Provider Push/Consumer Pull example with modified data source/data sink

[RebeccaZirbs]

Hello, I would like to connect two interfaces defined by me using the available transfer examples. For this purpose, I have included my data source as an asset in the prerequisites. I have included my API, which should receive the sent data, as the base URL in the JSON file of the Provider Push example. This API expects exactly the JSON data that can be found at the URL included as an asset. When I attempt the Consumer Pull operation, I also receive my desired asset's data in the GET request. However, during the POST request for the Provider Push operation, the data transfer fails with the error message 422 Unprocessable Entity.

The following server message appears in the terminal in VSCode:
SEVERE 2024-03-20T14:05:10.3678253 Error {422: Unprocessable Entity} received writing HTTP data Test asset to endpoint http://localhost:8000/workflows/mes_event_data for request: Request{method=POST, url=http://localhost:8000/workflows/mes_event_data}

The operation ends with the status "Terminated”. Does anyone here have an idea why the Provider EDC cannot complete the final data transfer to the base URL?