Added a note about no body for GET requests (#131)

Added a note about no body for GET requests

Author: Nyholm

clients/buzz-adapter.rst

@@ -54,6 +54,15 @@ Or if you installed the :doc:`discovery </discovery>` layer::
 
     The message factory parameter is mandatory if the discovery layer is not installed.
 
+Be aware
+--------
+
+This adapter violates the Liskov substitution principle in a rare edge case. When the adapter is configured to use
+Buzz' Curl client, it does not send request bodies for request methods such as GET, HEAD and TRACE. A ``RequestException``
+will be thrown if this ever happens.
+
+If you need GET request with a body (e.g. for Elasticsearch) you need to use the Buzz FileGetContents client or choose a different HTTPlug client like Guzzle 6.
+
 .. include:: includes/further-reading-sync.inc
 
 .. _Buzz HTTP client: https://github.com/kriswallsmith/Buzz

spelling_word_list.txt

@@ -5,9 +5,11 @@ boolean
 callables
 cURL
 Diactoros
+Elasticsearch
 fallback
 GitHub
 hotfix
+Liskov
 Symfony
 HTTPlug
 Ivory