DiscordMailer

DiscordMailer gem helps separate business logic from logic of message delivery. It structures code just like ActionMailer.

Add this line to your application's Gemfile:

gem 'discord_mailer'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install discord_mailer

Create configuration file config/initializers/discord_mailer.rb

Discord::Mailer::Configuration.configure do |config|
  config.templates_path = "#{Rails.root}/app/views/discord_templates/"
  config.templates_type = 'text'
  config.erb_in_templates = true
  config.discord_url = 'https://discord.com/api/webhooks'
end

Gem balances messages by hooks. It helps not to reach a message limit through 1 hook per 1 second.

app/discord_mailers/user_mailer.rb

class UserMailer < Discord::Mailer

  def created(user)
    @user = user
    mail(webhook_id: 'webhook_id', webhook_key: 'webhook_key', from: 'from')
  end

end

Mailer will be using template app/views/discord_templates/user_mailer/created.text.erb

Name: <%= @user.name %>
Full name: <%= @user.full_name %>
Phone: <%= @user.phone %>

UserMailer.created(user)

Sending small messages(one line message)

Discord::Mailer.send_message('webhook_id, 'webhook_key', 'name', 'message)