II. Validation

Most types of properties require some form rendering on the interface. Images, videos or input fields are all examples of properties that require some form of specific display that is not just a simple text field. To make sure such properties are properly displayed we are using the files from validation directory.

Supported validations

Name	Description
required	Enforce a field as obligatory; otherwise, display an error message.
minLength	Enforce a minimum character length constraint on a field; otherwise, display an error message.
maxLength	Enforce a maximum character length constraint on a field; otherwise, display an error message.
min	Enforce a minimum value constraint on a field; otherwise, display an error message.
max	Enforce a maximum value constraint on a field; otherwise, display an error message.
email	Validate the field to ensure it contains a properly formatted email address; otherwise, display an error message.
regex	Apply a regular expression pattern to the field for validation; otherwise, display an error message.
date	Validate the field for proper date formatting; otherwise, display an error message.
range	Ensure the field value falls within a specified range; otherwise, display an error message.
content-type	Validating files based on their mime type.

Example

Except for rendering, validations play an important role in making sure the input is correct. For example, if you want to make sure the user enters a number or the property is required, you can set up a validation that checks if this conditions were met.

{
  "$type": "validation",
  "$author": "Andrei",
  "validations": {
    "name": {
      "required": true
    },
    "x": {
      "required": true,
      "regex": "[a-zA-Z0-9]"
    },
    "y": {
      "required": true,
      "regex": "[a-zA-Z0-9]"
    },
    ....
  }
}