# Installation
The n360ortb library uses an asynchronous loader pattern that ensures the library loads without blocking page rendering while allowing you to queue commands immediately.
## Async Loader Snippet
Add the following snippet to the `` section of your page:
```javascript
!function(){if(!window.n360ortb){window.n360ortb={init:function(){e("init",arguments)},fetchBids:function(){e("fetchBids",arguments)},setDisplayBids:function(){},targetingKeys:function(){return[]},que:[]};var n=document.createElement("script");n.async=!0,n.src="https://lib.nexx360.io/nexx360ortb/api.js";var t=document.getElementsByTagName("script")[0];t.parentNode.insertBefore(n,t)}function e(n,t){window.n360ortb.que.push([n,t])}}();
```
### Formatted Version
Here's the same snippet formatted for readability:
```javascript
!function() {
if (!window.n360ortb) {
window.n360ortb = {
init: function() { e("init", arguments) },
fetchBids: function() { e("fetchBids", arguments) },
setDisplayBids: function() {},
targetingKeys: function() { return [] },
que: []
};
var n = document.createElement("script");
n.async = !0;
n.src = "https://lib.nexx360.io/nexx360ortb/api.js";
var t = document.getElementsByTagName("script")[0];
t.parentNode.insertBefore(n, t);
}
function e(n, t) {
window.n360ortb.que.push([n, t]);
}
}();
```
## How It Works
The loader snippet creates a stub object on `window.n360ortb` that queues all API calls until the full library loads. This pattern allows you to:
1. **Call methods immediately** - No need to wait for script load events
2. **Non-blocking load** - The script loads asynchronously
3. **Guaranteed execution order** - Commands execute in the order they were called
## Script URL
The library is served from Nexx360's CDN:
```
https://lib.nexx360.io/nexx360ortb/api.js
```
{% hint style="info" %}
The library is automatically updated with bug fixes and improvements. No action is required on your part to receive updates.
{% endhint %}
## Command Queue Pattern
You can start calling n360ortb methods immediately after including the loader snippet:
```javascript
// These calls are queued and will execute once the library loads
n360ortb.init({
currency: 'EUR'
});
n360ortb.fetchBids({
slots: [
{ tagId: 'my-tag', divId: 'ad-div', sizes: [[300, 250]] }
]
}, function(bids) {
console.log('Bids:', bids);
});
```
## Complete HTML Example
```html
My Page
```
## Next Steps
* [API Reference](/integration-methods/direct-integration-n360ortb/api-reference.md) - Learn about all available methods
* [Standalone Integration](/integration-methods/direct-integration-n360ortb/standalone-integration.md) - Render ads without an ad server
* [GAM Integration](/integration-methods/direct-integration-n360ortb/gam-integration.md) - Integrate with Google Ad Manager
---
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```
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