feat: add support for OPTIONS requests (#13)

* feat: add support for OPTIONS requests

* feat(doc): add OPTIONS ref. to README

README.md

@@ -137,3 +137,19 @@ Example:
 ```php
 $client->call("my/endpoint")->params(["foo" => "bar"])->delete();
 ```
+
+### `OPTIONS` Request
+
+Make an `OPTIONS` request by chaining `options()` at the end of a method chain. This method will return a `Reflect\Response` object.
+
+Use this method to query Reflect for available request methods.
+
+```php
+Client->options(): Reflect\Response;
+```
+
+Example:
+
+```php
+$client->call("my/endpoint"))->options();
+```

src/Reflect/Client.php

@@ -41,7 +41,6 @@
             if ($this->key) {
                 $this->headers["Authorization"] = "Bearer {$this->key}";
             }
-
             
             // Construct HTTP headers string from array
             $headers = array_map(fn(string $k, string $v): string => "{$k}: {$v}\r\n", array_keys($this->headers), array_values($this->headers));
@@ -137,4 +136,8 @@
             $this->set_request_body($payload);
             return new Response(...$this->http_call(Method::DELETE));
         }
+
+        public function options(): Response {
+            return new Response(...$this->http_call(Method::OPTIONS));
+        }
     }