Next Page Token is not functional and display only maximum (50) results - java

I am trying to fetch all videos of a channel using youtube data api, but my code is giving error and doesn't respond to PAGE token
displayVideos();
}
private void displayVideos ()
{
RequestQueue requestQueue= Volley.newRequestQueue(this);
StringRequest stringRequest=new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
System.out.println(jsonObject.get("nextPageToken"));
JSONArray jsonArray = jsonObject.getJSONArray("items");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject1 = jsonArray.getJSONObject(i);
if (jsonObject1.has("id")){
JSONObject jsonVideoId=jsonObject1.getJSONObject("id");
if (jsonVideoId.has("kind")){
if(jsonVideoId.getString("kind").equals("youtube#video")){
JSONObject jsonObjectSnippet = jsonObject1.getJSONObject("snippet");
JSONObject jsonObjectDefault=jsonObjectSnippet.getJSONObject("thumbnails").getJSONObject("medium");
String video_id=jsonVideoId.getString("videoId");
VideoDetails vd=new VideoDetails();
vd.setVideoId(video_id);
vd.setTitle(jsonObjectSnippet.getString("title"));
vd.setDescription(jsonObjectSnippet.getString("description"));
vd.setUrl(jsonObjectDefault.getString("url"));
videoDetailsoArrayList.add(vd);
}
// recyclerView.setAdapter(adapter);
// adapter.notifyDataSetChanged();
}
}
}
}catch (JSONException e) {
e.printStackTrace();
}
the url I am trying to parse is
String url="https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCVMWWQ985A_-SESZUy_SsVQ&maxResults=50&pageToken="+nextPageToken+"&order=date&pageToken=CAUQAA&key=API_KEY";
I have been searchingb to apply nextpage token or page token in android studio but couldnt get specific tutorial. there are many examples but being naive in android studio I cant implement it into my code.

Please note that your URL does contain two instances of the parameter pageToken:
"https://www.googleapis.com/youtube/v3/search?part=snippet&channelId=UCVMWWQ985A_-SESZUy_SsVQ&maxResults=50&pageToken="+nextPageToken+"&order=date&pageToken=CAUQAA&key=API_KEY".
It should have only one for that to work OK; to be more precise, your URL should contain only this instance: pageToken="+nextPageToken+".
On the other hand, your code above does not show the loop implementing pagination. That is that you haven't shown the piece of code where you actually assign a valid value to the variable nextPageToken.
Therefore I cannot tell if your program will work or not.
The pagination loop would look like this:
// initially no pageToken
nextPageToken = null;
// URL as above, without the parameter pageToken
url = ...
do {
invoke the API on the URL: url + (nextPageToken != null ? "&pageToken=" + nextPageToken : "")
nextPageToken = jsonObject.get("nextPageToken");
} while (nextPageToken != null)

Related

How to fix NetworkUtility.shouldRetryException: Unexpected response code 404

i am using gofile link but when i call it i get this error
E/Volley: [4463] NetworkUtility.shouldRetryException: Unexpected response code 404 for https://api.gofile.io/getFolder?folderId=XuxRGg
i also attach the code part
public class GoFile {
public interface goFileCallback {
void onSuccess(String result);
void onError(VolleyError error);
}
public static void getStreamLink(Context context, String url, final goFileCallback callback) {
String[] parts = url.split("/");
String id = parts[4];
RequestQueue queue = Volley.newRequestQueue(context);
StringRequest sr = new StringRequest(com.android.volley.Request.Method.GET, "https://api.gofile.io/getFolder?folderId="+id, response -> {
JsonObject jsonObject = new Gson().fromJson(response, JsonObject.class);
JsonObject data = jsonObject.get("data").getAsJsonObject();
JsonObject contents = data.get("contents").getAsJsonObject();
for (String keyStr : contents.keySet()) {
JsonObject md5 = contents.get(keyStr).getAsJsonObject();
String link = md5.get("link").getAsString();
callback.onSuccess(link);
}
}, error -> callback.onError(error));
queue.add(sr);
}
}
i would be glad if some one help me to solve this
You should double check the link "https://api.gofile.io/getFolder?folderId=XuxRGg". Typing it in chrome also return 404.
say 404_Not Found response code -
check api link and find http_response_code(404)(in php) - probably there isn't response in database

How to find specific data from a Volley Api string response

I am new to APIs and finally figured out how to successfully retrieve a request response from a website. The thing is I am completely lost on how I should handle the response. I don't know how to access certain values within the response
here is my API Volley code
RequestQueue requestQueue = Volley.newRequestQueue(this);
String uri = Uri.parse("https://chicken-coop.p.rapidapi.com/games/Fortnite?platform=pc")
.buildUpon()
.build().toString();
StringRequest stringRequest = new StringRequest(
Request.Method.GET, uri, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
displayResults.setText("Response: " + response.substring(0,500));
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
displayResults.setText( "" + error.toString());
}
}) {
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("X-RapidAPI-Key", "5cdb2bbe57mshd9242c8d3177cb3p16f2fbjsnd7c5829eb4ad");
params.put("X-RapidAPI-Host", "chicken-coop.p.rapidapi.com");
return params;
}
};
requestQueue.add(stringRequest);
Here is the response query that I received
"result":{10 items
"title":"Fortnite"
"releaseDate":"Jul 25, 2017"
"description":"Epic Games next project has you building forts and stopping a zombie invasion."
"genre":[...
]6 items
"image":"https://static.metacritic.com/images/products/games/5/c7eb46ceb7da9c72c5a95193e8621faf-98.jpg"
"score":81
"developer":"Epic Games"
"publisher":[...
]1 item
"rating":"T"
"alsoAvailableOn":[6 items
0:
"iPhone/iPad"
1:
"PlayStation 3"
2:
"PlayStation 4"
3:
"Switch"
4:
"Xbox 360"
5:
"Xbox One"
How would I go about finding an explicit value from the response query? I have been searching for how to do this online and there are so many different ways to go about and I have no clue what to do. For example, how would I be able to put the Release Date into its own text box? Most of the examples I see online use JsonObjects when I m using a string response
in your onResponse method you need to parse your result so you can extract any data you want
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray jsonArray = jsonObject.getJSONArray("result");
// toaccess to your json data
String title = jsonArray.getString("title");
// your code
} catch (JSONException e) {
e.printStackTrace();
}
}

I have a mysql data base and a table in it, I encode it to json, when I run php file in browser and when i get it form android its something different

I have a mysql data base and a table in it, I encode it to json, when I run php file in browser i got something like this :
[
{
"product":"\u0645\u0627\u0633\u062a \u067e\u0631 \u0686\u0631\u0628 \u0633\u0648\u0646 \u06a9\u0627\u0644\u0647",
"info":"\u0645\u0627\u0633\u062a \u0633\u0648\u0646 \u06f5 \u062f\u0631\u0635\u062f \u0686\u0631\u0628\u06cc \u06f1\u060c\u06f5 \u06a9\u06cc\u0644\u0648\u06cc\u06cc \u06a9\u0627\u0644\u0647",
"price":"7\u060c800 \u062a\u0648\u0645\u0627\u0646",
"date":null,
"sale":"no sale",
"image":"Image source",
"buy":"Store"
}
]
that i think its ok , but when I get it in my android code its like the picture linked below:
this is the code i used in android
StringRequest stringRequest = new StringRequest(Request.Method.GET, server_url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray array = new JSONArray(response);
for (int i = 0; i < array.length(); i++) {
JSONObject product = array.getJSONObject(i);
productList.add(new Product(
product.getString("product"),
product.getString("info"),
product.getString("price"),
product.getString("date"),
product.getString("sale"),
product.getString("image"),
product.getString("buy")
));
}
ProductAdapter adapter = new ProductAdapter(MainActivity.this, productList);
recyclerView.setAdapter(adapter);
}
catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}
);
Volley.newRequestQueue(this).add(stringRequest);
So what can I do?
Thank you for your time.
I think you need to add an Accept header in your android request. The server is returning HTML because that is the default content-type. You should add a HTTP header "Accept: application/json".

org.json.JSONException: End of input at character 0 of

There is some issue with the JSONObjectRequest in Volley library to receive the JSON data. I suppose I am going wrong somewhere in receiving the JSON object in the Java code. Following is my JSON output coming as a response from the php file hosted on server:
{"workers":[
{"id":"1","name":"Raja","phonenumber":"66589952","occupation":"Plumber","location":"Salunke Vihar","rating":"4","Review":"Hard Worker","price":"80"},
{"id":"2","name":"Aman","phonenumber":"789456","occupation":"Plumber","location":"Wakad","rating":"4","Review":"Good","price":"80"}
],
"success":1}
Following is clode from the Java file where I am using the JSON request using Volley library:
JsonObjectRequest jsonRequest = new JsonObjectRequest (Request.Method.POST, url,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
// I should receive the success value 1 here
int success = response.getInt("success");
//and should receive the workers array here
Log.d("response",response.getJSONArray("workers").toString());
Log.d("success",""+success);
} catch (JSONException e) {
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), response.toString(), Toast.LENGTH_LONG).show();
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setLayoutManager(layoutManager);
//Finally initializing our adapter
adapter = new WorkerAdapter(listWorkers);
recyclerView.setAdapter(adapter);
//adapter is working fine
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("error",error.toString());
Toast.makeText(getApplicationContext(),error.toString(),Toast.LENGTH_LONG).show();
}
}){
#Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
params.put("tag", "get_list");
params.put("service", service);
return params;
}
Running the above code it goes to the error listener and gives the output as org.json.JSONException: End of input at character 0 of.
But if I use StringRequest in place of JsonObjectRequest and receive the JSON response as a string then I am able to receive the output as a String but I can't use it further. So, please let me know where I am going wrong in receiving the JSONdata and suggest me the changes in the code that I must do.
EDIT- I am adding the php file which is returning the JSON object. Please let me know if there is some error over here:
<?php
error_reporting(0);
include("config.php");
if($_SERVER['REQUEST_METHOD']=='POST'){
$tag = $_POST['tag'];
// array for JSON response
$response = array();
if ($tag == 'get_list') {
// Request type is check Login
$service = $_POST['service'];
//echo json_encode($service);
// get all items from myorder table
$result = mysql_query("SELECT * FROM Workers WHERE Occupation = '$service'") or die(mysql_error());
if (mysql_num_rows($result) > 0) {
$response["workers"] = array();
while ($row = mysql_fetch_array($result)) {
// temp user array
$item = array();
$item["id"] = $row["wID"];
$item["pic"] = $row["Pic"];
$item["name"] = $row["Name"];
$item["phonenumber"] = $row["Phone Number"];
$item["occupation"] = $row["Occupation"];
$item["location"] = $row["Location"];
$item["rating"] = $row["Rating"];
$item["Review"] = $row["Review"];
$item["price"] = $row["Price"];
// push ordered items into response array
array_push($response["workers"], $item);
}
// success
$response["success"] = 1;
}
else {
// order is empty
$response["success"] = 0;
$response["message"] = "No Items Found";
}
}
echo json_encode($response);
}
?>
When I ran the api end point I have got the following result instead of the one that you have been telling so. So stop giving irrelevant data.
"Plumber"{"workers":[{"id":"1","pic":"ttp:\/\/vorkal.com\/images\/vorkal_cover.PNG","name":"Raja","phonenumber":"66589952","occupation":"Plumber","location":"Salunke Vihar","rating":"4","Review":"Hard Worker. Very Professional.","price":"80"},{"id":"2","pic":"http:\/\/vorkal.com\/images\/vorkal_cover.PNG","name":"Aman","phonenumber":"789456","occupation":"Plumber","location":"Wakad","rating":"4","Review":"Good","price":"80"}],"success":1}
Where Plumber is not the tag at all, hence throws error as the same is not valid json string. There's error in your server side scripting. I request you to send the complete script without modification.
If you are not getting the JSONObject that means the following is a malformed json. Thus you can try the following code in server side
function utf8ize($d) {
if (is_array($d)) {
foreach ($d as $k => $v) {
$d[$k] = $this->utf8ize($v);
}
} else if (is_string ($d)) {
return utf8_encode($d);
}
return $d;
}
where$d is the string/response. use it as echo json_encode($this->utf8ize($detail));
Also try the following in client side code
Gson gson = new Gson();
JsonReader reader = new JsonReader(new StringReader(result1));
reader.setLenient(true);
You may refer the solution to this question here click here
you can use Gson to convert json string to object
Gson gson = new Gson();
GetWorkersResponse getWorkersResponse =gson.fromJson(response,GetWorkersResponse.class);
class GetWorkersResponse {
public boolean success;
public List<Worker> workers = new ArryList<>();
}
It's work for me.
Can you check that server is returning you a JSONObject and not the string? In Volley if the type of response is different then it will return the error.

How do i split a string of jsonObjects into an array

I'm getting some data from the Trello API over HTTP. So an example of the response would be:
'[{"name":"asd","desc":"yes"},{"name":"xyz","desc":"no"}]'
I'm using the volley library for making the request and getting the response. Is there a way for me to get the response in the form of json objects directly instead of in a string?
If not how should I proceed?
Thanks!
You can use JSONArray(). And then you can use getString() so you can use all string function.
Example code:
JSONArray jsonArray = new JSONArray(responseString);
int i = 0;
while (i <jsonArray.length()) {
JSONObject jsonObj = jsonArray.getJSONObject(i);
String name = jsonObj.getString("name");
String description = jsonObj.getString("desc");
//TODO create your Java object and store these strings into it.
i++;
}
use volley can solve easily.
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url,new Response.Listener<JSONArray>(){
#Override
public void onResponse(JSONArray response) {
//the response is JsonArray
}
},new Response.ErrorListener(){
#Override
public void onErrorResponse(VolleyError error) {
}
});

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