Get a JSON string out of Bubble

I need help. Can someone help me get a json string out of bubble? We are hitting brick walls trying to get data for a list of things that has fields that reference other data types. Our bet is that we need to write the script out via javascript, but we wanted to ask here. Any help is much appreciated!

Could you be a little more specific? Bubble has a lot of native expressions to search filter and manipulate data.