Claudio Ortolina
67 lines
2.2 KiB
Elixir
67 lines
2.2 KiB
Elixir
defmodule BraveSearch.API.ErrorResponse do
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@moduledoc """
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Structured error response for Brave Search API calls.
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Brave Search returns a consistent JSON envelope on errors:
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%{"type" => "ErrorResponse",
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"error" => %{"status" => 422, "code" => "SUBSCRIPTION_TOKEN_INVALID",
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"detail" => "...", "meta" => %{...}}}
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HTTP status codes are the primary classifier (429 for rate limit, 5xx for
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server errors). Brave uses 422 for most validation failures including
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authentication errors that other APIs would return as 401.
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"""
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@behaviour MusicLibrary.ErrorResponse
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alias MusicLibrary.HttpError
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alias MusicLibrary.RetryDelay
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@type t :: %__MODULE__{
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status: integer() | nil,
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code: String.t() | nil,
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message: String.t() | nil,
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kind: HttpError.kind(),
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body: term(),
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retry_delay_seconds: pos_integer() | nil
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}
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defstruct [:status, :code, :message, :kind, :body, :retry_delay_seconds]
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@spec from_response(Req.Response.t() | map()) :: t()
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def from_response(%{status: status, body: body} = response) do
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%__MODULE__{
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status: status,
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code: extract_code(body),
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message: extract_message(body),
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kind: HttpError.default_kind(status),
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body: body,
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retry_delay_seconds: RetryDelay.reset_seconds(response, "x-ratelimit-reset")
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}
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end
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@impl MusicLibrary.ErrorResponse
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@spec retryable?(t()) :: boolean()
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def retryable?(%__MODULE__{kind: kind}) when kind in [:rate_limit, :server_error, :timeout],
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do: true
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def retryable?(%__MODULE__{}), do: false
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@impl MusicLibrary.ErrorResponse
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@spec retry_delay_seconds(t()) :: pos_integer()
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def retry_delay_seconds(%__MODULE__{retry_delay_seconds: seconds}) when is_integer(seconds),
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do: seconds
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def retry_delay_seconds(%__MODULE__{kind: :rate_limit}), do: 60
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def retry_delay_seconds(%__MODULE__{kind: :server_error}), do: 30
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def retry_delay_seconds(%__MODULE__{kind: :timeout}), do: 10
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def retry_delay_seconds(%__MODULE__{}), do: 30
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defp extract_code(%{"error" => %{"code" => code}}) when is_binary(code), do: code
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defp extract_code(_), do: nil
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defp extract_message(%{"error" => %{"detail" => msg}}) when is_binary(msg), do: msg
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defp extract_message(_), do: nil
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end
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