diff --git a/api-payroll/composer.json b/api-payroll/composer.json
index 5ed5d2e..86aff1a 100644
--- a/api-payroll/composer.json
+++ b/api-payroll/composer.json
@@ -25,6 +25,12 @@
             "Tests\\": "tests/"
         }
     },
+    "autoload": {
+        "psr-4": {
+            "App\\Service\\": "src/service",
+            "App\\Application\\": "src/application"
+        }
+    },
     "config": {
         "process-timeout" : 0
     },
diff --git a/api-payroll/composer.lock b/api-payroll/composer.lock
index 87831fe..65a8bff 100644
--- a/api-payroll/composer.lock
+++ b/api-payroll/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "bea55e49da1d79bf5a4874824904525d",
+    "hash": "9f4397e11cb2603e7754216c4f59c7ad",
     "content-hash": "5e16cb7781829836a704bd8767830833",
     "packages": [
         {
diff --git a/api-payroll/src/application/SessionApplication.php b/api-payroll/src/application/SessionApplication.php
new file mode 100644
index 0000000..bfb94e2
--- /dev/null
+++ b/api-payroll/src/application/SessionApplication.php
@@ -0,0 +1,43 @@
+<?php
+namespace App\Application;
+
+class SessionApplication{
+    // The to be connection
+    private $pdo = '';
+
+    function __construct($mysqlSettings, $cryptographyService){
+        // Services
+        $this->cryptographyService = $cryptographyService;
+
+        // The database parameters
+        $this->host = $mysqlSettings['host'];
+        $this->database = $mysqlSettings['database'];
+        $this->user = $mysqlSettings['user'];
+        $this->password = $mysqlSettings['password'];
+        $this->charset = $mysqlSettings['charset'];
+        $this->pdoConnectionOptions = $mysqlSettings['pdoConnectionOptions'];
+
+        // Generic error messages
+        $this->databaseConnectionErrorMessage = $mysqlSettings['databaseConnectionErrorMessage'];
+        $this->databaseSelectQueryErrorMessage = $mysqlSettings['databaseSelectQueryErrorMessage'];
+        $this->databaseInsertQueryErrorMessage = $mysqlSettings['databaseInsertQueryErrorMessage'];
+
+        // Initiate the connection
+        $dsn = "mysql:host=$this->host;dbname=$this->database;charset=$this->charset";
+        try {
+            $this->pdo = new PDO($dsn, $this->user, $this->password, $this->pdoConnectionOptions);
+        } catch (Exception $e) {
+            error_log($e->getMessage());
+            exit($this->databaseConnectionErrorMessage);
+        }
+    }
+
+    function newSession($userName, $password){
+        $real = 'slothness';
+
+        if($this->cryptographyService->decryptPassword($real, $password)){
+
+        }
+    }
+}
+?>
\ No newline at end of file
diff --git a/api-payroll/src/dependencies.php b/api-payroll/src/dependencies.php
index a2c576e..61f49fd 100644
--- a/api-payroll/src/dependencies.php
+++ b/api-payroll/src/dependencies.php
@@ -21,7 +21,16 @@ $container['logger'] = function ($c) {
 // Cryto functions
 $container['cryptographyService'] = function ($c) {
     $cryptographySettings = $c->get('settings')['cryptography'];
-    require dirname(__FILE__) . "/../src/service/cryptography.php";
-    $cryptographyService = new cryptographyService($cryptographySettings);
+    $cryptographyService = new App\Service\CryptographyService($cryptographySettings);
     return $cryptographyService;
 };
+
+// The session application
+$container['sessionApplication'] = function ($c) {
+    $cryptographySettings = $c->get('settings')['cryptography'];
+    $cryptographyService = new App\Service\CryptographyService($cryptographySettings);
+
+    $mysqlSettings = $c->get('settings')['mysql'];
+    $sessionApplication = new App\Application\SessionApplication($mysqlSettings, $cryptographyService);
+    return $sessionApplication;
+};
\ No newline at end of file
diff --git a/api-payroll/src/routes.php b/api-payroll/src/routes.php
index 00d1592..d588aed 100644
--- a/api-payroll/src/routes.php
+++ b/api-payroll/src/routes.php
@@ -11,4 +11,35 @@ $app->get('/[{name}]', function (Request $request, Response $response, array $ar
 
     // Render index view
     return $this->renderer->render($response, 'index.phtml', $args);
+});
+
+
+$app->post('/api/session/login', function ($request, $response) {
+    $RequestData = $request->getParsedBody();
+
+    $data = $this->sessionApplication->newSession($RequestData['userName'], $RequestData['password']);
+
+    return $response->withStatus(200)
+        ->withHeader('Content-Type', 'application/json')
+        ->write(json_encode($data));
+});
+
+
+$app->get('/api/encrypt/{string}', function (Request $request, Response $response, array $args) {
+    return $this->cryptographyService->encryptString($args['string']);
+});
+
+$app->get('/api/decrypt/{string}', function (Request $request, Response $response, array $args) {
+    return $this->cryptographyService->decryptString($args['string']);
+});
+
+$app->get('/api/encrypt/password/{string}', function (Request $request, Response $response, array $args) {
+    return $this->cryptographyService->encryptPassword($args['string']);
+});
+
+$app->get('/api/decrypt/password/{string}', function (Request $request, Response $response, array $args) {
+    $cosa = $this->cryptographyService->decryptPassword("pablso", "$2y$12$4T.gxWkQNPPFQau7ghfiQegdJQOm1yLTlbOTvcI3AizyqF/JSHr06");
+    if ($cosa){
+        return "yea";
+    }
 });
\ No newline at end of file
diff --git a/api-payroll/src/service/cryptography.php b/api-payroll/src/service/CryptographyService.php
similarity index 97%
rename from api-payroll/src/service/cryptography.php
rename to api-payroll/src/service/CryptographyService.php
index 6183ddd..9e3dcca 100644
--- a/api-payroll/src/service/cryptography.php
+++ b/api-payroll/src/service/CryptographyService.php
@@ -1,4 +1,6 @@
 <?php
+namespace App\Service;
+
 /**
  * A collection of functions to securely handling sensitive data,
  * passwords as well as making use of other crypto needs within
@@ -7,7 +9,7 @@
  * @property  settings
 */
 
-class cryptographyService{
+class CryptographyService{
 
     function __construct($cryptographySettings) {
         $this->settings = $cryptographySettings;
@@ -19,7 +21,7 @@ class cryptographyService{
      *
      * @param $text string
      * @return string
-     * @throws Exception
+     * @throws \Exception
      */
     function encryptString($text){
         try {
diff --git a/api-payroll/src/settings.php b/api-payroll/src/settings.php
index e8c6719..54893f4 100644
--- a/api-payroll/src/settings.php
+++ b/api-payroll/src/settings.php
@@ -23,5 +23,22 @@ return [
             'passwordHashCost' => '12',
             'ivSize' => 16, // 128 bits
         ],
+
+        // Datanase settings
+        'mysql' => [
+            'host' => 'localhost',
+            'database' => 'payroll',
+            'user' => 'root',
+            'password' => '12345678',
+            'charset' => 'utf8',
+            'pdoConnectionOptions' => [
+                PDO::ATTR_EMULATE_PREPARES   => true, // The querys will be prepared by pdo instead of the dbms
+                PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION, // Errors will be returned as exceptions
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, // Data will be returned in associative arrays
+            ],
+            'databaseConnectionErrorMessage' => 'Unable to connect to the database.',
+            'databaseSelectQueryErrorMessage' => 'There was an error fetching the data.',
+            'databaseInsertQueryErrorMessage' => 'There was an error inserting the record.',
+        ],
     ],
 ];