No response received from Go server

I use postgresql and go and even the postman. I'm trying to check the login and password in the database. But the response from the server do not get

func checkUser(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    var rec User
    err := json.NewDecoder(r.Body).Decode(&rec)
    if err != nil || rec.Login == "" || rec.Password == "" {
        w.WriteHeader(400)
        return
    }
    result := db.QueryRow("select password from users where login ='&1'", rec.Login)
    if err != nil {
        w.WriteHeader(500)
        return
    }

    var storedRecs User

    err = result.Scan(storedRecs.Password)
    if err != nil {
        if err == sql.ErrNoRows {
            w.WriteHeader(401)
            return
        }
        w.WriteHeader(500) //PROBLEM HERE
        return
    }
    if err = bcrypt.CompareHashAndPassword([]byte(storedRecs.Password), []byte(rec.Password)); err != nil {
        w.WriteHeader(401)
    }

    w.Write([]byte(fmt.Sprintf("Well done")))
}