73 lines
2.2 KiB
Elixir
73 lines
2.2 KiB
Elixir
defmodule AprsmeWeb.Api.V1.FallbackController do
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@moduledoc """
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Translates controller action results into valid `Plug.Conn` responses.
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See `Phoenix.Controller.action_fallback/1` for more details.
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"""
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use AprsmeWeb, :controller
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use Gettext, backend: AprsmeWeb.Gettext
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alias AprsmeWeb.Api.V1.ErrorJSON
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# This clause handles errors returned by Ecto's insert/update/delete.
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def call(conn, {:error, %Ecto.Changeset{} = changeset}) do
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conn
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|> put_status(:unprocessable_entity)
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|> put_view(json: AprsmeWeb.Api.V1.ChangesetJSON)
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|> render(:error, changeset: changeset)
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end
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# This clause is an example of how to handle resources that cannot be found.
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def call(conn, {:error, :not_found}) do
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conn
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|> put_status(:not_found)
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|> put_view(json: ErrorJSON)
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|> render(:"404")
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end
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# Handle generic errors
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def call(conn, {:error, reason}) when is_atom(reason) do
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status =
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case reason do
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:unauthorized -> :unauthorized
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:forbidden -> :forbidden
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:bad_request -> :bad_request
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_ -> :internal_server_error
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end
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conn
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|> put_status(status)
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|> put_view(json: ErrorJSON)
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|> render(:error, message: format_error_message(reason))
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end
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# Handle string error messages
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def call(conn, {:error, message}) when is_binary(message) do
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conn
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|> put_status(:bad_request)
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|> put_view(json: ErrorJSON)
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|> render(:error, message: message)
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end
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# Handle timeout errors
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def call(conn, :timeout) do
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conn
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|> put_status(:request_timeout)
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|> put_view(json: ErrorJSON)
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|> render(:error, message: gettext("Request timeout"))
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end
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# Default fallback for unexpected errors
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def call(conn, _error) do
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conn
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|> put_status(:internal_server_error)
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|> put_view(json: ErrorJSON)
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|> render(:"500")
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end
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defp format_error_message(:not_found), do: gettext("Resource not found")
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defp format_error_message(:unauthorized), do: gettext("Unauthorized access")
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defp format_error_message(:forbidden), do: gettext("Access forbidden")
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defp format_error_message(:bad_request), do: gettext("Bad request")
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defp format_error_message(reason), do: gettext("An error occurred: %{reason}", reason: reason)
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end
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