groups-management/storage/storage.go

package storage

import (
	"fmt"

	"github.com/spf13/viper"
)

type Storage interface {
	CreateGroup(Group) error
	GetGroup(string) (*Group, error)
	GetGroups([]string) ([]Group, error)
	GetGroupsByIds([]string) ([]Group, error)
	UpdateGroup(Group) error
	/*******************************************************/
	CreateGroupMember(GroupMember) error
	GetGroupMember(string) (*GroupMember, error)
	GetGroupsMember([]string) ([]GroupMember, error)
	GetGroupsMemberByIds([]string) ([]GroupMember, error)
	UpdateGroupMember(GroupMember) error
	DeleteGroupMember(string) error
}

func NewStorage(cfg *viper.Viper) (Storage, error) {
	var (
		storage_type = cfg.GetString("storage.db.type")
	)

	switch storage_type {
	case "mongodb":
		s, err := NewMongoDBStorage(cfg)
		return s, err
	case "psql":
		s, err := NewPostgresqlStorage(cfg)
		return s, err
	default:
		return nil, fmt.Errorf("storage type %v is not supported", storage_type)
	}

}