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Add metadata to log #6

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merged 1 commit into from
Jul 1, 2016
Merged

Add metadata to log #6

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1 change: 1 addition & 0 deletions lib/logster/plugs/logger.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ defmodule Logster.Plugs.Logger do
|> Keyword.put(:status, conn.status)
|> Keyword.put(:duration, formatted_duration(duration))
|> Keyword.put(:state, conn.state)
|> Keyword.merge(Logger.metadata())
|> formatter.format
end
conn
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22 changes: 22 additions & 0 deletions test/logster/plugs/logger_test.exs
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Expand Up @@ -70,6 +70,21 @@ defmodule Logster.Plugs.LoggerTest do
end
end

defmodule MyCustomLogMetadata do
use Plug.Builder
plug Logster.Plugs.Logger
plug Plug.Parsers,
parsers: [:urlencoded, :multipart, :json],
pass: ["*/*"],
json_decoder: Poison
plug :passthrough

defp passthrough(conn, _) do
Logger.metadata(%{custom_metadata: "OK"})
Plug.Conn.send_resp(conn, 200, "Passthrough")
end
end

defp capture_log(fun) do
data = capture_io(:user, fn ->
Process.put(:capture_log, fun.())
Expand Down Expand Up @@ -158,4 +173,11 @@ defmodule Logster.Plugs.LoggerTest do
%{"duration" => duration} = decoded
assert is_float(duration)
end

test "dump metadata into logs" do
{_conn, message} = capture_log fn ->
conn(:get, "/good") |> MyCustomLogMetadata.call([])
end
assert message =~ "custom_metadata=OK"
end
end