Refactored to use http adapter instead of guzzle directly

7 files changed, 608 insertions, 338 deletions

diff --git a/.travis.yml b/.travis.yml
index 5f42efd..cfabab0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,8 @@
 language: php
 php:
 - '5.5'
-- '5.4'
+- '5.6'
+- '5.7'
 install:
 - composer install
 script: phpunit --bootstrap test/unit/bootstrap.php ./test/unit
diff --git a/composer.json b/composer.json
index 096a94b..3917db1 100644
--- a/composer.json
+++ b/composer.json
@@ -2,6 +2,7 @@
     "name": "sparkpost/php-sparkpost",
     "description": "SDK for interfacing with SparkPost APIs",
     "license": "Apache 2.0",
+    "version": "0.2.0",
     "authors": [
         {
             "name": "Message Systems, Inc."
@@ -9,11 +10,12 @@
     ],
     "minimum-stability": "stable",
     "require": {
-    	"php": ">=5.3.0",
-        "guzzlehttp/guzzle": "3.8.1"
+    	"php": ">=5.5.0",
+      "egeloen/http-adapter": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.3.*"
+        "phpunit/phpunit": "4.3.*",
+        "guzzlehttp/guzzle": "6.*"
     },
     "autoload": {
     	"psr-4": {
diff --git a/composer.lock b/composer.lock
index 56e173b..e62177f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,72 +1,69 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file"
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "This file is @generated automatically"
     ],
-    "hash": "6f9c9d455eb869305157559b093a3c5d",
+    "hash": "c1b222200ff1ed0a0aa545592e856675",
+    "content-hash": "28082d79d1a6e023f128688258c25e5d",
     "packages": [
         {
-            "name": "guzzlehttp/guzzle",
-            "version": "v3.8.1",
+            "name": "egeloen/http-adapter",
+            "version": "0.8.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "4de0618a01b34aa1c8c33a3f13f396dcd3882eba"
+                "url": "https://github.com/egeloen/ivory-http-adapter.git",
+                "reference": "9641f11487ec26b24c6bbcee4f267cf62f60b855"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/4de0618a01b34aa1c8c33a3f13f396dcd3882eba",
-                "reference": "4de0618a01b34aa1c8c33a3f13f396dcd3882eba",
+                "url": "https://api.github.com/repos/egeloen/ivory-http-adapter/zipball/9641f11487ec26b24c6bbcee4f267cf62f60b855",
+                "reference": "9641f11487ec26b24c6bbcee4f267cf62f60b855",
                 "shasum": ""
             },
             "require": {
-                "ext-curl": "*",
-                "php": ">=5.3.3",
-                "symfony/event-dispatcher": ">=2.1"
-            },
-            "replace": {
-                "guzzle/batch": "self.version",
-                "guzzle/cache": "self.version",
-                "guzzle/common": "self.version",
-                "guzzle/http": "self.version",
-                "guzzle/inflection": "self.version",
-                "guzzle/iterator": "self.version",
-                "guzzle/log": "self.version",
-                "guzzle/parser": "self.version",
-                "guzzle/plugin": "self.version",
-                "guzzle/plugin-async": "self.version",
-                "guzzle/plugin-backoff": "self.version",
-                "guzzle/plugin-cache": "self.version",
-                "guzzle/plugin-cookie": "self.version",
-                "guzzle/plugin-curlauth": "self.version",
-                "guzzle/plugin-error-response": "self.version",
-                "guzzle/plugin-history": "self.version",
-                "guzzle/plugin-log": "self.version",
-                "guzzle/plugin-md5": "self.version",
-                "guzzle/plugin-mock": "self.version",
-                "guzzle/plugin-oauth": "self.version",
-                "guzzle/service": "self.version",
-                "guzzle/stream": "self.version"
+                "php": ">=5.4.8",
+                "zendframework/zend-diactoros": "^1.1"
             },
             "require-dev": {
-                "doctrine/cache": "*",
-                "monolog/monolog": "1.*",
-                "phpunit/phpunit": "3.7.*",
-                "psr/log": "1.0.*",
-                "symfony/class-loader": "*",
-                "zendframework/zend-cache": "<2.3",
-                "zendframework/zend-log": "<2.3"
+                "cakephp/cakephp": "^3.0.3",
+                "ext-curl": "*",
+                "guzzle/guzzle": "^3.9.4@dev",
+                "guzzlehttp/guzzle": "^4.1.4|^5.0|^6.0",
+                "kriswallsmith/buzz": "^0.13",
+                "nategood/httpful": "^0.2.17",
+                "phpunit/phpunit": "^4.0",
+                "phpunit/phpunit-mock-objects": "dev-matcher-verify as 2.3.x-dev",
+                "psr/log": "^1.0",
+                "react/dns": "^0.4.1",
+                "react/http-client": "^0.4",
+                "satooshi/php-coveralls": "^0.6",
+                "symfony/event-dispatcher": "^2.0",
+                "zendframework/zend-http": "^2.3.4",
+                "zendframework/zendframework1": ">=1.12.9,<=1.12.14|^1.12.16"
+            },
+            "suggest": {
+                "ext-curl": "Allows you to use the cURL adapter",
+                "ext-http": "Allows you to use the PECL adapter",
+                "guzzle/guzzle": "Allows you to use the Guzzle 3 adapter",
+                "guzzlehttp/guzzle": "Allows you to use the Guzzle 4 adapter",
+                "kriswallsmith/buzz": "Allows you to use the Buzz adapter",
+                "nategood/httpful": "Allows you to use the httpful adapter",
+                "psr/log": "Allows you to use the logger event subscriber",
+                "symfony/event-dispatcher": "Allows you to use the event lifecycle",
+                "symfony/stopwatch": "Allows you to use the stopwatch http adapter and event subscriber",
+                "zendframework/zend-http": "Allows you to use the Zend 2 adapter",
+                "zendframework/zendframework1": "Allows you to use the Zend 1 adapter"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.8-dev"
+                    "dev-master": "0.8-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Guzzle": "src/",
-                    "Guzzle\\Tests": "tests/"
+                "psr-4": {
+                    "Ivory\\HttpAdapter\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -75,65 +72,45 @@
             ],
             "authors": [
                 {
-                    "name": "Michael Dowling",
-                    "email": "mtdowling@gmail.com",
-                    "homepage": "https://github.com/mtdowling"
-                },
-                {
-                    "name": "Guzzle Community",
-                    "homepage": "https://github.com/guzzle/guzzle/contributors"
+                    "name": "Eric GELOEN",
+                    "email": "geloen.eric@gmail.com"
                 }
             ],
-            "description": "Guzzle is a PHP HTTP client library and framework for building RESTful web service clients",
-            "homepage": "http://guzzlephp.org/",
+            "description": "Issue HTTP request for PHP 5.3+.",
             "keywords": [
-                "client",
-                "curl",
-                "framework",
                 "http",
-                "http client",
-                "rest",
-                "web service"
+                "http-adapter",
+                "http-client",
+                "psr-7"
             ],
-            "time": "2014-01-28 22:29:15"
+            "time": "2015-08-12 09:35:40"
         },
         {
-            "name": "symfony/event-dispatcher",
-            "version": "v2.5.6",
-            "target-dir": "Symfony/Component/EventDispatcher",
+            "name": "psr/http-message",
+            "version": "1.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/EventDispatcher.git",
-                "reference": "804eb28dbbfba9ffdab21fe2066744906cea2212"
+                "url": "https://github.com/php-fig/http-message.git",
+                "reference": "85d63699f0dbedb190bbd4b0d2b9dc707ea4c298"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/EventDispatcher/zipball/804eb28dbbfba9ffdab21fe2066744906cea2212",
-                "reference": "804eb28dbbfba9ffdab21fe2066744906cea2212",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/85d63699f0dbedb190bbd4b0d2b9dc707ea4c298",
+                "reference": "85d63699f0dbedb190bbd4b0d2b9dc707ea4c298",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
-            },
-            "require-dev": {
-                "psr/log": "~1.0",
-                "symfony/config": "~2.0",
-                "symfony/dependency-injection": "~2.0,<2.6.0",
-                "symfony/stopwatch": "~2.2"
-            },
-            "suggest": {
-                "symfony/dependency-injection": "",
-                "symfony/http-kernel": ""
+                "php": ">=5.3.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.5-dev"
+                    "dev-master": "1.0.x-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Symfony\\Component\\EventDispatcher\\": ""
+                "psr-4": {
+                    "Psr\\Http\\Message\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -142,32 +119,85 @@
             ],
             "authors": [
                 {
-                    "name": "Symfony Community",
-                    "homepage": "http://symfony.com/contributors"
-                },
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for HTTP messages",
+            "keywords": [
+                "http",
+                "http-message",
+                "psr",
+                "psr-7",
+                "request",
+                "response"
+            ],
+            "time": "2015-05-04 20:22:00"
+        },
+        {
+            "name": "zendframework/zend-diactoros",
+            "version": "1.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-diactoros.git",
+                "reference": "e2f5c12916c74da384058d0dfbc7fbc0b03d1181"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-diactoros/zipball/e2f5c12916c74da384058d0dfbc7fbc0b03d1181",
+                "reference": "e2f5c12916c74da384058d0dfbc7fbc0b03d1181",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4",
+                "psr/http-message": "~1.0"
+            },
+            "provide": {
+                "psr/http-message-implementation": "~1.0.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.6",
+                "squizlabs/php_codesniffer": "^2.3.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev",
+                    "dev-develop": "1.1-dev"
                 }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Diactoros\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
             ],
-            "description": "Symfony EventDispatcher Component",
-            "homepage": "http://symfony.com",
-            "time": "2014-10-01 15:43:05"
+            "description": "PSR HTTP Message implementations",
+            "homepage": "https://github.com/zendframework/zend-diactoros",
+            "keywords": [
+                "http",
+                "psr",
+                "psr-7"
+            ],
+            "time": "2015-08-10 20:04:20"
         }
     ],
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.0.4",
+            "version": "1.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "f976e5de371104877ebc89bd8fecb0019ed9c119"
+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/f976e5de371104877ebc89bd8fecb0019ed9c119",
-                "reference": "f976e5de371104877ebc89bd8fecb0019ed9c119",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
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             },
             "require": {
@@ -178,7 +208,7 @@
                 "ext-pdo": "*",
                 "ext-phar": "*",
                 "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "2.0.*@ALPHA"
+                "squizlabs/php_codesniffer": "~2.0"
             },
             "type": "library",
             "extra": {
@@ -187,8 +217,8 @@
                 }
             },
             "autoload": {
-                "psr-0": {
-                    "Doctrine\\Instantiator\\": "src"
+                "psr-4": {
+                    "Doctrine\\Instantiator\\": "src/Doctrine/Instantiator/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -208,20 +238,191 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2014-10-13 12:58:55"
+            "time": "2015-06-14 21:17:01"
+        },
+        {
+            "name": "guzzlehttp/guzzle",
+            "version": "6.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/guzzle.git",
+                "reference": "66fd14b4d0b8f2389eaf37c5458608c7cb793a81"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/66fd14b4d0b8f2389eaf37c5458608c7cb793a81",
+                "reference": "66fd14b4d0b8f2389eaf37c5458608c7cb793a81",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/promises": "~1.0",
+                "guzzlehttp/psr7": "~1.1",
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "ext-curl": "*",
+                "phpunit/phpunit": "~4.0",
+                "psr/log": "~1.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "6.1-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "src/functions_include.php"
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                }
+            ],
+            "description": "Guzzle is a PHP HTTP client library",
+            "homepage": "http://guzzlephp.org/",
+            "keywords": [
+                "client",
+                "curl",
+                "framework",
+                "http",
+                "http client",
+                "rest",
+                "web service"
+            ],
+            "time": "2015-09-08 17:36:26"
+        },
+        {
+            "name": "guzzlehttp/promises",
+            "version": "1.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/promises.git",
+                "reference": "97fe7210def29451ec74923b27e552238defd75a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/promises/zipball/97fe7210def29451ec74923b27e552238defd75a",
+                "reference": "97fe7210def29451ec74923b27e552238defd75a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "GuzzleHttp\\Promise\\": "src/"
+                },
+                "files": [
+                    "src/functions_include.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                }
+            ],
+            "description": "Guzzle promises library",
+            "keywords": [
+                "promise"
+            ],
+            "time": "2015-08-15 19:37:21"
+        },
+        {
+            "name": "guzzlehttp/psr7",
+            "version": "1.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/psr7.git",
+                "reference": "4ef919b0cf3b1989523138b60163bbcb7ba1ff7e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/4ef919b0cf3b1989523138b60163bbcb7ba1ff7e",
+                "reference": "4ef919b0cf3b1989523138b60163bbcb7ba1ff7e",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.0",
+                "psr/http-message": "~1.0"
+            },
+            "provide": {
+                "psr/http-message-implementation": "1.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "GuzzleHttp\\Psr7\\": "src/"
+                },
+                "files": [
+                    "src/functions_include.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                }
+            ],
+            "description": "PSR-7 message implementation",
+            "keywords": [
+                "http",
+                "message",
+                "stream",
+                "uri"
+            ],
+            "time": "2015-08-15 19:32:36"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "2.0.11",
+            "version": "2.2.3",
             "source": {
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-                "reference": "53603b3c995f5aab6b59c8e08c3a663d2cc810b7"
+                "reference": "ef1ca6835468857944d5c3b48fa503d5554cff2f"
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-                "reference": "53603b3c995f5aab6b59c8e08c3a663d2cc810b7",
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@@ -229,12 +430,12 @@
                 "phpunit/php-file-iterator": "~1.3",
                 "phpunit/php-text-template": "~1.2",
                 "phpunit/php-token-stream": "~1.3",
-                "sebastian/environment": "~1.0",
+                "sebastian/environment": "^1.3.2",
                 "sebastian/version": "~1.0"
             },
             "require-dev": {
                 "ext-xdebug": ">=2.1.4",
-                "phpunit/phpunit": "~4.1"
+                "phpunit/phpunit": "~4"
             },
             "suggest": {
                 "ext-dom": "*",
@@ -244,7 +445,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "2.2.x-dev"
                 }
             },
             "autoload": {
@@ -253,9 +454,6 @@
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
-            "include-path": [
-                ""
-            ],
             "license": [
                 "BSD-3-Clause"
             ],
@@ -273,7 +471,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2014-08-31 06:33:04"
+            "time": "2015-09-14 06:51:16"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -322,16 +520,16 @@
         },
         {
             "name": "phpunit/php-text-template",
-            "version": "1.2.0",
+            "version": "1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-text-template.git",
-                "reference": "206dfefc0ffe9cebf65c413e3d0e809c82fbf00a"
+                "reference": "31f8b717e51d9a2afca6c9f046f5d69fc27c8686"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-text-template/zipball/206dfefc0ffe9cebf65c413e3d0e809c82fbf00a",
-                "reference": "206dfefc0ffe9cebf65c413e3d0e809c82fbf00a",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-text-template/zipball/31f8b717e51d9a2afca6c9f046f5d69fc27c8686",
+                "reference": "31f8b717e51d9a2afca6c9f046f5d69fc27c8686",
                 "shasum": ""
             },
             "require": {
@@ -340,20 +538,17 @@
             "type": "library",
             "autoload": {
                 "classmap": [
-                    "Text/"
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
-            "include-path": [
-                ""
-            ],
             "license": [
                 "BSD-3-Clause"
             ],
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
+                    "email": "sebastian@phpunit.de",
                     "role": "lead"
                 }
             ],
@@ -362,20 +557,20 @@
             "keywords": [
                 "template"
             ],
-            "time": "2014-01-30 17:20:04"
+            "time": "2015-06-21 13:50:34"
         },
         {
             "name": "phpunit/php-timer",
-            "version": "1.0.5",
+            "version": "1.0.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-timer.git",
-                "reference": "19689d4354b295ee3d8c54b4f42c3efb69cbc17c"
+                "reference": "3e82f4e9fc92665fafd9157568e4dcb01d014e5b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/19689d4354b295ee3d8c54b4f42c3efb69cbc17c",
-                "reference": "19689d4354b295ee3d8c54b4f42c3efb69cbc17c",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/3e82f4e9fc92665fafd9157568e4dcb01d014e5b",
+                "reference": "3e82f4e9fc92665fafd9157568e4dcb01d014e5b",
                 "shasum": ""
             },
             "require": {
@@ -384,13 +579,10 @@
             "type": "library",
             "autoload": {
                 "classmap": [
-                    "PHP/"
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
-            "include-path": [
-                ""
-            ],
             "license": [
                 "BSD-3-Clause"
             ],
@@ -406,20 +598,20 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2013-08-02 07:42:54"
+            "time": "2015-06-21 08:01:12"
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "1.3.0",
+            "version": "1.4.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "f8d5d08c56de5cfd592b3340424a81733259a876"
+                "reference": "3144ae21711fb6cac0b1ab4cbe63b75ce3d4e8da"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/f8d5d08c56de5cfd592b3340424a81733259a876",
-                "reference": "f8d5d08c56de5cfd592b3340424a81733259a876",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/3144ae21711fb6cac0b1ab4cbe63b75ce3d4e8da",
+                "reference": "3144ae21711fb6cac0b1ab4cbe63b75ce3d4e8da",
                 "shasum": ""
             },
             "require": {
@@ -432,7 +624,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3-dev"
+                    "dev-master": "1.4-dev"
                 }
             },
             "autoload": {
@@ -455,7 +647,7 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2014-08-31 06:12:13"
+            "time": "2015-09-15 10:49:45"
         },
         {
             "name": "phpunit/phpunit",
@@ -533,25 +725,26 @@
         },
         {
             "name": "phpunit/phpunit-mock-objects",
-            "version": "2.3.0",
+            "version": "2.3.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit-mock-objects.git",
-                "reference": "c63d2367247365f688544f0d500af90a11a44c65"
+                "reference": "5e2645ad49d196e020b85598d7c97e482725786a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/c63d2367247365f688544f0d500af90a11a44c65",
-                "reference": "c63d2367247365f688544f0d500af90a11a44c65",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/5e2645ad49d196e020b85598d7c97e482725786a",
+                "reference": "5e2645ad49d196e020b85598d7c97e482725786a",
                 "shasum": ""
             },
             "require": {
-                "doctrine/instantiator": "~1.0,>=1.0.1",
+                "doctrine/instantiator": "^1.0.2",
                 "php": ">=5.3.3",
-                "phpunit/php-text-template": "~1.2"
+                "phpunit/php-text-template": "~1.2",
+                "sebastian/exporter": "~1.2"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.3"
+                "phpunit/phpunit": "~4.4"
             },
             "suggest": {
                 "ext-soap": "*"
@@ -584,34 +777,34 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2014-10-03 05:12:11"
+            "time": "2015-08-19 09:14:08"
         },
         {
             "name": "sebastian/comparator",
-            "version": "1.0.1",
+            "version": "1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "e54a01c0da1b87db3c5a3c4c5277ddf331da4aef"
+                "reference": "937efb279bd37a375bcadf584dec0726f84dbf22"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/e54a01c0da1b87db3c5a3c4c5277ddf331da4aef",
-                "reference": "e54a01c0da1b87db3c5a3c4c5277ddf331da4aef",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/937efb279bd37a375bcadf584dec0726f84dbf22",
+                "reference": "937efb279bd37a375bcadf584dec0726f84dbf22",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3",
-                "sebastian/diff": "~1.1",
-                "sebastian/exporter": "~1.0"
+                "sebastian/diff": "~1.2",
+                "sebastian/exporter": "~1.2"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.1"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -648,20 +841,20 @@
                 "compare",
                 "equality"
             ],
-            "time": "2014-05-11 23:00:21"
+            "time": "2015-07-26 15:48:44"
         },
         {
             "name": "sebastian/diff",
-            "version": "1.2.0",
+            "version": "1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/diff.git",
-                "reference": "5843509fed39dee4b356a306401e9dd1a931fec7"
+                "reference": "863df9687835c62aa423a22412d26fa2ebde3fd3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/5843509fed39dee4b356a306401e9dd1a931fec7",
-                "reference": "5843509fed39dee4b356a306401e9dd1a931fec7",
+                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/863df9687835c62aa423a22412d26fa2ebde3fd3",
+                "reference": "863df9687835c62aa423a22412d26fa2ebde3fd3",
                 "shasum": ""
             },
             "require": {
@@ -673,7 +866,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -700,32 +893,32 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2014-08-15 10:29:00"
+            "time": "2015-02-22 15:13:53"
         },
         {
             "name": "sebastian/environment",
-            "version": "1.2.0",
+            "version": "1.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "0d9bf79554d2a999da194a60416c15cf461eb67d"
+                "reference": "6324c907ce7a52478eeeaede764f48733ef5ae44"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/0d9bf79554d2a999da194a60416c15cf461eb67d",
-                "reference": "0d9bf79554d2a999da194a60416c15cf461eb67d",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/6324c907ce7a52478eeeaede764f48733ef5ae44",
+                "reference": "6324c907ce7a52478eeeaede764f48733ef5ae44",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.3"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "1.3.x-dev"
                 }
             },
             "autoload": {
@@ -750,32 +943,33 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2014-10-22 06:38:05"
+            "time": "2015-08-03 06:14:51"
         },
         {
             "name": "sebastian/exporter",
-            "version": "1.0.2",
+            "version": "1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "c7d59948d6e82818e1bdff7cadb6c34710eb7dc0"
+                "reference": "7ae5513327cb536431847bcc0c10edba2701064e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/c7d59948d6e82818e1bdff7cadb6c34710eb7dc0",
-                "reference": "c7d59948d6e82818e1bdff7cadb6c34710eb7dc0",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/7ae5513327cb536431847bcc0c10edba2701064e",
+                "reference": "7ae5513327cb536431847bcc0c10edba2701064e",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=5.3.3",
+                "sebastian/recursion-context": "~1.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.0"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -815,20 +1009,73 @@
                 "export",
                 "exporter"
             ],
-            "time": "2014-09-10 00:51:36"
+            "time": "2015-06-21 07:55:53"
+        },
+        {
+            "name": "sebastian/recursion-context",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/recursion-context.git",
+                "reference": "994d4a811bafe801fb06dccbee797863ba2792ba"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/994d4a811bafe801fb06dccbee797863ba2792ba",
+                "reference": "994d4a811bafe801fb06dccbee797863ba2792ba",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.4"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Jeff Welch",
+                    "email": "whatthejeff@gmail.com"
+                },
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                },
+                {
+                    "name": "Adam Harvey",
+                    "email": "aharvey@php.net"
+                }
+            ],
+            "description": "Provides functionality to recursively process PHP variables",
+            "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
+            "time": "2015-06-21 08:04:50"
         },
         {
             "name": "sebastian/version",
-            "version": "1.0.3",
+            "version": "1.0.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/version.git",
-                "reference": "b6e1f0cf6b9e1ec409a0d3e2f2a5fb0998e36b43"
+                "reference": "58b3a85e7999757d6ad81c787a1fbf5ff6c628c6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/b6e1f0cf6b9e1ec409a0d3e2f2a5fb0998e36b43",
-                "reference": "b6e1f0cf6b9e1ec409a0d3e2f2a5fb0998e36b43",
+                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/58b3a85e7999757d6ad81c787a1fbf5ff6c628c6",
+                "reference": "58b3a85e7999757d6ad81c787a1fbf5ff6c628c6",
                 "shasum": ""
             },
             "type": "library",
@@ -850,34 +1097,36 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2014-03-07 15:35:33"
+            "time": "2015-06-21 13:59:46"
         },
         {
             "name": "symfony/yaml",
-            "version": "v2.5.6",
-            "target-dir": "Symfony/Component/Yaml",
+            "version": "v2.7.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/Yaml.git",
-                "reference": "2d9f527449cabfa8543dd7fa3a466d6ae83d6726"
+                "reference": "2dc7b06c065df96cc686c66da2705e5e18aef661"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/Yaml/zipball/2d9f527449cabfa8543dd7fa3a466d6ae83d6726",
-                "reference": "2d9f527449cabfa8543dd7fa3a466d6ae83d6726",
+                "url": "https://api.github.com/repos/symfony/Yaml/zipball/2dc7b06c065df96cc686c66da2705e5e18aef661",
+                "reference": "2dc7b06c065df96cc686c66da2705e5e18aef661",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": ">=5.3.9"
+            },
+            "require-dev": {
+                "symfony/phpunit-bridge": "~2.7"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.5-dev"
+                    "dev-master": "2.7-dev"
                 }
             },
             "autoload": {
-                "psr-0": {
+                "psr-4": {
                     "Symfony\\Component\\Yaml\\": ""
                 }
             },
@@ -887,24 +1136,26 @@
             ],
             "authors": [
                 {
-                    "name": "Symfony Community",
-                    "homepage": "http://symfony.com/contributors"
-                },
-                {
                     "name": "Fabien Potencier",
                     "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
                 }
             ],
             "description": "Symfony Yaml Component",
-            "homepage": "http://symfony.com",
-            "time": "2014-10-01 05:50:18"
+            "homepage": "https://symfony.com",
+            "time": "2015-08-24 07:13:45"
         }
     ],
     "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
     "platform": {
-        "php": ">=5.3.0"
+        "php": ">=5.5.0"
     },
     "platform-dev": []
 }
diff --git a/examples/transmission/get_all_transmissions.php b/examples/transmission/get_all_transmissions.php
index db06b68..2005a75 100644
--- a/examples/transmission/get_all_transmissions.php
+++ b/examples/transmission/get_all_transmissions.php
@@ -4,14 +4,19 @@ require_once (dirname(__FILE__).'/../bootstrap.php');
 
 use SparkPost\SparkPost;
 use SparkPost\Transmission;
+use GuzzleHttp\Client;
+use Ivory\HttpAdapter\Guzzle6HttpAdapter;
 
-$key = 'YOURAPIKEY'; 
-SparkPost::setConfig(array('key'=>$key));
+$key = 'YOURAPIKEY';
+$httpAdapter = new Guzzle6HttpAdapter(new Client());
+SparkPost::setConfig($httpAdapter, ['key'=>$key]);
 
 try {
 	$results = Transmission::all();
+	echo "it returned!!!";
+	var_dump($results);
 	echo 'Congrats you can use your SDK!';
 } catch (\Exception $exception) {
 	echo $exception->getMessage();
 }
-?>
\ No newline at end of file
+?>
diff --git a/lib/SparkPost/APIResource.php b/lib/SparkPost/APIResource.php
index 469ba7e..be3d788 100644
--- a/lib/SparkPost/APIResource.php
+++ b/lib/SparkPost/APIResource.php
@@ -1,65 +1,36 @@
 <?php
 namespace SparkPost;
-use Guzzle\Http\Client;
-use Guzzle\Http\Exception\ClientErrorResponseException;
+use Ivory\HttpAdapter\HttpAdapterException;
 
 /**
  * @desc SDK interface for managing SparkPost API endpoints
  */
 class APIResource {
-	
+
 	/**
 	 * @desc name of the API endpoint, mainly used for URL construction.
 	 * @var string
 	 */
 	public static $endpoint;
-	
-	/**
-	 * @desc singleton holder to create a guzzle http client 
-	 * @var \GuzzleHttp\Client
-	 */
-	protected static $request;
-	
+
 	/**
 	 * @desc Mapping for values passed into the send method to the values needed for the respective API
 	 * @var array
 	 */
 	protected static $parameterMappings = array();
-	
+
 	/**
 	 * @desc Sets up default structure and default values for the model that is acceptable by the API
 	 * @var array
 	 */
 	protected static $structure = array();
-	
+
 	/**
 	 * @desc Ensure that this class cannot be instansiated
 	 */
 	private function __construct() {}
 
 	/**
-	 * @desc Creates and returns a guzzle http client.
-	 * @return \GuzzleHttp\Client
-	 */
-	protected static function getHttpClient() {
-		if(!isset(self::$request)) {
-			self::$request = new Client();
-		}
-		return self::$request;
-	}
-	
-	/**
-	 * @desc Private Method helper to get the configuration values to create the base url for the current API endpoint
-	 * 
-	 * @return string base url for the transmissions API
-	 */
-	protected static function getBaseUrl($config) {
-		$baseUrl = '/api/' . $config['version'] . '/' . static::$endpoint;
-		return $config['protocol'] . '://' . $config['host'] . ($config['port'] ? ':' . $config['port'] : '') .  $baseUrl;
-	}
-	
-	
-	/**
 	 * @desc Private Method helper to reference parameter mappings and set the right value for the right parameter
 	 */
 	protected static function setMappedValue (&$model, $mapKey, $value) {
@@ -74,7 +45,7 @@ class APIResource {
 		} else {
 			return;
 		}
-		
+
 		$path = explode('.', $mapPath);
 		$temp = &$model;
 		foreach( $path as $key ) {
@@ -84,57 +55,30 @@ class APIResource {
 			$temp = &$temp[$key];
 		}
 		$temp = $value;
-		
+
 	}
-	
+
 	protected static function buildRequestModel( $requestConfig, $model=array() ) {
 		foreach($requestConfig as $key=>$value) {
 			self::setMappedValue($model, $key, $value);
 		}
 		return $model;
 	}
-	
+
 	/**
-	 * @desc Method for issuing POST requests
-	 *
-	 * @return array API repsonse represented as key-value pairs
+	 * TODO: Docs
 	 */
-	public static function sendRequest( $requestConfig ) {
-		$hostConfig = SparkPost::getConfig();
-		$request = self::getHttpClient();
-		
-		//create model from $transmissionConfig
-		$model = static::$structure;
-		$requestModel = self::buildRequestModel( $requestConfig, $model );
-		
-		//send the request
-		try {
-			$response = $request->post(
-				self::getBaseUrl($hostConfig),
-				array('authorization' => $hostConfig['key']),
-				json_encode($requestModel),
-				array("verify"=>$hostConfig['strictSSL'])
-			)->send();
-			
-			return $response->json();
-		} 
-		/*
-		 * Handles 4XX responses
-		 */
-		catch (ClientErrorResponseException $exception) {
-			$response = $exception->getResponse();
-			$responseArray = $response->json();
-			throw new \Exception(json_encode($responseArray['errors']));	
-		} 
-		/*
-		 * Handles 5XX Errors, Configuration Errors, and a catch all for other errors
-		 */
-		catch (\Exception $exception) { 
-			throw new \Exception("Unable to contact ".ucfirst(static::$endpoint)." API: ". $exception->getMessage());
-		}
+	public static function create(Array $body=[]) {
+		return self::callResource( 'post', '/', ['body'=>$options]);
+	}
+
+  /**
+	 * TODO: Docs
+	 */
+	public static function update(String $resourcePath, Array $body=[]) {
+		return self::callResource( 'post', $resourcePath, ['body'=>$options]);
 	}
 
-	
 	/**
 	 * @desc Wrapper method for issuing GET request to current API endpoint
 	 *
@@ -142,10 +86,10 @@ class APIResource {
 	 * @param array $options (optional) query string parameters
 	 * @return array Result set of transmissions found
 	 */
-	public static function fetchResource( $resourcePath=null, $options=array() ) {
+	public static function get(String $resourcePath=null, Array $options=[] ) {
 		return self::callResource( 'get', $resourcePath, $options );
 	}
-	
+
 	/**
 	 * @desc Wrapper method for issuing DELETE request to current API endpoint
 	 *
@@ -153,10 +97,10 @@ class APIResource {
 	 * @param array $options (optional) query string parameters
 	 * @return array Result set of transmissions found
 	 */
-	public static function deleteResource( $resourcePath=null, $options=array() ) {
+	public static function delete(String $resourcePath=null, Array $options=[] ) {
 		return self::callResource( 'delete', $resourcePath, $options );
 	}
-	
+
 	/**
 	 * @desc Private Method for issuing GET and DELETE request to current API endpoint
 	 *
@@ -170,41 +114,48 @@ class APIResource {
 	 * @param array $options (optional) query string parameters
 	 * @return array Result set of action performed on resource
 	 */
-	private static function callResource( $action, $resourcePath=null, $options=array() ) {
-		
-		if( !in_array( $action, array('get', 'delete') ) ) throw new \Exception('Invalid resource action');
-		
-		//build the url
-		$hostConfig = SparkPost::getConfig();
-		$url = self::getBaseUrl($hostConfig);
+	private static function callResource( $action, $resourcePath=null, $options=[] ) {
+		$action = strtoupper($action); // normalize
+
+		if( !in_array($action, ['POST', 'PUT', 'GET', 'DELETE'])) {
+			throw new \Exception('Invalid resource action');
+		}
+
+		$url = '/'.static::$endpoint;
+		$body = null;
 		if (!is_null($resourcePath)){
-			$url .= '/'.$resourcePath;
+			$url .= $url.$resourcePath;
 		}
-		
+
 		// untested:
-		if( !empty($options) ) {
-			$queryString = http_build_query($options);
+		if( !empty($options['query'])) {
+			$queryString = http_build_query($options['query']);
 			$url .= '?'.$queryString;
 		}
-		
-		$request = self::getHttpClient();
-		
+
+		if( !empty($options['body']) ) {
+			$model = static::$structure;
+			$requestModel = self::buildRequestModel( $requestConfig, $options['body'] );
+			$body = json_encode($requestModel);
+		}
+
 		//make request
 		try {
-			$response = $request->{$action}($url, array('authorization' => $hostConfig['key']), array("verify"=>$hostConfig['strictSSL']))->send();
-			return $response->json();
+			$httpAdapter = SparkPost::getHttpAdapter();
+			$response = SparkPost::getHttpAdapter()->send($url, $action, SparkPost::getHttpHeaders(), $body);
+			return json_decode($response->getBody()->getContents(), true);
 		}
 		/*
 		 * Handles 4XX responses
 		 */
-		catch (ClientErrorResponseException $exception) {
-			$response = $exception->getResponse();
-			$statusCode = $response->getStatusCode();
-			if($statusCode === 404) {
-				throw new \Exception("The specified resource does not exist", 404);
-			}
-			throw new \Exception("Received bad response from ".ucfirst(static::$endpoint)." API: ". $statusCode );
-		}
+		// catch (HttpAdapterException $exception) {
+		// 	$response = $exception->getResponse();
+		// 	$statusCode = $response->getStatusCode();
+		// 	if($statusCode === 404) {
+		// 		throw new \Exception("The specified resource does not exist", 404);
+		// 	}
+		// 	throw new \Exception("Received bad response from ".ucfirst(static::$endpoint)." API: ". $statusCode );
+		// }
 		/*
 		 * Handles 5XX Errors, Configuration Errors, and a catch all for other errors
 		 */
@@ -212,5 +163,5 @@ class APIResource {
 			throw new \Exception("Unable to contact ".ucfirst(static::$endpoint)." API: ". $exception->getMessage());
 		}
 	}
-	
+
 }
diff --git a/lib/SparkPost/SparkPost.php b/lib/SparkPost/SparkPost.php
index 755df46..3b54ada 100644
--- a/lib/SparkPost/SparkPost.php
+++ b/lib/SparkPost/SparkPost.php
@@ -1,30 +1,34 @@
 <?php
 namespace SparkPost;
+use Ivory\HttpAdapter;
+use Ivory\HttpAdapter\Configuration;
 
 class SparkPost {
-	
+
 	private static $config;
+	private static $httpAdapter;
+
 	private static $defaults = array(
 			'host'=>'api.sparkpost.com',
 			'protocol'=>'https',
 			'port'=>443,
 			'strictSSL'=>true,
 			'key'=>'',
-			'version'=>'v1'	
+			'version'=>'v1'
 		);
-	
+
 	/**
 	 * Enforce that this object can't be instansiated
 	 */
 	private function __construct(){}
-	
+
 	/**
 	 * Allows the user to pass in values to override the defaults and set their API key
 	 * @param Array $configMap - Hashmap that contains config values for the SDK to connect to SparkPost
 	 * @throws \Exception
 	 */
-	public static function setConfig(array $configMap) {
-		//check for API key because its required	
+	public static function setConfig($httpAdapter, array $configMap) {
+		//check for API key because its required
 		if (isset($configMap['key'])){
 			$key = trim($configMap['key']);
 			if(empty($key)){
@@ -33,28 +37,88 @@ class SparkPost {
 		} else {
 			throw new \Exception('You must provide an API key');
 		}
+		// TODO: need to figure out how to enforce this
+		// if (!$httpAdapter instanceOf HttpAdapterInterface) {
+		// 	throw new \Exception('First Argument must be a valid Ivory\HttpAdapter');
+		// }
+
 		self::$config = self::$defaults;
+
+		self::$httpAdapter = $httpAdapter;
+
 		foreach ($configMap as $configOption => $configValue) {
 			if(key_exists($configOption, self::$config)) {
 				self::$config[$configOption] = $configValue;
 			}
 		}
+
+		self::$httpAdapter->setConfiguration(self::getHttpConfig(self::$config));
+	}
+
+
+	/**
+	 * @desc Merges passed in headers with default headers for http requests
+	 * @return Array - headers to be set on http requests
+	 */
+	public static function getHttpHeaders(Array $headers = null) {
+		$defaultOptions = [
+			'Authorization' => self::$config['key'],
+			'Content-Type' => 'application/json',
+		];
+
+		// Merge passed in headers with defaults
+		if (!is_null($headers)) {
+			foreach ($headers as $header => $value) {
+				$defaultOptions[$header] = $value;
+			}
+		}
+		return $defaultOptions;
+	}
+
+
+	/**
+	 * @desc Helper function for getting the configuration for http requests
+	 * @return \Ivory\HttpAdapter\Configuration
+	 */
+	 // TODO: Need to figure out how to set strictSSL
+	private static function getHttpConfig($config) {
+		// get composer.json to extract version number
+		$composerFile = file_get_contents(dirname(__FILE__) . "/../../composer.json");
+		$composer = json_decode($composerFile, true);
+
+		// create Configuration for http adapter
+		$httpConfig = new Configuration();
+		$baseUrl = $config['protocol'] . '://' . $config['host'] . ($config['port'] ? ':' . $config['port'] : '') . '/api/' . $config['version'];
+		$httpConfig->setBaseUri($baseUrl);
+		$httpConfig->setUserAgent('php-sparkpost/' . $composer['version']);
+		return $httpConfig;
 	}
-	
+
 	/**
 	 * Retrieves the configuration that was previously setup by the user
 	 * @throws \Exception
 	 */
 	public static function getConfig() {
-		if (self::$config === null) {	
+		if (self::$config === null) {
 			throw new \Exception('No configuration has been provided');
 		}
 		return self::$config;
 	}
-	
+
 	public static function unsetConfig() {
 		self::$config = NULL;
 	}
+
+	/**
+	 * Retrieves the Http Adapter that was previously setup by the user
+	 * @throws \Exception
+	 */
+	public static function getHttpAdapter() {
+		if (self::$config === null) {
+			throw new \Exception('No Http Adapter has been provided');
+		}
+		return self::$httpAdapter;
+	}
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/lib/SparkPost/Transmission.php b/lib/SparkPost/Transmission.php
index 4e54f1d..82cc11d 100644
--- a/lib/SparkPost/Transmission.php
+++ b/lib/SparkPost/Transmission.php
@@ -7,11 +7,11 @@ use Guzzle\Http\Exception\ClientErrorResponseException;
  * @desc SDK interface for managing transmissions
  */
 class Transmission extends APIResource {
-	
+
 	public static $endpoint = 'transmissions';
-	
+
 	/**
-	 * @desc Mapping for values passed into the send method to the values needed for the Transmission API 
+	 * @desc Mapping for values passed into the send method to the values needed for the Transmission API
 	 * @var array
 	 */
 	protected static $parameterMappings = array(
@@ -34,7 +34,7 @@ class Transmission extends APIResource {
 		'trackClicks'=>'options.click_tracking',
 		'useDraftTemplate'=>'use_draft_template'
 	);
-	
+
 	/**
 	 * @desc Sets up default structure and default values for the model that is acceptable by the API
 	 * @var array
@@ -42,20 +42,20 @@ class Transmission extends APIResource {
 	protected static $structure = array(
 		'return_path'=>"default@sparkpostmail.com",
 		'content'=>array(
-			'html'=>null, 
+			'html'=>null,
 			'text'=>null,
 			'email_rfc822'=>null
 		),
 		'use_draft_template'=>false
 	);
-	
+
 	/**
 	 * @desc Method for issuing POST request to the Transmissions API
 	 *
 	 *  This method assumes that all the appropriate fields have
-	 *  been populated by the user through configuration.  Acceptable 
-	 *  configuration values are: 
-	 *  'campaign': string, 
+	 *  been populated by the user through configuration.  Acceptable
+	 *  configuration values are:
+	 *  'campaign': string,
 	 *	'metadata': array,
 	 *	'substitutionData': array,
 	 *	'description': string,
@@ -71,42 +71,38 @@ class Transmission extends APIResource {
 	 *	'template': string,
 	 *	'trackOpens': boolean,
 	 *	'trackClicks': boolean,
-	 *	'useDraftTemplate': boolean 
+	 *	'useDraftTemplate': boolean
 	 *
 	 * @return array API repsonse represented as key-value pairs
 	 */
 	public static function send( $transmissionConfig ) {
-		return self::sendRequest( $transmissionConfig );
+		return self::create( $transmissionConfig );
 	}
-	
+
 	/**
 	 * @desc Method for retrieving information about all transmissions
 	 *  Wrapper method for a cleaner interface
-	 *  
+	 *
 	 * @return array result Set of transmissions
 	 */
 	public static function all( $campaignID=null, $templateID=null ) {
 		$options = array();
 		if( $campaignID !== NULL ) $options['campaign_id'] = $campaignID;
 		if( $templateID !== NULL ) $options['template_id'] = $templateID;
-		
-		return self::fetchResource( null, $options ); 
+
+		return self::get( null, $options );
 	}
-	
+
 	/**
 	 * @desc Method for retrieving information about a single transmission
  	 *  Wrapper method for a cleaner interface
- 	 *  
+ 	 *
 	 * @param string $transmissionID Identifier of the transmission to be found
 	 * @return array result Single transmission represented in key-value pairs
 	 */
 	public static function find($transmissionID) {
-		return self::fetchResource($transmissionID);
-	}
-	
-	public static function delete( $transmissionID ) {
-		return self::deleteResource($transmissionID);
+		return self::get($transmissionID);
 	}
 }
 
-?>
\ No newline at end of file
+?>