ZEST action script

[Blazing Wind]

Hi all

I am writing an authentication script in ZEST. The response to the first request gives me a redirect URL that is URL encoded. I saved the URL in a variable, it looks like this:

https%3A%2F%2Fdomain.com%2Fsubdir%2Fsubdir&param=value

Then I want to make a GET request with the URL, but it seems that when it is encoded, it gives me an error:

java.io.IOException: Request does not contain a request-uri.java.io.IOException: Request does not contain a request-uri.

I was wondering how can I decode it within the ZEST script. I didn't find out how I can do it in ZEST, but I saw that I can add a ZEST action "Action - Script" and from what I understand, load a standalone script which would e.g. decode the URL. Writing a short script in Python to decode the value is pretty easy, but I am not sure how to load this ZEST action. And here I wonder:

1. How do I pass the variable with the encoded URL to the Python script?

2. How to write such a script? 

3. After executing the script which will just URL decode the url, how do I return the value to the ZEST script?

The standalone Python script will at least contain:

`import urllib.parse

#pass the variable 'url' with value https%3A%2F%2Fdomain.com%2Fsubdir%2Fsubdir&param=value&param=value from ZEST script to this standalone script and decode it

decodedUrl = urllib.parse.unquote(url)

#return decodedUrl to the ZEST script 

return decodedUrl`

 Below is how I tried to load it:

The obfuscated value is basically the encoded redirectUrl, loaded using {{}}. 

I can't find any example scripts that use this action or documentation - if you find it please share. 

Thanks!

[Blazing Wind]

I see I didn't add the screenshot. Here it is: