# RanchConnectionDrainer [](https://hex.pm/packages/ranch_connection_drainer)
This mini library implements connection draining for servers that use Ranch (Cowboy, Plug, Phoenix, and maybe others).
## Installation
This package can be installed by adding `ranch_connection_drainer` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:ranch_connection_drainer, "~> 0.1.0"}
]
end
```
Then add `{RanchConnectionDrainer, ranch_ref: my_ranch_ref, shutdown: my_drain_timeout}` to your application supervisor directly under your phoenix endpoint.
Example:
```elixir
children = [
MyPhoenixProject.Endpoint,
{RanchConnectionDrainer, ranch_ref: MyPhoenixProject.Endpoint.HTTP, shutdown: 30_000}
]
Supervisor.init(children, opts)
```
The format of `ranch_ref` is: `[PhoenixEndpoint].[HTTP | HTTPS]`. Please open an issue if this is unclear.