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raygun
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Send errors in your application to Raygun. Raygun captures all your application errors in one place. It can be used as a Plug, via Logger and/or programmatically.
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lib/raygun/plug.ex
defmodule Raygun.Plug do
@moduledoc """
This plug is designed to wrap calls in a router (commonly in Phoenix) so that
any exceptions will be sent to Raygun.
"""
@user_fn Agent.start_link(fn -> nil end)
defmacro __using__(env) do
Agent.update(@user_fn, fn(current) -> env.user end)
quote location: :keep do
@before_compile Raygun.Plug
end
end
@doc """
Whenever an error occurs, capture the stacktrace and exception to send to Raygun.
"""
defmacro __before_compile__(_env) do
quote location: :keep do
defoverridable [call: 2]
def call(conn, opts) do
try do
super(conn, opts)
rescue
exception ->
stacktrace = System.stacktrace
user = Agent.get(@user_fn, fn (val) -> val end)
user = if user, do: user.(conn)
IO.puts "user is #{user}"
Raygun.report_plug(conn, stacktrace, exception, env: Atom.to_string(Mix.env), user: user)
reraise exception, stacktrace
end
end
end
end
end