how can i call api without key in Volley ?

hellow guys below is my code, i want to get data from api and populate in graph in android but when i call api its shows error please help me, how can i call , api which have no any key

package com.example.myapplication;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class MainActivity extends AppCompatActivity {
private TextView mTextViewResult;
private RequestQueue mQueue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTextViewResult = findViewById(R.id.text_view_result);
Button buttonParse = findViewById(R.id.button_parse);
mQueue = Volley.newRequestQueue(this);
buttonParse.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
jsonParse();
}
});
}
private void jsonParse() {
String url = "http://marjanjewellers.co/bilal/api.php";
JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,
new Response.Listener() {
@Override
public void onResponse(JSONObject response) {
try {
JSONArray jsonArray = response.getJSONArray("0"); //here what i do
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject employee = jsonArray.getJSONObject(i);
//String firstName = employee.getString("firstname");
//int age = employee.getInt("age");
// String mail = employee.getString("mail");
// mTextViewResult.append(firstName + ", " + String.valueOf(age) + ", " + mail + "\n\n");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
});
mQueue.add(request);
}
}

and api response is like this

[{"id":"1","altitude":"95.5","airpressure":"98.45","temperature":"45.89","pulserate":"85"}]

1 Reply

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Vishvjit Shinde6y ago
Accepted answer
I don't think so that we can call Volley without Key.

but you can check on official web site
https://developer.android.com/training/volley/index.html

and check this also:
https://stackoverflow.com/questions/17571759/how-do-you-use-the-android-volley-api
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