Creates a pipeline validation action that validates the size of a map, set or blob.

const Validation = minSize<TInput, TRequirement>(requirement, message);


  • TInput extends Map<any, any> | Set<any> | Blob
  • TRequirement extends number



With minSize 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.



The following examples show how minSize can be used.

Blob size schema

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

const BlobSchema = blob([
  minSize(10 * 1024 * 1024, 'The blob must be at least 10 MB.'),

Set size schema

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

const SetSchema = set(number(), [
  minSize(8, 'The set must contain at least 8 numbers.'),

The following APIs can be combined with minSize.



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