Documentation

Getting Started

Welcome to the Galla Media documentation. Bellow you will find all required informations to integrate our offerwall into your website in just few minutes.

Before integrating our offerwall, make sure you're registered on our website, account is required to use any of our tools.

Add your Website

To be able to integrate our offerwall, first you have to add your website. Once you have added your website you will have an API KEY and a SECRET KEY, that you will need to integrate our offerwall.

To register your website into our service, please follow these steps:

1. Login to your Galla Media account.
2. You should now see the Add New App button at sidebar. Click this button to add your first website or app.
3. Set your App Name, URL and application type (platform) and proceed to next step.
4. Set your Currency Name in plural form (e.g. Points, Tokens, Coins...), Currency Round (the number of decimals your currency can have, up to 2 decimals) and Exchange Rate (how many of your website currency units will a user earn for every 1 USD that we will pay you).
5. Set your Postback URL. Whenever a user completes an offer, we will make a call to this URL by sending all the information needed to help you to credit the virtual currency to your users.
6. Done! You have add your website, one of our team members will review it and once it is approved you will receive an email in the meantime you can continue with the integration process. You will find more informatons about postback integration in next chapters of this documentation.

Integrate Offerwall

Our Offerwall enables users to benefit from incentives and rewards thanks to segmented, automatically translated ads. Our offerwall will adapt to any screen and will show offers to your users.

Before being able to integrate our offerwall, you must register your website first. Once you have registered your website you will have an API KEY and a SECRET KEY, that you will need in the following steps.

1. Click on My Apps button on sidebar.
2. From your websites list, you can get your API and Secret keys, anyway if you click Edit button on any of your apps you will be able to get your full integration code of the offerwall.
   
   
   You can copy the offerwall code and place the code into your website.

Website Integration

If you are looking to integrate the offerwall into your website, either open the offerwall in a new tab (for example using the JavaScript command below) or show the offerwall in an iFrame.

JavaScript Integration

window.open("https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]")

iFrame Integration

<iframe scrolling="yes" 
frameborder="0" src="https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]"></iframe>

Replace [API_KEY] with your website api key and [USER_ID] by the unique identifier code of the user of your site who is viewing the wall.

Android Integration

If you are looking to integrate the offerwall into your Android app, either open the offerwall in Google Chrome or use a web view to show the offerwall inside your app.

URL

https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]

WebView Example

WebView myWebView = new WebView(activityContext);
setContentView(myWebView);

WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);

myWebView.loadUrl("https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]");

Replace [API_KEY] with your website api key and [USER_ID] by the unique identifier code of the user of your site who is viewing the wall.

iOS Integration

If you are looking to integrate the offerwall into your iOS app, either open the offerwall in Safari or use a web view to show the offerwall inside your app.

URL

https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]

WebView Example

import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {

   var webView: WKWebView!

   override func loadView() {
       let webConfiguration = WKWebViewConfiguration()
       webView = WKWebView(frame: .zero, configuration: webConfiguration)
       webView.uiDelegate = self
       view = webView
   }
   override func viewDidLoad() {
       super.viewDidLoad()
       let myURL = URL(string:"https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]")
       let myRequest = URLRequest(url: myURL!)
       webView.load(myRequest)
   }}

Replace [API_KEY] with your website api key and [USER_ID] by the unique identifier code of the user of your site who is viewing the wall.

React Native

If you are looking to integrate the offerwall into your React Native app, either open the offerwall in the default browser of the user with the Linking-API or use react-native-webview to show the offerwall inside your app.

Linking

import { Linking } from 'react-native';
Linking.openURL('https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]');

React Native WebView

/*
  Add react-native-webview to your dependencies. Using Yarn:
	yarn add react-native-webview
  Using npm:
	npm install --save react-native-webview
  Using Expo:
	npx expo install react-native-webview
*/
import { WebView } from 'react-native-webview';
return <WebView source={{ uri: 'https://gallamedia.com/offerwall/[API_KEY]/[USER_ID]' }} />;

Replace [API_KEY] with your website api key and [USER_ID] by the unique identifier code of the user of your site who is viewing the wall.

Offerwall Parameters

Bellow you can see parameters supported by our offerwall. Make sure you properly replace them during your offerwall integration.

S2S Postback

Whenever a user complete an offer, we will make a call to the Postback URL that you indicated in your app attaching all the information that you will need to credit your users.

Our server will make a HTTP POST request to your server including all of the following parameters.

"reward" and "payout" parameters are always absolute values, you will need to check status parameter to see if you need to add or subtract that amount from your users.

Postback Security

You should verify the signature received in the postback to ensure that the call comes from our servers.
Signature parameter should match MD5 of subId transactionId reward secret key. You can find your Secret Key of your website in My Websites section.

The formula to be checked is as follows:

<?php
  $secret = ""; // Get your secret key from Galla Media

  $subId = isset($_REQUEST['subId']) ? $_REQUEST['subId'] : null;
  $transId = isset($_REQUEST['transId']) ? $_REQUEST['transId'] : null;
  $reward = isset($_REQUEST['reward']) ? $_REQUEST['reward'] : null;
  $signature = isset($_REQUEST['signature']) ? $_REQUEST['signature'] : null;

  // Validate Signature
  if(md5($subId.$transId.$reward.$secret) != $signature)
  {
   echo "ERROR: Signature doesn't match";
   return;
  }
?>

Our servers wait for a response for a maximum time of 60 seconds before the timeout. In this case, postback will be marked as failed. Please, check if the transaction ID sent to you was already entered in your database, this will prevent to give twice the same amount of virtual currency to the user.

IPs to whitelist

We will be sending the postbacks from any of the following IP addresses. Please make sure they are whitelisted if needed to be in your server.

Respond to Postback

Our servers will expect your website to respond with "ok". If your postback doesn't return "ok" as response, postback will be marked as failed (even if postback was successfully called) and you will be able to resend it manually from our website.

Postback Example

The following PHP example is not a working one but should be enough to understand how you should implement your postback in your website.

<?php
  $secret = ""; // Get your secret key from Galla Media

  // Proceess only requests from Galla Media IP addresses
  $allowed_ips = array(162.159.24.201, 162.159.25.42);
  if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
  {
   $IP = $_SERVER['HTTP_X_FORWARDED_FOR']; 
  }
  else 
  { 
   $IP = $_SERVER['REMOTE_ADDR'];
  }

  if(!in_array($IP, $allowed_ips)) 
  {
   echo "ERROR: Invalid source";
   return;
  }

  // Get postback variables
  $userId = isset($_REQUEST['subId']) ? $_REQUEST['subId'] : null;
  $transId = isset($_REQUEST['transId']) ? $_REQUEST['transId'] : null;
  $reward = isset($_REQUEST['reward']) ? $_REQUEST['reward'] : null;
  $reward_name = isset($_REQUEST['reward_name']) ? $_REQUEST['reward_name'] : null;
  $reward_value = isset($_REQUEST['reward_value']) ? $_REQUEST['reward_value'] : null;
  $offer_name = isset($_REQUEST['offer_name']) ? $_REQUEST['offer_name'] : null;
  $offer_type = isset($_REQUEST['offer_type']) ? $_REQUEST['offer_type'] : null;
  $payout = isset($_REQUEST['payout']) ? $_REQUEST['payout'] : null;
  $ipuser = isset($_REQUEST['userIp']) ? $_REQUEST['userIp'] : "0.0.0.0";
  $country = isset($_REQUEST['country']) ? $_REQUEST['country'] : null;
  $status = isset($_REQUEST['status']) ? $_REQUEST['status'] : null;
  $debug = isset($_REQUEST['debug']) ? $_REQUEST['debug'] : null;
  $signature = isset($_REQUEST['signature']) ? $_REQUEST['signature'] : null;

  // Validate signature
  if(md5($userId.$transId.$reward.$secret) != $signature)
  {
    echo "ERROR: Signature doesn't match";
    return;
  }

  // Add or substract the reward
  if($status == 2)
  {
    //  2 = Chargeback, substract reward from user
    $reward = -abs($reward);
  }

   // Check if the transaction is new, use $transId to valiate it
  if(isNewTransaction($transId))
  { 
    // Transaction is new, reward your user
    processTransaction($userId, $reward, $transId);
  }
  else
  {
    // This transaction already exist
  }

  echo "ok"; // Important!
?>