in the response presented by bubble to Workflow actions, the JSON elements may be limited to TOP-LEVEL … And if summary is a child, then you may have to use whatever bubble idiom is allowing to step down the elements in JSON to what you want.
calls.$metadata.httpStatusCode is need path in JSON path idiom to reference the status in json struct belo
above , if you want filename in bubble WF you have to have expression like
calls :last items fileNam
Note JSON types are important in the resultant syntax
calls is Json.Array
children of calls ref’d by their index value in the array , thus the “last-item”
and then you can actually reference the specific element that u need