lecture 06

lectures/06/hello/lib/hello/application.ex

@@ -0,0 +1,33 @@
+defmodule Hello.Application do
+  # See https://elixir.hexdocs.pm/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    children = [
+      HelloWeb.Telemetry,
+      {DNSCluster, query: Application.get_env(:hello, :dns_cluster_query) || :ignore},
+      {Phoenix.PubSub, name: Hello.PubSub},
+      # Start a worker by calling: Hello.Worker.start_link(arg)
+      # {Hello.Worker, arg},
+      # Start to serve requests, typically the last entry
+      HelloWeb.Endpoint
+    ]
+
+    # See https://elixir.hexdocs.pm/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: Hello.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  @impl true
+  def config_change(changed, _new, removed) do
+    HelloWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end

lectures/06/hello/lib/hello/mailer.ex

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+defmodule Hello.Mailer do
+  use Swoosh.Mailer, otp_app: :hello
+end