.cuid2()

Passes when the string is a lowercase letter followed by lowercase letters and digits. That is the whole CUID2 grammar, so any lowercase word passes. Add .length() if you generate CUID2s of a fixed length.

Signature

StringValidator<O> cuid2({String? message, MessageBuilder? messageBuilder})

Parameters

Parameter	Type	Meaning
message	String?	Replaces the default error message.
messageBuilder	MessageBuilder?	Builds the message from the issue. message wins when both are given. See Message builders.

Issue

Code invalidCuid2. Default message: value must be a valid cuid2. value is replaced by the field name when there is one.

Code generation

@IsCuid2(), or the constant @isCuid2. Put the annotation on the constructor parameter or the field.

Example

Hand-written

final id = l.string().cuid2();

Generated

@IsCuid2() required String id, // l.string().cuid2().required()

id.validate(input)+2-1

1. +valid: 'tz4a98xxat96iws9zmbrgj3a'
2. +valid: 'a'
3. -invalid: '123'value must be a valid cuid2