PubSubでメッセージを送付する[Ruby]

This article describes how to send message to PubSub on GCP.

🐰 Installation

Please modify your Gemfile and execute bundle install.

gem 'google-cloud-pubsub'

🐡 How to send

require 'securerandom'
require 'google/cloud/pubsub'

class PubSub
  def send_message(params:)
    return if !Rails.env.staging? && !Rails.env.production?

    post_params = _generate_log_hash(params)
    _topic.publish(post_params.to_json.to_s)
  end

  def send_multi_message(params_list:)
    return if !Rails.env.staging? && !Rails.env.production?

    _topic.publish do |batch|
      params_list.each do |params|
        post_params = _generate_log_hash(params)
        batch.publish(post_params.to_json.to_s)
      end
    end
  end

  private def _topic
    return @topic if @topic.present?

    # On GCP
    # pubsub = Google::Cloud::Pubsub.new

    # For development
    pubsub = Google::Cloud::Pubsub.new(
      project: 'sample-project',
      keyfile: './gcp-credencial-for-sample-project.json'
    )

    @topic = pubsub.topic('core')
  end

  private def _generate_log_hash(params)
    {
      event_time: Time.current.iso8601(6),
      log_id: SecureRandom.uuid
    }.merge(params)
  end
end

pubsub = PubSub.new
pubsub.send_message('sample-message')

😀 References

http://googleapis.github.io/google-cloud-ruby/docs/google-cloud-pubsub/latest/

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