View Source Plug.MethodOverride (Plug v1.16.0)

This plug overrides the request's POST method with the method defined in the _method request parameter.

The POST method can be overridden only by these HTTP methods:

  • PUT
  • PATCH
  • DELETE

This plug only replaces the request method if the _method request parameter is a string. If the _method request parameter is not a string, the request method is not changed.

Parse Body Parameters First

This plug expects the body parameters to be already fetched and parsed. Those can be fetched with Plug.Parsers.

This plug doesn't accept any options.

To recap, here are all the conditions that the request must meet in order for this plug to replace the :method field in the Plug.Conn:

  1. The conn's request :method must be POST.
  2. The conn's :body_params must have been fetched already (for example, with Plug.Parsers).
  3. The conn's :body_params must have a _method field that is a string and whose value is "PUT", "PATCH", or "DELETE" (case insensitive).

Usage 

# You'll need to fetch and parse parameters first, for example:
# plug Plug.Parsers, parsers: [:urlencoded, :multipart, :json]

plug Plug.MethodOverride