.. _-overrideMethodWithParameter-java-:

overrideMethodWithParameter
===========================

Changes the HTTP method of the request to the value of the specified query string parameter. 

Description
-----------

If the query string parameter is not specified this directive has no effect. If the query string is specified as something that is not
a HTTP method, then this directive completes the request with a `501 Not Implemented` response.


This directive is useful for:

- Use in combination with JSONP (JSONP only supports GET)
- Supporting older browsers that lack support for certain HTTP methods. E.g. IE8 does not support PATCH

Example
-------

.. includecode:: ../../../../code/docs/http/javadsl/server/directives/MethodDirectivesExamplesTest.java#overrideMethodWithParameter