A set of useful utils for http methods. Includes converter/validator for http query params or body attributes, custom error types.

Converter/validator

How to use:

  const { Converter, ValidationError } = require('@rfcx/http-utils')
  const convertedParams = {}
  const params = new Converter(req.body, convertedParams, { camelize: true })

  params.convert('filename').toString()
  params.convert('duration').toInt().minimum(1)
  params.convert('sample_rate').toInt().default(1).minimum(1)
  params.convert('channels_count').optional().toInt().default(1).minimum(1)
  params.convert('bit_rate').toInt().default(1).minimum(1)
  params.convert('audio_codec').toString()
  params.convert('sha1_checksum').toString()
  params.convert('meta').optional()

  params.vaidate()
    .then(() => {
      res.json{{
        sampleRate: convertedParams.sampleRate
        filename: convertedParams.filename,
        duration: convertedParams.duration
      }}
    })
    .catch((err) => {
      // handle custom error with type `ValidationError` here
    })

Available converters/validators:

function name	description	example
default	sets default value for param	.default(true)
optional	marks param as not required (won't throw ValidationError message for it)	.optional()
toFloat	checks if param is numeric, converts it to float	.toFloat()
minimum	checks if param is higher than specified value	.minimum(10)
maximum	checks if param is lower than specified value	.maximum(100)
minLength	checks if param string is longer than specified length	.minLength(3)
maxLength	checks if param string is shorter than specified length	.maxLength(20)
nonEmpty	checks if param string is not empty	.nonEmpty()
toUuid	checks if param is valid uuid string	.toUuid()
toLatitude	checks if param is valid latitude (min -90, max 90)	.toLatitude()
toLongitude	checks if param is valid longitude (min -180, max 180)	.toLongitude()
toMoment	checks if param is valid ISO8601 datetime string, converts to moment.js object with specified timezone	.toMoment('America/Los_Angeles')
toMomentUtc	checks if param is valid ISO8601 datetime string, converts to moment.js object with UTC timezone	.toMomentUtc()
toMomentUtc	checks if param is valid ISO8601 datetime string, converts to moment.js object with UTC timezone	.toMomentUtc()
toQuantumTime	checks if param is valid ISO8601 datetime string, converts to moment.js object with abs() seconds	.toQuantumTime()
toDateString	checks if param is valid ISO8601 datetime string, converts to string with format "YYYY-MM-DD"	.toQuantumTime()
toTimeInterval	checks if param is valid interval value (1d, 10secs, etc)	.toTimeInterval()
toAggregateFunction	checks if param is valid aggregate function value (count, sum, avg, min, max)	.toAggregateFunction()
toInt	checks if param is valid integer	.toInt()
toNonNegativeInt	checks if param is valid positive integer	.toNonNegativeInt()
toString	checks if param is valid string	.toString()
toLowerCase	converts string to lowercased	.toLowerCase()
trim	converts string to string without spaced at the beginning and end	.trim()
objToString	converts object to string	.objToString()
toBoolean	checks if param is valid boolean	.toBoolean()
toArray	converts single item into array	.toArray()
toIntArray	converts single item into array, checks if all items are integers	.toIntArray()
toFloatArray	converts single item into array, checks if all items are floats	.toFloatArray()
nonEmptyArrayItem	checks if array is not empty	.nonEmptyArrayItem()
isObject	checks if param is object	.isObject()
isValidTimezone	checks if param is valid timezone valie (America/Los_Angeles)	.isValidTimezone()
isEqualToAny	checks if param is equal to any of specified in the array	.isEqualToAny(['aaa', 'bbb', 'ccc'])
isPassingRegExp	checks if param is passing specified regular expression	.isPassingRegExp(/[a-z0-9]{12}/, 'should consist of 12 lower-cased characters or digits')

Publishing

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