Packages
eview
0.14.0
0.16.0
retired
0.15.0
0.14.0
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0.12.4
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0.10.0
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0.2.7
0.2.6
0.2.5
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0.2.1
0.2.0
0.1.1
0.1.0
Plug that converts response to Nebo #15 API spec format.
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lib/eview.ex
# TODO: validate headers and other non-json fields
defmodule EView do
@moduledoc """
This plug will take `body_params` from Plug.Conn structure
and re-render it with appropriate structure to `resp_body`.
What is appropriate structure? Take look at [Nebo #15 API Manifest](http://docs.apimanifest.apiary.io/#).
# Example:
Add to your `endpoint.ex` before Plug.Parsers plug:
plug EView
plug EView.Plugs.Idempotency
"""
@behaviour Plug
import Plug.Conn
def init(options), do: options
@spec call(Conn.t(), any) :: Conn.t()
def call(conn, _options) do
conn
|> register_before_send(&update_reponse_body/1)
end
defp update_reponse_body(%{resp_body: []} = conn), do: conn
defp update_reponse_body(%{resp_body: ""} = conn), do: conn
defp update_reponse_body(%{resp_body: nil} = conn), do: conn
defp update_reponse_body(%{resp_body: resp_body} = conn), do: put_response(conn, resp_body)
@doc """
Update `body` and add all meta objects that is required by API Manifest structure.
"""
def wrap_body(body, %Plug.Conn{} = conn) when is_map(body) or is_list(body) do
body
|> EView.Renders.Root.render(conn)
end
def put_response(conn, resp_body) do
case Jason.decode(resp_body) do
{:ok, result} ->
resp =
result
|> wrap_body(conn)
|> Jason.encode!()
%{conn | resp_body: resp}
{:error, _} ->
%{conn | resp_body: resp_body}
end
end
end