Multiple Min and Max

You can specify min and max as objects to apply different constraints based on the data type. This is particularly useful when a field can have multiple types.

Example

Request Body

{
  "user": {
    "profile": {
      "name": "John Doe",
      "age": 30
    }
  }
}

Validation Rules

const rules = [
  {
    key: "user.profile.age",
    type: ["string", "number"],
    required: true,
    min: { string: 3, number: 10 },
    max: { string: 15, number: 100 }
  }
];

• key: "user.profile.age" specifies the field in the request body to be validated.

• type: ["string", "number"] allows the value to be either a string or a number. The validation will succeed if the value matches either type.

• required: true indicates that the user.profile.age property must be present in the request body.

• min: { string: 3, number: 10 } specifies different minimum constraints based on the type of the value.

• For string type values, the minimum length should be 3 characters.

• For number type values, the minimum value should be 10. max: { string: 15, number: 100 } specifies different maximum constraints based on the type of the value.

• For string type values, the maximum length should be 15 characters.

• For number type values, the maximum value should be 100.