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Listen to change events on your Postgres tables then perform callback-like actions with the data.

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walex lib walex database_replication_supervisor.ex
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lib/walex/database_replication_supervisor.ex 

defmodule WalEx.DatabaseReplicationSupervisor do

  use Supervisor



  alias WalEx.ReplicationServer



  def start_link(opts) do

    app_name = Keyword.get(opts, :app_name)



    name = WalEx.Registry.set_name(:set_supervisor, __MODULE__, app_name)



    Supervisor.start_link(__MODULE__, configs: opts, name: name)

  end



  @impl true

  def init(opts) do

    app_name =

      opts

      |> Keyword.get(:configs)

      |> Keyword.get(:app_name)



    children = [{ReplicationServer, app_name: app_name}]



    Supervisor.init(children, strategy: :one_for_all)

  end

end