From d87249aa46708a07d41b5d43f443ab5c814d1f61 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:08:03 +0100
Subject: [PATCH 01/19] initial commit

---
 AfricasTalkingGateway.php | 626 ++++++++++++++++++++++++++++++++++++++
 index.php                 |  29 ++
 2 files changed, 655 insertions(+)
 create mode 100644 AfricasTalkingGateway.php
 create mode 100644 index.php

diff --git a/AfricasTalkingGateway.php b/AfricasTalkingGateway.php
new file mode 100644
index 0000000..ddf7efa
--- /dev/null
+++ b/AfricasTalkingGateway.php
@@ -0,0 +1,626 @@
+<?php
+
+/*
+
+  # COPYRIGHT (C) 2014 AFRICASTALKING LTD <www.africastalking.com>                                                   
+ 
+  AFRICAStALKING SMS GATEWAY CLASS IS A FREE SOFTWARE IE. CAN BE MODIFIED AND/OR REDISTRIBUTED                        
+  UNDER THE TERMS OF GNU GENERAL PUBLIC LICENCES AS PUBLISHED BY THE                                                 
+  FREE SOFTWARE FOUNDATION VERSION 3 OR ANY LATER VERSION                                                            
+ 
+  THE CLASS IS DISTRIBUTED ON 'AS IS' BASIS WITHOUT ANY WARRANTY, INCLUDING BUT NOT LIMITED TO                       
+  THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.                     
+  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,            
+  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE       
+  OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ 
+*/
+
+class AfricasTalkingGatewayException extends Exception  {}
+
+class AfricasTalkingGateway
+{
+  protected $_username;
+  protected $_apiKey;
+  
+  protected $_requestBody;
+  protected $_requestUrl;
+  
+  protected $_responseBody;
+  protected $_responseInfo;
+    
+  //Turn this on if you run into problems. It will print the raw HTTP response from our server
+  const Debug             = false;
+  
+  const HTTP_CODE_OK      = 200;
+  const HTTP_CODE_CREATED = 201;
+  
+  public function __construct($username_, $apiKey_)
+  {
+    $this->_username     = $username_;
+    $this->_apiKey       = $apiKey_;
+
+    if ($username_ === 'sandbox') {
+      $this->_environment  = 'sandbox';
+    } else {
+      $this->_environment  = 'production';
+    }
+    
+    $this->_requestBody  = null;
+    $this->_requestUrl   = null;
+    
+    $this->_responseBody = null;
+    $this->_responseInfo = null;    
+  }
+  
+  
+  //Messaging methods
+  public function sendMessage($to_, $message_, $from_ = null, $bulkSMSMode_ = 1, Array $options_ = array())
+  {
+    if ( strlen($to_) == 0 || strlen($message_) == 0 ) {
+      throw new AfricasTalkingGatewayException('Please supply both to and message parameters');
+    }
+    
+    $params = array(
+		    'username' => $this->_username,
+		    'to'       => $to_,
+		    'message'  => $message_,
+		    );
+    
+    if ( $from_ !== null ) {
+      $params['from']        = $from_;
+      $params['bulkSMSMode'] = $bulkSMSMode_;
+    }
+    
+    //This contains a list of parameters that can be passed in $options_ parameter
+    if ( count($options_) > 0 ) {
+      $allowedKeys = array (
+			    'enqueue',
+			    'keyword',
+			    'linkId',
+			    'retryDurationInHours'
+			    );
+			    
+      //Check whether data has been passed in options_ parameter
+      foreach ( $options_ as $key => $value ) {
+	if ( in_array($key, $allowedKeys) && strlen($value) > 0 ) {
+	  $params[$key] = $value;
+	} else {
+	  throw new AfricasTalkingGatewayException("Invalid key in options array: [$key]");
+	}
+      }
+    }
+    
+    $this->_requestUrl  = $this->getSendSmsUrl();
+    $this->_requestBody = http_build_query($params, '', '&');
+    
+    $this->executePOST();
+    
+    if ( $this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED ) {
+      $responseObject = json_decode($this->_responseBody);
+      if(count($responseObject->SMSMessageData->Recipients) > 0)
+	return $responseObject->SMSMessageData->Recipients;
+	  
+      throw new AfricasTalkingGatewayException($responseObject->SMSMessageData->Message);
+    }
+    
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+
+  public function fetchMessages($lastReceivedId_)
+  {
+    $username = $this->_username;
+    $this->_requestUrl = $this->getSendSmsUrl().'?username='.$username.'&lastReceivedId='. intval($lastReceivedId_);
+    
+    $this->executeGet();
+         
+    if ( $this->_responseInfo['http_code'] == self::HTTP_CODE_OK ) {
+      $responseObject = json_decode($this->_responseBody);
+      return $responseObject->SMSMessageData->Messages;
+    }
+    
+    throw new AfricasTalkingGatewayException($this->_responseBody);    
+  }
+  
+  
+  //Subscription methods
+  public function createSubscription($phoneNumber_, $shortCode_, $keyword_, $checkoutToken_)
+  {
+  	
+    if ( strlen($phoneNumber_) == 0 || strlen($shortCode_) == 0 || strlen($keyword_) == 0 || strlen($checkoutToken_) == 0 ) {
+      throw new AfricasTalkingGatewayException('Please supply phoneNumber, shortCode, keyword and checkoutToken');
+    }
+    
+    $params = array(
+		    'username'      => $this->_username,
+		    'phoneNumber'   => $phoneNumber_,
+		    'shortCode'     => $shortCode_,
+		    'keyword'       => $keyword_,
+        'checkoutToken' => $checkoutToken_,
+		    );
+    
+    $this->_requestUrl  = $this->getSubscriptionUrl("/create");
+    $this->_requestBody = http_build_query($params, '', '&');
+    
+    $this->executePOST();
+    
+    if ( $this->_responseInfo['http_code'] != self::HTTP_CODE_CREATED )
+      throw new AfricasTalkingGatewayException($this->_responseBody);
+     
+    return json_decode($this->_responseBody);
+  }
+
+  public function deleteSubscription($phoneNumber_, $shortCode_, $keyword_)
+  {
+    if ( strlen($phoneNumber_) == 0 || strlen($shortCode_) == 0 || strlen($keyword_) == 0 ) {
+      throw new AfricasTalkingGatewayException('Please supply phoneNumber, shortCode and keyword');
+    }
+    
+    $params = array(
+		    'username'    => $this->_username,
+		    'phoneNumber' => $phoneNumber_,
+		    'shortCode'   => $shortCode_,
+		    'keyword'     => $keyword_
+		    );
+    
+    $this->_requestUrl  = $this->getSubscriptionUrl("/delete");
+    $this->_requestBody = http_build_query($params, '', '&');
+    
+    $this->executePOST();
+    
+    if ( $this->_responseInfo['http_code'] != self::HTTP_CODE_CREATED )
+      throw new AfricasTalkingGatewayException($this->_responseBody);
+     
+    return json_decode($this->_responseBody);
+     
+  }
+  
+  public function fetchPremiumSubscriptions($shortCode_, $keyword_, $lastReceivedId_ = 0)
+  {
+    $params  = '?username='.$this->_username.'&shortCode='.$shortCode_;
+    $params .= '&keyword='.$keyword_.'&lastReceivedId='.intval($lastReceivedId_);
+    $this->_requestUrl  = $this->getSubscriptionUrl($params);
+    
+    $this->executeGet();
+    
+    if ( $this->_responseInfo['http_code'] == self::HTTP_CODE_OK ) {
+      $responseObject = json_decode($this->_responseBody);
+      return $responseObject->responses;
+    }
+    
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+  
+  //Call methods
+  public function call($from_, $to_)
+  {
+    if ( strlen($from_) == 0 || strlen($to_) == 0 ) {
+      throw new AfricasTalkingGatewayException('Please supply both from and to parameters');
+    }
+    
+    $params = array(
+		    'username' => $this->_username,
+		    'from'     => $from_,
+		    'to'       => $to_
+		    );
+    
+    $this->_requestUrl  = $this->getVoiceUrl() . "/call";
+    $this->_requestBody = http_build_query($params, '', '&');
+    
+    $this->executePOST();
+     
+    if(($responseObject = json_decode($this->_responseBody)) !== null) {
+      if(strtoupper(trim($responseObject->errorMessage)) == "NONE") {
+	return $responseObject->entries;
+      }
+      throw new AfricasTalkingGatewayException($responseObject->errorMessage);
+    }
+    else
+      throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+  public function getNumQueuedCalls($phoneNumber_, $queueName = null) 
+  {  	
+    $this->_requestUrl = $this->getVoiceUrl() . "/queueStatus";
+    $params = array(
+		    "username"     => $this->_username, 
+		    "phoneNumbers" => $phoneNumber_
+		    );
+    if($queueName !== null)
+      $params['queueName'] = $queueName;
+    $this->_requestBody   = http_build_query($params, '', '&');
+    $this->executePOST();
+  	
+    if(($responseObject = json_decode($this->_responseBody)) !== null) {
+      if(strtoupper(trim($responseObject->errorMessage)) == "NONE")
+	return $responseObject->entries;
+      throw new AfricasTalkingGatewayException($responseObject->ErrorMessage);
+    }
+  		
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+		
+  public function uploadMediaFile($url_, $phoneNumber_) 
+  {
+    $params = array(
+		    "username"    => $this->_username, 
+		    "url"         => $url_,
+        "phoneNumber" => $phoneNumber_
+		    );
+  	             
+    $this->_requestBody = http_build_query($params, '', '&');
+    $this->_requestUrl  = $this->getVoiceUrl() . "/mediaUpload";
+  	
+    $this->executePOST();
+  }
+  
+  
+  //Airtime method
+  public function sendAirtime($recipients) 
+  {
+    $params = array(
+		    "username"    => $this->_username, 
+		    "recipients"  => $recipients
+		    );
+    $this->_requestUrl  = $this->getAirtimeUrl("/send");
+    $this->_requestBody = http_build_query($params, '', '&');
+  	
+    $this->executePOST();
+  	
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $responseObject = json_decode($this->_responseBody);
+      if(count($responseObject->responses) > 0)
+	return $responseObject->responses;
+  			
+      throw new AfricasTalkingGatewayException($responseObject->errorMessage);
+    }
+  	
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+  // Payments
+  public function bankPaymentCheckoutCharge($productName_,
+					    $bankAccount_,
+					    $currencyCode_,
+					    $amount_,
+					    $narration_,
+					    $metadata_) {
+    $this->_requestBody = json_encode(array("username"     => $this->_username,
+					    "productName"  => $productName_,
+					    "bankAccount"  => $bankAccount_,
+					    "currencyCode" => $currencyCode_,
+					    "amount"       => $amount_,
+					    "narration"    => $narration_,
+					    "metadata"     => $metadata_));
+    $this->_requestUrl  = $this->getBankPaymentCheckoutChargeUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "PendingValidation") return $response->transactionId;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+  public function bankPaymentCheckoutValidation($transactionId_,
+						$otp_) {
+    $this->_requestBody = json_encode(array("username"      => $this->_username,
+					    "transactionId" => $transactionId_,
+					    "otp"           => $otp_));
+    
+    $this->_requestUrl  = $this->getBankPaymentCheckoutValidationUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "Success") return;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+
+  }
+
+  public function bankPaymentTransfer($productName_,
+				      $recipients_) {
+    $this->_requestBody = json_encode(array("username"    => $this->_username,
+					    "productName" => $productName_,
+					    "recipients"  => $recipients_));
+    $this->_requestUrl  = $this->getBankPaymentTransferUrl();
+    
+    $this->executeJsonPOST();
+
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "Success") return $response->transactionId;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+
+  public function cardPaymentCheckoutCharge($productName_,
+					    $paymentCard_,
+					    $currencyCode_,
+					    $amount_,
+					    $narration_,
+					    $metadata_) {
+    
+    $this->_requestBody = json_encode(array("username"     => $this->_username,
+					    "productName"  => $productName_,
+					    "paymentCard"  => $paymentCard_,
+					    "currencyCode" => $currencyCode_,
+					    "amount"       => $amount_,
+					    "narration"    => $narration_,
+					    "metadata"     => $metadata_));
+    $this->_requestUrl  = $this->getCardPaymentCheckoutChargeUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "PendingValidation") return $response->transactionId;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+  public function cardPaymentCheckoutChargeWithToken($productName_,
+						     $checkoutToken_,
+						     $currencyCode_,
+						     $amount_,
+						     $narration_,
+						     $metadata_) {
+    $this->_requestBody = json_encode(array("username"      => $this->_username,
+					    "productName"   => $productName_,
+					    "checkoutToken" => $checkoutToken_,
+					    "currencyCode"  => $currencyCode_,
+					    "amount"        => $amount_,
+					    "narration"     => $narration_,
+					    "metadata"      => $metadata_));
+    $this->_requestUrl  = $this->getCardPaymentCheckoutChargeUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "Success") return $response->transactionId;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+  public function cardPaymentCheckoutValidation($transactionId_,
+						$otp_) {
+    $this->_requestBody = json_encode(array("username"      => $this->_username,
+					    "transactionId" => $transactionId_,
+					    "otp"           => $otp_));
+    
+    $this->_requestUrl  = $this->getCardPaymentCheckoutValidationUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "Success") return $response->checkoutToken;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+
+  }
+
+  
+  public function initiateMobilePaymentCheckout($productName_,
+						$phoneNumber_,
+						$currencyCode_,
+						$amount_,
+						$metadata_) {
+    $this->_requestBody = json_encode(array("username"     => $this->_username,
+					    "productName"  => $productName_,
+					    "phoneNumber"  => $phoneNumber_,
+					    "currencyCode" => $currencyCode_,
+					    "amount"       => $amount_,
+					    "metadata"     => $metadata_));
+    $this->_requestUrl  = $this->getMobilePaymentCheckoutUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      if ( $response->status == "PendingConfirmation") return $response->transactionId;
+      else throw new AfricasTalkingGatewayException($response->description);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+  public function mobilePaymentB2CRequest($productName_,
+					  $recipients_) {
+    $this->_requestBody = json_encode(array("username"     => $this->_username,
+					    "productName"  => $productName_,
+					    "recipients"   => $recipients_));
+    $this->_requestUrl  = $this->getMobilePaymentB2CUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      $entries  = $response->entries;
+      if (count($entries) > 0) return  $entries;      
+      else throw new AfricasTalkingGatewayException($response->errorMessage);
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+
+  public function mobilePaymentB2BRequest($productName_, $providerData_, $currencyCode_, $amount_, $metadata_) {
+		if(!isset($providerData_['provider']) || strlen($providerData_['provider']) == 0)
+			throw new AfricasTalkingGatewayException("Missing field provider");
+		
+		if(!isset($providerData_['destinationChannel']) || strlen($providerData_['destinationChannel']) == 0)
+			throw new AfricasTalkingGatewayException("Missing field destinationChannel");
+
+    if(!isset($providerData_['destinationAccount']) || strlen($providerData_['destinationAccount']) == 0)
+      throw new AfricasTalkingGatewayException("Missing field destinationAccount");
+		
+		if(!isset($providerData_['transferType']) || strlen($providerData_['transferType']) == 0)
+			throw new AfricasTalkingGatewayException("Missing field transferType");
+		
+		$params = array("username" => $this->_username,
+										"productName"  => $productName_,
+										"currencyCode" => $currencyCode_,
+										"amount"=>$amount_,
+										'provider' => $providerData_['provider'],
+										'destinationChannel' => $providerData_['destinationChannel'],
+                    'destinationAccount' => $providerData_['destinationAccount'],
+										'transferType' => $providerData_['transferType'],
+										'metadata' => $metadata_);
+		
+    $this->_requestBody = json_encode($params);
+    $this->_requestUrl  = $this->getMobilePaymentB2BUrl();
+    
+    $this->executeJsonPOST();
+    if($this->_responseInfo['http_code'] == self::HTTP_CODE_CREATED) {
+      $response = json_decode($this->_responseBody);
+      return $response;
+    }
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+  //User info method
+  public function getUserData()
+  {
+    $username = $this->_username;
+    $this->_requestUrl = $this->getUserDataUrl('?username='.$username);
+    $this->executeGet();
+    
+    if ( $this->_responseInfo['http_code'] == self::HTTP_CODE_OK ) {
+      $responseObject = json_decode($this->_responseBody);
+      return $responseObject->UserData;
+    }
+    	
+    throw new AfricasTalkingGatewayException($this->_responseBody);
+  }
+  
+  private function executeGet ()
+  {
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_HTTPHEADER, array ('Accept: application/json',
+							 'apikey: ' . $this->_apiKey));
+    $this->doExecute($ch);
+  }
+  
+  private function executePost ()
+  {
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_POSTFIELDS, $this->_requestBody);
+    curl_setopt($ch, CURLOPT_POST, 1);
+    curl_setopt($ch, CURLOPT_HTTPHEADER, array ('Accept: application/json',
+							 'apikey: ' . $this->_apiKey));
+    
+    $this->doExecute($ch);
+  }
+  
+  private function executeJsonPost ()
+  {
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  
+    curl_setopt($ch, CURLOPT_POSTFIELDS, $this->_requestBody);
+    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json',
+					       'Content-Length: ' . strlen($this->_requestBody),
+					       'apikey: ' . $this->_apiKey));
+    $this->doExecute($ch);
+  }
+  
+  private function doExecute (&$curlHandle_)
+  {
+    try {
+	   	
+      $this->setCurlOpts($curlHandle_);
+      $responseBody = curl_exec($curlHandle_);
+			    
+      if ( self::Debug ) {
+	echo "Full response: ". print_r($responseBody, true)."\n";
+      }
+			    
+      $this->_responseInfo = curl_getinfo($curlHandle_);
+			    
+      $this->_responseBody = $responseBody;
+      curl_close($curlHandle_);
+    }
+	   
+    catch(Exeption $e) {
+      curl_close($curlHandle_);
+      throw $e;
+    }
+  }
+  
+  private function setCurlOpts (&$curlHandle_)
+  {
+    curl_setopt($curlHandle_, CURLOPT_TIMEOUT, 60);
+    curl_setopt($curlHandle_, CURLOPT_SSL_VERIFYPEER, FALSE);
+    curl_setopt($curlHandle_, CURLOPT_URL, $this->_requestUrl);
+    curl_setopt($curlHandle_, CURLOPT_RETURNTRANSFER, true);
+  }
+
+  private function getApiHost() {
+    return ($this->_environment == 'sandbox') ? 'https://api.sandbox.africastalking.com' : 'https://api.africastalking.com';
+  }
+
+  private function getPaymentHost() {
+    return ($this->_environment == 'sandbox') ? 'https://payments.sandbox.africastalking.com' : 'https://payments.africastalking.com';
+  }
+
+  private function getVoiceHost() {
+    return ($this->_environment == 'sandbox') ? 'https://voice.sandbox.africastalking.com' : 'https://voice.africastalking.com';
+  }
+  
+  private function getSendSmsUrl($extension_ = "") {
+    return $this->getApiHost().'/version1/messaging'.$extension_;
+  }
+    
+  private function getVoiceUrl() {
+    return $this->getVoiceHost();
+  }
+  
+  private function getUserDataUrl($extension_) {
+    return $this->getApiHost().'/version1/user'.$extension_;
+  }
+  
+  private function getSubscriptionUrl($extension_) {
+    return $this->getApiHost().'/version1/subscription'.$extension_;
+  }
+  
+  private function getAirtimeUrl($extension_) {
+    return $this->getApiHost().'/version1/airtime'.$extension_;
+  }
+
+  private function getBankPaymentCheckoutChargeUrl() {
+    return $this->getPaymentHost().'/bank/checkout/charge';
+  }
+
+  private function getBankPaymentCheckoutValidationUrl() {
+    return $this->getPaymentHost().'/bank/checkout/validate';
+  }
+
+  private function getBankPaymentTransferUrl() {
+    return $this->getPaymentHost().'/bank/transfer';
+  }
+
+  private function getCardPaymentCheckoutChargeUrl() {
+    return $this->getPaymentHost().'/card/checkout/charge';
+  }
+  
+  private function getCardPaymentCheckoutValidationUrl() {
+    return $this->getPaymentHost().'/card/checkout/validate';
+  }
+  
+  private function getMobilePaymentCheckoutUrl() {
+    return $this->getPaymentHost().'/mobile/checkout/request';
+  }
+
+  private function getMobilePaymentB2CUrl() {
+    return $this->getPaymentHost().'/mobile/b2c/request';
+  }
+
+  private function getMobilePaymentB2BUrl() {
+    return $this->getPaymentHost().'/mobile/b2b/request';
+  }
+}
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..10e62c4
--- /dev/null
+++ b/index.php
@@ -0,0 +1,29 @@
+<?php
+require_once 'AfricasTalkingGateway.php';
+
+
+$username = "sandbox";
+$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
+$recipient = "+2347031362606";
+
+$message = "I am a fisherman. I sleep all day and work all night!";
+
+$from = "6996";
+
+$gateway = new AfricasTalkingGateway($username, $apikey);
+
+try
+{
+
+    $results = $gateway->sendMessage($recipient, $message, $from);
+    foreach ($results as $result) {
+        if ($result->status === "Success") {
+            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
+        }
+
+    }
+} catch (AfricasTalkingGatewayException $e) {
+  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
+
+  
+}

From 2674fdcd3b4ee644c50f3ab63a705a475befb80e Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:11:25 +0100
Subject: [PATCH 02/19] add composer.json file

---
 composer.json | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 composer.json

diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/composer.json
@@ -0,0 +1 @@
+{}

From 62c971838fabea2cd0805946c049ed132b917b6a Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:15:32 +0100
Subject: [PATCH 03/19] initalize composer

---
 .gitignore    |  1 +
 composer.json | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..57872d0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/vendor/
diff --git a/composer.json b/composer.json
index 0967ef4..f192fe7 100644
--- a/composer.json
+++ b/composer.json
@@ -1 +1,12 @@
-{}
+{
+    "name": "codearcher/code-challenge-uni-ben1606",
+    "require": {
+        "ext-curl": "^7.2"
+    },
+    "authors": [
+        {
+            "name": "Brian Iyoha",
+            "email": "brian98ehis@gmail.com"
+        }
+    ]
+}

From eee7e2ad5207ff32510e0779e9a14eb599666ac4 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:35:21 +0100
Subject: [PATCH 04/19] setting up heroku

---
 index.php | 29 -----------------------------
 1 file changed, 29 deletions(-)
 delete mode 100644 index.php

diff --git a/index.php b/index.php
deleted file mode 100644
index 10e62c4..0000000
--- a/index.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-require_once 'AfricasTalkingGateway.php';
-
-
-$username = "sandbox";
-$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
-$recipient = "+2347031362606";
-
-$message = "I am a fisherman. I sleep all day and work all night!";
-
-$from = "6996";
-
-$gateway = new AfricasTalkingGateway($username, $apikey);
-
-try
-{
-
-    $results = $gateway->sendMessage($recipient, $message, $from);
-    foreach ($results as $result) {
-        if ($result->status === "Success") {
-            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
-        }
-
-    }
-} catch (AfricasTalkingGatewayException $e) {
-  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
-
-  
-}

From f1fff32112157662ef295e5ea8b722b82cf62b90 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:35:37 +0100
Subject: [PATCH 05/19] setting up heroku

---
 public/index.php | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 public/index.php

diff --git a/public/index.php b/public/index.php
new file mode 100644
index 0000000..10e62c4
--- /dev/null
+++ b/public/index.php
@@ -0,0 +1,29 @@
+<?php
+require_once 'AfricasTalkingGateway.php';
+
+
+$username = "sandbox";
+$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
+$recipient = "+2347031362606";
+
+$message = "I am a fisherman. I sleep all day and work all night!";
+
+$from = "6996";
+
+$gateway = new AfricasTalkingGateway($username, $apikey);
+
+try
+{
+
+    $results = $gateway->sendMessage($recipient, $message, $from);
+    foreach ($results as $result) {
+        if ($result->status === "Success") {
+            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
+        }
+
+    }
+} catch (AfricasTalkingGatewayException $e) {
+  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
+
+  
+}

From 947c8c1261327dbabefd048fa8308c2f0380eafa Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:36:35 +0100
Subject: [PATCH 06/19] Revert "initalize composer"

This reverts commit 62c971838fabea2cd0805946c049ed132b917b6a.
---
 .gitignore    |  1 -
 composer.json | 13 +------------
 2 files changed, 1 insertion(+), 13 deletions(-)
 delete mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 57872d0..0000000
--- a/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/vendor/
diff --git a/composer.json b/composer.json
index f192fe7..0967ef4 100644
--- a/composer.json
+++ b/composer.json
@@ -1,12 +1 @@
-{
-    "name": "codearcher/code-challenge-uni-ben1606",
-    "require": {
-        "ext-curl": "^7.2"
-    },
-    "authors": [
-        {
-            "name": "Brian Iyoha",
-            "email": "brian98ehis@gmail.com"
-        }
-    ]
-}
+{}

From 410ee055d51e424d454217ab244298aac31a044a Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:37:22 +0100
Subject: [PATCH 07/19] Revert "setting up heroku"

This reverts commit eee7e2ad5207ff32510e0779e9a14eb599666ac4.
---
 index.php | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 index.php

diff --git a/index.php b/index.php
new file mode 100644
index 0000000..10e62c4
--- /dev/null
+++ b/index.php
@@ -0,0 +1,29 @@
+<?php
+require_once 'AfricasTalkingGateway.php';
+
+
+$username = "sandbox";
+$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
+$recipient = "+2347031362606";
+
+$message = "I am a fisherman. I sleep all day and work all night!";
+
+$from = "6996";
+
+$gateway = new AfricasTalkingGateway($username, $apikey);
+
+try
+{
+
+    $results = $gateway->sendMessage($recipient, $message, $from);
+    foreach ($results as $result) {
+        if ($result->status === "Success") {
+            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
+        }
+
+    }
+} catch (AfricasTalkingGatewayException $e) {
+  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
+
+  
+}

From 7d462a54f98bcec412b2b10548d2e577b80c9083 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:37:31 +0100
Subject: [PATCH 08/19] Revert "setting up heroku"

This reverts commit f1fff32112157662ef295e5ea8b722b82cf62b90.
---
 public/index.php | 29 -----------------------------
 1 file changed, 29 deletions(-)
 delete mode 100644 public/index.php

diff --git a/public/index.php b/public/index.php
deleted file mode 100644
index 10e62c4..0000000
--- a/public/index.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-require_once 'AfricasTalkingGateway.php';
-
-
-$username = "sandbox";
-$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
-$recipient = "+2347031362606";
-
-$message = "I am a fisherman. I sleep all day and work all night!";
-
-$from = "6996";
-
-$gateway = new AfricasTalkingGateway($username, $apikey);
-
-try
-{
-
-    $results = $gateway->sendMessage($recipient, $message, $from);
-    foreach ($results as $result) {
-        if ($result->status === "Success") {
-            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
-        }
-
-    }
-} catch (AfricasTalkingGatewayException $e) {
-  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
-
-  
-}

From 9fda224ad9a4836042db960e1811ca1129a94438 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 17:55:41 +0100
Subject: [PATCH 09/19] check for proper request method

---
 index.php | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/index.php b/index.php
index 10e62c4..0cad7f1 100644
--- a/index.php
+++ b/index.php
@@ -1,29 +1,36 @@
 <?php
-require_once 'AfricasTalkingGateway.php';
+$request = $_SERVER['REQUEST_METHOD'];
 
+if ($request === 'GET') {
+    return print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
+} else if ($request === 'POST') {
 
-$username = "sandbox";
-$apikey = "e213988d4ac0a2a16604c7c796b64d613ad5269a13c1c8074c9457060d9b0a94";
-$recipient = "+2347031362606";
+    require_once 'AfricasTalkingGateway.php';
+    $to = $_POST['to'];
+    $username = getenv('AT_USERNAME');
+    $apikey = getenv('AT_APIKEY');
 
-$message = "I am a fisherman. I sleep all day and work all night!";
+    $recipient = trim($to);
 
-$from = "6996";
+    $message = "I am a fisherman. I sleep all day and work all night!";
 
-$gateway = new AfricasTalkingGateway($username, $apikey);
+    $from = "6996";
 
-try
-{
+    $gateway = new AfricasTalkingGateway($username, $apikey);
+
+    try
+    {
+
+        $results = $gateway->sendMessage($recipient, $message, $from);
+        foreach ($results as $result) {
+            if ($result->status === "Success") {
+                echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
+            }
 
-    $results = $gateway->sendMessage($recipient, $message, $from);
-    foreach ($results as $result) {
-        if ($result->status === "Success") {
-            echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
         }
+    } catch (AfricasTalkingGatewayException $e) {
+        echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:" . $e->getMessage() . "</h5>";
 
     }
-} catch (AfricasTalkingGatewayException $e) {
-  echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:".  $e->getMessage()."</h5>";
 
-  
 }

From ae47ca287efe6bf27ae8a4a9eb939b8bd727b729 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 18:43:54 +0100
Subject: [PATCH 10/19] updated to oop

---
 index.php | 63 +++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 43 insertions(+), 20 deletions(-)

diff --git a/index.php b/index.php
index 0cad7f1..0678e1d 100644
--- a/index.php
+++ b/index.php
@@ -1,36 +1,59 @@
 <?php
-$request = $_SERVER['REQUEST_METHOD'];
 
-if ($request === 'GET') {
-    return print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
-} else if ($request === 'POST') {
+class TwoWaySms
+{
+    public function sendSms()
+    {
+        require_once 'AfricasTalkingGateway.php';
+        $rawData = $this->retrieveJsonPostData();
 
-    require_once 'AfricasTalkingGateway.php';
-    $to = $_POST['to'];
-    $username = getenv('AT_USERNAME');
-    $apikey = getenv('AT_APIKEY');
+        $username = getenv('AT_USERNAME');
+        $apikey = getenv('AT_APIKEY');
 
-    $recipient = trim($to);
+        $recipient = trim($rawData->to);
+        
+        $message = "I am a fisherman. I sleep all day and work all night!";
 
-    $message = "I am a fisherman. I sleep all day and work all night!";
+        $from = "6996";
 
-    $from = "6996";
+        $gateway = new AfricasTalkingGateway($username, $apikey);
 
-    $gateway = new AfricasTalkingGateway($username, $apikey);
+        try
+        {
 
-    try
-    {
+            $results = $gateway->sendMessage($recipient, $message, $from);
+            foreach ($results as $result) {
+                if ($result->status === "Success") {
+                    echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
+                }
 
-        $results = $gateway->sendMessage($recipient, $message, $from);
-        foreach ($results as $result) {
-            if ($result->status === "Success") {
-                echo "<h3> Message succesfully sent to $result->number</h3><h3>Cost: $result->cost</h3>";
             }
+        } catch (AfricasTalkingGatewayException $e) {
+            echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:" . $e->getMessage() . "</h5>";
 
         }
-    } catch (AfricasTalkingGatewayException $e) {
-        echo "<h3> Message failed to send to  $recipient. See below message for error details or try again</h3><h5>Error:" . $e->getMessage() . "</h5>";
+    }
 
+    /**
+     * Returns the JSON encoded POST data, if any, as an object.
+     *
+     * @return Object|null
+     */
+    private function retrieveJsonPostData()
+    {
+        // get the raw POST data
+        $rawData = file_get_contents("php://input");
+
+        // this returns null if not valid json
+        return json_decode($rawData);
     }
+}
+
+$request = $_SERVER['REQUEST_METHOD'];
+if ($request === 'GET') {
+    print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
+} else if ($request === 'POST') {
+    $sms = new TwoWaySms();
 
+    $sms->sendSms();
 }

From 907fd622031e191005482408f48c46111f175386 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:02:39 +0100
Subject: [PATCH 11/19] [WIP] bug fix

---
 index.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/index.php b/index.php
index 0678e1d..17ca8b2 100644
--- a/index.php
+++ b/index.php
@@ -4,14 +4,17 @@ class TwoWaySms
 {
     public function sendSms()
     {
+        error_log("hello, this is a test!");
+
         require_once 'AfricasTalkingGateway.php';
         $rawData = $this->retrieveJsonPostData();
+        error_log("RAW DATA $rawData");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');
 
         $recipient = trim($rawData->to);
-        
+
         $message = "I am a fisherman. I sleep all day and work all night!";
 
         $from = "6996";
@@ -50,6 +53,8 @@ private function retrieveJsonPostData()
 }
 
 $request = $_SERVER['REQUEST_METHOD'];
+error_log($request);
+
 if ($request === 'GET') {
     print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
 } else if ($request === 'POST') {

From 52fc99118081b7b357ac40bc51391807af3ba776 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:04:44 +0100
Subject: [PATCH 12/19] [WIP] bug fix

---
 index.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/index.php b/index.php
index 17ca8b2..52fb4da 100644
--- a/index.php
+++ b/index.php
@@ -9,6 +9,8 @@ public function sendSms()
         require_once 'AfricasTalkingGateway.php';
         $rawData = $this->retrieveJsonPostData();
         error_log("RAW DATA $rawData");
+        error_log("REQUEST $_REQUEST");
+        error_log("REQUEST $_POST");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');

From c77e39512908e77cebae65f887779c08fd5f3f3c Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:07:42 +0100
Subject: [PATCH 13/19] [WIP] bug fix

---
 index.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index 52fb4da..1fe742d 100644
--- a/index.php
+++ b/index.php
@@ -9,8 +9,9 @@ public function sendSms()
         require_once 'AfricasTalkingGateway.php';
         $rawData = $this->retrieveJsonPostData();
         error_log("RAW DATA $rawData");
-        error_log("REQUEST $_REQUEST");
-        error_log("REQUEST $_POST");
+        error_log("REQUEST" .var_dump($_REQUEST)."");
+        error_log("POST". var_dump($_POST)."");
+        error_log("GET". var_dump($_GET)."");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');

From b69b4be5c48acde53397d22e1badfcf30739ab84 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:10:42 +0100
Subject: [PATCH 14/19] [WIP] bug fix

---
 index.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/index.php b/index.php
index 1fe742d..b907e15 100644
--- a/index.php
+++ b/index.php
@@ -8,15 +8,15 @@ public function sendSms()
 
         require_once 'AfricasTalkingGateway.php';
         $rawData = $this->retrieveJsonPostData();
-        error_log("RAW DATA $rawData");
-        error_log("REQUEST" .var_dump($_REQUEST)."");
+        error_log($rawData);
+        error_log("REQUEST" .print_r($_REQUEST)."");
         error_log("POST". var_dump($_POST)."");
         error_log("GET". var_dump($_GET)."");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');
 
-        $recipient = trim($rawData->to);
+        $recipient = trim($_POST['to']);
 
         $message = "I am a fisherman. I sleep all day and work all night!";
 

From aa2ea4dad43be2443ce91f00d2a6f9e22958be31 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:20:19 +0100
Subject: [PATCH 15/19] [WIP] bug fix

---
 index.php | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/index.php b/index.php
index b907e15..f8deb26 100644
--- a/index.php
+++ b/index.php
@@ -8,10 +8,9 @@ public function sendSms()
 
         require_once 'AfricasTalkingGateway.php';
         $rawData = $this->retrieveJsonPostData();
-        error_log($rawData);
-        error_log("REQUEST" .print_r($_REQUEST)."");
-        error_log("POST". var_dump($_POST)."");
-        error_log("GET". var_dump($_GET)."");
+        error_log(print_r($rawData,true));
+        error_log("REQUEST" .print_r($_REQUEST,true)."");
+        error_log("POST". print_r($_POST,true)."");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');

From bd2252330250cd48167dd9f10d79cd6367c7f499 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:29:01 +0100
Subject: [PATCH 16/19] [WIP] possible  bug fix

---
 index.php | 25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

diff --git a/index.php b/index.php
index f8deb26..082f267 100644
--- a/index.php
+++ b/index.php
@@ -2,7 +2,7 @@
 
 class TwoWaySms
 {
-    public function sendSms()
+    public function sendSms($to)
     {
         error_log("hello, this is a test!");
 
@@ -15,7 +15,7 @@ public function sendSms()
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');
 
-        $recipient = trim($_POST['to']);
+        $recipient = trim($to);
 
         $message = "I am a fisherman. I sleep all day and work all night!";
 
@@ -38,20 +38,6 @@ public function sendSms()
 
         }
     }
-
-    /**
-     * Returns the JSON encoded POST data, if any, as an object.
-     *
-     * @return Object|null
-     */
-    private function retrieveJsonPostData()
-    {
-        // get the raw POST data
-        $rawData = file_get_contents("php://input");
-
-        // this returns null if not valid json
-        return json_decode($rawData);
-    }
 }
 
 $request = $_SERVER['REQUEST_METHOD'];
@@ -61,6 +47,9 @@ private function retrieveJsonPostData()
     print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
 } else if ($request === 'POST') {
     $sms = new TwoWaySms();
-
-    $sms->sendSms();
+    $from = $_POST['from'];
+    $sms->sendSms($from);
 }
+
+
+

From 85c1dbbba6a9a43ec713b1cea5e0133328bfa56e Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:31:56 +0100
Subject: [PATCH 17/19] [WIP: bug fix] removed undefined method

---
 index.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.php b/index.php
index 082f267..b91dfff 100644
--- a/index.php
+++ b/index.php
@@ -7,7 +7,7 @@ public function sendSms($to)
         error_log("hello, this is a test!");
 
         require_once 'AfricasTalkingGateway.php';
-        $rawData = $this->retrieveJsonPostData();
+       
         error_log(print_r($rawData,true));
         error_log("REQUEST" .print_r($_REQUEST,true)."");
         error_log("POST". print_r($_POST,true)."");

From f9c3ee2f57ce81dcdcca8b6dcbc81e6d1e51dbe6 Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:39:21 +0100
Subject: [PATCH 18/19] code clean up

---
 index.php | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/index.php b/index.php
index b91dfff..d1320ab 100644
--- a/index.php
+++ b/index.php
@@ -2,15 +2,14 @@
 
 class TwoWaySms
 {
+
+    /**
+     * send sms response back to the sender
+     * @param number $to Phone number to send a response to
+     */
     public function sendSms($to)
     {
-        error_log("hello, this is a test!");
-
         require_once 'AfricasTalkingGateway.php';
-       
-        error_log(print_r($rawData,true));
-        error_log("REQUEST" .print_r($_REQUEST,true)."");
-        error_log("POST". print_r($_POST,true)."");
 
         $username = getenv('AT_USERNAME');
         $apikey = getenv('AT_APIKEY');
@@ -41,7 +40,6 @@ public function sendSms($to)
 }
 
 $request = $_SERVER['REQUEST_METHOD'];
-error_log($request);
 
 if ($request === 'GET') {
     print("<h3>This is a simple implementation of a two-way sms code challenge</h3>");
@@ -50,6 +48,3 @@ public function sendSms($to)
     $from = $_POST['from'];
     $sms->sendSms($from);
 }
-
-
-

From c72626af96746a2b054aa0f399dbee5cb7d192ca Mon Sep 17 00:00:00 2001
From: Brian Iyoha <brian98ehis@gmail.com>
Date: Fri, 15 Jun 2018 22:53:26 +0100
Subject: [PATCH 19/19] update readme

---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index e82b086..2000b65 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,14 @@ You can participate on as many challenges as you wish:
 ## Code Challenge Bounty:
   - Airtime and Swag for the first 30 successful participants
 
+## Usage:
+- Open the [AfricasTalking Sandbox Simulator](https://simulator.africastalking.com:1517/).
+- Enter a test phone number on the text field provided.
+- Click on launch button to open a simulator
+- Select the SMS option
+- Create and send a message of any context to 6996
+- You will receive a response shortly after, if your message was sent succesfully
+
 ## Task
 In this code challenge you should create a 2-way SMS app that can be accessed on the Sandbox. The 2-Way SMS App should allow users to send an SMS from their simulator to your short code, and get a simple reply.