farhadi / injector

Dependency injection for Elixir

Injector

Simple dependency injection for Elixir. Suitable to use with Mox.

Installation

Add injector to your list of dependencies in mix.exs:

def deps do
  [
    {:injector, "~> 0.2"}
  ]
end

Usage

You can inject dependencies to your modules using inject macro with the same syntax as alias:

def MyApp.MyModule do
  import Injector

  inject MyApp.DB

  def find() do
    DB.query()
  end
end

Erlang modules can also be injected:

inject :mnesia, as: Mnesia

Now in config/test.exs you can specify mock modules to be injected in test environment:

config :injector, [
  {MyApp.DB, MyApp.DBMock},
  {:mnesia, MnesiaMock}
]

It is up to you to define mock modules, but it was desiged to be used in combination with Mox.

License

Injector is released under MIT license.