Added API handler for getting a benchmark's info

src/Controllers/ApiController.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace BitGoblin\Colossus\Controllers;
+
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Slim\Routing\RouteContext;
+use BitGoblin\Colossus\Models\Test;
+
+class ApiController extends Controller {
+
+  public function getBenchmark(Request $request, Response $response, array $args): Response {
+    $benchmark = Benchmark::where('id', $args['benchmark_id'])->first();
+
+    $payload = json_encode($benchmark);
+
+    $response->getBody()->write($payload);
+    return $response
+      ->withHeader('Content-Type', 'application/json');
+  }
+
+}