first commit

app/Services/ExerciseDb/ApiService.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Services\ExerciseDb;
+
+use GuzzleHttp\Client;
+
+class ApiService
+{
+    public const PER_PAGE = 50;
+
+    public const API_BASE_URL = 'https://www.exercisedb.dev';
+    public const EXERCISE_URI = '/api/v1/exercises';
+
+    /**
+     * Fetch a page of exercises from ExerciseDB API.
+     *
+     * @return array<int, array<string, mixed>>
+     */
+    public function fetch(int $page = 1): array
+    {
+        $results = $this->call(
+            self::EXERCISE_URI,
+            $this->pagination($page),
+        );
+
+        $decoded = json_decode($results, true);
+        return is_array($decoded) ? $decoded : [];
+    }
+
+    private function pagination(int $page = 1): array
+    {
+        return [
+            'offset' => ($page - 1) * self::PER_PAGE,
+            'limit' => self::PER_PAGE,
+        ];
+    }
+
+    private function call(
+        string $uri,
+        array $params = [],
+    ): string {
+        $client = new Client();
+
+        $url = self::API_BASE_URL . $uri;
+
+        return $client->request('GET', $url, [
+            'query' => $params,
+        ])->getBody()->getContents();
+    }
+}