Ruby on RailsでWhatsAppメッセージを送信する方法

rails new vonage-rails-whatsapp
cd vonage-rails-whatsapp

bundle add vonage dotenv-rails

rails g model WhatsappMessage to:string from:string text:text status:string message_uuid:string is_inbound:boolean message_type:string profile_name:string reply_data:text

rails db:migrate

rails g controller OutboundWhatsapp new create

Rails.application.routes.draw do
  get  '/outbound_whatsapp/new', to: 'outbound_whatsapp#new', as: :new_outbound_whatsapp
  post '/outbound_whatsapp',     to: 'outbound_whatsapp#create', as: :outbound_whatsapp

  # Bonus route for interactive messages
  post '/outbound_whatsapp/interactive', to: 'outbound_whatsapp#interactive', as: :interactive_whatsapp
end

resources :outbound_whatsapp, only: [:new, :create] do
  collection do
    post :interactive
  end
end

touch .env

VONAGE_APPLICATION_ID=your_application_id
VONAGE_PRIVATE_KEY=./private.key
VONAGE_WHATSAPP_NUMBER=14157386102

vonage = Vonage::Client.new(
  application_id: ENV["VONAGE_APPLICATION_ID"],
  private_key: ENV["VONAGE_PRIVATE_KEY"]
)

response = vonage.messaging.send(
  to: "14155551234",
  from: ENV["VONAGE_WHATSAPP_NUMBER"],
  channel: "whatsapp",
  message_type: "text",
  text: "Hey, it's your friends from Vonage!"
)

puts response.inspect

class OutboundWhatsappController < ApplicationController
  def new
    @whatsapp_message = WhatsappMessage.new
  end

  def create
    @whatsapp_message = WhatsappMessage.new(safe_params)

    if @whatsapp_message.save
      deliver(@whatsapp_message)
      redirect_to :new_outbound_whatsapp, notice: 'WhatsApp message sent!'
    else
      flash[:alert] = 'Something went wrong'
      render :new
    end
  end

  private

  def safe_params
    params.require(:whatsapp_message).permit(:to, :text)
  end

  def deliver(whatsapp_message)
    vonage = Vonage::Client.new(
      application_id: ENV["VONAGE_APPLICATION_ID"],
      private_key: ENV["VONAGE_PRIVATE_KEY"]
    )

    response = vonage.messaging.send(
      message_type: "text",
      text: whatsapp_message.text,
      to: whatsapp_message.to,
      from: ENV['VONAGE_WHATSAPP_NUMBER'],
      channel: "whatsapp"
    )

    if response.http_response.code == "202"
      whatsapp_message.update(
        message_uuid: response.entity.attributes[:message_uuid]
      )
    end
  end
end

<h1>Send a WhatsApp Message</h1>

<%= form_with model: @whatsapp_message, url: outbound_whatsapp_path, local: true do |f| %>
  <div>
    <%= f.label :to, "To (Recipient WhatsApp Number)" %><br>
    <%= f.text_field :to, placeholder: "e.g. 14155551234" %>
  </div>

  <div>
    <%= f.label :text, "Message" %><br>
    <%= f.text_area :text, rows: 4, placeholder: "Type your message..." %>
  </div>

  <%= f.submit "Send Message", class: "btn btn-primary" %>
<% end %>

rails s

 def interactive
    unless params[:to].present?
      redirect_to :new_outbound_whatsapp, alert: "Recipient number is required!"
      return
    end

    vonage = Vonage::Client.new(
      application_id: ENV["VONAGE_APPLICATION_ID"],
      private_key: ENV["VONAGE_PRIVATE_KEY"]
    )

    interactive_message = {
      from: ENV["VONAGE_WHATSAPP_NUMBER"],
      to: params[:to],
      channel: "whatsapp",
      message_type: "custom",
      custom: {
        type: "interactive",
        interactive: {
          type: "button",
          header: {
            type: "text",
            text: "Delivery time"
          },
          body: {
            text: "Which time would you like us to deliver your order at?"
          },
          footer: {
            text: "Please allow 15 minutes either side of your chosen time."
          },
          action: {
            buttons: [
              {
                type: "reply",
                reply: { id: "slot-1", title: "15:00" }
              },
              {
                type: "reply",
                reply: { id: "slot-2", title: "16:30" }
              },
              {
                type: "reply",
                reply: { id: "slot-3", title: "17:15" }
              }
            ]
          }
        }
      }
    }

    response = vonage.messaging.send(**interactive_message)
    Rails.logger.info("📤 Sent interactive message to #{params[:to]}: #{response.inspect}")

    redirect_to :new_outbound_whatsapp, notice: "Interactive message sent to #{params[:to]}!"
  end

<hr>
<h3>Try an Interactive Message</h3>
<p>Send a sample interactive WhatsApp message with reply buttons.</p>

<%= form_with url: interactive_whatsapp_path, method: :post, local: true do |f| %>
  <div>
    <%= f.label :to, "To (Recipient WhatsApp Number)" %><br>
    <%= f.text_field :to, placeholder: "e.g. 14155551234", required: true %>
  </div>
  
  <%= f.submit "Send Interactive Message", class: "btn btn-secondary" %>
<% end %>