title: To Link Postgresql to Android Studio using Node Js
body: <p>I'm new to Android App Development.I created a API for connecting Android Studio to Postgresql using Node Js and it is working in Postman. But showing 'No Connection' using Volley in Android. my code is as follows.</p>
  <pre><code> final ProgressDialog loading =  ProgressDialog.show(this,&quot;Loading&quot;,&quot;please wait&quot;,false,true);
            RequestQueue queue1=Volley.newRequestQueue(this);
  
  
          String url= &quot;http//192.168.0.104:3000/users/&quot;;
  
        JsonArrayRequest jsonArrayRequest= new JsonArrayRequest(Request.Method.GET,url,null,
  
          new Response.Listener&lt;JSONArray&gt;() {
              @Override
              public void onResponse(JSONArray response) {
  
                  Toast.makeText(MainActivity.this, &quot;ON RESPONSE&quot;, Toast.LENGTH_SHORT).show();
              }
  
          }, new Response.ErrorListener() {
      @Override
      public void onErrorResponse(VolleyError error) {
  
  
  
         if (error instanceof AuthFailureError) {
              Toast.makeText(MainActivity.this, &quot;Authentication Failure&quot;, Toast.LENGTH_SHORT).show();
          }
  
  
         else if (error instanceof TimeoutError ) {
  
             Toast.makeText(MainActivity.this, &quot;Network Time Out&quot;, Toast.LENGTH_SHORT).show();
  
  
         }
  
          else if ( error instanceof NoConnectionError) {
  
              Toast.makeText(MainActivity.this, &quot;No Cone&quot;, Toast.LENGTH_SHORT).show();
  
  
          }
  
          else if (error instanceof TimeoutError ) {
  
                      Toast.makeText(MainActivity.this, &quot;Network Time Out&quot;, Toast.LENGTH_SHORT).show();
  
  
          }  else if (error instanceof ServerError) {
              Toast.makeText(MainActivity.this, &quot;Server error&quot;, Toast.LENGTH_SHORT).show();
          } else if (error instanceof NetworkError) {
              Toast.makeText(MainActivity.this, &quot;Network Error&quot;, Toast.LENGTH_SHORT).show();
          } else if (error instanceof ParseError) {
              Toast.makeText(MainActivity.this, &quot;Parse Error&quot;, Toast.LENGTH_SHORT).show();
          }
          Toast.makeText(MainActivity.this, &quot;ERROR RESPONSE&quot;, Toast.LENGTH_SHORT).show();
      }
  }
  
  );
  
  
          queue1.add(jsonArrayRequest);
  
  
  </code></pre>
  <p>I tried with diffent options but none work. Can you give me an example of connecting to the database.</p>