How to make sure that the Configure Call Integration Pulls API Data?

I pulled the data from Big Query's data source using the HTTP Get Method

it works

I was able to translate the data to Appian's format


Data is displaying

Now with the Expression editor, would this be the Data side of things, Will I be able to set the variables for the data in there and make it in such a way that every time bigQuery data updates a sepcic data it will update into Appian.

Can I do the same thing with pushing the data too, have the POST Method set up with a process Modeler to push data that has been updated in Appian to BigQuery?