在混合任务中使用 Bamboo 发送电子邮件

Question

我想通过Bamboo 的混合任务发送电子邮件。这是任务的代码：

defmodule Mix.Tasks.SendEmails.Reminder do
  use Mix.Task
  import Mix.Ecto
  import Ecto.Query

  def run(_args) do
    Foobar.welcome_email |> MyApp.Mailer.deliver_now
  end
end

defmodule Foobar do
  import Bamboo.Email

  def welcome_email do
    new_email
    |> to("foo@example.com")
    |> from("me@example.com")
    |> subject("Welcome!!!")
    |> html_body("<strong>Welcome</strong>")
    |> text_body("welcome")
  end
end

当我运行这个混合任务时，我得到以下日志输出：

21:20:26.829 [debug] Sending email with Bamboo.LocalAdapter:

%Bamboo.Email{assigns: %{}, bcc: [], cc: [], from: {nil, 
"me@example.com"}, headers: %{}, html_body: "<strong>Welcome</strong>",
private: %{}, subject: "Welcome!!!", text_body: "welcome", to: 
[nil: "foo@example.com"]}

** (exit) exited in: GenServer.call(Bamboo.SentEmail, {:update, 
    #Function<2.18788267/1 in Bamboo.SentEmail.push/1>}, 5000)
    ** (EXIT) no process: the process is not alive or there's no 
    process currently associated with the given name, possibly 
    because its application isn't started
    (elixir) lib/gen_server.ex:729: GenServer.call/3
    lib/bamboo/sent_email.ex:109: Bamboo.SentEmail.push/1
    lib/bamboo/mailer.ex:121: Bamboo.Mailer.deliver_now/3
    lib/mix/tasks/send_emails.reminder.ex:30: anonymous fn/2 in Mix.Tasks.SendEmails.Reminder.run/1
    (elixir) lib/enum.ex:1755: Enum."-reduce/3-lists^foldl/2-0-"/3
    lib/mix/tasks/send_emails.reminder.ex:20: Mix.Tasks.SendEmails.Reminder.run/1
    (mix) lib/mix/task.ex:294: Mix.Task.run_task/3
    (mix) lib/mix/cli.ex:58: Mix.CLI.run_task/2
    (elixir) lib/code.ex:370: Code.require_file/2

我该如何解决这个问题？ Bamboo 在 Phoenix 应用程序中运行良好。我只是无法让它在混合任务中运行。

Answer 1

出现此错误是因为 bamboo 未启动。

启动单个应用程序

根据您的情况，使用Application.ensure_all_started/2 启动特定应用程序：

Application.ensure_all_started(:bamboo)

启动所有应用程序

在某些情况下，您可能希望启动所有应用程序： Mix.Tasks.App.Start 将启动在您的 mix.exs 配置中定义的所有应用程序：

defmodule Mix.Tasks.SendEmails.Reminder do
  use Mix.Task
  import Mix.Ecto
  import Ecto.Query

  def run(_args) do
    Mix.Tasks.App.Start.run([]) # This will start all apps
    Foobar.welcome_email |> MyApp.Mailer.deliver_now
  end
end