.limiter.Wait(context.Background()); err != nil {
+		//	fmt.Printf("Limiter error: %v\n", err)
+		//	continue
+		//}
+
+		response, err := r.doRequest(query, itemType, i)
+		if err != nil {
+			fmt.Printf("Error while doing request. Query: %v. ItemType: %v. Start %v", query, itemType, i)
+			continue
+		}
+
+		steamMarketItems = append(steamMarketItems, response.Results...)
+		if i == 0 {
+			pageCount = int(math.Ceil(float64(response.TotalCount) / float64(response.Pagesize)))
+		}
+	}
+
+	return steamMarketItems, nil
+}
+
+func (r *Requester) doRequest(query string, itemType string, start int) (*Response, error) {
+	itemURL := r.createItemURL(query, itemType, start*10)
+
+	// fmt.Println(itemURL)
+
+	req, err := http.NewRequest("GET", itemURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("error while creating request %v", err)
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("error while making http request %v", err)
+	}
+	defer resp.Body.Close()
+
+	var steamResponse Response
+	err = jsonutils.FromJSON(resp.Body, &steamResponse)
+	if err != nil {
+		return nil, fmt.Errorf("error while getting item %v", err)
+	}
+
+	return &steamResponse, nil
+}
+
+func (r *Requester) createItemURL(item string, itemType string, start int) string {
+	marketItemsURL := r.baseMarketURL + `?query=%v&start=%v&count=%v&search_descriptions=0&sort_column=%v&sort_dir=%v&appid=730&norender=1`
+	count := 10
+	sortColumn := "price"
+	sortDir := "asc"
+
+	url := fmt.Sprintf(marketItemsURL,
+		item,
+		start,
+		count,
+		sortColumn,
+		sortDir,
+	)
+
+	switch itemType {
+	case "case":
+		url = url + "&" + r.categories.caseCat
+	case "knife":
+		url = url + "&" + r.categories.knife
+	}
+
+	return url
+}
diff --git a/internal/steamreq/type.go b/internal/steamreq/type.go
new file mode 100644
index 0000000..9d33930
--- /dev/null
+++ b/internal/steamreq/type.go
@@ -0,0 +1,33 @@
+package steamreq
+
+type Response struct {
+	Start      int               `json:"start"`
+	Pagesize   int               `json:"pagesize"`
+	TotalCount int               `json:"total_count"`
+	Results    []SteamMarketItem `json:"results"`
+}
+
+type SteamMarketItem struct {
+	Name             string  `json:"name"`
+	HashName         string  `json:"hash_name"`
+	SellListings     int     `json:"sell_listings"`
+	SellPrice        float64 `json:"sell_price"`
+	SellPriceText    string  `json:"sell_price_text"`
+	AppIcon          string  `json:"app_icon"`
+	AppName          string  `json:"app_name"`
+	AssetDescription struct {
+		Appid           int    `json:"appid"`
+		Classid         string `json:"classid"`
+		Instanceid      string `json:"instanceid"`
+		BackgroundColor string `json:"background_color"`
+		IconURL         string `json:"icon_url"`
+		Tradable        int    `json:"tradable"`
+		Name            string `json:"name"`
+		NameColor       string `json:"name_color"`
+		Type            string `json:"type"`
+		MarketName      string `json:"market_name"`
+		MarketHashName  string `json:"market_hash_name"`
+		Commodity       int    `json:"commodity"`
+	} `json:"asset_description"`
+	SalePriceText string `json:"sale_price_text"`
+}
diff --git a/internal/steamreq/worker.go b/internal/steamreq/worker.go
new file mode 100644
index 0000000..4e8c5c3
--- /dev/null
+++ b/internal/steamreq/worker.go
@@ -0,0 +1,80 @@
+package steamreq
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"steam_analyzer/internal/domain"
+	"steam_analyzer/internal/utils/slogutils"
+	"strconv"
+	"time"
+)
+
+type IRequester interface {
+	GetItem(query string, itemType string) ([]SteamMarketItem, error)
+}
+
+type ItemService interface {
+	AddItemWithHistory(ctx context.Context, item domain.SteamItem) error
+}
+
+type SteamReqWorker struct {
+	logger      *slog.Logger
+	requester   IRequester
+	itemService ItemService
+	reqPer      time.Duration
+}
+
+func NewSteamWorker(logger *slog.Logger, requester IRequester, itemService ItemService, reqPer time.Duration) *SteamReqWorker {
+	return &SteamReqWorker{
+		logger:      logger,
+		requester:   requester,
+		itemService: itemService,
+		reqPer:      reqPer,
+	}
+}
+
+type SteamItems struct {
+	Query    string
+	ItemType string
+}
+
+func (w SteamReqWorker) Start(ctx context.Context, items []SteamItems) {
+	for {
+		for _, item := range items {
+			items, err := w.requester.GetItem(item.Query, item.ItemType)
+			if err != nil {
+				w.logger.Error("Error while request item from steam", slogutils.Error(err))
+
+				os.Exit(1)
+			}
+			w.logger.Info("Succesfully get items", slog.String("items count is", strconv.Itoa(len(items))))
+
+			domainItems := CreateItemsFromRequest(items)
+			for _, domainItem := range domainItems {
+				err := w.itemService.AddItemWithHistory(ctx, domainItem)
+				if err != nil {
+					w.logger.Error("Error while adding item with history", slogutils.Error(err))
+				}
+			}
+		}
+
+		time.Sleep(w.reqPer)
+	}
+}
+
+func CreateItemsFromRequest(smi []SteamMarketItem) []domain.SteamItem {
+	steamItem := make([]domain.SteamItem, 0, len(smi))
+
+	for _, item := range smi {
+		steamItem = append(steamItem, domain.SteamItem{
+			Name:    item.Name,
+			ClassID: item.AssetDescription.Classid,
+			GameID:  item.AssetDescription.Appid,
+			Price:   item.SellPrice,
+			Count:   item.SellListings,
+		})
+	}
+
+	return steamItem
+}
diff --git a/internal/utils/jsonutils/jsonutils.go b/internal/utils/jsonutils/jsonutils.go
new file mode 100644
index 0000000..cb243f5
--- /dev/null
+++ b/internal/utils/jsonutils/jsonutils.go
@@ -0,0 +1,16 @@
+package jsonutils
+
+import (
+	"encoding/json"
+	"io"
+)
+
+func ToJSON(w io.Writer, v interface{}) error {
+	e := json.NewEncoder(w)
+	return e.Encode(v)
+}
+
+func FromJSON(r io.Reader, v interface{}) error {
+	d := json.NewDecoder(r)
+	return d.Decode(v)
+}
diff --git a/internal/utils/slogutils/slogutils.go b/internal/utils/slogutils/slogutils.go
new file mode 100644
index 0000000..0a2cc3c
--- /dev/null
+++ b/internal/utils/slogutils/slogutils.go
@@ -0,0 +1,10 @@
+package slogutils
+
+import "log/slog"
+
+func Error(err error) slog.Attr {
+	return slog.Attr{
+		Key:   "error",
+		Value: slog.StringValue(err.Error()),
+	}
+}
diff --git a/internal/utils/utils.go b/internal/utils/utils.go
new file mode 100644
index 0000000..0ab4105
--- /dev/null
+++ b/internal/utils/utils.go
@@ -0,0 +1,3 @@
+package utils
+
+var CURRENCY_RUB = 78.41
diff --git a/pkg/logger/logger.go b/pkg/logger/logger.go
new file mode 100644
index 0000000..3ad42fc
--- /dev/null
+++ b/pkg/logger/logger.go
@@ -0,0 +1,33 @@
+package logger
+
+import (
+	"log/slog"
+	"os"
+)
+
+const (
+	envLocal       = "local"
+	envDevelopment = "development"
+	envProduction  = "production"
+)
+
+func New(env string) *slog.Logger {
+	var logger *slog.Logger
+
+	switch env {
+	case envLocal:
+		logger = slog.New(
+			slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug}),
+		)
+	case envDevelopment:
+		logger = slog.New(
+			slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug}),
+		)
+	case envProduction:
+		logger = slog.New(
+			slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}),
+		)
+	}
+
+	return logger
+}
diff --git a/pkg/postgresql/errors.go b/pkg/postgresql/errors.go
new file mode 100644
index 0000000..d33bbe5
--- /dev/null
+++ b/pkg/postgresql/errors.go
@@ -0,0 +1,11 @@
+package postgresql
+
+import "github.com/jackc/pgx/v5"
+
+var (
+	ErrNoRows = pgx.ErrNoRows
+)
+
+const (
+	ErrConstraintUnique = "23505"
+)
diff --git a/pkg/postgresql/migrations.go b/pkg/postgresql/migrations.go
new file mode 100644
index 0000000..026a028
--- /dev/null
+++ b/pkg/postgresql/migrations.go
@@ -0,0 +1,82 @@
+package postgresql
+
+import (
+	"errors"
+	"fmt"
+	"log"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/postgres"
+	_ "github.com/golang-migrate/migrate/v4/source/file"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"github.com/jackc/pgx/v5/stdlib"
+)
+
+func RunMigrationsWithString(connectionString string, migrationDir string) error {
+	m, err := migrate.New(
+		"file://"+migrationDir,
+		connectionString)
+	if err != nil {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+	if err := m.Up(); err != nil {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	if err = m.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	log.Println("✅ Migrations applied")
+	return nil
+}
+
+type MigrationHandler struct {
+	migrate *migrate.Migrate
+}
+
+func (migration *MigrationHandler) Up() error {
+	if err := migration.migrate.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	log.Println("✅ Migrations applied")
+	return nil
+}
+
+func (migration *MigrationHandler) Down() error {
+	if err := migration.migrate.Down(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	log.Println("✅ Migrations applied")
+	return nil
+}
+
+func NewMigrationWithInstance(pool *pgxpool.Pool, migrationDir string) (*MigrationHandler, error) {
+	db := stdlib.OpenDBFromPool(pool)
+
+	driver, err := postgres.WithInstance(db, &postgres.Config{})
+	if err != nil {
+		return nil, fmt.Errorf("create migration driver: %w", err)
+	}
+
+	m, err := migrate.NewWithDatabaseInstance(
+		"file://"+migrationDir,
+		"postgres", driver)
+	if err != nil {
+		return nil, fmt.Errorf("create migrator: %w", err)
+	}
+
+	//m.Down()
+
+	/*if err = m.Up(); err != nil && !errors.Is(err, migrate.ErrNoChange) {
+		return fmt.Errorf("apply migrations: %w", err)
+	}
+
+	log.Println("✅ Migrations applied")*/
+
+	return &MigrationHandler{
+		migrate: m,
+	}, nil
+}
diff --git a/pkg/postgresql/pgx.go b/pkg/postgresql/pgx.go
new file mode 100644
index 0000000..c1dc9b1
--- /dev/null
+++ b/pkg/postgresql/pgx.go
@@ -0,0 +1,33 @@
+package postgresql
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+
+	_ "github.com/lib/pq"
+)
+
+type PGXClient interface {
+	Prepare(query string) (*sql.Stmt, error)
+	ExecContext(ctx context.Context, query string, arguments ...interface{}) (sql.Result, error)
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+	QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row
+	BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
+}
+
+func NewPGXClient(psqlInfo string) (*sql.DB, error) {
+	const op = "repository.postgresql.pq.NewConnection"
+
+	db, err := sql.Open("pgx", psqlInfo)
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", op, err)
+	}
+
+	err = db.Ping()
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", op, err)
+	}
+
+	return db, nil
+}
diff --git a/pkg/postgresql/pgx_pool.go b/pkg/postgresql/pgx_pool.go
new file mode 100644
index 0000000..57ed591
--- /dev/null
+++ b/pkg/postgresql/pgx_pool.go
@@ -0,0 +1,26 @@
+package postgresql
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+type PGXPool interface {
+	Exec(ctx context.Context, query string, args ...any) (pgconn.CommandTag, error)
+	Query(ctx context.Context, query string, args ...any) (pgx.Rows, error)
+	QueryRow(ctx context.Context, query string, args ...any) pgx.Row
+	SendBatch(ctx context.Context, b *pgx.Batch) pgx.BatchResults
+	BeginTx(ctx context.Context, opts pgx.TxOptions) (pgx.Tx, error)
+}
+
+func NewPGXPool(ctx context.Context, connectionString string) (*pgxpool.Pool, error) {
+	pool, err := pgxpool.New(ctx, connectionString)
+	if err != nil {
+		return nil, err
+	}
+
+	return pool, nil
+}
diff --git a/pkg/postgresql/pq.go b/pkg/postgresql/pq.go
new file mode 100644
index 0000000..b18505b
--- /dev/null
+++ b/pkg/postgresql/pq.go
@@ -0,0 +1,41 @@
+package postgresql
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+
+	_ "github.com/lib/pq"
+)
+
+type PQClient interface {
+	Prepare(query string) (*sql.Stmt, error)
+	Exec(query string, arguments ...interface{}) (sql.Result, error)
+	Query(query string, args ...interface{}) (*sql.Rows, error)
+	QueryRow(query string, args ...interface{}) *sql.Row
+	// Begin(ctx context.Context) (*sql.Tx, error)
+}
+
+type PQClientContext interface {
+	Prepare(query string) (*sql.Stmt, error)
+	ExecContext(ctx context.Context, query string, arguments ...interface{}) (sql.Result, error)
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+	QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row
+	BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
+}
+
+func NewPQClient(psqlInfo string) (*sql.DB, error) {
+	const op = "repository.postgresql.pq.NewConnection"
+
+	db, err := sql.Open("postgres", psqlInfo)
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", op, err)
+	}
+
+	err = db.Ping()
+	if err != nil {
+		return nil, fmt.Errorf("%s: %w", op, err)
+	}
+
+	return db, nil
+}
diff --git a/pkg/postgresql/utils.go b/pkg/postgresql/utils.go
new file mode 100644
index 0000000..96ee4c5
--- /dev/null
+++ b/pkg/postgresql/utils.go
@@ -0,0 +1,19 @@
+package postgresql
+
+import (
+	"fmt"
+	"net/url"
+	"steam_analyzer/internal/config"
+)
+
+func CreateDBConnectionString(cfg config.Database) string {
+	return fmt.Sprintf(
+		"postgres://%s:%s@%s:%s/%s?sslmode=%s",
+		cfg.User,
+		url.QueryEscape(cfg.Password),
+		cfg.Host,
+		cfg.Port,
+		cfg.Name,
+		cfg.Sslmode,
+	)
+}
diff --git a/pkg/server/server.go b/pkg/server/server.go
new file mode 100644
index 0000000..f956470
--- /dev/null
+++ b/pkg/server/server.go
@@ -0,0 +1,58 @@
+// Package server
+// Contain struct and interface for project server
+package server
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"steam_analyzer/internal/config"
+	"time"
+)
+
+type ILogger interface {
+	Info(msg string, args ...any)
+	Debug(msg string, args ...any)
+	Error(msg string, args ...any)
+}
+
+type Server struct {
+	httpServer *http.Server
+	logger     ILogger
+}
+
+type ServerParam struct {
+	Host         string
+	Port         string
+	Origins      []string
+	IdleTimeout  time.Duration
+	WriteTimeout time.Duration
+	ReadTimeout  time.Duration
+}
+
+func New(cfg config.Server, log ILogger, h http.Handler) *Server {
+	return &Server{
+		httpServer: &http.Server{
+			Addr:    cfg.Host + ":" + cfg.Port,
+			Handler: configureCORSFor(h, cfg.Origins),
+			// ErrorLog:     log,
+			IdleTimeout:  cfg.IdleTimeout,
+			WriteTimeout: cfg.WriteTimeout,
+			ReadTimeout:  cfg.ReadTimeout,
+		},
+		logger: log,
+	}
+}
+
+func (s *Server) Run() {
+	s.logger.Info(fmt.Sprintf("Server started at %s", s.httpServer.Addr))
+
+	if err := s.httpServer.ListenAndServe(); err != nil {
+		s.logger.Error("Cannot start server", slog.String("error", err.Error()))
+	}
+}
+
+func (s *Server) Stop(ctx context.Context) error {
+	return s.httpServer.Shutdown(ctx)
+}
diff --git a/pkg/server/utils.go b/pkg/server/utils.go
new file mode 100644
index 0000000..82daa4c
--- /dev/null
+++ b/pkg/server/utils.go
@@ -0,0 +1,27 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/rs/cors"
+)
+
+func configureCORSFor(handler http.Handler, origins []string) http.Handler {
+	ch := cors.New(cors.Options{
+		// # http://mywebsite-domain.com/ is configured in hosts (localhost:80 alias)
+		AllowedOrigins: origins,
+		AllowedMethods: []string{
+			http.MethodPost,
+			http.MethodGet,
+			http.MethodPut,
+			http.MethodDelete,
+			// http.MethodOptions,
+		},
+		OptionsPassthrough: false,
+		AllowCredentials:   true,
+
+		// Debug: true,
+	})
+
+	return ch.Handler(handler)
+}
diff --git a/pkg/utils/httputils/httputils.go b/pkg/utils/httputils/httputils.go
new file mode 100644
index 0000000..c888178
--- /dev/null
+++ b/pkg/utils/httputils/httputils.go
@@ -0,0 +1,5 @@
+package httputils
+
+type HTTPError struct {
+	Message string `json:"message"`
+}
diff --git a/pkg/utils/jsonutils/jsonutils.go b/pkg/utils/jsonutils/jsonutils.go
new file mode 100644
index 0000000..55a6a25
--- /dev/null
+++ b/pkg/utils/jsonutils/jsonutils.go
@@ -0,0 +1,19 @@
+package jsonutils
+
+import (
+	"encoding/json"
+	"io"
+)
+
+// ToJSON serializes the given interface into a string based JSON format
+func ToJSON(i interface{}, w io.Writer) error {
+	e := json.NewEncoder(w)
+	return e.Encode(i)
+}
+
+// FromJSON deserializes the object from JSON string
+// in an io.Reader to the given interface
+func FromJSON(i interface{}, r io.Reader) error {
+	d := json.NewDecoder(r)
+	return d.Decode(i)
+}