Create Record in Module using RESTful JSON API

I cannot find out information from documentation so drop message here.

Q1) I have already created a new namespace and module and successfully imported data into the module. Then I want to try using COMPOSE RESTful JSON api to retrieve this list record using curl with GET method against URL http(s):///compose/namespace//module//record/

But it complains with Javascript not enabled.

does /compose endpoint serve API request?

Q2) Then I tried to create a new endpoint with GET method and linked with a new workflow using only Worflow Processor in Processing tab. I can use curl successfully trigger the endpoint but I didn’t see any JSON resposne. In this workflow, I defined Compose onManual trigger, Expression Step, and a Terminator. How can I return Expression to API client with JSON format?