Questions:

1. I see POST, PUT, MERGE, PATCH under http operations for the JSON Reader.  I'm not sure how I do a GET or DELETE.  I'm trying to test an Integration to a TMS provider that has a published REST API in Swagger Hub.  
2. I'm assuming the URL property in the JSON Reader is the bit added to the Webservice URL setup in the Web Service behavior (WSB) so we can pass URL parameters to the endpoint.  In the WSB setup I might have https://testtms.home.com/ship/v1/shipments, then in the URL on the reader I would pass "?createdGTE={Date}" where {Date} is the variable passed into the JSON Reader.
3. I'm confused if the &offset=0&limit=20 will automatically add to the URL if setup in the WSB.  Are these standard URL parameters to all Rest services that handle paging?

what I'm looking to create is:

https://testtms.home.com/ship/v1/shipments?createdGTE=2020-11-03T15%3A15%3A21.429Z&offset=0&limit=20

understanding that Iman will need to handle the paging in order to get all data matching the filter criteria, if more than 20 records exists as in my example.

Let me know if my questions make sense.