Merge pull request #4 from 1elf-me/patch-1

Update to Laravel 7.x

README.md

@@ -9,9 +9,10 @@ PHP bitinflow Accounts API Client for Laravel 5+
 ## Table of contents
 
 1. [Installation](#installation)
-2. [Configuration](#configuration)
-3. [Examples](#examples)
-4. [Documentation](#documentation)
+2. [Event Listener](#event-listener)
+3. [Configuration](#configuration)
+4. [Examples](#examples)
+5. [Documentation](#documentation)
 6. [Development](#Development)
 
 ## Installation
@@ -28,6 +29,28 @@ Add Service Provider to your `app.php` configuration file:
 GhostZero\BitinflowAccounts\Providers\BitinflowAccountsServiceProvider::class,
 ```
 
+## Event Listener
+
+- Add `SocialiteProviders\Manager\SocialiteWasCalled` event to your `listen[]` array in `app/Providers/EventServiceProvider`.
+- Add your listeners (i.e. the ones from the providers) to the `SocialiteProviders\Manager\SocialiteWasCalled[]` that you just created.
+- The listener that you add for this provider is `'GhostZero\\BitinflowAccounts\\Socialite\\BitinflowExtendSocialite@handle',`.
+- Note: You do not need to add anything for the built-in socialite providers unless you override them with your own providers.
+
+
+```
+/**
+ * The event handler mappings for the application.
+ *
+ * @var array
+ */
+protected $listen = [
+    \SocialiteProviders\Manager\SocialiteWasCalled::class => [
+        // add your listeners (aka providers) here
+        'GhostZero\\BitinflowAccounts\\Socialite\\BitinflowExtendSocialite@handle',
+    ],
+];
+```
+
 ## Configuration
 
 Copy configuration to config folder:
@@ -44,6 +67,18 @@ BITINFLOW_ACCOUNTS_SECRET=
 BITINFLOW_ACCOUNTS_REDIRECT_URI=http://localhost
 ```
 
+You will need to add an entry to the services configuration file so that after config files are cached for usage in production environment (Laravel command `artisan config:cache`) all config is still available.
+
+**Add to `config/services.php`:**
+
+```php
+'bitinflow-accounts' => [
+    'client_id' => env('BITINFLOW_ACCOUNTS_KEY'),
+    'client_secret' => env('BITINFLOW_ACCOUNTS_SECRET'),
+    'redirect' => env('BITINFLOW_ACCOUNTS_REDIRECT_URI')
+],
+```
+
 ## Examples
 
 #### Basic
@@ -114,10 +149,33 @@ BitinflowAccounts::withClientId('abc123')->withToken('abcdef123456')->getAuthedU
 
 ## Documentation
 
-### Users
+### Charges
 
 ```php
-public function getAuthedUser()
+public function createCharge(array $parameters)
+public function getCharge(string $id)
+public function updateCharge(string $id, array $parameters)
+public function captureCharge(string $id, array $parameters = array ())
+```
+
+### Documents
+
+```php
+public function createDocument(array $parameters)
+public function createDocumentDownloadUrl(string $identifier, CarbonInterface $expiresAt = NULL)
+```
+
+### Oauth
+
+```php
+public function retrievingToken(string $grantType, array $attributes)
+```
+
+### PaymentIntents
+
+```php
+public function getPaymentIntent(string $id)
+public function createPaymentIntent(array $parameters)
 ```
 
 ### SshKeys
@@ -128,7 +186,14 @@ public function createSshKey(string $publicKey, string $name = NULL)
 public function deleteSshKey(int $id)
 ```
 
-[**OAuth Scopes Enums**](https://git.preuss.io/ghostzero/bitinflow-accounts/blob/master/src/Enums/Scope.php)
+### Users
+
+```php
+public function getAuthedUser()
+public function createUser(array $parameters)
+```
+
+[**OAuth Scopes Enums**](https://github.com/ghostzero/bitinflow-accounts/blob/master/src/Enums/Scope.php)
 
 ## Development
 
@@ -139,7 +204,7 @@ composer test
 ```
 
 ```shell
-CLIENT_ID=xxxx CLIENT_KEY=yyyy CLIENT_ACCESS_TOKEN=zzzz composer test
+BASE_URL=xxxx CLIENT_ID=xxxx CLIENT_KEY=yyyy CLIENT_ACCESS_TOKEN=zzzz composer test
 ```
 
 #### Generate Documentation

README.stub

@@ -9,9 +9,10 @@ PHP bitinflow Accounts API Client for Laravel 5+
 ## Table of contents
 
 1. [Installation](#installation)
-2. [Configuration](#configuration)
-3. [Examples](#examples)
-4. [Documentation](#documentation)
+2. [Event Listener](#event-listener)
+3. [Configuration](#configuration)
+4. [Examples](#examples)
+5. [Documentation](#documentation)
 6. [Development](#Development)
 
 ## Installation
@@ -28,6 +29,28 @@ Add Service Provider to your `app.php` configuration file:
 GhostZero\BitinflowAccounts\Providers\BitinflowAccountsServiceProvider::class,
 ```
 
+## Event Listener
+
+- Add `SocialiteProviders\Manager\SocialiteWasCalled` event to your `listen[]` array in `app/Providers/EventServiceProvider`.
+- Add your listeners (i.e. the ones from the providers) to the `SocialiteProviders\Manager\SocialiteWasCalled[]` that you just created.
+- The listener that you add for this provider is `'GhostZero\\BitinflowAccounts\\Socialite\\BitinflowExtendSocialite@handle',`.
+- Note: You do not need to add anything for the built-in socialite providers unless you override them with your own providers.
+
+
+```
+/**
+ * The event handler mappings for the application.
+ *
+ * @var array
+ */
+protected $listen = [
+    \SocialiteProviders\Manager\SocialiteWasCalled::class => [
+        // add your listeners (aka providers) here
+        'GhostZero\\BitinflowAccounts\\Socialite\\BitinflowExtendSocialite@handle',
+    ],
+];
+```
+
 ## Configuration
 
 Copy configuration to config folder:
@@ -44,6 +67,18 @@ BITINFLOW_ACCOUNTS_SECRET=
 BITINFLOW_ACCOUNTS_REDIRECT_URI=http://localhost
 ```
 
+You will need to add an entry to the services configuration file so that after config files are cached for usage in production environment (Laravel command `artisan config:cache`) all config is still available.
+
+**Add to `config/services.php`:**
+
+```php
+'bitinflow-accounts' => [
+    'client_id' => env('BITINFLOW_ACCOUNTS_KEY'),
+    'client_secret' => env('BITINFLOW_ACCOUNTS_SECRET'),
+    'redirect' => env('BITINFLOW_ACCOUNTS_REDIRECT_URI')
+],
+```
+
 ## Examples
 
 #### Basic
@@ -116,7 +151,7 @@ BitinflowAccounts::withClientId('abc123')->withToken('abcdef123456')->getAuthedU
 
 <!-- GENERATED-DOCS -->
 
-[**OAuth Scopes Enums**](https://git.preuss.io/ghostzero/bitinflow-accounts/blob/master/src/Enums/Scope.php)
+[**OAuth Scopes Enums**](https://github.com/ghostzero/bitinflow-accounts/blob/master/src/Enums/Scope.php)
 
 ## Development
 
@@ -127,7 +162,7 @@ composer test
 ```
 
 ```shell
-CLIENT_ID=xxxx CLIENT_KEY=yyyy CLIENT_ACCESS_TOKEN=zzzz composer test
+BASE_URL=xxxx CLIENT_ID=xxxx CLIENT_KEY=yyyy CLIENT_ACCESS_TOKEN=zzzz composer test
 ```
 
 #### Generate Documentation

composer.json

@@ -10,23 +10,25 @@
     ],
     "require": {
         "php": ">=7.2",
-        "illuminate/support": "^5.5",
-        "illuminate/console": "^5.5",
-        "guzzlehttp/guzzle": "^6.3"
+        "ext-json": "*",
+        "illuminate/support": "^7.0",
+        "illuminate/console": "^7.0",
+        "guzzlehttp/guzzle": "^6.3",
+        "socialiteproviders/manager": "^3.4"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0",
-        "orchestra/testbench": "~3.8.0",
+        "orchestra/testbench": "~4.0",
         "codedungeon/phpunit-result-printer": "^0.26.2"
     },
     "autoload": {
         "psr-4": {
-            "GhostZero\\BitinflowAccounts\\": "src"
+            "GhostZero\\BitinflowAccounts\\": "src/GhostZero/BitinflowAccounts"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "GhostZero\\BitinflowAccounts\\Tests\\": "tests"
+            "GhostZero\\BitinflowAccounts\\Tests\\": "tests/GhostZero/BitinflowAccounts"
         }
     },
     "scripts": {

config/bitinflow-accounts-api.php

@@ -4,4 +4,5 @@ return [
     'client_id'     => env('BITINFLOW_ACCOUNTS_KEY', ''),
     'client_secret' => env('BITINFLOW_ACCOUNTS_SECRET', ''),
     'redirect_url'  => env('BITINFLOW_ACCOUNTS_REDIRECT_URI', ''),
+    'base_url'      => env('BITINFLOW_ACCOUNTS_BASE_URI', ''),
 ];

generator/generate-docs.php

@@ -76,6 +76,8 @@ $markdown = collect(class_uses(BitinflowAccounts::class))
         return $markdown;
     })->join(PHP_EOL . PHP_EOL);
 
+$markdown = str_replace("array (\n)", '[]', $markdown);
+
 $content = file_get_contents(__DIR__ . '/../README.stub');
 
 $content = str_replace('<!-- GENERATED-DOCS -->', $markdown, $content);

src/Enums/Scope.php

@@ -1,22 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace GhostZero\BitinflowAccounts\Enums;
-
-/**
- * @author René Preuß <rene@preuss.io>
- */
-class Scope
-{
-
-    /*
-     * v0 API
-     */
-
-    // Deprecated scope.
-    const API = 'api';
-
-    // Read nonpublic user information, including email address.
-    const READ_USER = 'read_user';
-}

src/GhostZero/BitinflowAccounts/ApiOperations/Delete.php

@@ -5,8 +5,13 @@ declare(strict_types=1);
 namespace GhostZero\BitinflowAccounts\ApiOperations;
 
 use GhostZero\BitinflowAccounts\Helpers\Paginator;
+use GhostZero\BitinflowAccounts\Result;
 
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
 trait Delete
 {
-    abstract public function delete(string $path = '', array $parameters = [], Paginator $paginator = null);
+
+    abstract public function delete(string $path = '', array $parameters = [], Paginator $paginator = null): Result;
 }

src/GhostZero/BitinflowAccounts/ApiOperations/Get.php

@@ -5,8 +5,13 @@ declare(strict_types=1);
 namespace GhostZero\BitinflowAccounts\ApiOperations;
 
 use GhostZero\BitinflowAccounts\Helpers\Paginator;
+use GhostZero\BitinflowAccounts\Result;
 
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
 trait Get
 {
-    abstract public function get(string $path = '', array $parameters = [], Paginator $paginator = null);
+
+    abstract public function get(string $path = '', array $parameters = [], Paginator $paginator = null): Result;
 }

src/GhostZero/BitinflowAccounts/ApiOperations/Post.php

@@ -5,8 +5,13 @@ declare(strict_types=1);
 namespace GhostZero\BitinflowAccounts\ApiOperations;
 
 use GhostZero\BitinflowAccounts\Helpers\Paginator;
+use GhostZero\BitinflowAccounts\Result;
 
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
 trait Post
 {
-    abstract public function post(string $path = '', array $parameters = [], Paginator $paginator = null);
+
+    abstract public function post(string $path = '', array $parameters = [], Paginator $paginator = null): Result;
 }

src/GhostZero/BitinflowAccounts/ApiOperations/Put.php

@@ -5,8 +5,13 @@ declare(strict_types=1);
 namespace GhostZero\BitinflowAccounts\ApiOperations;
 
 use GhostZero\BitinflowAccounts\Helpers\Paginator;
+use GhostZero\BitinflowAccounts\Result;
 
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
 trait Put
 {
-    abstract public function put(string $path = '', array $parameters = [], Paginator $paginator = null);
+
+    abstract public function put(string $path = '', array $parameters = [], Paginator $paginator = null): Result;
 }

src/GhostZero/BitinflowAccounts/BitinflowAccounts.php

@@ -2,6 +2,7 @@
 
 namespace GhostZero\BitinflowAccounts;
 
+use GhostZero\BitinflowAccounts\ApiOperations;
 use GhostZero\BitinflowAccounts\Exceptions\RequestRequiresAuthenticationException;
 use GhostZero\BitinflowAccounts\Exceptions\RequestRequiresClientIdException;
 use GhostZero\BitinflowAccounts\Exceptions\RequestRequiresRedirectUriException;
@@ -17,11 +18,19 @@ use GuzzleHttp\Exception\RequestException;
 class BitinflowAccounts
 {
 
-    use Traits\UsersTrait;
+    use Traits\ChargesTrait;
+    use Traits\DocumentsTrait;
+    use Traits\OauthTrait;
+    use Traits\PaymentIntentsTrait;
     use Traits\SshKeysTrait;
+    use Traits\UsersTrait;
 
-    const BASE_URI = 'https://accounts.bitinflow.com/api/';
-    const OAUTH_BASE_URI = 'https://accounts.bitinflow.com/api/';
+    use ApiOperations\Delete;
+    use ApiOperations\Get;
+    use ApiOperations\Post;
+    use ApiOperations\Put;
+
+    private static $baseUrl = 'https://accounts.bitinflow.com/api/';
 
     /**
      * Guzzle is used to make http requests.
@@ -73,11 +82,24 @@ class BitinflowAccounts
         if ($redirectUri = config('bitinflow-accounts-api.redirect_url')) {
             $this->setRedirectUri($redirectUri);
         }
+        if ($redirectUri = config('bitinflow-accounts-api.base_url')) {
+            self::setBaseUrl($redirectUri);
+        }
         $this->client = new Client([
-            'base_uri' => self::BASE_URI,
+            'base_uri' => self::$baseUrl,
         ]);
     }
 
+    /**
+     * @param string $baseUrl
+     *
+     * @internal only for internal and debug purposes.
+     */
+    public static function setBaseUrl(string $baseUrl): void
+    {
+        self::$baseUrl = $baseUrl;
+    }
+
     /**
      * Get client id.
      * @return string
@@ -95,7 +117,7 @@ class BitinflowAccounts
     /**
      * Set client id.
      *
-     * @param  string $clientId bitinflow Accounts client id
+     * @param string $clientId bitinflow Accounts client id
      *
      * @return void
      */
@@ -107,7 +129,7 @@ class BitinflowAccounts
     /**
      * Fluid client id setter.
      *
-     * @param  string $clientId bitinflow Accounts client id.
+     * @param string $clientId bitinflow Accounts client id.
      *
      * @return self
      */
@@ -135,7 +157,7 @@ class BitinflowAccounts
     /**
      * Set client secret.
      *
-     * @param  string $clientSecret bitinflow Accounts client secret
+     * @param string $clientSecret bitinflow Accounts client secret
      *
      * @return void
      */
@@ -147,7 +169,7 @@ class BitinflowAccounts
     /**
      * Fluid client secret setter.
      *
-     * @param  string $clientSecret bitinflow Accounts client secret
+     * @param string $clientSecret bitinflow Accounts client secret
      *
      * @return self
      */
@@ -175,7 +197,7 @@ class BitinflowAccounts
     /**
      * Set redirect url.
      *
-     * @param  string $redirectUri
+     * @param string $redirectUri
      *
      * @return void
      */
@@ -187,7 +209,7 @@ class BitinflowAccounts
     /**
      * Fluid redirect url setter.
      *
-     * @param  string $redirectUri
+     * @param string $redirectUri
      *
      * @return self
      */
@@ -216,7 +238,7 @@ class BitinflowAccounts
     /**
      * Set OAuth token.
      *
-     * @param  string $token bitinflow Accounts OAuth token
+     * @param string $token bitinflow Accounts OAuth token
      *
      * @return void
      */
@@ -228,7 +250,7 @@ class BitinflowAccounts
     /**
      * Fluid OAuth token setter.
      *
-     * @param  string $token bitinflow Accounts OAuth token
+     * @param string $token bitinflow Accounts OAuth token
      *
      * @return self
      */
@@ -248,7 +270,7 @@ class BitinflowAccounts
      * @throws GuzzleException
      * @throws RequestRequiresClientIdException
      */
-    public function get(string $path = '', array $parameters = [], Paginator $paginator = null)
+    public function get(string $path = '', array $parameters = [], Paginator $paginator = null): Result
     {
         return $this->query('GET', $path, $parameters, $paginator);
     }
@@ -262,7 +284,7 @@ class BitinflowAccounts
      * @throws GuzzleException
      * @throws RequestRequiresClientIdException
      */
-    public function post(string $path = '', array $parameters = [], Paginator $paginator = null)
+    public function post(string $path = '', array $parameters = [], Paginator $paginator = null): Result
     {
         return $this->query('POST', $path, $parameters, $paginator);
     }
@@ -276,7 +298,7 @@ class BitinflowAccounts
      * @throws GuzzleException
      * @throws RequestRequiresClientIdException
      */
-    public function delete(string $path = '', array $parameters = [], Paginator $paginator = null)
+    public function delete(string $path = '', array $parameters = [], Paginator $paginator = null): Result
     {
         return $this->query('DELETE', $path, $parameters, $paginator);
     }
@@ -290,7 +312,7 @@ class BitinflowAccounts
      * @throws GuzzleException
      * @throws RequestRequiresClientIdException
      */
-    public function put(string $path = '', array $parameters = [], Paginator $paginator = null)
+    public function put(string $path = '', array $parameters = [], Paginator $paginator = null): Result
     {
         return $this->query('PUT', $path, $parameters, $paginator);
     }
@@ -304,7 +326,7 @@ class BitinflowAccounts
      * @throws GuzzleException
      * @throws RequestRequiresClientIdException
      */
-    public function json(string $method, string $path = '', array $body = null)
+    public function json(string $method, string $path = '', array $body = null): Result
     {
         if ($body) {
             $body = json_encode(['data' => $body]);
@@ -316,11 +338,11 @@ class BitinflowAccounts
     /**
      * Build query & execute.
      *
-     * @param  string     $method HTTP method
-     * @param  string     $path Query path
-     * @param  array      $parameters Query parameters
-     * @param  Paginator  $paginator Paginator object
-     * @param  mixed|null $jsonBody JSON data
+     * @param string     $method HTTP method
+     * @param string     $path Query path
+     * @param array      $parameters Query parameters
+     * @param Paginator  $paginator Paginator object
+     * @param mixed|null $jsonBody JSON data
      *
      * @return Result     Result object
      * @throws GuzzleException
@@ -335,7 +357,7 @@ class BitinflowAccounts
             $response = $this->client->request($method, $path, [
                 'headers' => $this->buildHeaders($jsonBody ? true : false),
                 'query' => $this->buildQuery($parameters),
-                'json' => $jsonBody ? $jsonBody : null,
+                'json' => $jsonBody ?: null,
             ]);
             $result = new Result($response, null, $paginator);
         } catch (RequestException $exception) {
@@ -349,7 +371,7 @@ class BitinflowAccounts
     /**
      * Build query with support for multiple smae first-dimension keys.
      *
-     * @param  array $query
+     * @param array $query
      *
      * @return string
      */
@@ -369,7 +391,7 @@ class BitinflowAccounts
     /**
      * Build headers for request.
      *
-     * @param  bool $json Body is JSON
+     * @param bool $json Body is JSON
      *
      * @return array
      * @throws RequestRequiresClientIdException
@@ -378,13 +400,13 @@ class BitinflowAccounts
     {
         $headers = [
             'Client-ID' => $this->getClientId(),
+            'Accept' => 'application/json',
         ];
         if ($this->token) {
             $headers['Authorization'] = 'Bearer ' . $this->token;
         }
         if ($json) {
             $headers['Content-Type'] = 'application/json';
-            $headers['Accept'] = 'application/json';
         }
 
         return $headers;

src/GhostZero/BitinflowAccounts/Enums/DocumentType.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Enums;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class DocumentType
+{
+    // Read authorized user´s email address.
+    public const TYPE_PDF_INVOICE = 'pdf.invoice';
+
+    // Manage a authorized user object.
+    public const TYPE_PDF_ORDER = 'pdf.order';
+}

src/GhostZero/BitinflowAccounts/Enums/Scope.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Enums;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class Scope
+{
+
+    /*
+     * v0 API
+     */
+
+    // Deprecated scope.
+    public const API = 'api';
+
+    // Read nonpublic user information, including email address.
+    public const READ_USER = 'read_user';
+
+    /*
+     * v1 API
+     */
+
+    // Read authorized user´s email address.
+    public const USERS_READ_EMAIL = 'users:read:email';
+
+    // Manage a authorized user object.
+    public const USERS_EDIT = 'users:edit';
+
+    public const USERS_CREATE = 'users:create';
+
+    // Read authorized user´s transactions.
+    public const TRANSACTIONS_READ = 'transactions:read';
+
+    // Create a new charge for the authorized user.
+    public const CHARGES_CREATE = 'charges:create';
+}

src/GhostZero/BitinflowAccounts/Providers/BitinflowAccountsServiceProvider.php

@@ -17,7 +17,7 @@ class BitinflowAccountsServiceProvider extends ServiceProvider
     public function boot()
     {
         $this->publishes([
-            dirname(__DIR__) . '/../config/bitinflow-accounts-api.php' => config_path('bitinflow-accounts-api.php'),
+            dirname(__DIR__) . '/../../../config/bitinflow-accounts-api.php' => config_path('bitinflow-accounts-api.php'),
         ], 'config');
     }
 
@@ -28,7 +28,7 @@ class BitinflowAccountsServiceProvider extends ServiceProvider
     public function register()
     {
         $this->mergeConfigFrom(
-            dirname(__DIR__) . '/../config/bitinflow-accounts-api.php', 'bitinflow-accounts-api'
+            dirname(__DIR__) . '/../../../config/bitinflow-accounts-api.php', 'bitinflow-accounts-api'
         );
         $this->app->singleton(BitinflowAccounts::class, function () {
             return new BitinflowAccounts;
@@ -43,4 +43,4 @@ class BitinflowAccountsServiceProvider extends ServiceProvider
     {
         return [BitinflowAccounts::class];
     }
-}
+}

src/GhostZero/BitinflowAccounts/Result.php

@@ -6,7 +6,7 @@ namespace GhostZero\BitinflowAccounts;
 
 use Exception;
 use GhostZero\BitinflowAccounts\Helpers\Paginator;
-use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\ResponseInterface;
 use stdClass;
 
 
@@ -60,7 +60,7 @@ class Result
 
     /**
      * Original Guzzle HTTP Response.
-     * @var Response
+     * @var ResponseInterface|null
      */
     public $response;
 
@@ -73,17 +73,17 @@ class Result
     /**
      * Constructor,
      *
-     * @param Response        $response HTTP response
+     * @param ResponseInterface|null   $response HTTP response
      * @param Exception|mixed $exception Exception, if present
      * @param null|Paginator  $paginator Paginator, if present
      */
-    public function __construct(Response $response, Exception $exception = null, Paginator $paginator = null)
+    public function __construct(?ResponseInterface $response, Exception $exception = null, Paginator $paginator = null)
     {
         $this->response = $response;
         $this->success = $exception === null;
         $this->exception = $exception;
-        $this->status = $response->getStatusCode();
-        $jsonResponse = @json_decode($response->getBody()->getContents());
+        $this->status = $response ? $response->getStatusCode() : 500;
+        $jsonResponse = $response ? @json_decode($response->getBody()->getContents(), false) : null;
         if ($jsonResponse !== null) {
             $this->setProperty($jsonResponse, 'data');
             $this->setProperty($jsonResponse, 'total');
@@ -99,10 +99,10 @@ class Result
      * @param string      $responseProperty Response property name
      * @param string|null $attribute Class property name
      */
-    private function setProperty(stdClass $jsonResponse, string $responseProperty, string $attribute = null)
+    private function setProperty(stdClass $jsonResponse, string $responseProperty, string $attribute = null): void
     {
         $classAttribute = $attribute ?? $responseProperty;
-        if (!empty($jsonResponse) && property_exists($jsonResponse, $responseProperty)) {
+        if ($jsonResponse !== null && property_exists($jsonResponse, $responseProperty)) {
             $this->{$classAttribute} = $jsonResponse->{$responseProperty};
         } elseif ($responseProperty === 'data') {
             $this->{$classAttribute} = $jsonResponse;
@@ -174,7 +174,7 @@ class Result
      * Set the Paginator to fetch the first set of results.
      * @return null|Paginator
      */
-    public function first()
+    public function first(): ?Paginator
     {
         return $this->paginator !== null ? $this->paginator->first() : null;
     }
@@ -183,7 +183,7 @@ class Result
      * Set the Paginator to fetch the next set of results.
      * @return null|Paginator
      */
-    public function next()
+    public function next(): ?Paginator
     {
         return $this->paginator !== null ? $this->paginator->next() : null;
     }
@@ -192,7 +192,7 @@ class Result
      * Set the Paginator to fetch the last set of results.
      * @return null|Paginator
      */
-    public function back()
+    public function back(): ?Paginator
     {
         return $this->paginator !== null ? $this->paginator->back() : null;
     }
@@ -200,7 +200,7 @@ class Result
     /**
      * Get rate limit information.
      *
-     * @param  string|null $key Get defined index
+     * @param string|null $key Get defined index
      *
      * @return string|array|null
      */
@@ -224,8 +224,8 @@ class Result
     /**
      * Insert users in data response.
      *
-     * @param  string $identifierAttribute Attribute to identify the users
-     * @param  string $insertTo Data index to insert user data
+     * @param string $identifierAttribute Attribute to identify the users
+     * @param string $insertTo Data index to insert user data
      *
      * @return self
      */
@@ -235,7 +235,7 @@ class Result
         $userIds = collect($data)->map(function ($item) use ($identifierAttribute) {
             return $item->{$identifierAttribute};
         })->toArray();
-        if (count($userIds) == 0) {
+        if (count($userIds) === 0) {
             return $this;
         }
         $users = collect($this->bitinflow->getUsersByIds($userIds)->data);

src/GhostZero/BitinflowAccounts/Socialite/BitinflowExtendSocialite.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace GhostZero\BitinflowAccounts\Socialite;
+
+use SocialiteProviders\Manager\SocialiteWasCalled;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class BitinflowExtendSocialite
+{
+
+    /**
+     * Register the provider.
+     *
+     * @param SocialiteWasCalled $socialiteWasCalled
+     */
+    public function handle(SocialiteWasCalled $socialiteWasCalled)
+    {
+        $socialiteWasCalled->extendSocialite(
+            'bitinflow-accounts', __NAMESPACE__ . '\Provider'
+        );
+    }
+}

src/GhostZero/BitinflowAccounts/Socialite/Provider.php

@@ -0,0 +1,89 @@
+<?php
+
+namespace GhostZero\BitinflowAccounts\Socialite;
+
+use GhostZero\BitinflowAccounts\Enums\Scope;
+use Illuminate\Support\Arr;
+use Laravel\Socialite\Two\ProviderInterface;
+use SocialiteProviders\Manager\OAuth2\AbstractProvider;
+use SocialiteProviders\Manager\OAuth2\User;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class Provider extends AbstractProvider implements ProviderInterface
+{
+
+    /**
+     * Unique Provider Identifier.
+     */
+    const IDENTIFIER = 'BITINFLOW_ACCOUNTS';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $scopes = [Scope::READ_USER];
+
+    /**
+     * {@inherticdoc}.
+     */
+    protected $scopeSeparator = ' ';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAuthUrl($state)
+    {
+        return $this->buildAuthUrlFromBase(
+            'https://accounts.bitinflow.com/oauth/authorize', $state
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getTokenUrl()
+    {
+        return 'https://accounts.bitinflow.com/oauth/token';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getUserByToken($token)
+    {
+        $response = $this->getHttpClient()->get(
+            'https://accounts.bitinflow.com/api/user', [
+            'headers' => [
+                'Accept' => 'application/json',
+                'Authorization' => 'Bearer ' . $token,
+            ],
+        ]);
+
+        return json_decode($response->getBody()->getContents(), true);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function mapUserToObject(array $user)
+    {
+        return (new User())->setRaw($user)->map([
+            'id' => $user['id'],
+            'nickname' => $user['name'],
+            'name' => $user['name'],
+            'email' => Arr::get($user, 'email'),
+            'avatar' => $user['avatar'],
+        ]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getTokenFields($code)
+    {
+        return array_merge(parent::getTokenFields($code), [
+            'grant_type' => 'authorization_code',
+        ]);
+    }
+}

src/GhostZero/BitinflowAccounts/Traits/ChargesTrait.php

@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Traits;
+
+use GhostZero\BitinflowAccounts\ApiOperations\Get;
+use GhostZero\BitinflowAccounts\ApiOperations\Post;
+use GhostZero\BitinflowAccounts\ApiOperations\Put;
+use GhostZero\BitinflowAccounts\Result;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+trait ChargesTrait
+{
+
+    use Get, Post, Put;
+
+    /**
+     * Create a Charge object
+     *
+     * @param array $parameters
+     *
+     * @return Result Result object
+     */
+    public function createCharge(array $parameters): Result
+    {
+        return $this->post('charges', $parameters);
+    }
+
+    /**
+     * Get a Charge object
+     *
+     * @param string $id
+     *
+     * @return Result Result object
+     */
+    public function getCharge(string $id): Result
+    {
+        return $this->get("charges/$id");
+    }
+
+    /**
+     * Update a Charge object
+     *
+     * @param string $id
+     * @param array  $parameters
+     *
+     * @return Result Result object
+     */
+    public function updateCharge(string $id, array $parameters): Result
+    {
+        return $this->put("charges/$id", $parameters);
+    }
+
+    /**
+     * Capture a Charge object
+     *
+     * @param string $id
+     * @param array  $parameters
+     *
+     * @return Result Result object
+     */
+    public function captureCharge(string $id, array $parameters = []): Result
+    {
+        return $this->post("charges/$id/capture", $parameters);
+    }
+}

src/GhostZero/BitinflowAccounts/Traits/DocumentsTrait.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Traits;
+
+use Carbon\CarbonInterface;
+use GhostZero\BitinflowAccounts\ApiOperations\Get;
+use GhostZero\BitinflowAccounts\ApiOperations\Post;
+use GhostZero\BitinflowAccounts\Result;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+trait DocumentsTrait
+{
+
+    use Get, Post;
+
+    /**
+     * Create a Documents object
+     *
+     * @param array $parameters
+     *
+     * @return Result
+     */
+    public function createDocument(array $parameters): Result
+    {
+        return $this->post('documents', $parameters);
+    }
+
+    /**
+     * Create a Documents download url
+     *
+     * @param string               $identifier
+     * @param CarbonInterface|null $expiresAt
+     *
+     * @return Result
+     */
+    public function createDocumentDownloadUrl(string $identifier, ?CarbonInterface $expiresAt = null): Result
+    {
+        return $this->post("documents/$identifier/download-url", [
+            'expires_at' => $expiresAt
+                ? $expiresAt->toDateTimeString()
+                : now()->addHour()->toDateTimeString(),
+        ]);
+    }
+}

src/GhostZero/BitinflowAccounts/Traits/OauthTrait.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Traits;
+
+use GhostZero\BitinflowAccounts\Result;
+use GuzzleHttp\Exception\RequestException;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+trait OauthTrait
+{
+
+    /**
+     * Retrieving a oauth token using a given grant type.
+     *
+     * @param string $grantType
+     * @param array  $attributes
+     *
+     * @return Result
+     */
+    public function retrievingToken(string $grantType, array $attributes): Result
+    {
+        try {
+            $response = $this->client->request('POST', '/oauth/token', [
+                    'form_params' => $attributes + [
+                        'grant_type' => $grantType,
+                        'client_id' => $this->getClientId(),
+                        'client_secret' => $this->getClientSecret(),
+                    ],
+                ]);
+
+            $result = new Result($response, null);
+        } catch (RequestException $exception) {
+            $result = new Result($exception->getResponse(), $exception);
+        }
+
+        $result->bitinflow = $this;
+
+        return $result;
+    }
+}

src/GhostZero/BitinflowAccounts/Traits/PaymentIntentsTrait.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Traits;
+
+use GhostZero\BitinflowAccounts\ApiOperations\Get;
+use GhostZero\BitinflowAccounts\ApiOperations\Post;
+use GhostZero\BitinflowAccounts\Result;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+trait PaymentIntentsTrait
+{
+
+    use Get, Post;
+
+    /**
+     * Get a Payment Intent object
+     *
+     * @param string $id
+     *
+     * @return Result         Result object
+     */
+    public function getPaymentIntent(string $id): Result
+    {
+        return $this->get("payment-intents/$id");
+    }
+
+    /**
+     * Create a Payment Intent object
+     *
+     * @param array $parameters
+     *
+     * @return Result
+     */
+    public function createPaymentIntent(array $parameters): Result
+    {
+        return $this->post('payment-intents', $parameters);
+    }
+}

src/GhostZero/BitinflowAccounts/Traits/SshKeysTrait.php

@@ -27,7 +27,7 @@ trait SshKeysTrait
     }
 
     /**
-     * Get currently authed user with Bearer Token
+     * Creates ssh key for the currently authed user
      *
      * @param string      $publicKey
      * @param string|null $name
@@ -39,11 +39,11 @@ trait SshKeysTrait
         return $this->post('ssh-keys', [
             'public_key' => $publicKey,
             'name' => $name,
-        ], null);
+        ]);
     }
 
     /**
-     * Get currently authed user with Bearer Token
+     * Deletes a given ssh key for the currently authed user
      *
      * @param int $id
      *
@@ -51,6 +51,6 @@ trait SshKeysTrait
      */
     public function deleteSshKey(int $id): Result
     {
-        return $this->delete("ssh-keys/$id", [], null);
+        return $this->delete("ssh-keys/$id", []);
     }
 }

src/GhostZero/BitinflowAccounts/Traits/UsersTrait.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Traits;
+
+use GhostZero\BitinflowAccounts\ApiOperations\Get;
+use GhostZero\BitinflowAccounts\Result;
+
+trait UsersTrait
+{
+
+    use Get;
+
+    /**
+     * Get currently authed user with Bearer Token
+     * @return Result Result object
+     */
+    public function getAuthedUser(): Result
+    {
+        return $this->get('users/me');
+    }
+
+    /**
+     * Creates a new user on behalf of the current user.
+     *
+     * @param array $parameters
+     *
+     * @return Result
+     */
+    public function createUser(array $parameters): Result
+    {
+        return $this->post('v2/users', $parameters);
+    }
+
+    /**
+     * Checks if the given email exists.
+     *
+     * @param string $email
+     *
+     * @return Result
+     */
+    public function isEmailExisting(string $email): Result
+    {
+        return $this->post('v2/users/check-email', [
+            'email' => $email,
+        ]);
+    }
+}

src/Traits/UsersTrait.php

@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace GhostZero\BitinflowAccounts\Traits;
-
-use GhostZero\BitinflowAccounts\ApiOperations\Get;
-use GhostZero\BitinflowAccounts\Result;
-
-trait UsersTrait
-{
-
-    use Get;
-
-    /**
-     * Get currently authed user with Bearer Token
-     * @return Result Result object
-     */
-    public function getAuthedUser(): Result
-    {
-        return $this->get('users/me', [], null);
-    }
-}

tests/ApiUsersTest.php

@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace GhostZero\BitinflowAccounts\Tests;
-
-use GhostZero\BitinflowAccounts\Result;
-use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
-
-/**
- * @author René Preuß <rene@preuss.io>
- */
-class ApiUsersTest extends ApiTestCase
-{
-
-    public function testGetAuthedUser()
-    {
-        $this->getClient()->withToken($this->getToken());
-        $this->registerResult($result = $this->getClient()->getAuthedUser());
-        $this->assertInstanceOf(Result::class, $result);
-        $this->assertEquals('rene@preuss.io', $result->data()->email);
-    }
-}

tests/GhostZero/BitinflowAccounts/ApiChargesTest.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Tests;
+
+use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ApiChargesTest extends ApiTestCase
+{
+
+    public function testCaptureWithoutCapture(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $result = $this->getClient()->createCharge([
+            'amount' => 2000,
+            'currency' => 'usd',
+            'source' => 'tok_visa',
+            'description' => 'Charge for jenny.rosen@example.com',
+        ]);
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertEquals(2000, $result->data()->amount);
+        $this->assertTrue($result->data()->captured);
+    }
+
+    public function testChargeWithCapture(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $result = $this->getClient()->createCharge([
+            'amount' => 2000,
+            'currency' => 'usd',
+            'source' => 'tok_visa',
+            'description' => 'Charge for jenny.rosen@example.com',
+            'capture' => false, // default is true for instant capture
+            'metadata' => [
+                'foo' => 'bar',
+            ],
+            'receipt_email' => 'rene+unittest@bitinflow.com',
+        ]);
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertEquals(2000, $result->data()->amount);
+        $this->assertFalse($result->data()->captured);
+
+        $charge = $result->data();
+
+        $result = $this->getClient()->captureCharge($charge->id);
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertEquals(2000, $result->data()->amount);
+        $this->assertTrue($result->data()->captured);
+    }
+}

tests/GhostZero/BitinflowAccounts/ApiDocumentsTest.php

@@ -0,0 +1,87 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Tests;
+
+use GhostZero\BitinflowAccounts\Enums\DocumentType;
+use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ApiDocumentsTest extends ApiTestCase
+{
+
+    public function testCreateDocument(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $result = $this->getClient()->createDocument([
+            'branding' => [
+                'primary_color' => '#8284df',
+                'watermark_url' => 'https://fbs.streamkit.gg/img/pdf/wm.png',
+                'logo_url' => 'https://fbs.streamkit.gg/img/pdf/logo_dark_small.png',
+            ],
+            'locale' => 'de',
+            'type' => DocumentType::TYPE_PDF_INVOICE,
+            'data' => $this->createDummyInvoiceData(),
+            'receipt_email' => 'rene+unittest@bitinflow.com',
+        ]);
+
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertArrayHasKey('download_url', $result->data());
+        $this->assertEquals(
+            'rene+unittest@bitinflow.com',
+            $result->data()->receipt_email
+        );
+    }
+
+    public function testGenerateDocumentStoragePath(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $expiresAt = now()->addHours(2);
+
+        $result = $this->getClient()->createDocumentDownloadUrl('1', $expiresAt);
+
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('download_url', $result->data());
+        $this->assertEquals(
+            $expiresAt->toDateTimeString(),
+            $result->data()->expires_at
+        );
+    }
+
+    private function createDummyInvoiceData(): array
+    {
+        return [
+            'id' => 'FBS-IN-1337',
+            'customer' => [
+                'name' => 'GhostZero',
+                'email' => 'rene@preuss.io',
+                'address' => [
+                    'Example Street 123',
+                    '50733 Cologne',
+                    'GERMANY',
+                ],
+            ],
+            'line_items' => [
+                [
+                    'name' => 'T-shirt',
+                    'description' => 'Comfortable cotton t-shirt',
+                    'unit' => 'T-shirt', // optional unit name
+                    'amount' => 1500,
+                    'currency' => 'usd',
+                    'quantity' => 2,
+                ],
+            ],
+            'legal_notice' => 'According to the German §19 UStG no sales tax is calculated. However, the product is a digital good delivered via Internet we generally offer no refunds. The delivery date corresponds to the invoice date.',
+            'already_paid' => true,
+            'created_at' => now()->format('d.m.Y'),
+        ];
+    }
+}

tests/GhostZero/BitinflowAccounts/ApiOauthTest.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Tests;
+
+use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ApiOauthTest extends ApiTestCase
+{
+
+    public function testGetOauthToken(): void
+    {
+        $this->registerResult($result = $this->getClient()->retrievingToken('client_credentials', [
+            'scope' => '',
+        ]));
+        $this->assertTrue($result->success());
+        $this->assertNotEmpty($result->data()->access_token);
+    }
+}

tests/GhostZero/BitinflowAccounts/ApiPaymentIntentsTest.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Tests;
+
+use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ApiPaymentIntentsTest extends ApiTestCase
+{
+    private $paymentIntent;
+
+    public function testCreatePaymentIntent(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $result = $this->getClient()->createPaymentIntent([
+            'payment_method_types' => ['card'],
+            'amount' => 1000,
+            'currency' => 'usd',
+            'application_fee_amount' => 123,
+        ]);
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertArrayHasKey('redirect_url', $result->data());
+        $this->assertEquals(1000, $result->data()->amount);
+
+        // use this payment intent for our next tests
+        $this->paymentIntent = $result->data();
+    }
+
+    public function testGetPaymentIntent(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+
+        $result = $this->getClient()->getPaymentIntent($this->paymentIntent->id);
+        $this->registerResult($result);
+        $this->assertTrue($result->success());
+        $this->assertArrayHasKey('id', $result->data());
+        $this->assertEquals(1000, $result->data()->amount);
+    }
+}

tests/GhostZero/BitinflowAccounts/ApiSshKeysTest.php

@@ -13,15 +13,14 @@ use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
 class ApiSshKeysTest extends ApiTestCase
 {
 
-    public function testGetSshKeyByUserId()
+    public function testGetSshKeyByUserId(): void
     {
         $this->registerResult($result = $this->getClient()->getSshKeysByUserId(38));
-        $this->assertInstanceOf(Result::class, $result);
         $this->assertEquals('rene.preuss@check24.de', $result->shift()->name);
         $this->assertGreaterThanOrEqual(2, $result->count());
     }
 
-    public function testSshKeyManagement()
+    public function testSshKeyManagement(): void
     {
         $customName = 'Hello World!';
         $publicKey = 'ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEA3H7sYVrVCwwYIuRm3on3S9n/BCd2mBJrgCk6xTerbNmt0RyUZ+RtGsK6UYkgnRR2WWq9/Pv2s3RXJXPxbsIEYmKCcTdLUvDk56x9385cIVUX4w016mpe/8lyu+mIdqWYKsJMoab0oReCDX8Y9qBcaffDh8AgmYVN+86gXgoP1ITe9BDYrFiR6U571VyLDVN3OYOYPMF3/L9f0knMfM0T4LrS8oi6faVBCxZHRoBGtGmsTBkE0KwplYQFN2aa4Mxab+rTUFmJr3LYEcJF0J8wNJ3eEDFNOR0254jrjbGGAXGsc+cxJoNzech+GBkRMKMpNU0lds6VxP0ZB25VfzjEmQ== René Preuß';

tests/GhostZero/BitinflowAccounts/ApiUsersTest.php

@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GhostZero\BitinflowAccounts\Tests;
+
+use GhostZero\BitinflowAccounts\Enums\Scope;
+use GhostZero\BitinflowAccounts\Tests\TestCases\ApiTestCase;
+use Illuminate\Support\Str;
+
+/**
+ * @author René Preuß <rene@preuss.io>
+ */
+class ApiUsersTest extends ApiTestCase
+{
+
+    public function testGetAuthedUser(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+        $this->registerResult($result = $this->getClient()->getAuthedUser());
+        $this->assertTrue($result->success());
+        $this->assertEquals('rene@preuss.io', $result->data()->email);
+    }
+
+    public function testEmailAvailabilityNonExisting(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+        $this->registerResult($result = $this->getClient()->isEmailExisting('rene+non-existing@preuss.io'));
+        $this->assertTrue(!$result->success());
+    }
+
+    public function testEmailAvailabilityExisting(): void
+    {
+        $this->getClient()->withToken($this->getToken());
+        $this->registerResult($result = $this->getClient()->isEmailExisting('rene@preuss.io'));
+        $this->assertTrue($result->success());
+    }
+
+    public function testCreateUser(): void
+    {
+        $testEmailAddress = $this->createRandomEmail();
+
+        $this->registerResult($result = $this->getClient()->retrievingToken('client_credentials', [
+            'scope' => Scope::USERS_CREATE,
+        ]));
+
+        $this->getClient()->withToken($result->data()->access_token);
+        $this->registerResult($result = $this->getClient()->createUser([
+            'first_name' => 'René',
+            'last_name' => 'Preuß',
+            'email' => $testEmailAddress,
+            'password' => 'Password1',
+            'password_confirmation' => 'Password1',
+            'terms_accepted' => true,
+        ]));
+        $this->assertTrue($result->success(), $result->error());
+        $this->assertEquals($testEmailAddress, $result->data()->email);
+    }
+
+    private function createRandomEmail(): string
+    {
+        return sprintf('rene+unittest.%s@bitinflow.com', Str::random());
+    }
+}

tests/GhostZero/BitinflowAccounts/ServiceInstantiationTest.php

@@ -14,12 +14,12 @@ use GhostZero\BitinflowAccounts\Tests\TestCases\TestCase;
 class ServiceInstantiationTest extends TestCase
 {
 
-    public function testInstance()
+    public function testInstance(): void
     {
         $this->assertInstanceOf(BitinflowAccounts::class, app(BitinflowAccounts::class));
     }
 
-    public function testFacade()
+    public function testFacade(): void
     {
         $this->assertInstanceOf(BitinflowAccounts::class, BitinflowAccountsFacade::getFacadeRoot());
     }

tests/GhostZero/BitinflowAccounts/TestCases/ApiTestCase.php

@@ -18,6 +18,11 @@ abstract class ApiTestCase extends TestCase
     protected function setUp(): void
     {
         parent::setUp();
+
+        if ($this->getBaseUrl()) {
+            BitinflowAccounts::setBaseUrl($this->getBaseUrl());
+        }
+
         if (!$this->getClientId()) {
             $this->markTestSkipped('No Client-ID given');
         }
@@ -34,6 +39,11 @@ abstract class ApiTestCase extends TestCase
         return $result;
     }
 
+    protected function getBaseUrl()
+    {
+        return getenv('BASE_URL');
+    }
+
     protected function getClientId()
     {
         return getenv('CLIENT_ID');