MAPG-199 fix issues found by PHPStan

src/Http/Request.php

@@ -29,7 +29,7 @@ class Request implements IRequest
         $this->method = $method;
     }
 
-    public function setQuery($query)
+    public function setQuery($query): void
     {
         if (is_string($query)) {
             $this->query = $query;
@@ -38,7 +38,7 @@ class Request implements IRequest
         }
     }
 
-    public function setHeaders(array $headers)
+    public function setHeaders(array $headers): void
     {
         $this->headers = array_merge($this->headers, $headers);
     }
@@ -47,13 +47,13 @@ class Request implements IRequest
     {
         $ch = curl_init();
 
-        if ($this->method === self::HTTP_GET) {
-            $url = $this->url . '?' . $this->query;
-        } elseif ($this->method === self::HTTP_POST) {
-            $url  = $this->url;
+        if ($this->method === self::HTTP_POST) {
+            $url = $this->url;
 
             curl_setopt($ch, CURLOPT_POST, 1);
             curl_setopt($ch, CURLOPT_POSTFIELDS, $this->query);
+        } else {
+            $url = $this->url . '?' . $this->query;
         }
 
         curl_setopt($ch, CURLOPT_URL, $url);

src/Http/Response.php

@@ -14,12 +14,12 @@ class Response implements IResponse
         $this->headers = $headers;
     }
 
-    public function getBody()
+    public function getBody(): string
     {
         return $this->body;
     }
 
-    public function getHeaders()
+    public function getHeaders(): array
     {
         return $this->headers;
     }