PlugResponseReplace

A tiny plug for replacing response fields.

Installation

Add a dependency to your application's mix.exs file:

def deps do
  [
    {:plug_response_replace, "~> 0.2"}
  ]
end

then run mix deps.get.

Usage

Replace :resp_body of Plug.Conn, the iodata() response body with the following :pattern, :replacement, and options fields are completely used to String.replace/4.

defmodule MyHandler do
  use Plug.Builder

  plug PlugResponseReplace, 
    resp_body: [
      pattern: "...",
      replacement: "...",
      options: [] # optional
    ]

  # ... rest of the pipeline
end

Replace :resp_cookies of Plug.Conn, the item of the following :resp_cookies is a tuple contains a pair of response cookie key and value used to Plug.Conn.put_resp_cookie/4, the item may contain an optional options, see Plug.Conn.put_resp_cookie/4 for details.

defmodule MyHandler do
  use Plug.Builder

  plug PlugResponseReplace, 
    resp_cookies: [
      {"key1", "new"},
      {"key1", %{"session" => "abcdef", "timestamp" => 123}, [sign: true]}
    ]

  # ... rest of the pipeline
end

Replace :resp_headers of Plug.Conn, the item of the following :resp_headers is a tuple contains a pair of header key and value used to Plug.Conn.put_resp_header/3.

defmodule MyHandler do
  use Plug.Builder

  plug PlugResponseReplace, 
    resp_headers: [
      {"content-type", "text/plain"}
    ]

  # ... rest of the pipeline
end

Replace :status of Plug.Conn, override the status of repsonse with a proper value.

defmodule MyHandler do
  use Plug.Builder

  plug PlugResponseReplace, 
    status: 401

  # ... rest of the pipeline
end

License

MIT