diff --git a/.gitignore b/.gitignore
index 874636b..6f520b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 
-.idea/
\ No newline at end of file
+.idea/
+vendor
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 2630d2d..06edc27 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "ardent/picnic-api",
     "description": "PHP implementation of the unofficial picnic api",
-    "type": "composer-plugin",
+    "type": "library",
     "license": "GPL-3.0-only",
     "authors": [
         {
@@ -9,5 +9,14 @@
             "email": "tim.veenendaal@gmail.com"
         }
     ],
-    "require": {}
+    "require": {
+        "php": "^7.4|^8.0",
+        "ext-json": "*",
+        "guzzlehttp/guzzle": "^7.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Ardent\\PicnicApi\\": "src/"
+        }
+    }
 }
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000..c01a916
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,401 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "0926e088d41b2703d3d62b007571edf6",
+    "packages": [
+        {
+            "name": "guzzlehttp/guzzle",
+            "version": "7.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/guzzle.git",
+                "reference": "7008573787b430c1c1f650e3722d9bba59967628"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/7008573787b430c1c1f650e3722d9bba59967628",
+                "reference": "7008573787b430c1c1f650e3722d9bba59967628",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "guzzlehttp/promises": "^1.4",
+                "guzzlehttp/psr7": "^1.7 || ^2.0",
+                "php": "^7.2.5 || ^8.0",
+                "psr/http-client": "^1.0"
+            },
+            "provide": {
+                "psr/http-client-implementation": "1.0"
+            },
+            "require-dev": {
+                "bamarni/composer-bin-plugin": "^1.4.1",
+                "ext-curl": "*",
+                "php-http/client-integration-tests": "^3.0",
+                "phpunit/phpunit": "^8.5.5 || ^9.3.5",
+                "psr/log": "^1.1"
+            },
+            "suggest": {
+                "ext-curl": "Required for CURL handler support",
+                "ext-intl": "Required for Internationalized Domain Name (IDN) support",
+                "psr/log": "Required for using the Log middleware"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "7.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "GuzzleHttp\\": "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"
+                },
+                {
+                    "name": "Márk Sági-Kazár",
+                    "email": "mark.sagikazar@gmail.com",
+                    "homepage": "https://sagikazarmark.hu"
+                }
+            ],
+            "description": "Guzzle is a PHP HTTP client library",
+            "homepage": "http://guzzlephp.org/",
+            "keywords": [
+                "client",
+                "curl",
+                "framework",
+                "http",
+                "http client",
+                "psr-18",
+                "psr-7",
+                "rest",
+                "web service"
+            ],
+            "support": {
+                "issues": "https://github.com/guzzle/guzzle/issues",
+                "source": "https://github.com/guzzle/guzzle/tree/7.3.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/GrahamCampbell",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/Nyholm",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/alexeyshockov",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/gmponos",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-03-23T11:33:13+00:00"
+        },
+        {
+            "name": "guzzlehttp/promises",
+            "version": "1.4.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/promises.git",
+                "reference": "8e7d04f1f6450fef59366c399cfad4b9383aa30d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/promises/zipball/8e7d04f1f6450fef59366c399cfad4b9383aa30d",
+                "reference": "8e7d04f1f6450fef59366c399cfad4b9383aa30d",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5"
+            },
+            "require-dev": {
+                "symfony/phpunit-bridge": "^4.4 || ^5.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.4-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"
+            ],
+            "support": {
+                "issues": "https://github.com/guzzle/promises/issues",
+                "source": "https://github.com/guzzle/promises/tree/1.4.1"
+            },
+            "time": "2021-03-07T09:25:29+00:00"
+        },
+        {
+            "name": "guzzlehttp/psr7",
+            "version": "1.8.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/psr7.git",
+                "reference": "35ea11d335fd638b5882ff1725228b3d35496ab1"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/35ea11d335fd638b5882ff1725228b3d35496ab1",
+                "reference": "35ea11d335fd638b5882ff1725228b3d35496ab1",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.0",
+                "psr/http-message": "~1.0",
+                "ralouphie/getallheaders": "^2.0.5 || ^3.0.0"
+            },
+            "provide": {
+                "psr/http-message-implementation": "1.0"
+            },
+            "require-dev": {
+                "ext-zlib": "*",
+                "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.14 || ^7.5.20 || ^8.5.8 || ^9.3.10"
+            },
+            "suggest": {
+                "laminas/laminas-httphandlerrunner": "Emit PSR-7 responses"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.7-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"
+                },
+                {
+                    "name": "Tobias Schultze",
+                    "homepage": "https://github.com/Tobion"
+                }
+            ],
+            "description": "PSR-7 message implementation that also provides common utility methods",
+            "keywords": [
+                "http",
+                "message",
+                "psr-7",
+                "request",
+                "response",
+                "stream",
+                "uri",
+                "url"
+            ],
+            "support": {
+                "issues": "https://github.com/guzzle/psr7/issues",
+                "source": "https://github.com/guzzle/psr7/tree/1.8.1"
+            },
+            "time": "2021-03-21T16:25:00+00:00"
+        },
+        {
+            "name": "psr/http-client",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/http-client.git",
+                "reference": "2dfb5f6c5eff0e91e20e913f8c5452ed95b86621"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/http-client/zipball/2dfb5f6c5eff0e91e20e913f8c5452ed95b86621",
+                "reference": "2dfb5f6c5eff0e91e20e913f8c5452ed95b86621",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.0 || ^8.0",
+                "psr/http-message": "^1.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Http\\Client\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for HTTP clients",
+            "homepage": "https://github.com/php-fig/http-client",
+            "keywords": [
+                "http",
+                "http-client",
+                "psr",
+                "psr-18"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/http-client/tree/master"
+            },
+            "time": "2020-06-29T06:28:15+00:00"
+        },
+        {
+            "name": "psr/http-message",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/http-message.git",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Http\\Message\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for HTTP messages",
+            "homepage": "https://github.com/php-fig/http-message",
+            "keywords": [
+                "http",
+                "http-message",
+                "psr",
+                "psr-7",
+                "request",
+                "response"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/http-message/tree/master"
+            },
+            "time": "2016-08-06T14:39:51+00:00"
+        },
+        {
+            "name": "ralouphie/getallheaders",
+            "version": "3.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ralouphie/getallheaders.git",
+                "reference": "120b605dfeb996808c31b6477290a714d356e822"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/120b605dfeb996808c31b6477290a714d356e822",
+                "reference": "120b605dfeb996808c31b6477290a714d356e822",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.6"
+            },
+            "require-dev": {
+                "php-coveralls/php-coveralls": "^2.1",
+                "phpunit/phpunit": "^5 || ^6.5"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "src/getallheaders.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ralph Khattar",
+                    "email": "ralph.khattar@gmail.com"
+                }
+            ],
+            "description": "A polyfill for getallheaders.",
+            "support": {
+                "issues": "https://github.com/ralouphie/getallheaders/issues",
+                "source": "https://github.com/ralouphie/getallheaders/tree/develop"
+            },
+            "time": "2019-03-08T08:55:37+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.0.0"
+}
diff --git a/src/ClientBuilder.php b/src/ClientBuilder.php
new file mode 100644
index 0000000..7c8c310
--- /dev/null
+++ b/src/ClientBuilder.php
@@ -0,0 +1,69 @@
+<?php
+
+
+namespace Ardent\PicnicApi;
+
+
+use GuzzleHttp\Client;
+use GuzzleHttp\RequestOptions;
+
+class ClientBuilder
+{
+    const DEFAULT_COUNTRY_CODE = "NL";
+    const DEFAULT_API_VERSION = "15";
+
+    private string $username;
+    private string $password;
+
+    /**
+     * ClientBuilder constructor.
+     */
+    public function __construct(string $username, string $password)
+    {
+        $this->username = $username;
+        $this->password = $password;
+    }
+
+    public function getClient(): Client
+    {
+        return new Client([
+            'base_uri' => $this->getBaseUri(),
+            'headers' => $this->getHeaders(),
+        ]);
+    }
+
+    private function authenticate(): string
+    {
+        $client = new Client([
+            'base_uri' => $this->getBaseUri(),
+        ]);
+        $data = [
+            'key' => $this->username, // username
+            'secret' => md5($this->password), // password
+            'client_id' => 1,
+        ];
+        $result = $client->post('user/login', [
+            RequestOptions::JSON => $data,
+        ]);
+//        $body = json_decode($result->getBody()->getContents(), true);
+//        $userId = $body['user_id'];
+//        $meta = json_decode(base64_decode($result->getHeader('picnic-meta-info')[0]))
+
+        return $result->getHeader('x-picnic-auth')[0];
+    }
+
+    private function getBaseUri(): string
+    {
+        return sprintf('https://storefront-prod.%s.picnicinternational.com/api/%s/',
+            self::DEFAULT_COUNTRY_CODE,
+            self::DEFAULT_API_VERSION
+        );
+    }
+
+    private function getHeaders(): array
+    {
+        return [
+            'x-picnic-auth' => $this->authenticate(),
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/PicnicClient.php b/src/PicnicClient.php
new file mode 100644
index 0000000..3f93319
--- /dev/null
+++ b/src/PicnicClient.php
@@ -0,0 +1,50 @@
+<?php
+
+
+namespace Ardent\PicnicApi;
+
+
+use GuzzleHttp\Client;
+use GuzzleHttp\RequestOptions;
+
+class PicnicClient
+{
+    private Client $client;
+
+    public function __construct(string $username, string $password)
+    {
+        $cb = new ClientBuilder($username, $password);
+        $this->client = $cb->getClient();
+    }
+
+    public function getUser()
+    {
+        return $this->get('user');
+    }
+
+    public function getCart()
+    {
+        return $this->get('cart');
+    }
+
+    public function search(string $term)
+    {
+        return $this->get(sprintf('search?search_term=%s', urlencode($term)));
+    }
+
+    private function post(string $url, array $data): array
+    {
+        $data = $this->client->post($url, [
+            RequestOptions::JSON => $data,
+        ]);
+
+        return json_decode($data->getBody()->getContents(), true);
+    }
+
+    private function get(string $url): array
+    {
+        $data = $this->client->get($url);
+
+        return json_decode($data->getBody()->getContents(), true);
+    }
+}
\ No newline at end of file