Rollbax

Elixir client for Rollbar.

Installation

Add Rollbax as a dependency to your mix.exs file:

defp deps() do
  [{:rollbax, "~> 0.5"}]
end

and add it to your list of applications:

def application() do
  [applications: [:rollbax]]
end

Then run mix deps.get in your shell to fetch the dependencies.

Usage

Rollbax requires some configuration in order to work. For example, in config/config.exs:

config :rollbax,
  access_token: "ffb8056a621f309eeb1ed87fa0c7",
  environment: "production"

Then, exceptions (errors, exits, and throws) can be reported to Rollbar using Rollbax.report/3:

try do
  DoesNotExist.for_sure()
rescue
  exception ->
    Rollbax.report(:error, exception, System.stacktrace())
end

For detailed information on configuration and usage, take a look at the online documentation.

Logger backend

Rollbax provides a backend for Elixir's Logger as the Rollbax.Logger module. It can be configured as follows:

# We register Rollbax.Logger as a Logger backend.
config :logger,
  backends: [Rollbax.Logger]

# We configure the Rollbax.Logger backend.
config :logger, Rollbax.Logger,
  level: :error

Sending logged messages to Rollbar can be disabled via Logger metadata:

# To disable reporting for all subsequent logs:
Logger.metadata(rollbar: false)

# To disable reporting for the current logged message only:
Logger.error("oops", rollbar: false)

Plug and Phoenix

The Plug.ErrorHandler plug can be used to report errors in web requests to Rollbar. In your router:

defmodule MyApp.Router do
  use Plug.Router # or `use MyApp.Web, :router` for Phoenix apps
  use Plug.ErrorHandler

  # Reports the exception and re-raises it
  defp handle_errors(conn, %{kind: kind, reason: reason, stack: stack}) do
    Rollbax.report(kind, reason, %{params: conn.params})
  end
end

Non-production reporting

For non-production environments error reporting can be either disabled completely (by setting :enabled to false) or replaced with logging of exceptions (by setting :enabled to :log).

config :rollbax, enabled: :log

License

This software is licensed under the ISC license.