maxSize

Creates a max size validation action.

const Action = v.maxSize<TInput, TRequirement, TMessage>(requirement, message);

Generics

TInput extends SizeInput
TRequirement extends number
TMessage extends ErrorMessage<MaxSizeIssue<TInput, TRequirement>> | undefined

Parameters

requirement TRequirement
message TMessage

Explanation

With maxSize you can validate the size of a map, set or blob. If the input does not match the requirement, you can use message to customize the error message.

Returns

Action MaxSizeAction<TInput, TRequirement, TMessage>

Examples

The following examples show how maxSize can be used.

Blob size schema

Schema to validate a blob with a maximum size of 10 MB.

const BlobSchema = v.pipe(
  v.blob(),
  v.maxSize(10 * 1024 * 1024, 'The blob must not exceed 10 MB.')
);

Set size schema

Schema to validate a set with a maximum of 8 numbers.

const SetSchema = v.pipe(
  v.set(number()),
  v.maxSize(8, 'The set must not exceed 8 numbers.')
);

The following APIs can be combined with maxSize.

Schemas

Methods

pipe