API as a Reader?

I am perplexed.

I have a data source that is a URL/API (http://localhost/ServicePackave/api/rmamaster/getrmadetailinfo). Works great in Chrome and you can see the attached screenshot.

Using Advanced ETL, I tried creating an HTTP download package. I found the text file that it created pretty unusable. It did not save as an XML file as I expected.

I also tried using Soap. I keep getting an error...HTTP 405.


I am not sure which is the best approach to tackle this one.

Thoughts?

API usually have documentation describing how to use it.
Telling which method to use, POST, GET, Parameters and so on