Hi Marco,
1 In a microflow Add a Call REST Service Activity:
URL: Set the URL to https://api.pdfrest.com/jpg.
HTTP Method: Set this to POST.
2. In header Section
add the following headers:
Accept: Set this to application/json.
Api-Key: Set this to your API key as a string.
3.In Request-choose form-data
In that add Key -value
Key: file name.
Value: Set this to a FileDocument variable
Key: output.
Value: Set this as a string with the value test.
Key: resolution
Value: Set this to an integer with the value 300.
Thanks,
Arun
Yes, multipart/form-data is supported out-of-the-box in Mendix.