valitovgaziz
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
package database
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import (
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"api_yal/internal/config"
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"api_yal/migrations"
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"database/sql"
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"fmt"
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"time"
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"github.com/golang-migrate/migrate/v4"
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migratepg "github.com/golang-migrate/migrate/v4/database/postgres"
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"github.com/golang-migrate/migrate/v4/source/iofs"
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"go.uber.org/zap"
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gormpg "gorm.io/driver/postgres"
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"gorm.io/gorm"
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"api_yal/internal/logger"
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)
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func NewPostgresConnection(cfg *config.Config) (*gorm.DB, error) {
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zapLogger := logger.Get()
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zapLogger.Info("Start connect to Postgres DB")
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dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=UTC",
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cfg.DBHost, cfg.DBUser, cfg.DBPassword, cfg.DBName, cfg.DBPort)
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zapLogger.Info("dsn = %s", zap.String("dsn", dsn))
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db, err := gorm.Open(gormpg.Open(dsn), &gorm.Config{})
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if err != nil {
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return nil, fmt.Errorf("failed to connect to database: %w", err)
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}
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zapLogger.Info("Configure connection pool")
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sqlDB, err := db.DB()
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if err != nil {
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return nil, fmt.Errorf("failed to get underlying sql.DB: %w", err)
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}
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sqlDB.SetMaxOpenConns(25)
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sqlDB.SetMaxIdleConns(10)
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sqlDB.SetConnMaxLifetime(30 * time.Minute)
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zapLogger.Info("Run database migrations")
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if err := runMigrations(sqlDB); err != nil {
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return nil, fmt.Errorf("failed to run migrations: %w", err)
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}
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zapLogger.Info("Migrations completed successfully")
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zapLogger.Info("Successfully connected to database")
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return db, nil
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}
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func runMigrations(sqlDB *sql.DB) error {
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zapLogger := logger.Get()
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source, err := iofs.New(migrations.FS, ".")
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if err != nil {
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return fmt.Errorf("failed to create migration source: %w", err)
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}
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driver, err := migratepg.WithInstance(sqlDB, &migratepg.Config{})
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if err != nil {
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return fmt.Errorf("failed to create postgres driver: %w", err)
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}
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m, err := migrate.NewWithInstance("iofs", source, "postgres", driver)
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if err != nil {
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return fmt.Errorf("failed to create migrate instance: %w", err)
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}
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if err := m.Up(); err != nil && err != migrate.ErrNoChange {
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zapLogger.Error("Migration error", zap.Error(err))
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return fmt.Errorf("failed to apply migrations: %w", err)
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}
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return nil
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}
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