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Pricing Blog

# JS Adapter

Keitaro doesn't support natively landing pages, so it's necessarily to apply several changes.

That solution is compatible with:

# Setting up the code

For each page:

  1. Find <head> .... </head> tags.
  2. Copy and paste that code:
<script type="application/javascript">
function getCookie(name) {
    var v = document.cookie.match('(^|;) ?' + name + '=([^;]*)(;|$)');
    return v ? v[2] : null;
}

function setCookie(name, value, days) {
    var d = new Date;
    d.setTime(d.getTime() + 24*60*60*1000*days);
    document.cookie = name + "=" + value + ";path=/;expires=" + d.toGMTString();
}

function getSubId() {
  var params = new URLSearchParams(document.location.search.substr(1));
  if (!'{subid}'.match('{')) {
    return '{subid}';
  }
  var clientSubid = '<?php echo isset($client) ? $client->getSubid() : "" ?>';
  if (!clientSubid.match('>')) {
    return clientSubid;
  }
  if (params.get('_subid')) {
    return params.get('_subid')
  }
  if (params.get('subid')) {
    return params.get('subid')
  }
  if (getCookie('subid')) {
    return getCookie('subid');
  }
}

function getToken() {
  var params = new URLSearchParams(document.location.search.substr(1));
  if (!'{token}'.match('{')) {
    return '{token}';
  }
  var clientToken= '<?php echo isset($client) ? $client->getToken() : "" ?>';
  if (!clientToken.match('>')) {
    return clientToken;
  }
  if (params.get('_token')) {
    return params.get('_token')
  }
  if (params.get('token')) {
    return params.get('token')
  }
  if (getCookie('token')) {
    return getCookie('token');
  }
  return null;
}

function getPixel() {
  var params = new URLSearchParams(document.location.search.substr(1));
  if (!'{pixel}'.match('{')) {
    return '{pixel}';
  }
  if (params.get('pixel')) {
    return params.get('pixel')
  }
  
  if (getCookie('pixel')) {
    return getCookie('pixel');
  }
  
  return null;
}

if (typeof URLSearchParams === 'function') {
  document.addEventListener("DOMContentLoaded", function(event) {
    var params = new URLSearchParams(document.location.search.substr(1));
    var subid = getSubId();
    var token = getToken();
    var pixel = getPixel();
    
    params.set('_token', token);
    setCookie('pixel', pixel);
    setCookie('token', token);
    setCookie('subid', subid);
        
    // Adds params to the links  
    document.querySelectorAll('a').forEach(function(link) {
        var url = new URL(link.href); 
        params.forEach(function(v, k) { 
            url.searchParams.append(k, v);
        }); 
        link.href = url.toString();
    });
    
    // Adds params as hidden inputs to the forms
    document.querySelectorAll('form').forEach(function(form) {
        params.forEach(function(v, k) { 
            var input = document.createElement('input'); 
            input.type = 'hidden';
            input.name = k;
            input.value = v;
    
            form.append(input);
        });
    });
  })
}
</script>
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For single offer:

<a href="/?_lp=1">Offer</a>
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To create links for multiple offers, use offer_id:

<a href="/?_lp=1&offer_id=21">Offer 1</a>
<a href="/?_lp=1&offer_id=33">Offer 2</a>
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Read also Offer URL page.

# Sending postback

# FB Pixel

Use function getPixel() to get saved pixel value:

<!-- Facebook Pixel Code -->
<script>
!function(f,b,e,v,n,t,s)
{if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};
if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';
n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];
s.parentNode.insertBefore(t,s)}(window, document,'script',
'https://connect.facebook.net/en_US/fbevents.js');
fbq('init', getPixel());
fbq('track', 'Lead');
</script>
<!-- End Facebook Pixel Code -->
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That pixel works on any secondary page as well.

It's also compatible with solution mentioned on FB Pixel.

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