How to sent a POST request with form-data and parameters in PL/SQL

Question

I\'m trying to call REST WebService in PL/SQL but it doesn\'t work. I get this error:

Content-type must be multipart/form-data

Answer 1

I don't think you can use a POST with GET query like you do in the URL...

It looks quite difficult to do what you expect. Here is some input from Ask Tom:

The idea is to generate the post text, including a specific "boundary", which will look like this:

POST /path/to/script.php HTTP/1.0
Host: example.com
Content-type: multipart/form-data, boundary=AaB03x
Content-Length: $requestlen

--AaB03x
content-disposition: form-data; name="field1"

$field1
--AaB03x
content-disposition: form-data; name="field2"

$field2
--AaB03x
content-disposition: form-data; name="userfile"; filename="$filename"
Content-Type: $mimetype
Content-Transfer-Encoding: binary

$binarydata
--AaB03x--

There is also same issue developed here with lots of code.

Hope it helps.

Answer 2

I use a similar procedure with POST method at the http request, however I'd set header like:

UTL_HTTP.set_header( v_http_request, 
                     'Content-Type', 
                     'application/x-www-form-urlencoded;charset=utf-8' );

Be aware also that, if the web-service site implements a security certificate, your DBA must create a wallet server-side, and before opening the request you should invoke that wallet:

utl_http.set_wallet('file:<your wallet file route>', '<your pass>');

More on Wallets can be found here