github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/utils/validateutil/string_equal.go (about)

     1  /*
     2   * Copyright (C) 2020 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package validateutil
    19  
    20  import (
    21  	validation "github.com/go-ozzo/ozzo-validation"
    22  	"github.com/pkg/errors"
    23  )
    24  
    25  // StringEquals returns a validation rule checking if the value is equal to the given string.
    26  func StringEquals(str string) validation.RuleFunc {
    27  	return func(value interface{}) error {
    28  		s, _ := value.(string)
    29  		if s != str {
    30  			return errors.New("unexpected string")
    31  		}
    32  		return nil
    33  	}
    34  }