How to write a file path in Json for this REST_API on Azure Data Factory V2

Question

I am using Azure Data Factory V2 and I wonder whether anyone could help me writing the file path for this REST_API Activity that has a Body parameter that can only be written in JSON.

This REST_API is part of a pipeline that must be triggered by an event. As you can see below the Pipeline parameter "BlobName" requires a file path to be set dynamically. This is a blob file that has to be stored in this container called "source-csv". I am trying to use source-csv\\@{triggerBody().filename} on the "Trigger Run Parameters" but it won't work. Can anyone help please?

Answer 1

The below is the solution:

{"blobname": "source-csv/@{triggerBody().filename}"}

Thanks