Question

我试图在Express验证程序中有条件地运行检查，因为我传递了req，但是校验部分将不会有条件地运行，因此可以轻松处理验证器的功能部分。请帮助

我尝试将检查部件转为功能，但无法正常工作。这是我想要达到的目标，但进修失败

const onewayCheck = body('tripType').equals('one-way') ? [
  body('currentOfficeLocation')
    .exists({ checkFalsy: true })
    .withMessage('currentOfficeLocation Current Office Location is required')
    .isInt()
    .withMessage('currentOfficeLocation Current Office Location must be an integer'),
  body('destination')
    .exists({ checkFalsy: true })
    .withMessage('destination Destination is required')
    .isInt()
    .withMessage('destination Destination must be an integer'),
  body('departureDate')
    .exists({ checkFalsy: true })
    .withMessage('departureDate Departure date is required'),
  body('travelreasons')
    .exists({ checkFalsy: true })
    .withMessage('travelReasons Travel Reasons is required')
    .isString()
    .withMessage('travelReasons Travel Reasons should be strings'),
  body('accommodation')
    .exists({ checkFalsy: true })
    .withMessage('accommodation Accommodation is required')
    .isInt()
    .withMessage('accommodation Accommodation must be an integer'),
] : [];

我要确保检查锅

Answer 1

在验证过程中无需运行检查。相反，您可以在控制器中检查它。
例如，假设您像这样

检查控制器中的验证错误

bcftools_filter

您可以通过这种方式检查是否返回错误

input

这样，验证逻辑将在任何情况下运行，但是仅当const errors = validationResult(req); if (!errors.isEmpty()) { return res.status(422).json({ errors: errors.array() }); }的值为if (req.body.tripType === 'one-way') { const errors = validationResult(req); if (!errors.isEmpty()) { return res.status(422).json({ errors: errors.array() }); } }时，您才返回验证错误。

Answer 2

有人帮助我解决了问题 /// route.js

const router = express.Router();

const validate = (validations, tripType) => {
  return async (req, res, next) => {
    if (req.body.tripType === tripType) {
      await Promise.all(validations.map(validation => validation.run(req)));
    }
    return next();
  };
};

router.post('/request', authenticate, validateRequestType, validate(onewayCheck(), 'one-way'),
  onewayValidateInput, multicityCheck, multicityValidateInput, tripRequest);

export default router;

///in the validation file
const onewayCheck = () => [
  body('currentOfficeLocation')
    .exists({ checkFalsy: true })
    .withMessage('currentOfficeLocation Current Office Location is required')
    .isInt()
    .withMessage('currentOfficeLocation Current Office Location must be an integer'),
  body('destination')
    .exists({ checkFalsy: true })
    .withMessage('destination Destination is required')
    .isInt()
    .withMessage('destination Destination must be an integer'),
  body('departureDate')
    .exists({ checkFalsy: true })
    .withMessage('departureDate Departure date is required'),
  body('travelreasons')
    .exists({ checkFalsy: true })
    .withMessage('travelReasons Travel Reasons is required')
    .isString()
    .withMessage('travelReasons Travel Reasons should be strings'),
  body('accommodation')
    .exists({ checkFalsy: true })
    .withMessage('accommodation Accommodation is required')
    .isInt()
    .withMessage('accommodation Accommodation must be an integer'),
];

Answer 3

我能够通过在路由中使用中间件来解决此问题


router
  .post('/request', validate(onewayCheck(), 'one-way'),
    onewayValidateInput,
    validate(multicityCheck(), 'Multi-city'), multicityValidateInput, tripRequest)

validate函数检查请求的类型


const validate = (validations, tripType) => async (req, res, next) => {
  if (req.body.tripType === tripType) {
    await Promise.all(validations.map(validation => validation.run(req)));
  }
  return next();
};

在express-validator中有条件地运行检查

3 个答案: