package db import ( "errors" "fmt" "github.com/coopernurse/gorp" ) func NewHealthChecker(dbm *gorp.DbMap) *healthChecker { return &healthChecker{dbMap: dbm} } type healthChecker struct { dbMap *gorp.DbMap } func (hc *healthChecker) Healthy() (err error) { if err = hc.dbMap.Db.Ping(); err != nil { err = fmt.Errorf("database error: %v", err) return } num, err := hc.dbMap.SelectInt("SELECT 1") if err != nil { return } if num != 1 { err = errors.New("unable to connect to database") } return }