Add the auth token request

References #1

composer.json

@@ -9,7 +9,9 @@
         }
     ],
     "minimum-stability": "stable",
-    "require": {},
+    "require": {
+        "symfony/http-client": "^5.0"
+    },
     "autoload": {
         "psr-4": {
             "Opdavies\\Glassboxx\\": "src/Glassboxx/"

src/Glassboxx/Request/AbstractRequest.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Opdavies\Glassboxx\Request;
+
+abstract class AbstractRequest
+{
+    public const BASE_URL = 'https://server.glassboxx.co.uk/rest/V1';
+}

src/Glassboxx/Request/AuthTokenAbstractRequest.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Opdavies\Glassboxx\Request;
+
+use Opdavies\Glassboxx\Config;
+use Symfony\Component\HttpClient\HttpClient;
+use Symfony\Contracts\HttpClient\HttpClientInterface;
+
+final class AuthTokenAbstractRequest extends AbstractRequest
+{
+    public const ENDPOINT = '/integration/admin/token';
+
+    /** @var Config */
+    private $config;
+
+    /** @var HttpClient */
+    private $client;
+
+    public function __construct(HttpClientInterface $client)
+    {
+        $this->client = $client;
+    }
+
+    public function withConfig(Config $config): self
+    {
+        $this->config = $config;
+
+        return $this;
+    }
+
+    public function getToken(): string
+    {
+        $response = $this->client
+            ->request(
+                'POST',
+                self::BASE_URL.self::ENDPOINT,
+                [
+                    'query' => [
+                        'password' => $this->config->getPassword(),
+                        'username' => $this->config->getUsername(),
+                    ],
+                ]
+            );
+
+        return json_decode($response->getContent());
+    }
+}

tests/Glassboxx/Request/AuthTokenRequestTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Opdavies\Glassboxx\Tests\Glassboxx\Request;
+
+use Opdavies\Glassboxx\Config;
+use Opdavies\Glassboxx\Request\AuthTokenAbstractRequest;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpClient\MockHttpClient;
+use Symfony\Contracts\HttpClient\ResponseInterface;
+
+class AuthTokenRequestTest extends TestCase
+{
+    public function testThatItGetsAnAuthCode(): void
+    {
+        $config = $this->getMockBuilder(Config::class)
+            ->onlyMethods([])
+            ->setConstructorArgs(
+                [
+                    'vendor_id' => 123,
+                    'username' => 'opdavies',
+                    'password' => 'secret',
+                ]
+            )
+            ->getMock();
+
+        $mockRepsonse = $this->getMockBuilder(ResponseInterface::class)
+            ->getMock();
+        $mockRepsonse->method('getContent')->willReturn('"abc123"');
+
+        $client = $this->getMockBuilder(MockHttpClient::class)->getMock();
+        $client->expects($this->once())
+            ->method('request')
+            ->with(
+                'POST',
+                AuthTokenAbstractRequest::BASE_URL
+                .AuthTokenAbstractRequest::ENDPOINT,
+                [
+                    'query' => [
+                        'password' => 'secret',
+                        'username' => 'opdavies',
+                    ],
+                ]
+            )
+            ->willReturn($mockRepsonse);
+
+        $token = (new AuthTokenAbstractRequest($client))
+            ->withConfig($config)
+            ->getToken();
+
+        $this->assertSame('abc123', $token);
+    }
+}