should I build the json object field by field?
or, if I can pass a single string containing the entire json, what is the syntax, among many options of CURLSMBS class?
can you write a snippet here?
Well, you normally use multi part if you have to upload multiple things.
e.g. a JSON for an API parameter and then attachments like an image to upload.
I was saying at the beginning that my situation is similar to the topic I mentioned.
the body of the request is Json type, but it must be transformed (in that case, I saw, with URLConnection, via a module prepared by @Björn_Eiríksson and then modified by @Tim_Parnell).
I was asking how I could do that with CURLSMBS.
if you confirm that the solution is FormAdd, could you add some details?