There are a couple of standard ways, IIRC, to encode post parameters, but
neither of them is JSON in the body.  Of course you can do as you want, and
android apparently does, but other software is unlikely to recognize it.

Again, from memory, the two methods are using url encoding, and multi-part
form data.  The latter is particularly useful for large binary blobs (like
uploading files), but it looks as though the first method would work for
you.  You'll have to dig down into the android API to see how to do it
there, but it probably involves a particular value in the content-type
header.

Bill

On Sat, Mar 23, 2013 at 9:52 AM, Pratik Mandrekar <[email protected]
> wrote:

> Thanks for the pdb tip Bill!
>
> I tried pdb at the point where the request enters Tastypie (based on
> http://stackoverflow.com/questions/13006901/tastypie-obj-create-method-not-being-called).
> What I see is that the request.POST and request.raw_post_data are both
> empty. I posted from Android client to a posttestserver and I can see that
> all the headers I set and the request body are set.
>
> However it does say that there are no POST parameters. Here is the logged
> request - http://posttestserver.com/data/2013/03/23/06.42.591241431084.
> Any idea what that means? Note that I had to remove the authorization
> header to post to this server.
>
> Also I'm not sure now where else to start the trace from. Is there another
> place I can pdb trace my HTTP request when it enters the app? Is it
> possible some data gets stripped off the original request somewhere?
>
> Thanks.
>
> Pratik
>
>
>
>
>
>
> On Saturday, March 23, 2013 5:50:28 PM UTC+5:30, ke1g wrote:
>
>> Still, if you have a break point where the request comes in to the view,
>> you can inspect the POST data to see how it differs from what you expect.
>> That might inform you as to what you might do differently in your
>> JavaScript, whether you need some additional or different encoding or
>> quoting of the data, whether you need to be more explicit about the
>> content-type header (you may have to look at the WSGI request object
>> itself), etc.  Or you may discover that you need to breakpoint at the WSGI
>> application script level to see what you need to see.
>>
>> Since nobody has jumped in with "I recognize that problem", inspecting
>> your data is probably a good use of your time.  pdb is not hard to use, as
>> long as you are using runserver (and you can almost always arrange to
>> explore a problem under runserver) because there has to be a console for
>> pdb to type on, and on which you can type commands.  The first breakpoint
>> is the only django specific trick.  Put
>>
>>     import pdb; pdb.set_trace()
>>
>> where you want to stop.  You can use the b command to set additional
>> breakpoints later, but that can be confusing due to threading.  pdb is
>> documented in the library reference for your python version at python.org.
>> Read up on the p, pp, u, d, c, n, s, r, !, and q, commands, probably in
>> that order, and you will find that you usually only use the first 5 of
>> them.  (There are more, for when you want to be a pdb expert.)  And
>> remember to start with a p or pp when you want to see the value of an
>> expression, lest your expression be interpreted as one of the other
>> commands.
>>
>> Bill
>>
>> On Sat, Mar 23, 2013 at 5:19 AM, Pratik Mandrekar 
>> <[email protected]>wrote:
>>
>>> The issue is with setting data in the http post request. I have tried it
>>> with curl and the web client and it works. CSRF is not the issue, requests
>>> work fine without the csrftoken outside of the android client.
>>>
>>> Pratik
>>>
>>>
>>>
>>> On Saturday, March 23, 2013 12:01:21 AM UTC+5:30, ke1g wrote:
>>>
>>>> Have you tried a breakpoint in the view?  Might it be a CSRF problem?
>>>>
>>>> On Fri, Mar 22, 2013 at 2:22 PM, Pratik Mandrekar <[email protected]
>>>> > wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I'm unable to get the POST json to tastypie from an android http
>>>>> client to work.
>>>>>
>>>>> *I have tried with HttpURLConnection*
>>>>>
>>>>> urlConnection = (HttpURLConnection) url.openConnection();
>>>>>
>>>>>
>>>>> urlConnection.setDoInput(true)******;
>>>>>
>>>>>  urlConnection.setDoOutput(**true****);
>>>>>
>>>>>  urlConnection.**setRequestProper****ty("Content-**Type",
>>>>> "application/json");
>>>>>
>>>>> byte [] encoded = 
>>>>> Base64.encode((username+":"+**pa****ssword).getBytes("UTF-8"),
>>>>> Base64.DEFAULT);
>>>>>
>>>>>  urlConnection.**setRequestProper****ty("**Authorization", "Basic "+
>>>>> new String(encoded, "UTF-8"));
>>>>>
>>>>>
>>>>> JSONObject jsonObject = new JSONObject();
>>>>>
>>>>> jsonObject.put("key1", "value1");
>>>>>
>>>>> jsonObject.put("key2", "value2");
>>>>>
>>>>>   outputStreamWriter = urlConnection.getOutputStream(******);
>>>>>
>>>>>  outputStreamWriter.write(**jsonO****bject.toString().**getBytes());
>>>>>
>>>>>  outputStreamWriter.flush();
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> *And I have tried with Apache HttpClient*
>>>>>
>>>>> HttpClient client=new DefaultHttpClient();
>>>>>
>>>>> HttpPost post = new HttpPost(url);
>>>>>
>>>>>
>>>>>
>>>>> post.setHeader("accept", "application/json");
>>>>>
>>>>> post.addHeader("Content-Type", "application/json");
>>>>>
>>>>> post.addHeader("Authorization"******, "Basic "+ new String(encoded,
>>>>> "UTF-8"));
>>>>>
>>>>>
>>>>>
>>>>> ArrayList localArrayList = new ArrayList();
>>>>>
>>>>> localArrayList.add(new BasicNameValuePair("json",**json****
>>>>> Object.toString()));
>>>>>
>>>>>
>>>>>
>>>>>  lotlisting.setEntity(new UrlEncodedFormEntity(**localArra****yList));
>>>>>
>>>>>   String str = EntityUtils.toString(**localDefa****ultHttpClient.**
>>>>> execute(**lotlisti**ng).getEntity(**));
>>>>>
>>>>>
>>>>> StringEntity se = new StringEntity( jsonObject.toString());
>>>>>
>>>>> se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE,
>>>>> "application/json"));
>>>>>
>>>>>
>>>>>
>>>>>  post.setEntity(se);
>>>>>
>>>>>
>>>>>
>>>>>  HttpResponse response = client.execute(post);
>>>>>
>>>>>
>>>>> I hit the same issue with both of them i.e the POST data as seen as
>>>>> Querydict in Django, does not have any data. This makes it an invalid json
>>>>> and it throws a JSON could not be decoded error.
>>>>>
>>>>> I have tried playing with all the parameters with little luck. Note
>>>>> that *get works perfectly*, even with parameters.
>>>>>
>>>>> Has anyone been successfully able to post json from an android client
>>>>> to django/tastypie? If yes, could you please share what worked for you?
>>>>>
>>>>> Thanks.
>>>>>
>>>>> Pratik
>>>>>
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