Geneos - How to extract JSON with Extractor and Rest-Extractor

When a Geneos user wants to get JSON format into Geneos, I suggest using Rest-Extractor plugin. Some user prefer to read JSON from a file, rather than accessing the JSON through http/https. In here, I have created examples by using both plugins, so that you can compare and and get a feel of the different. 

I put the JSON file in /var/www/html, and started httpd in the Linux server. 

[
{"MON":{"Host":"hkserver101.net","AlertID":"HK0101","Cmp":"instrument","Lvl":"I","Data":{"Usd":8088,"Max":85000,"Pct":12.231213,"Lmt":50.0},"Timestamp":"20201113.110008.333880"}},
{"MON":{"Host":"hkserver201.net","AlertID":"HK2020","Cmp":"price_1","Lvl":"I","Data":{"Usd":123,"Max":30000,"Pct":59.2123,"Lmt":50.0},"Timestamp":"20201113.120008.323072"}}
]

My output from both plugins are identical:

Extractor plugin:

Rest-Extractor plugin:

Using Extractor, you need to know how to use xpath. Geneos convert JSON to xml in extractor plugin, if you want to know about the path, you can do this:

​
And you will get this:

Rest-Extractor provides a simpler approach, by using JQ query:

I have enclosed the xml for both sampler in this FAQ. Feel free to try out!