Rails 应用程序中的错误报告

begin
  do_something
rescue SomethingIsBroken => error
  MyErrorReportingService.notify(error)
end

Rails.error.handle(SomethingIsBroken) do
  do_something
end

# config/initializers/error_subscriber.rb
class ErrorSubscriber
  def report(error, handled:, severity:, context:, source: nil)
    MyErrorReportingService.report_error(error, context: context, handled: handled, level: severity)
  end
end

Rails.error.subscribe(ErrorSubscriber.new)

subscriber = ErrorSubscriber.new
Rails.error.unsubscribe(subscriber)
# or
Rails.error.unsubscribe(ErrorSubscriber)

result = Rails.error.handle do
  1 + "1" # raises TypeError
end
result # => nil
1 + 1 # This will be executed

user = Rails.error.handle(fallback: -> { User.anonymous }) do
  User.find(params[:id])
end

Rails.error.record do
  1 + "1" # raises TypeError
end
1 + 1 # This won't be executed

begin
  # code
rescue StandardError => e
  Rails.error.report(e)
end

def edit
  if published?
    Rails.error.unexpected("[BUG] Attempting to edit a published article, that shouldn't be possible")
    false
  end
  # ...
end

Rails.error.handle(context: { user_id: user.id }, severity: :info) do
  # ...
end

Rails.error.set_context(section: "checkout", user_id: @user.id)

Rails.error.set_context(a: 1)
Rails.error.handle(context: { b: 2 }) { raise }
# The reported context will be: {:a=>1, :b=>2}
Rails.error.handle(context: { b: 3 }) { raise }
# The reported context will be: {:a=>1, :b=>3}

Rails.error.handle(IOError) do
  1 + "1" # raises TypeError
end
1 + 1 # TypeErrors are not IOErrors, so this will *not* be executed

Rails.error.disable(ErrorSubscriber) do
  1 + "1" # TypeError will not be reported via the ErrorSubscriber
end

module MySdk
  class Railtie < ::Rails::Railtie
    initializer "my_sdk.error_subscribe" do
      Rails.error.subscribe(MyErrorSubscriber.new)
    end
  end
end