Is it possible to send a simple text in the body of a StringRequest using DELETE-Method?
I couldn't find any example where somebody put something in the body of a request...
This is my request and I want to add "{'deviceid':'xyz'}" to the body (method is DELETE):
final StringRequest stringRequest = new StringRequest(method, url + "?token=" + token, new Response.Listener<String>() {
#Override
public void onResponse(String jsonResponse) {
// do something
}, new Response.ErrorListener() {
// do something
}
}) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("api-version", "1");
return headers;
}
};
This because Volley doesn't send the Body for DELETE by default. Only for POST, PUT and PATCH. Unfortunate to say the least
There is a workaround for it listed here: Volley - how to send DELETE request parameters?
Try this:
public class StringJSONBodyReqest extends StringRequest {
private static final String TAG = StringJSONBodyReqest.class.getName();
private final String mContent;
public StringJSONBodyReqest(int method, String url, String content, Response.Listener<String> listener, Response.ErrorListener errorListener) {
super(method, url, listener, errorListener);
mContent = content;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("api-version", "1");
return headers;
}
#Override
public byte[] getBody() throws AuthFailureError {
byte[] body = new byte[0];
try {
body = mContent.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
Log.e(TAG, "Unable to gets bytes from JSON", e.fillInStackTrace());
}
return body;
}
#Override
public String getBodyContentType() {
return "application/json";
}
}
mContent is your json String
StringRequest stringRequest = new StringRequest(StringRequest.Method.PUT,
BASE_URL + "/addItem",
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//handle error
}
}) {
#Override
public byte[] getBody(){
String jsonString = json to send;
return jsonString.getBytes();
}
#Override
public String getBodyContentType() {
return "application/json";
}
};
MyRequestQueue.getInstance().addRequest(stringRequest);
Related
I want to send three parameters "guestEmail", "latitude" and "longitude" to backend and get a message of success from backend if it is successful.
I have tried doing this:
public void myGetFunc()
{
final String url = "....";
// prepare the Request
JsonObjectRequest getRequest = new JsonObjectRequest(Request.Method.GET, url, null,
new Response.Listener<JSONObject>()
{
#Override
public void onResponse(JSONObject response) {
// display response
Log.d("Response", response.toString());
Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_SHORT).show();
}
},
new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Error.Response", response);
}
}
)
{
#Override
protected Map<String, String> getParams()
{
Map<String, String> params = new HashMap<String, String> ();
params.put("guestEmail", "abc#xyz.com");
params.put("latitude", "12");
params.put("longitude", "12");
return params;
}
};
// add it to the RequestQueue
queue.add(getRequest);
}
This method is invoked when the 'SOS' button is clicked.
But right now, nothing happens on clicking the 'SOS' button.
Please help!
If you are going to use GET you query parameters and build the string yourself
private static final String URL = "http://www.test.com?value1={val1}&value2={val2}";
String requestString = URL;
requestString.replace("{val1}", "1");
requestString.replace("{val2}", "Bob");
StringRequest strreq = new StringRequest(Request.Method.GET,
requestString,
new Response.Listener<String>() {
#Override
public void onResponse(String Response) {
// get response
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError e) {
e.printStackTrace();
}
});
Volley.getInstance(this).addToRequestQueue(strreq);
If you are going to use POST us a body
public class LoginRequest extends Request<String> {
// ... other methods go here
private Map<String, String> mParams;
public LoginRequest(String param1, String param2, Listener<String> listener, ErrorListener errorListener) {
super(Method.POST, "http://test.url", errorListener);
mListener = listener;
mParams = new HashMap<String, String>();
mParams.put("paramOne", param1);
mParams.put("paramTwo", param2);
}
#Override
public Map<String, String> getParams() {
return mParams;
}
}
If you want to pass parameters than you need to use POST method otherwise for GET , just pass values in URL itself.
I'm trying to use KairosAPI's enroll POST request using Android Volley. However I keep getting Error 1002, image one or more required parameters are missing. I've tried two ways to add the parameters into the body of the JSON, which I've outlined in the code.
This is my code-
public class MainActivity extends AppCompatActivity {
RequestQueue requestQueue;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
postRequestToEnrollPersonInGallery();
}
public void postRequestToEnrollPersonInGallery() {
final String appId = "3e12****";
final String appKey = "156e06fd782a3304f085f***********";
String mainUrl = "https://api.kairos.com/";
String enrollRequestUrl = "enroll";
requestQueue = Volley.newRequestQueue(this);
StringRequest stringRequest = new StringRequest(Request.Method.POST, mainUrl + enrollRequestUrl, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d("Volley", response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Volley", error.toString());
}
}) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("Content-Type", "application/json");
params.put("app_id", appId);
params.put("app_key", appKey);
return params;
}
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("image", "https://s-media-cache-ak0.pinimg.com/originals/c6/c0/04/c6c004ec669d92faa36d8ff447884293.jpg");
params.put("subject_id", "12345");
params.put("gallery_name", "FirstGallery");
/*params.put("image", "\"url\":\"https://s-media-cache-ak0.pinimg.com/originals/c6/c0/04/c6c004ec669d92faa36d8ff447884293.jpg\"");
params.put("subject_id", "\"subject_id\":\"12345\"");
params.put("gallery_name", "\"gallery_name\":\"FirstGallery\""); -- i tried this too*/
return params;
}
};
requestQueue.add(stringRequest);
}
}
You aren't posting JSON.
You can either
1) Learn to use JsonObjectRequest
final JSONObject body = new JSONObject();
body.put(... , ...);
Request request = new JsonObjectRequest(url, body, ...);
2) Actually post a JSON String.
StringRequest request = new StringRequest(...) {
#Override
public byte[] getBody() throws AuthFailureError {
JSONObject params = new JSONObject();
params.put("image", "https://s-media-cache-ak0.pinimg.com/originals/c6/c0/04/c6c004ec669d92faa36d8ff447884293.jpg");
params.put("subject_id", "12345");
params.put("gallery_name", "FirstGallery");
return params.toString().getBytes();
}
#Override
public String getBodyContentType() {
return "application/json";
}
};
I try to use Volley library and upload image to server. This library should do this process in standalone mode, but have got following error message:
java.net.SocketException: sendto failed: ECONNRESET (Connection reset
by peer)
Is it maybe a server side misconfiguration?
I try to upload a jpeg image with this code:
private void uploadImage(){
final ProgressDialog loading = ProgressDialog.show(this,"Uploading...","Please wait...",false,false);
StringRequest stringRequest = new StringRequest(Request.Method.POST, UPLOAD_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String s) {
loading.dismiss();
Toast.makeText(PhotoActivity.this, s , Toast.LENGTH_LONG).show();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
loading.dismiss();
Toast.makeText(PhotoActivity.this, volleyError.getMessage().toString(), Toast.LENGTH_LONG).show();
}
}){
#Override
protected Map<String, String> getParams() throws AuthFailureError {
String image = getStringImage(bitmap);
String name = editTextName.getText().toString().trim();
Map<String,String> params = new Hashtable<String, String>();
params.put(KEY_IMAGE, image);
params.put(KEY_NAME, name);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
just to be sure, you need to change your uploadImage() into something like this:
private void uploadImage(){
final ProgressDialog loading = ProgressDialog.show(this,"Uploading...","Please wait...",false,false);
//here you use your custom multi-part-request as I suggested in the comment:
ImageUploadRequest imageUploadReq = new ImageUploadRequest(UPLOAD_URL,
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
loading.dismiss();
Toast.makeText(PhotoActivity.this, volleyError.getMessage().toString(), Toast.LENGTH_LONG).show();
}
},
new Response.Listener<String>() {
#Override
public void onResponse(String s) {
loading.dismiss();
Toast.makeText(PhotoActivity.this, s , Toast.LENGTH_LONG).show();
}
}, yourImageFile);
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(imageUploadReq);
}
Where your ImageUploadRequest class is defined as demonstrated in the accepted answer here like this:
public class ImageUploadRequest<T> extends Request<T> {
private static final String FILE_PART_NAME = "file";
private MultipartEntityBuilder mBuilder = MultipartEntityBuilder.create();
private final Response.Listener<T> mListener;
private final File mImageToUpload;
protected Map<String, String> headers;
public ImageUploadRequest(String uploadURL, ErrorListener errorListener, Listener<T> listener, File imageFileToUpload){
super(Method.POST, uploadURL, errorListener);
mListener = listener;
mImageToUpload = imageFileToUpload;
//call the helper method to build the multipart entity
buildMultipartEntity();
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = super.getHeaders();
if (headers == null || headers.equals(Collections.emptyMap())) {
headers = new HashMap<String, String>();
}
headers.put("Accept", "application/json");
return headers;
}
private void buildMultipartEntity(){
mBuilder.addBinaryBody(FILE_PART_NAME, mImageToUpload, ContentType.create("image/jpeg"), mImageToUpload.getName());
mBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
mBuilder.setLaxMode().setBoundary("xx").setCharset(Charset.forName("UTF-8"));
}
#Override
public String getBodyContentType(){
String contentTypeHeader = mBuilder.build().getContentType().getValue();
return contentTypeHeader;
}
#Override
public byte[] getBody() throws AuthFailureError{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
mBuilder.build().writeTo(bos);
} catch (IOException e) {
VolleyLog.e("IOException writing to ByteArrayOutputStream bos, building the multipart request.");
}
return bos.toByteArray();
}
#Override
protected Response<T> parseNetworkResponse(NetworkResponse response) {
T result = null;
return Response.success(result, HttpHeaderParser.parseCacheHeaders(response));
}
#Override
protected void deliverResponse(T response) {
mListener.onResponse(response);
}
}
I have made some minor adaptations of Upload an image using Google Volley to your specific situation. I hope this helps you and that others may also find it useful.
I usually get this error when I don't use url encoded queries.
Take a look URL encoding in Android
I'm developing an Android app that communicate with a RESTful web service I wrote. Using Volley for GET methods is awesome and easy, but I can't put my finger on the POST methods.
I want to send a POST request with a String in the body of the request, and retrieve the raw response of the web service (like 200 ok, 500 server error).
All I could find is the StringRequest which doesn't allow to send with data (body), and also it bounds me to receive a parsed String response.
I also came across JsonObjectRequest which accepts data (body) but retrieve a parsed JSONObject response.
I decided to write my own implementation, but I cannot find a way to receive the raw response from the web service. How can I do it?
You can refer to the following code (of course you can customize to get more details of the network response):
try {
RequestQueue requestQueue = Volley.newRequestQueue(this);
String URL = "http://...";
JSONObject jsonBody = new JSONObject();
jsonBody.put("Title", "Android Volley Demo");
jsonBody.put("Author", "BNK");
final String requestBody = jsonBody.toString();
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.i("VOLLEY", response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("VOLLEY", error.toString());
}
}) {
#Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
#Override
public byte[] getBody() throws AuthFailureError {
try {
return requestBody == null ? null : requestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", requestBody, "utf-8");
return null;
}
}
#Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
String responseString = "";
if (response != null) {
responseString = String.valueOf(response.statusCode);
// can get more details such as response.headers
}
return Response.success(responseString, HttpHeaderParser.parseCacheHeaders(response));
}
};
requestQueue.add(stringRequest);
} catch (JSONException e) {
e.printStackTrace();
}
I liked this one, but it is sending JSON not string as requested in the question, reposting the code here, in case the original github got removed or changed, and this one found to be useful by someone.
public static void postNewComment(Context context,final UserAccount userAccount,final String comment,final int blogId,final int postId){
mPostCommentResponse.requestStarted();
RequestQueue queue = Volley.newRequestQueue(context);
StringRequest sr = new StringRequest(Request.Method.POST,"http://api.someservice.com/post/comment", new Response.Listener<String>() {
#Override
public void onResponse(String response) {
mPostCommentResponse.requestCompleted();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
mPostCommentResponse.requestEndedWithError(error);
}
}){
#Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("user",userAccount.getUsername());
params.put("pass",userAccount.getPassword());
params.put("comment", Uri.encode(comment));
params.put("comment_post_ID",String.valueOf(postId));
params.put("blogId",String.valueOf(blogId));
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> params = new HashMap<String, String>();
params.put("Content-Type","application/x-www-form-urlencoded");
return params;
}
};
queue.add(sr);
}
public interface PostCommentResponseListener {
public void requestStarted();
public void requestCompleted();
public void requestEndedWithError(VolleyError error);
}
Name = editTextName.getText().toString().trim();
Email = editTextEmail.getText().toString().trim();
Phone = editTextMobile.getText().toString().trim();
JSONArray jsonArray = new JSONArray();
jsonArray.put(Name);
jsonArray.put(Email);
jsonArray.put(Phone);
final String mRequestBody = jsonArray.toString();
StringRequest stringRequest = new StringRequest(Request.Method.PUT, OTP_Url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.v("LOG_VOLLEY", response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("LOG_VOLLEY", error.toString());
}
}) {
#Override
public String getBodyContentType() {
return "application/json; charset=utf-8";
}
#Override
public byte[] getBody() throws AuthFailureError {
try {
return mRequestBody == null ? null : mRequestBody.getBytes("utf-8");
} catch (UnsupportedEncodingException uee) {
VolleyLog.wtf("Unsupported Encoding while trying to get the bytes of %s using %s", mRequestBody, "utf-8");
return null;
}
}
};
stringRequest.setShouldCache(false);
VollySupport.getmInstance(RegisterActivity.this).addToRequestque(stringRequest);
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.e("Rest response",response);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Rest response",error.toString());
}
}){
#Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String,String>();
params.put("name","xyz");
return params;
}
#Override
public Map<String,String> getHeaders() throws AuthFailureError {
Map<String,String> params = new HashMap<String,String>();
params.put("content-type","application/fesf");
return params;
}
};
requestQueue.add(stringRequest);
I created a function for a Volley Request. You just need to pass the arguments :
public void callvolly(final String username, final String password){
RequestQueue MyRequestQueue = Volley.newRequestQueue(this);
String url = "http://your_url.com/abc.php"; // <----enter your post url here
StringRequest MyStringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
//This code is executed if the server responds, whether or not the response contains data.
//The String 'response' contains the server's response.
}
}, new Response.ErrorListener() { //Create an error listener to handle errors appropriately.
#Override
public void onErrorResponse(VolleyError error) {
//This code is executed if there is an error.
}
}) {
protected Map<String, String> getParams() {
Map<String, String> MyData = new HashMap<String, String>();
MyData.put("username", username);
MyData.put("password", password);
return MyData;
}
};
MyRequestQueue.add(MyStringRequest);
}
I have a Volley Request code
RequestQueue queue = Volley.newRequestQueue(this);
String url =<My URL>;
// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Display the first 500 characters of the response string.
mTextView.setText("Response is: "+ response.substring(0,500));
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
mTextView.setText("That didn't work!");
}
});
// Add the request to the RequestQueue.
queue.add(stringRequest);
How do I set a header called Authorization in this??
Override getHeaders in request like:
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Display the first 500 characters of the response string.
mTextView.setText("Response is: "+ response.substring(0,500));
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
mTextView.setText("That didn't work!");
}
}){
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> params = super.getHeaders();
if(params==null)params = new HashMap<>();
params.put("Authorization","Your authorization");
//..add other headers
return params;
}
};
you can write a class extends Request.(override getHeaders() and so on)
just like
public abstract class AbsRequest<T> extends Request<T>{
public AbsRequest(int method, String url, Response.ErrorListener listener) {
this(method, url, null, listener);
}
public AbsRequest(int method, String url, Map<String, String> params, Response.ErrorListener listener) {
this(method, url, params, null, listener);
}
public AbsRequest(int method, String url, Map<String, String> params, Map<String, String> head, Response.ErrorListener listener) {
this(method, url, params, head, null, listener);
}
public AbsRequest(int method, String url, Map<String, String> params, Map<String, String> head, String bodyContentType, Response.ErrorListener listener) {
this(method, url, params, null, head, bodyContentType, listener);
}
public AbsRequest(int method, String url, String body, Map<String, String> head, String bodyContentType, Response.ErrorListener listener) {
this(method, url, null, body, head, bodyContentType, listener);
}
private AbsRequest(int method, String url, Map<String, String> params, String body, Map<String, String> head, String bodyContentType, Response.ErrorListener listener) {
super(method, url, listener);
}
}
for more information you can see https://github.com/Caij/CodeHub/blob/master/lib/src/main/java/com/caij/lib/volley/request/AbsRequest.java
how to use can see https://github.com/Caij/CodeHub/tree/master/app/src/main/java/com/caij/codehub/presenter/imp
A call to super.getHeaders() throws UnSupportedOperationException.
remove super.getHeaders() to get rid off that.
This here is a sample volley request showing how to add headers
private void call_api(final String url){
if(!this.isFinishing() && getApplicationContext() != null){
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
resultsTextView.setVisibility(View.INVISIBLE);
loader.setVisibility(View.VISIBLE);
}
});
Log.e("APICALL", "\n token: " + url);
StringRequest stringRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.e("APICALL", "\n response: " + response);
if(!FinalActivity.this.isFinishing()){
try {
JSONObject response_json_object = new JSONObject(response);
JSONArray linkupsSuggestionsArray = response_json_object.getJSONObject("data").getJSONArray("package");
final JSONObject k = linkupsSuggestionsArray.getJSONObject(0);
final String result = k.getJSONArray("action").getJSONObject(0).getString("url");
last_results_type = k.getString("type");
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
loader.setVisibility(View.INVISIBLE);
resultsTextView.setText(result);
resultsTextView.setVisibility(View.VISIBLE);
}
});
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), "An unexpected error occurred.", Toast.LENGTH_LONG).show();
finish();
}
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("APICALL", "\n error: " + error.getMessage());
Toast.makeText(getApplicationContext(), "Check your internet connection and try again", Toast.LENGTH_LONG).show();
finish();
}
}) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<>();
headers.put("apiUser", "user");
headers.put("apiKey", "key");
headers.put("Accept", "application/json");
//headers.put("Contenttype", "application/json");
return headers;
}
#Override
protected Map<String, String> getParams() {
Map<String, String> map = new HashMap<>();
map.put("location", "10.12 12.32");
return map;
}
};
stringRequest.setShouldCache(false);
stringRequest.setRetryPolicy(new DefaultRetryPolicy(
DefaultRetryPolicy.DEFAULT_TIMEOUT_MS * 2,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
requestQueue.add(stringRequest);
}
}