fix base URI concatenation so path isn't lost

Author: eli-darkly

src/LaunchDarkly/Impl/Integrations/GuzzleFeatureRequester.php

@@ -21,8 +21,8 @@
  */
 class GuzzleFeatureRequester implements FeatureRequester
 {
-    const SDK_FLAGS = "/sdk/flags";
-    const SDK_SEGMENTS = "/sdk/segments";
+    const SDK_FLAGS = "sdk/flags";
+    const SDK_SEGMENTS = "sdk/segments";
     /** @var Client  */
     private $_client;
     /** @var LoggerInterface */
@@ -32,6 +32,10 @@ class GuzzleFeatureRequester implements FeatureRequester
 
     public function __construct(string $baseUri, string $sdkKey, array $options)
     {
+        if (substr($baseUri, strlen($baseUri) - 1, 1) != '/') {
+            $baseUri .= '/';  // ensures that subpaths are concatenated correctly
+        }
+
         $this->_logger = $options['logger'];
         $stack = HandlerStack::create();
         if (class_exists('\Kevinrob\GuzzleCache\CacheMiddleware')) {