Tutorial - Transform a website string into a domain
In this tutorial, you'll learn how to extract a domain name from a full website URL using Cargo. This skill is essential for streamlining workflows across various Cargo applications.
Before you begin
Make sure you have set up a sample data object that includes a website URL. This object will serve as the starting point for the expression you'll create in this tutorial.
Identify the Website URL in the Start Node
The website URL is located within the Start node object. Use the following expression to capture it:
Capture the website URL with an expression
{{ nodes.start.website }}
Remove the protocol
By this point, the expression will return the full website URL, such as https://getcargo.io/blog.
The goal, henceforth, is to isolate the domain name, removing both the protocol (https://) and any path
beyond the domain name (e.g. /blog).
Remove protocol from the url with the split method
{{ nodes.start.website.split("//")[1] }}
Apply the split method to search for the // symbol, dividing the string into two parts. By selecting the
second part with [1], we keep only the portion after the //.
Remove the path
To isolate the domain name by keeping just the first part, use the split method again, this time targeting
the / symbol that follows the domain name.
Final expression
{{ nodes.start.website.split("//")[1].split("/")[0] }}
Add this second split method to the end of the expression constructed in the previous step.
Execute the node and review the output
Click the run button located in the right panel to process the expression.
If there's a syntax error, a red banner will display at the top of the left panel, similar to the following message: "nodes?.start?.website?.split(…) is not a function".
After running the expression, check the OUT tab for the result.
Finish line
By this point, you have processed the string to return a clean domain name.