LINE

Preview

This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA products and features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

Conversational Agents (Dialogflow CX)'s LINE integration lets you to easily create LINE bots with natural language understanding based on Conversational Agents (Dialogflow CX) technology.

Note: When using a third party integration, requests and end-user data are sent to both Google and the third party. The terms of service, SLA, pricing, and quotas for your agent edition are applicable for Google's handling of these requests. The third party's terms of service, SLA, pricing, and quotas are applicable for the third party's handling of these requests.

Set Up LINE

In order to set up the LINE integration for your agent, you'll need the following:

• A LINE account
• The LINE app installed on a mobile device

Note: Account sign-up is completed through the mobile app.

Create a LINE bot

1. Follow LINE's guide Getting started with the Messaging API to create a provider and a Messaging API channel (if not created before).

2. Copy the following information from the created channel in LINE Developers Console:

   • Channel access token (long-lived)
   • Channel ID
   • Channel secret

Set up Conversational Agents (Dialogflow CX)

1. Click Manage tab on the left panel.
2. Click Integrations in the left menu.
3. Click the Connect button on the Line tile.
4. Fill in the following information:
   • Channel access token
   • Channel ID
   • Channel secret
5. Choose an environment, as applicable.
6. Click Start.
7. Copy the Webhook URL.

Enable webhook in LINE

Follow LINE's guide Set a Webhook URL to finish the setup.

Testing

Note: Make sure billing is enabled on your project before testing the integration.

To test your agent, follow LINE's guide Adding friends via QR code to add the bot to the conversation list. The QR code can be found on the Messaging API tab in the LINE Developers Console. After that, you can send messages to the bot for testing.

Rich response messages

The rich response messages are supported via Custom Payload in Fulfillment. Please see LINE Message Objects for the message format.

For example, the following custom payload provides a simple LINE text message:

{
  "type": "text",
  "text": "Hello, world"
}

The following custom payload provides a LINE template message:

{
  "type": "template",
  "altText": "this is a buttons template",
  "template": {
    "type": "buttons",
    "thumbnailImageUrl": "https://example.com/bot/images/image.jpg",
    "title": "Menu",
    "text": "Please select",
    "actions": [
      {
        "type": "postback",
        "label": "Buy",
        "data": "action=buy&itemid=123"
      },
      {
        "type": "postback",
        "label": "Add to cart",
        "data": "action=add&itemid=123"
      },
      {
        "type": "uri",
        "label": "View detail",
        "uri": "http://example.com/page/123"
      }
    ]
  }
}

Channel specific responses

After you configure the channel-specific responses, the channel DF_CX_LINE is automatically used when the agent responds to Line messages.