# Airbrake Elixir
[](https://travis-ci.org/romul/airbrake-elixir)
[](https://hex.pm/packages/airbrake)
Capture exceptions and send them to the [Airbrake](http://airbrake.io) or to your Errbit installation!
## Installation
```elixir
# 1. Add :airbrake to applications list in your projects mix.exs
# 2. Add it to your deps in your projects mix.exs
defp deps do
[{:airbrake, "~> 0.6"}]
end
# 3. Open up your config/config.exs (or appropriate project config)
config :airbrake,
api_key: System.get_env("AIRBRAKE_API_KEY"),
project_id: System.get_env("AIRBRAKE_PROJECT_ID"),
environment: Mix.env,
host: "https://airbrake.io" # or your Errbit host
config :logger,
backends: [{Airbrake.LoggerBackend, :error}, :console]
```
## General usage
**With Phoenix:**
```elixir
defmodule YourApp.Router do
use Phoenix.Router
use Airbrake.Plug # <- put this line to your router.ex
# ...
end
```
```elixir
def channel do
quote do
use Phoenix.Channel
use Airbrake.Channel # <- put this line to your web.ex
# ...
```
## Ignore some exceptions
To ignore some exceptions use `:ignore` key in config:
```elixir
config :airbrake,
ignore: MapSet.new(["Custom.Error"])
# or
config :airbrake,
ignore: fn(type, message) ->
type == "Custom.Error" && String.contains?(message, "silent error")
end
# or
config :airbrake,
ignore: :all # to disable reporting
```
## Shared options for reporting data to Airbrake
To include with every report to Airbrake a set of optional data, include the `:options` key in the config. This can either
be a keyword list of options or a function that returns a keyword list of options. Keyword list keys that can be used are
`:context`, `:params`, `:session`, and `:env`.
### Options function in config
A function for creating options for reporting should be declared in the config as a tuple of
`{ModuleName, :function_name, 1}`. This function should take as an argument a keyword list, possibly empty and should
return a keyword list. The function arity is always 1.
```elixir
config :airbrake,
options: {Web, :airbrake_options, 1}
```
### Options keyword list in config
When options are provided as a keyword list in the configuration and a specific call to `Airbrake.report/2` includes
options in its parameters, the options will be merged, with the parameters taking precedence.
```elixir
config :airbrake,
options: [env: %{"SOME_ENVIRONMENT_VARIABLE" => "environment variable"}]
```
## Custom usage examples
```elixir
# Report an exception.
try do
String.upcase(nil)
rescue
exception -> Airbrake.report(exception)
end
```
**With GenServer:**
```elixir
defmodule MyServer do
# use Airbrake.GenServer instead of GenServer
use Airbrake.GenServer
# ...
end
```
**With any process:**
```elixir
Airbrake.monitor(pid)
# or
Airbrake.monitor(Registered.Process.Name)
# or with spawn
spawn(fn ->
:timer.sleep(500)
String.upcase(nil)
end) |> Airbrake.monitor
```
