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POAuthentication Error when using HttpPost with DefaultHttpClient on Android
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  1. POAuthentication Error when using HttpPost with DefaultHttpClient on Android
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    copied!<p>I'm running into a strange problem using HttpClient. I am using a DefaultHttpClient() with HttpPost. I was using HttpGet with 100% success but now trying to switch to HttpPost as the REST API I'm using wants POST parameters rather than GET. (Only for some API calls though so I know that the GET calls were working fine so it's not a fault of the API).</p> <p>Also, I tried using HttpPost on a simple php script I wrote that looks for a POST parameter 'var' and echoes it to screen, passing this parameters as follows worked fine:</p> <pre><code>List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(); postMethod = new HttpPost("http://www.examplewebsite.com"); nameValuePairs.add(new BasicNameValuePair("var", "lol")); try { postMethod.setEntity(new UrlEncodedFormEntity(nameValuePairs)); response = httpClient.execute(postMethod, responseHandler); Log.i("RESTMethod", response); ... </code></pre> <p>The problem is that when I tried and do the same call to the API (but with the params changed to the API params obviously) I get the following error:</p> <pre><code>Authentication error: Unable to respond to any of these challenges: {} </code></pre> <p>The page I am requesting is an HTTPS page, could this be the problem?</p> <p>But doing the same type of POST request to a raw HTTP page on the API gives the same error, unless I comment out the StringEntity part and then it runs (but returns xml and I want to pass a parameter to request the data in JSON).</p> <p>This seems like a really strange problem (the non-https part) but couldn't really find any help on this problem so sorry if the answer is out there.</p> <p>Any ideas?</p> <p>Thanks in advance,</p> <p>Infinitifzz</p> <p>EDIT: Okay I'm getting nowhere so I thought if I directed you to the API it might shed some light, it's the <a href="http://8tracks.com/developers/api">8Tracks API</a> and as you can see you need to pass a dev key (api_key) for all requests and I the part I'm stuck on is using https to log a user in with: <a href="http://www.8tracks.com/sessions.xml">http://www.8tracks.com/sessions.xml</a>" part.</p> <p>Hope this helps somehow because I am at a dead end.</p> <p>Thanks,</p> <p>Infinitifizz</p>
 

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