POST method not working

I am developing an android app which accesses my Oracle database in the cloud through RESTful services , Oracle APEX provided the interface for creating REST services , On the client side i am able to invoke a GET request through JAVA HttpClient API and the response is Just fine in JSON format.. the problem is when a invoke a POST request i am not getting the appropriate response.i did everything as instructed by the documentation, (also defined the outbound parameters) Please have a look at this pic ad tell if i am doing anything wrong

The code on the client side is like this:

HttpPost post = new HttpPost(url);
JSONObject json = new JSONObject();
json.put("MNUM", "234564");
StringEntity se = new StringEntity( json.toString());
HttpResponse response = httpClient.execute(post);
HttpEntity entity = response.getEntity();
text = getASCIIContentFromEntity(entity); // this function converts response to string

the PL/SQL in the source is:

id USER_INFO.m_number%type; //user_info is a table and m_number is its primary key (which i am trying to post from my app)
INSERT into USER_INFO(m_number)
returning m_number into id;
:status := 201;
:location := id;

can anybody tell me why i am unable to POST after all this , any help will be much appreciated , i am stuck at this part from days. The Error i receive is Service not available.


Use the Postman app (chrome webstore) to test your API calls and see if they're valid. If that doesn't help you resolve the issue paste the input and output.

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