Hi i need to create a HTTP request (multi-part/form-data) with a header and a payload.
The payload is in json format and needs to be send as a json, no base64 coding and i cannot get it to work in the way it is expected by the API i'm sending the request.
In the header is expected:
"payloadMapping": [
{
"filename": payload.json,
"payloadType": "application/json"
}
]
any suggestions how i can do this?