> For the complete documentation index, see [llms.txt](https://docs.prestashop-project.org/1-4-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.prestashop-project.org/1-4-documentation/english-documentation/developer-guide/developer-tutorials/using-the-rest-webservice/chapter-3-first-steps-access-the-web-service-and-list-client/3.1-access-the-web-service.md).

# 3.1 - Access the web service

In this section we will see how to access the web service via the PHP library.

First, you must create a `PrestaShopWebservice` instance that takes 3 parameters in its constructor:

* The store's root path (ex: <http://store.com/> )
* The authentication key (ex: ZR92FNY5UFRERNI3O9Z5QDHWKTP3YIIT)
* A Boolean indicating whether the Web service must use its debug mode

If you do not understand the terms of object-oriented programming such as instance, method, or constructor, that's okay for the rest of the tutorial. Here's how you create a Web service call:

```
$webService = new PrestaShopWebservice( 'http://mystore.com/', 'ZR92FNY5UFRERNI3O9Z5QDHWKTP3YIIT', false );
```

Once the instance is created, you can access the following methods:

| Method     | HTTP equivalent |
| ---------- | --------------- |
| **get**    | GET             |
| **add**    | POST            |
| **edit**   | PUT             |
| **delete** | DELETE          |

We will develop the use of these methods in other parts of the tutorial.