lib/mint/web_socket/upgrade_failure_error.ex
defmodule Mint.WebSocket.UpgradeFailureError do
@moduledoc """
An error representing a failure to upgrade protocols from HTTP to WebSocket
"""
@type t() :: %__MODULE__{
status_code: Mint.Types.status(),
headers: [Mint.Types.headers()]
}
defexception [:status_code, :headers]
def message(%__MODULE__{} = error) do
"""
Could not upgrade from HTTP to WebSocket. The server returned status code #{error.status_code} with headers:
#{inspect(error.headers)}
"""
end
end