<?php   

           

      $json = CONFIRM URL  
      $refid = trim($_GET['refno']);
      
      $refid = trim($_GET['refno']);   
      $refdy = "?refid=".$refid."&&masterkey=".$masterkey."&&stafd=stat";
      
      $url = $json."".$refdy;
       $jsonfile =  file_get_contents($url);
       $var = json_decode($jsonfile);
       
       if($var->status_request == "1"){
       if($var->status == "1"){
       
        echo "Payment was successfull";
        
        }else{
		
		echo "Payment Decline/Cancelled";

         };

          }else{

           echo "Error:1209";

           } ;

   ?>

const express = require('express');

const request = require('request');

const bodyParser = require('body-parser');

const path = require('path');

const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}))

//bwallet callback
app.get('/bwallet/callback', (req,res) => {

const refid = req.query.reference;
const masterkey = 45556;

verifyTransaction(refid, (error,body)=>{
if(error){
//handle errors appropriately
console.log(error);
}
response = JSON.parse(body);
//setting callback data to json
const data = _.at(response.data, ['refid','masterkey']);
//callback data
[refid, masterkey] = data;

//Post callback request
request({
url: " https://bwalletpay.com/processor/verify",
method: "GET",
json: true,
body: data
}, function (error, response, body){

});

 

})
});

//start server port listening
app.listen(3000);

    

String url = CONFIRM URL;
     String masterkey="your application master key";
      String refid = "YOUR GET PARAMETER of GET request refno";
     String cont = "masterkey="+masterkey+"&refid="+refid+"&gfh=09";
     URL obj = new URL(url);
     HttpURLConnection con = (HttpURLConnection) obj.openConnection();
     // optional default is GET
     con.setRequestMethod("GET");
     //add request header
     con.setRequestProperty("User-Agent", "Mozilla/5.0");
     int responseCode = con.getResponseCode();
     
     BufferedReader in = new BufferedReader(
             new InputStreamReader(con.getInputStream()));
     String inputLine;
     StringBuffer response = new StringBuffer();
     while ((inputLine = in.readLine()) != null) {
     	response.append(inputLine);
     }
     in.close();
      System.out.println(response.toString());
     JSONObject myResponse = new JSONObject(response.toString());
     if(myResponse.getString("status_request").equalsIgnoreCase("1")){
     if(myResponse.getString("status").equalsIgnoreCase("1")){
       
       System.out.println("Payment made successfully");
        
        }else{
		 if(myResponse.getString("status").equalsIgnoreCase("3")){
		System.out.println("Unable to complete transaction");
                 }else{
                 System.out.println("Sorry pending payment");
                 }
         };
 
        }
     
   }