Flames

Installation

The package can be installed as:

1. Add flames to your list of dependencies in mix.exs:

def deps do
  [{:flames, "~> 0.7"}]
end

2. Add configuration to tell flames what your repository and (optional) Phoenix Endpoint modules are as well as adding it as a Logger backend:

config :flames,
  repo: MyPhoenixApp.Repo,
  endpoint: MyPhoenixApp.Endpoint,
  timezone: "America/New_York",
  table: "errors" # Optional, defaults to "errors"

config :logger,
  backends: [:console, Flames.Logger]

3. Add the following migration. Run mix ecto.gen.migration create_flames_table to generate a migration file:

defmodule MyApp.Repo.Migrations.CreateFlamesTable do
  use Ecto.Migration

  def change do
    # Make sure this table name matches the above configuration
    create table(:errors) do
      add :message, :text
      add :level, :string
      add :timestamp, :utc_datetime
      add :alive, :boolean
      add :module, :string
      add :function, :string
      add :file, :string
      add :line, :integer
      add :count, :integer
      add :hash, :string

      add :incidents, :json

      timestamps()
    end

    create index(:errors, [:hash])
    create index(:errors, [:updated_at])
  end
end

Run mix ecto.migrate to migrate the database.

4. Add import Flames.Router and flames "/errors" to your Phoenix Router for live updates:

Router (You should place this under a secure pipeline and secure it yourself)

defmodule MyAppWeb.Router do
  use Phoenix.Router
  import Flames.Router # <--- Add this here

  scope "/admin", MyAppWeb do
    # Define require_admin plug to ensure public users cannot get here
    pipe_through [:browser, :require_admin]

    flames "/errors" # <--- Add this here
  end
end

Visit http://localhost:4000/errors (or wherever you mounted it) to see a live stream of errors.