Problem sending JSON to a REST api

AitorEG
AitorEG Member Posts: 342
in NAV Three Tier
Hi everyone,

I'm finding an issue sending a json to an API.

The sending function is this: 
SendJSONtoAPI(VAR pJson : Text) : Text
IF ISCLEAR(XMLHTTP) THEN
  CREATE(XMLHTTP,FALSE,TRUE);
XMLHTTP.open('POST', 'http://eshop.XXX-eu.com/ws/api/rest');
XMLHTTP.setRequestHeader('Content-Type: ', 'multipart/form-data');
XMLHTTP.setRequestHeader('Host','eshop.XXX-eu.com');
XMLHTTP.send(pJson);

In fidler, as far as I know, seems to be a correct call:

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But the adminsitrator of the service, is telling me that he is receiving an empty cal...

So I tried to use postman as he has recommend me, like this:

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And it works correctly. I think that may be I'm asending incorrectly the content of the JSON. In postmna, the content is assigned to a variable called "json". Could be that the problem? How can I reproduce that in the NAV call?

Thaank you very much

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