@sumor/api-middleware/src/checkData.js

API Middleware is a middleware for Node.JS. It can easily expose function to api, and validate parameters

import { validate, format } from '@sumor/validator'
import APIError from './i18n/APIError.js'

export default (data, apiParameters) => {
  let errors = []
  for (const key in apiParameters) {
    try {
      data[key] = format(apiParameters[key], data[key])
      const fieldErrors = validate(
        {
          ...apiParameters[key],
          error: true
        },
        data[key]
      )
      errors = errors.concat(fieldErrors)
    } catch (e) {
      errors.push({
        code: 'FORMAT_FAILED',
        message: e.message
      })
    }
  }
  if (errors.length > 0) {
    throw new APIError('SUMOR_API_FIELDS_VALIDATION_FAILED', {}, errors)
  }
  return data
}