Develop Reference

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)

Set UTF-8 for Vietnamese Android

I need to send string (vietnamese) from Android devices to server like this:
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(Constants.URL.UPDATE_CURRENT_STATUS);
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("location", "Thạch thất Hanoi "));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs,
HTTP.UTF_8));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
int respnseCode = response.getStatusLine().getStatusCode();
if (respnseCode == 200) {
HttpEntity entity = response.getEntity();
return EntityUtils.toString(entity);
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
But when server gets the string, its not like
Thạch thất Hanoi
its become
Thạch Thất Hanoi
My code in server side:
#RequestMapping(value = "/UpdateCurrentStatus", method = RequestMethod.POST, produces = { "application/json" })
#ResponseBody
public MessageDTO updateCurrentStatus(
#RequestParam Map<String, String> requestParams) throws TNException {
String location = requestParams.get("location");
System.out.println(location);
MessageDTO result = driverBO.updateCurrentStatus(location);
return result;
}
How can I resolve this problem? Thank you.

Did you set you android httpclient Content-Type header to application/json; charset=utf-8 instead of "application/json"?
I think your problem is that the content entity location you sent is encoded correctly in UTF-8 but server failed to acknowledge UTF-8. clarify it in Content-Type header.
You can diagnose http content and its header with great http monitoring tool Fiddler.
-EDIT BELOW-
Relace your UrlEncodedFormEntity as below. Set header to application/json; charset=utf-8 as I described earlier. it's good to set it up still.
JSONObject jsonParam = new JSONObject();
jsonParam.put("location", "Thạch thất Hanoi ");
StringEntity entity = new StringEntity(jsonParam.toString(), "UTF-8");
httppost.setEntity(entity);

Android HTTP post not sending post valules

Really having problem with this issue.
The below code suppose to sent to POST values (username,password) to the server and the server should just response with the var_dump of GET and POST.
PHP CODE:
var_dump($_POST);
var_dump($_GET);
ANDROID CODE:
InputStream is = null;
//http post
try{
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url + "?test=test");
httpPost.setHeader("Content-Type", "application/json");
httpPost.setHeader("Accept", "application/json");
// place them in an array list
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("username", "1123"));
nameValuePairs.add(new BasicNameValuePair("password", "123123"));
// add array list to http post
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.i("Network", "POST URL: " + url);
Log.i("Network", "POST ARGS: " + jsonObj.toString());
} catch(Exception e){
Log.e("Network", "POST Error in http connection " + e.toString());
}
But all i get is:
array(0) {
}
array(1) {
["test"]=> string(4) "test"
}
I have tested the server with curl: curl -F 'username=test' http://xx.xx.xx.xx/test.php
And it gives me correct return:
array(1) {
["username"]=> string(9) "test"
}
array(0) {
}
So what am i doing wrong in the android post ?

You should not set your Content-Type header to application/json. You can either do not set the Content-Type header or set it manually to application/x-www-form-urlencoded.

Android Getting JSON return error from POST Http execution

I'm currently trying to send data via POST to a server, and the server is handling the data and appends it to a JSON file. I'm currently getting a 422 error and I've been receiving it for a while now. My question is: How do I receive that JSON error itself in Java so that I can see what the error is. All I'm seeing is a HttpResponseException and it doesn't give me anything else. Thanks for the time and help in advance.
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(mPath);
// Add your data
try
{
List nameValuePairs = new ArrayList(4);
httppost.setHeader("Authorization", Base64.encodeToString(new StringBuilder(bundleId).append(":").append(apiKey).toString().getBytes("UTF-8"), Base64.URL_SAFE|Base64.NO_WRAP));
nameValuePairs.add(new BasicNameValuePair("state", "CA"));
nameValuePairs.add(new BasicNameValuePair("city", "AndDev is Cool!"));
nameValuePairs.add(new BasicNameValuePair("body", "dsads is assrawstjljalsdfljasldflkasjdfjasldjflasjdflkjaslfggddsfgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfdsgfddjflaskjdfkasjdlfkjasldfkjalskdjfajasldfkasdlfjasljdflajsdfjasdjflaskjdflaksjdfljasldfkjasljdflajsasdlfkjasldfkjlas!"));
nameValuePairs.add(new BasicNameValuePair("title", "dsaghhhe fd!"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
//HttpResponse response = httpclient.execute(httppost);
//int status = response.getStatusLine().getStatusCode();
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String responseBody = httpclient.execute(httppost, responseHandler);
Log.v(TAG, "response: " + responseBody);
//JSONObject response = new JSONObject(responseBody);
int f = 0;
}
catch(HttpResponseException e)
{
Log.e(TAG, e.getLocalizedMessage());
Log.e(TAG, e.getMessage());
e.printStackTrace();
}

you may send your parameters more conveniently by using predefined Json class as below:
String jsonParam = null;
try{
JSONObject param = new JSONObject();
param.put("state", "CA");
param.put("city", "AndDev is Cool!");
//and so on with other parameters
jsonParam = param.toString();
}
catch (Exception e) {
// TODO: handle exception
}
and set the post entity as:
if(jsonParam != null)
httppost.setEntity(new StringEntity(jsonParam, HTTP.UTF_8));

422 error says: Unprocessable Entity - The request was well-formed but was unable to be followed due to semantic errors
You got a problem with UrlEncodedFormEntity

Android: Http post with parameters not working

I need to create an HTTP POST request with parameters. I know there are many examples out there, I have tried using HTTPparams, NameValuePair etc but cant seem to get the correct format for the server.
Server Type: REST based API utilizing JSON for data transfer
Content-type: application/json
Accept: application/json
Content-length: 47
{"username":"abcd","password":"1234"}
I can pass these headers but I cant seem to pass these params "username","password". Here is my code:
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://www.mymi5.net/API/auth/login");
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("username","abcd"));
pairs.add(new BasicNameValuePair("password","1234"));
post.setHeader("Content-type", "application/json");
post.setHeader("Accept", "application/json");
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(pairs,"UTF-8");
post.setEntity(entity);
HttpResponse response = client.execute(post);
I tried to debug, but cant see if entity is attached properly or not... What am I doing wrong?
Thanks in Advance.
Maaz

Try this:
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://www.mymi5.net/API/auth/login");
post.setHeader("Content-type", "application/json");
post.setHeader("Accept", "application/json");
JSONObject obj = new JSONObject();
obj.put("username", "abcd");
obj.put("password", "1234");
post.setEntity(new StringEntity(obj.toString(), "UTF-8"));
HttpResponse response = client.execute(post);

I'm not quite sure, from your description, but it would seem that your server expects a JSON content object instead of the data being encoded in the URL. Send something like this as the body of your post:
{"username":"abcd","password":"1234"}

HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://www.mymi5.net/API/auth/login");
List<NameValuePair> pairs = new ArrayList<NameValuePair>();
pairs.add(new BasicNameValuePair("username","abcd"));
pairs.add(new BasicNameValuePair("password","1234"));
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(pairs,HTTP.UTF_8);
post.setEntity(entity);
HttpResponse response = client.execute(post);
just try this coz it works perfect for me when i am trying to HTTP post.

this will probably work for you.
assuming you already have the json object.
NOTE: (1)in the server you need to handle th request as utf-8 (also in the DB).
#SuppressWarnings("unchecked")
private static HttpResponse executePostRequest(JSONObject jsonData, String url) {
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpPost httpost = new HttpPost(url);
try {
httpost.setEntity(new ByteArrayEntity(jsonData.toString().getBytes("UTF8")));
httpost.setHeader("Accept", "application/json");
httpost.setHeader("Content-type", "application/json;charset=UTF-8");
httpost.setHeader("Accept-Charset", "utf-8");
HttpResponse httpResponse = httpclient.execute(httpost);
return httpResponse;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
then in the client handle the server response like this:
String responseBody = EntityUtils
.toString(response.getEntity(), "UTF-8");