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README.md

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+# Cloudfront Signer Service for PHP
+
+[![Latest Stable Version](https://img.shields.io/packagist/v/rc4347/cloudfront-signer.svg)](https://packagist.org/packages/rc4347/cloudfront-signer)
+[![Total Downloads](https://img.shields.io/packagist/dt/rc4347/cloudfront-signer.svg)](https://packagist.org/packages/rc4347/cloudfront-signer)
+
+This is a simple [PHP](https://php.net/) service for making it easy include the official
+[AWS SDK for PHP](https://github.com/aws/aws-sdk-php) in your PHP applications.
+
+It's helps you to sign your files or resources.
+
+Jump To:
+* [Getting Started](_#Getting-Started_)
+* [More Resources](_#Resources_)
+
+## Getting Started
+
+### Installation
+The PHP Service can be installed via [Composer](http://getcomposer.org) by requiring the
+`rc4347/cloudfront-signer` package in your project's `composer.json`.
+
+```json
+{
+    "require": {
+        "rc4347/cloudfront-signer": "^0.0.2"
+    }
+}
+```
+
+## Usage
+```php
+use RC4347\CloudFrontSigner\credentials\AccessConfig;
+use RC4347\CloudFrontSigner\credentials\ClientConfig;
+use RC4347\CloudFrontSigner\credentials\ExpireConfig;
+use RC4347\CloudFrontSigner\SignedUrlService;
+
+# configuration
+$client = new ClientConfig('latest', 'default', '<YOUR_S3_REGION>');
+$expire = time() + 300; # returns 5 minutes
+$access = new AccessConfig('<YOUR_PRIVATE_KEY>', '<YOUR_S3_KEY_PAIR_ID>'); # private key can get file or string 
+$resourceKey = 'https://<YOUR_ID>.cloudfront.net/example/example.png';
+$config = new ExpireConfig($resourceKey, $expire);
+# Execution
+/**
+* @returns string "https://<YOUR_ID>.cloudfront.net/example/example.png?Expires=<EXPIRES>&Signature=<SIGNATURE>&Key-Pair-Id=<YOUR_S3_KEY_PAIR_ID>"
+ */
+$urlService = new SignedUrlService($config, $client, $access);
+return $urlService->run();
+/**
+ * if policy param is empty it will be get default policy.
+* @returns array|string [
+        "CloudFront-Policy": <GENERATED_POLICY>,
+        "CloudFront-Signature": <SIGNATURE>,
+        "CloudFront-Key-Pair-Id": <YOUR_S3_KEY_PAIR_ID>
+    ]
+ */
+$policy = <<<POLICY
+{
+    "Statement": [
+        {
+            "Resource": "{$this->config->resourceKey}",
+            "Condition": {
+                "DateLessThan": {"AWS:EpochTime": {$this->config->expires}}
+            }
+        }
+    ]
+}
+POLICY;
+
+$cookieService = new SignedCookieService($config, $client, $access, $policy) # policy is optional
+return $cookieService->run();
+```
+
+## Resources
+For more information:  
+* [AWS SDK for PHP on Github](http://github.com/aws/aws-sdk-php/)
+* [AWS SDK for PHP website](http://aws.amazon.com/sdkforphp/)