class-validator-extended

class-validator-extended

Additional validators for class-validator.

Safe and simple to use

• 🕵️‍♀️ Thoroughly tested
• 📝 Well documented
• ✨ No additional dependencies (Day.js is supported but optional)
• 😊 Uses Semantic Versioning and keeps a nice Changelog

Installation

Use your favorite package manager to install:

npm install class-validator-extended

For obvious reasons, class-validator needs to be installed.

Usage

Just use the decorators like any of the built-in ones:

import { ArrayMinSize } from 'class-validator'
import { ArrayMonotonic } from 'class-validator-extended'

class Foo {
    @ArrayMinSize(2)
    @ArrayMonotonic()
    values: [1, 13, 42]
}

If you don't have Dayjs installed you need to use the minimal export:

import { MaxBigInt } from 'class-validator-extended/dist/minimal'

Please note that Dayjs is an optional dependency and will by default be installed by npm and yarn. To avoid this use npm install --omit optional or yarn install --ignore-optional, respectively.

Validation decorators

For detailed information please read the API docs.

Decorator	Description	API
Type
@IsBigInt(options?)	Checks if the given value is a BigInt.	🔗
@IsDayjs(options?)	Checks if the given value is a valid Dayjs object.	🔗
@IsDuration(options?)	Checks if the given value is a valid Dayjs duration.	🔗
@IsNull(options?)	Checks if the given value is null.	🔗
@IsMap(options?)	Checks if the given value is a Map.	🔗
@IsSet(options?)	Checks if the given value is a Set.	🔗
Common
@Nullable(options?)	Only validates the given value if it is not null.	🔗
@Optional(options?)	Only validates the given value if it is not undefined.	🔗
Array
@ArrayMonotonic(options?)	Checks if the given value is an array sorted in either (strictly) ascending or (strictly) descending order.	🔗
@ArraySize(size, options?)	Checks if the given value is an array with exactly size elements.	🔗
BigInt
@MaxBigInt(maximum, options?)	Checks if the given value is a BigInt not greater than maximum.	🔗
@MinBigInt(minimum, options?)	Checks if the given value is a BigInt not less than minimum.	🔗
@NegativeBigInt(options?)	Checks if the given value is a BigInt less than zero.	🔗
@PositiveBigInt(options?)	Checks if the given value is a BigInt greater than zero.	🔗
Date
@FutureDate(options?)	Checks if the given value is a Date object in the future.	🔗
@PastDate(options?)	Checks if the given value is a Date object in the past.	🔗
Dayjs
@FutureDayjs(options?)	Checks if the given value is a valid Dayjs object in the future.	🔗
@MaxDayjs(maximum, options?)	Checks if the given value is a valid Dayjs object not later than maximum.	🔗
@MaxDuration(minimum, options?)	Checks if the given value is a valid Dayjs duration not longer than maximum.	🔗
@MinDayjs(minimum, options?)	Checks if the given value is a valid Dayjs object not earlier than minimum.	🔗
@MinDuration(minimum, options?)	Checks if the given value is a valid Dayjs duration not shorter than minimum.	🔗
@PastDayjs(options?)	Checks if the given value is a valid Dayjs object in the past.	🔗
Map
@MapContains(required, options?)	Checks if the given value is a Map and contains all required values.	🔗
@MapContainsKeys(required, options?)	Checks if the given value is a Map and contains all required keys.	🔗
@MapMaxSize(maximum, options?)	Checks if the given value is a Map with no more than maximum entries.	🔗
@MapMinSize(minimum, options?)	Checks if the given value is a Map with no fewer than minimum entries.	🔗
@MapNotContains(forbidden, options?)	Checks if the given value is a Map which does not contain any of the forbidden values.	🔗
@MapNotContainsKeys(forbidden, options?)	Checks if the given value is a Map which does not contain any of the forbidden keys.	🔗
@MapNotEmpty(options?)	Checks if the given value is a Map with at least one entry.	🔗
@MapSize(size, options?)	Checks if the given value is a Map with exactly size entries.	🔗
@MapUnique(projection, options?)	Checks if the given value is a Map without duplicates with regard to the given projection.	🔗
@MapUniqueKeys(projection, options?)	Checks if the given value is a Map whose keys are all unique with regard to the given projection.	🔗
Number
@IsNetworkPort(options?)	Checks if the given value is a valid port number.	🔗
Set
@SetContains(required, options?)	Checks if the given value is a Set and contains all required values.	🔗
@SetMaxSize(maximum, options?)	Checks if the given value is a Set with no more than maximum values.	🔗
@SetMinSize(minimum, options?)	Checks if the given value is a Set with no fewer than minimum values.	🔗
@SetNotContains(forbidden, options?)	Checks if the given value is a Set which does not contain any of the forbidden values.	🔗
@SetSize(size, options?)	Checks if the given value is a Set with exactly size entries.	🔗
@SetNotEmpty(options?)	Checks if the given value is a Set with at least one value.	🔗
@SetUnique(projection, options?)	Checks if the given value is a Set without duplicate values with regard to the given projection.	🔗
String
@IsAwsRegion(options?)	Checks if the given value is an AWS region string.	🔗
@IsAwsARN(options?)	Checks if the given value is an AWS ARN string.	🔗
@NotMatches(pattern, modifiers?, options?)	Checks if the given value is an string that does not match the given regular expression.	🔗

Changelog

[4.0.0] - 2024-02-19

Changed

• class-validator must be at least at version 0.14.1