Validations

import { Validation } from 'Blini'

A Validation allows you to define a transformation or rejection that will be applied to data before flushing to the database.

Validations are simple function accepting a value in input and returning a new value or throwing an error. Validations can be async by returning a promise.

• General validations

  • required

  • default

• String validations

  • minLength

  • maxLength

  • regExp

  • oneOf

• Iterable validations

  • limitAt

General validations

required

Validation.required(message: String)

Enforce that the field is set, throw an error with message otherwise.

default

Validation.default(value: Mixed)

Defaults the value of the field if non existant. It doesn't reject the valuation, only transform the data set.

String Validations

minLength

Validation.minLength(min: Number, message: String)

Enforce that the string value is at least min characters long.

maxLength

Validation.maxLength(max: Number, message: String)

Enforce that the string value is less than max characters long.

regExp

Validation.regExp(re: RegExp, message: String)

Enforce that the string value match a RegExp (re).

oneOf

Validation.oneOf(constants: Array, message: String)

Enforce that the value is one of the constants.

Iterable Validations

limitAt

Validation.limitAt(max: Number)

Enforce that iterable doesn't have more than max element, it does not throw error, but normalize the value.