Develop Reference

401 unauthorized error for GET request with type Authorization = bearer token

I am making an HttpGet request with "Authorization" as header attaching bearer token. I am getting a 401 unauthorized error all the time.
I have tried retrofit, it didn't work so I reverted back to basic HTTP client. Then after a lot of research found that there is some error with DefaultHttp. So I changed to HTTPUrlConnection. Even after doing all these, I am still getting an unauthorized 401 error. What could I possibly do wrong here? Because this error still persists, I decided to stick to HTTPUrlConnection or DefaultHTTP and stay away from libraries.
Here is my code with HttpUrlConnection
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection)
obj.openConnection();
con.setRequestMethod("GET");
String authString = "Bearer" + accessToken;
con.setRequestProperty("Authorization", authString);
int responseCode = con.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) { // success
BufferedReader in = new BufferedReader(new InputStreamReader(
con.getInputStream()));
String inputLine;
response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
} else {
System.out.println("GET request not worked");
}
Here is my DefaultHttp request
StringBuilder builder = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGetRequest = new HttpGet(url);
httpGetRequest.addHeader("Authorization","Bearer"+accessToken);
try {
HttpResponse response = client.execute(httpGetRequest);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new
InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
}

add a whitespace after Bearer cus as it stands your concatenating Bearer with the token as one string

Please use Fast Android Networking library its very easy to use and you can implement your logic in less than 5 mins. So please give it a try atleast. Below is the link to library:
https://github.com/amitshekhariitbhu/Fast-Android-Networking

The problem was resolved. I tried using retrofit and defaultHttpClient but both didn't worked for me because of some cookie issue. But using OKHttpClient it was straight forward and I was able to hit the server and get the response.
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(mURL)
.addHeader("Authorization", String.format("Bearer %s", bearerToken))
.build();
Response response = client.newCall(request).execute();
return response.body().string();

Android send POST request in Java to ASP.net Web API

When I used HttpUrlConnection to send POST request from Android to ASP.net Web API. It seems not working.
String baseUrl = "http://<IP Address>/Save/Document";
URL url = new URL(baseUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
DataOutputStream os = new DataOutputStream(conn.getOutputStream());
JSONObject ap = new JSONObject();
// Where data is a JSON string
// Like [{Test: 1}, {Test: 2}]
ap.put("",new Gson().toJson(data));
OutputStreamWriter ap_osw= new OutputStreamWriter(conn.getOutputStream());
ap_osw.write(ap.toString());
ap_osw.flush();
ap_osw.close();
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
StringBuilder response = new StringBuilder();
while ((output = br.readLine()) != null) {
response.append(output);
response.append('\r');
}
String mes = response.toString();
Log.i("INFO", mes);
conn.disconnect();
When executing the above code, it will have an FileNotFoundException in
conn.getInputStream()
I also tried to implement source code in HttpClient style.
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(baseUrl);
try {
StringEntity se = new StringEntity((new Gson()).toJson(data));
httpPost.setEntity(se);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-Type", "application/json");
HttpResponse response = httpClient.execute(httpPost);
InputStream inputStream = response.getEntity().getContent();
String result = "";
if (inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
Log.i("RESPONSE", result);
} catch (Exception ex) {
Log.i("Exception", ex.getMessage());
}
return output;
And this time, it shows "The requested resource does not support http method 'get'".
I have no ideas how to implement the POST request method to send data from Android to ASP.net Web API. Any recommendations?
Finally, the following coding is my ASP.net Web API for reference.
[HttpPost]
[Route("Save/Document")]
public HttpResponseMessage Post([FromBody]string model)
{
var resp = new HttpResponseMessage(HttpStatusCode.OK);
resp.Content = new StringContent(model, System.Text.Encoding.UTF8, "text/plain");
return resp;
}

Finally, I got a solution to fix this problem. It is due to the POST data in request body can not be read from Web API.
When the request Content-Type is "application/json",
Using string, The request body should be a plain text (e.g. "Text Message").
[FromBody] string inStr
Using self-defined class, The request body should be a json string
(e.g { KEY: VALUE })
[FromBody] YourClass inObj
Using array of self-defined class, The request body should be a json array string (e.g [{ KEY: VALUE }])
[FromBody] YourClass[] inObj
And the self-defined class should be like as following:-
class YourClass {
public string KEY { get; set; }
}
Btw. Thanks for all reply and useful information.

Android CouchDB {"error":"bad_request","reason":"invalid_json"}

While trying to Create a new Document in my IrisCouch Database, i am always getting following error:
{"error":"bad_request","reason":"invalid_json"}
This is the relevant part of my function:
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("https://username.iriscouch.com:6984/mydb");
StringEntity entity = new StringEntity(body);
httpPost.setEntity(entity);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
HttpResponse httpResponse = httpClient.execute(httpPost);
System.out.println(httpResponse.toString()) ;
HttpEntity httpEntity = httpResponse.getEntity();
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(httpEntity.getContent()));
String line = "";
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
System.out.println("body: " + body);
} catch (Exception e) {
e.printStackTrace();
}
Here is my System.out of "body":
{"bild1":"","bild2":"","bild3":"","bild4":"","bild5":"","bild6":"","bild7":"","bild8":"","bild9":"","bild10":"","name":"","plz":0,"ort":"","strasse":"","n_koordinate":0,"e_koordinate":0,"beschreibung":"","groesse":"< 50m²","sitzplaetze":"< 50","grillstellen":"1","reservierung":false,"res_name":"","res_tele":"","res_weiteres":"","wc":true,"behindi":false,"dach":true,"kinderfreundl":false,"auto":false,"kinderwagen":false,"einkauf":false,"datum":"2015-07-01-14:12:01:856","bewertung":0,"anz_bewertung":0}
The JSON is valid. Tested it with jsonlint.com JSON Validator.
What could i do? Thanks in advance!

Perhaps the unicode superscript 2 (²) is bothering it?
Not sure which library this HttpPost is, but seems a lot like the HttpWebRequest, so try setting your header this way:
httpPost.setHeader("Content-type", "application/json charset=utf-8");
It could also be that the HttpPost class doesn't properly encode strings.
(I haven't pasted this in my Visual studio, so just a shot in the dark)

Android HttpClient response

I'm trying to send json data to a php script from my Android application with HttpClient, and get the response.
Android Code
private void sendPurchase(String SKU) throws IOException{
Log.e("sendPurchase","Inside sendPurchase");
final SharedPreferences prefs = getGCMPreferences(getApplicationContext());
int pur_user = prefs.getInt("C_user", Integer.MIN_VALUE);
InputStream inputStream = null;
String result = "";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("http://www.*.com/includes/purchase.php");
JSONObject json = new JSONObject();
try {
json.put("PUR_sku", SKU);
json.put("PUR_user", pur_user);
} catch (JSONException e) { Log.e("SendPurchase","Problem with Json Object"); }
Log.i("JSONObject", json.toString());
StringEntity se = new StringEntity(json.toString(), HTTP.UTF_8);
httpPost.setEntity(se);
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
HttpResponse httpResponse = httpclient.execute(httpPost);
inputStream = httpResponse.getEntity().getContent();
if(inputStream != null){ result = convertInputStreamToString(inputStream); }
else{result = "Did not work!"; }
Log.e("RESULT",result);
}
private static String convertInputStreamToString(InputStream inputStream) throws IOException{
BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
String line = "";
String result = "";
while((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
return result;
}
And the PHP script
<?
$auth=0;
require('./connexion.php');
$data = file_get_contents('php://input');
//$data = '{"PUR_sku":"singleone","PUR_user":"3"}';
$json = json_decode($data,true);
/* Some database stuff ... */
echo "Retour ".print_r($json)." et ".$json['PUR_sku']." et ".$json['PUR_user'];
?>
When i launch the app and execute sendPurchase function, it seems to be ok until the execution of the HttpPost. In the logcat i get all the logs with correct params, except the last log "RESULT" that does not appear.
That's why i guess something is going wrong with the HttpPost execution, but actually i don't know if the problem comes from the application side or the php script side...
When i execute the php script alone in a web browser, replacing first $data line by the second one, everything is ok. But when it comes from the application it's not ok...
The Json Object sent (i hope) to the script seems ok too : {"PUR_user":3,"PUR_sku":"singleone"}
(the sendPurchase function is executed in Background).
Any idea about what i'm doing wrong ? Thanks !
/EDIT/
Here is the logcat for #RyuZz solution.
My code is about purchasing an item, consume it and send new value to my database on a web server. The purchase & consume are ok, but i can't send the values to the web server.
And again, when i execute the php script alone in a web browser, replacing first $data line by the second one, everything is ok.
Note that i have another similar code to register user to GCM, using HttpClient, and that code works fine.
06-25 14:07:12.968: D/IabHelper(21833): Successfully consumed sku: singleconf
06-25 14:07:12.968: D/IabHelper(21833): Ending async operation: consume
06-25 14:07:12.979: D/CONSUME(21833): Consumption finished. Purchase: PurchaseInfo(type:inapp):{"orderId":"12999763169054705758.1353445524837889","packageName":"com.*.*","productId":"singleconf","purchaseTime":1435234296875,"purchaseState":0,"purchaseToken":"bohbcbiigcbidfficbikebnk.AO-J1OzuQ_SsNTG1h9MtUvbaPc3PeN9nBHG-qBOE82ao1rTDFNrgA7tYQcMdECxCVFrrZEn_QifQ28OcIupyesZI-5cjDILFODYpBEaeqMfE0wCAeMFkJLfNUK_TsKPMj7F2sBDdgOYx"}, result: IabResult: Successful consume of sku singleconf (response: 0:OK)
06-25 14:07:12.979: D/CONSUME(21833): You bought & consumed a single conf
06-25 14:07:12.979: D/CONSUME(21833): End consumption flow.
06-25 14:07:12.979: E/Purchase Background(21833): Inside doInBackground
06-25 14:07:12.979: E/sendPurchase(21833): Failed to send HTTP POST request due to: java.lang.NullPointerException

You can try the following instead of HttpClient which is anyway deprecated:
try{
int pur_user = prefs.getInt("C_user", Integer.MIN_VALUE);
URL url = new URL("http://www.*.com/includes/purchase.php");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("Accept", "application/json");
connection.setRequestMethod("POST");
JSONObject jsonObject = new JSONObject();
jsonObject.put("PUR_sku", SKU);
jsonObject.put("PUR_user", pur_user);
//convert JSONObject to JSON to String
json = jsonObject.toString();
OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
writer.write(json);
writer.close();
responseCode = connection.getResponseCode();
if(responseCode == 200) {
InputStream content = connection.getInputStream();
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(content, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line;
while ((line = reader.readLine()) != null)
{
sb.append(line).append("\n");
}
result = sb.toString();
//TODO get your stuff from result
content.close();
} catch (Exception ex) {
Log.e(TAG, "Failed to parse JSON due to: " + ex);
} finally {
connection.disconnect();
}
} else {
Log.e(TAG, "Server responded with status code: " + responseCode);
}
} catch(Exception ex) {
Log.e(TAG, "Failed to send HTTP POST request due to: " + ex);
}
if this isn't working, please post the logcat.
Don't forget to implement the required permissions in your manifest:
<uses-permission
android:name="android.permission.INTERNET" />

Passing cookie with an HTTT GET

I am trying to get a list of user subreddits via the reddit api. Currently I am able to do a post for login which returns a cookie and modhash. Those are the parameters I'm passing to my method below. However each time I call the function I get an empty response:
"{}"
How can I pass a cookie and modhash via HTTPGET to get a valid response?
public void getUserSubreddits(String[] loginInfo){
HttpClient client = new DefaultHttpClient();
URL url = null;
try {
url = new URL("http://www.reddit.com/subreddits/mine/.json?limit=100");
HttpGet httpGet = new HttpGet(String.valueOf(url));
client.getParams().setParameter(CoreProtocolPNames.USER_AGENT, System.getProperty("http.agent"));
httpGet.addHeader("cookie", loginInfo[1]);
httpGet.addHeader("modhash", loginInfo[0]);
HttpResponse response = client.execute(httpGet);
HttpEntity ht = response.getEntity();
BufferedHttpEntity buf = new BufferedHttpEntity(ht);
InputStream is = buf.getContent();
BufferedReader r = new BufferedReader(new InputStreamReader(is));
StringBuilder total = new StringBuilder();
String line;
while ((line = r.readLine()) != null) {
total.append(line);
}
Log.d(TAG,total.toString());
} catch (Exception e) {
e.printStackTrace();
}
}

It was a simple mistake. To anyone in the future trying this I solved the problem by using Chrome to inspect the headers of an active session on http://www.reddit.com/subreddits/mine/.json?limit=100 url and found that the cookie header started with:
reddit_session
So I removed the modhash changed the my header parameter to read:
httpGet.addHeader("cookie", "reddit_session="+loginInfo[1]+";");
With this I got a valid response.