Similar to Email, an URL can also be passed as a string. The URL format is derived from the HTML 5.1-Forms Email syntax recommended by W3C.

URL format follows the syntax specified in the HTML 5.1 W3C recommendation under section

The code snippet shows how to define an url In the Internet Object Document.

# Defining an url
website: url

In the case of the url format, the data must be valid URL.

# valid and Invaliid url
website: url

https://example.com # the input will be accepted by the IO parser

Example.com # input will not be accepted as it is not a valid url 


The Email is derived from the String type, hence it shares the same MemberDef as the String. However, URL enforces additional constraints with the respective url format.


The choices can be added to member variables in the url so that it is restricted to the fixed set of available choices. Choices must be an array of valid url. The code snippet here shows how to add choices for the url.

# Set the choices for companyWeburl
companyWeburl: {
  type: url, 
    choices: [https://example1.com, 
     https://example2.com, https://example3.com]           


User may specify pattern for the url by defining pattern as,

# Set pattern for the referenceUrl
referenceUrl: {
  type: url, 
   pattern: 'https?://(?:[-\w.]|(?:%[\da-fA-F]{2}))+'
http://example.com, http://example2.com

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