Function handler

src/server/middleware/validate.ts:6–16

(req, res, next)

export function validate(...validator: ValidationChain[]): Handler {
  const handler: Handler = (req, res, next) => {
    const result = validationResult(req);

    if (!result.isEmpty()) {
      res
        .status(422)
        .json({ errors: result.array(), message: 'Invalid Parameters' });
    } else {
      next();
    }
  };

  return compose([...validator, handler as any]);
}