SDK examples (#1)

* add partner, customer, transaction sdk examples.

---------

Co-authored-by: Gediminas <[email protected]>

README.md

@@ -2,6 +2,27 @@ Partnero PHP SDK
 
 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](/LICENSE)
 
+# Table of Contents
+
+* [Installation](#installation)
+* [Usage](#usage)
+  * [Partners API](#partners-for-affiliate-program)
+    * [Get a list of partners](#get-a-list-of-partners)
+    * [Get partner](#get-partner)
+    * [Create partner](#create-partner)
+    * [Update partner](#update-partner)
+    * [Delete partner](#delete-partner)
+  * [Customers API](#customers)
+    * [Get a list of customers](#get-a-list-of-customers)
+    * [Get customer](#get-customer)
+    * [Create customer](#create-customer)
+    * [Update customer](#update-customer)
+    * [Delete customer](#delete-customer)
+  * [Transactions API](#transactions)
+    * [Create transaction](#create-transaction)
+    * [Delete transaction](#delete-transaction)
+* [Support and Feedback](#support-and-feedback)
+
 # Installation
 
 ## Requirements
@@ -19,10 +40,200 @@ This library is built atop of [PSR-7](https://www.php-fig.org/psr/psr-7/) and
 composer require partnero/partnero-php
 ```
 
+<a name="usage"></a>
+# Usage
+
+<a name="partners-api"></a>
+## Partners for Affiliate program
+
+<a name="get-a-list-of-partners"></a>
+### Get a list of partners
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->partners()->list(10);
+```
+
+<a name="get-partner"></a>
+### Get partner
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->partners()->find('partner-key');
+```
+
+<a name="create-partner"></a>
+### Create partner
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Partner;
+
+$partnero = new Partnero('api_key');
+
+$partner = (new Partner())
+  ->setEmail('[email protected]')
+  ->setName('Name')
+  ->setKey('partner-key');
+
+$partnero->partners()->create($partner);
+```
+
+Key is optional.  
+If key is not set, a random key will be generated for the partner.
+
+<a name="update-partner"></a>
+### Update partner
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Partner;
+
+$partnero = new Partnero('api_key');
+
+$partner = (new Partner())
+  ->setEmail('[email protected]')
+  ->setName('John')
+  ->setKey('john-doe');
+
+$partnero->partners()->update('partner-key', $partner);
+```
+
+<a name="delete-partner"></a>
+### Delete partner
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->partners()->delete('john-doe');
+```
+
+<a name="customer-api"></a>
+## Customers
+
+<a name="get-a-list-of-customers"></a>
+### Get a list of customers
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Partner;
+
+$partnero = new Partnero('api_key');
+
+$partner = (new Partner())
+  ->setKey('partner-key');
+
+$partnero->customers()->list(10, $partner);
+```
+
+<a name="get-customer"></a>
+### Get customer
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->customers()->find('customer-key');
+```
+
+<a name="create-customer"></a>
+### Create customer
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Partner;
+use Partnero\Models\Customer;
+
+$partnero = new Partnero('api_key');
+
+$partner = new Partner();
+$partner->setKey('partner-key');
+
+$customer = (new Customer())
+  ->setKey('customer-key')
+  ->setName('Name')
+  ->setEmail('[email protected]');
+
+$partnero->customers()->create($customer, $partner);
+```
+
+<a name="update-customer"></a>
+### Update customer
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Customer;
+
+$partnero = new Partnero('api_key');
+
+$customer = (new Customer())
+  ->setKey('new-customer-key')
+  ->setName('John')
+  ->setEmail('[email protected]');
+
+$partnero->customers()->update('customer-key', $customer);
+```
+
+<a name="delete-customer"></a>
+### Delete customer
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->customers()->delete('new-customer-key');
+```
+
+<a name="transactions-api"></a>
+## Transactions
+
+<a name="create-transcation"></a>
+### Create transaction
+
+```php
+use Partnero\Partnero;
+use Partnero\Models\Customer;
+use Partnero\Models\Transaction;
+
+$partnero = new Partnero('api_key');
+
+$customer = (new Customer())
+  ->setKey('customer-key');
+
+$transaction = (new Transaction())
+  ->setKey('transaction_123')
+  ->setAmount(99.99)
+  ->setAction('sale');
+
+$partnero->transactions()->create($transaction, $customer);
+```
+
+<a name="delete-transcation"></a>
+### Delete transaction
+
+```php
+use Partnero\Partnero;
+
+$partnero = new Partnero('api_key');
+
+$partnero->transactions()->delete('transaction_123');
+```
+
+<a name="support-and-feedback"></a>
 # Support and Feedback
 
 In case you find any bugs, submit an issue directly here in GitHub.
 
-If you have any troubles using our API or SDK free to contact our support by email [[email protected]](mailto:[email protected])
+If you have any troubles using our API or SDK feel free to contact our support by email [[email protected]](mailto:[email protected])
 
 The official documentation is at [https://developers.partnero.com](https://developers.partnero.com)