FILTEROBJECT Function

• DOMAIN - extracts the domain value from a URL. See DOMAIN Function.
• SUBDOMAIN - extracts the first group after the protocol identifier and before the domain value. See SUBDOMAIN Function.
• HOST - returns the complete value of the host from an URL. See HOST Function.
• SUFFIX - extracts the suffix of a URL. See SUFFIX Function.
• URLPARAMS - extracts the query parameters and values from a URL. See URLPARAMS Function.
• FILTEROBJECT - filters an Object value to show only the elements for a specified key. See FILTEROBJECT Function.

Source:

Your dataset includes the following values for URLs:

Transform:

When the above data is imported into the application, the column is recognized as a URL. All values are registered as valid, even the IPv4 address. 

To extract the domain and subdomain values:

derive type:single value: DOMAIN(URL) as: 'domain_URL'

derive type:single value: SUBDOMAIN(URL) as:'subdomain_URL'

derive type:single value: HOST(URL) as:host_URL'

derive type:single value: SUFFIX(URL) as:'suffix_URL'

You can use the Alteryx® pattern in the following transform to extract protocol identifiers, if present, into a new column: 

extract col:URL on:`{start}%*://`

To clean this up, you might want to rename the column to protocol_URL.

To extract the path values, you can use the following regular expression:

extract col: URL on: /[^*:\/\/]\/.*$/

The above transform grabs a little too much of the URL. If you rename the column to path_URL, you can use the following regular expression to clean it up:

extract col:path_URL on:/[!^\/].*$/

Drop the path_URL column and rename the path_URL1 column to the dropped one. Then:

derive type:single value: URLPARAMS(URL) as: 'urlParams'

If you wanted to just see the values for the q1 parameter, you could add the following:

derive type:single value: FILTEROBJECT(urlParams,'q1') as: 'urlParam_q1'

Results:

Column set 1:

Column set 2: