with the code_reloader everything goes through:
defp before_send_inject_reloader(conn, endpoint) do
register_before_send conn, fn conn ->
resp_body = to_string(conn.resp_body)
msgpack:
iex> (for id <- 1..16 do %{id: id, title: "post-#{id}", body: "body-#{id}"} end)|> Msgpax.pack!
[<<220, 0, 16>>,
[131, [[164 | "body"], 166 | "body-1"], [[162 | "id"], 1]....
to_string breaks with
iex> (for id <- 1..16 do %{id: id, title: "post-#{id}", body: "body-#{id}"} end)|> Msgpax.pack! |> to_string
** (UnicodeConversionError) invalid encoding starting at <<220, 0, 16>>
works fine with 1…15:
iex> (for id <- 1..15 do %{id: id, title: "post-#{id}", body: "body-#{id}"} end)|> Msgpax.pack!
[159,
[131, [[164 | "body"], 166 | "body-1"], [[162 | "id"], 1]....
to_string
iex> (for id <- 1..15 do %{id: id, title: "post-#{id}", body: "body-#{id}"} end)|> Msgpax.pack! |> to_string
<<194, 159, 194, 131, 194, 164, 98, 111, 100, 121, 194, 166, 98, 111, 100, 121....
I’m not the one to say if the error is in msgpax or the code_reloader or iodata is not to be used - but obviously to_string is not happy about the <<220, 0, 16>> part;-)
With my limited knowledge iodata should be preferred yes.
