I have an old codebase that logs the errors in a raw/mangled form.
Every time a server error occurs, there is a wall of red text that looks like this:
16:23:37.212 [error] Ranch listener App.Endpoint.HTTP, connection process #PID<0.1053.0>, stream 1 had its request process #PID<0.1054.0> exit with reason {{%RuntimeError{message: “cannot encode metadata from the :meta field for App.Foo to JSON. This metadata is used internally by ecto and should never be exposed externally.\n\nYou can either map the schemas to remove the :meta field before encoding to JSON, or explicit list the JSON fields in your schema:\n\n defmodule App.Foo do\n # …\n\n @derive {Poison.Encoder, only: [:name, :title, …]}\n schema … do\n”}, [{Poison.Encoder.Ecto.Schema.Metadata, :encode, 2, [file: ‘lib/ecto/json.ex’, line: 35]}, {Poison.Encoder.Map, :“-encode/3-fun-1-”, 4, [file: ‘lib/poison/encoder.ex’, line: 227]}, {Poison.Encoder.Map, :“-encode/3-lists^foldl/2-0-”, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison.Encoder.Map, :encode, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison.Encoder.List, :“-encode/3-fun-0-”, 3, [file: ‘lib/poison/encoder.ex’, line: 259]}, {Poison.Encoder.List, :“-encode/3-lists^foldr/2-1-”, 3, [file: ‘lib/poison/encoder.ex’, line: 260]}, {Poison.Encoder.List, :encode, 3, [file: ‘lib/poison/encoder.ex’, line: 260]}, {Poison.Encoder.Map, :“-encode/3-fun-1-”, 4, [file: ‘lib/poison/encoder.ex’, line: 227]}, {Poison.Encoder.Map, :“-encode/3-lists^foldl/2-0-”, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison.Encoder.Map, :encode, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison.Encoder.Map, :“-encode/3-fun-1-”, 4, [file: ‘lib/poison/encoder.ex’, line: 227]}, {Poison.Encoder.Map, :“-encode/3-lists^foldl/2-0-”, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison.Encoder.Map, :encode, 3, [file: ‘lib/poison/encoder.ex’, line: 228]}, {Poison, :encode!, 2, [file: ‘lib/poison.ex’, line: 41]}, {Phoenix.Controller, :put_render, 5, [file: ‘lib/phoenix/controller.ex’, line: 729]}, {Phoenix.Controller, :instrument_render_and_send, 4, [file: ‘lib/phoenix/controller.ex’, line: 746]}, {App.FooController, :action, 2,
Any idea what do I need to change in order to have the errors pretty printed?