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postgres_db.go
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/
postgres_db.go
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package storage
import (
"errors"
"os"
"github.com/golang-migrate/migrate"
"github.com/golang-migrate/migrate/database/postgres"
_ "github.com/golang-migrate/migrate/source/file" // import file driver for migrate
"github.com/jmoiron/sqlx"
"github.com/sash20m/go-api-template/pkg/logger"
)
func NewPostgresDB() (*Storage, error) {
connStr := "host=" + os.Getenv("DB_HOST") + " user=" + os.Getenv("DB_USER") + " dbname=" + os.Getenv("DB_NAME") + " password=" + os.Getenv("DB_PASSWORD") + " sslmode=disable"
logger.Log.Info(connStr, " eee")
db, err := sqlx.Connect("postgres", connStr)
if err != nil {
return &Storage{}, err
}
return &Storage{db: db}, nil
}
// MigratePostgres migrates the postgres db to a new version.
func (s *Storage) MigratePostgres(migrationsPath string) error {
pgStorage, err := postgres.WithInstance(s.db.DB, &postgres.Config{})
if err != nil {
return err
}
m, err := migrate.NewWithDatabaseInstance(migrationsPath, "postgres", pgStorage)
if err != nil {
return err
}
if err := m.Up(); err != nil {
if errors.Is(err, migrate.ErrNoChange) {
logger.Log.Info("No migrations to run")
} else {
return err
}
}
logger.Log.Info("Migrations script ran successfully")
return nil
}