Oracle Intelligent Bots: Chatbot integration with Facebook Messenger

Below is the procedure to integrate chat bot developed using Oracle Intellegent Bot Cloud Service (IBCS) with the Facebook channel.

• Create a Facebook page
• Make sure you see  "Send Message" button on the page like below

• If you dont see this button, the follow the below steps, other wise continue to the integration
• Click on the button or select Edit button option
• Select "Send Messages" option under "Contact you"

• Click Next
• Select "Facebook Messenger" in the step2

• Now you can see as below

• Click on Finish. Now your facebook page is ready.
• Now goto Facebook developer page: http://developer.facebook.com
• Click on "My Apps"

• Select "Add new app"
• Give "Display name", email id and click on "Create App ID"
• Products page will be opened
• Mouse over to "Messenger" and click on "Set up"
• Repeat the same for "Webhooks"

• You can see both of them added under "PRODUCTS" on the left menu of the app

• Selecte Settings under Messenger from the left menu
• Scroll to "Token Generation" section
• In the drop down under "Page", select the facebook page we created above
• It will generate a "Page Access Token"

• Click on the generated token. It will be copied to clip board
• Open the bot for which you are creating this channel
• Goto Settings and click on Channels
• Click on "+ Channel"
• Enter a name to the channel
• Enter Description which is optional
• Select Channel Type as "Facebook Messenger"
• Paste the copied token into "Page Access Token" field
• Copy "App Secret" from the facebook app's settings to "App Secret" field in bot

• Enable channel and click on Create
• You can observe channel created in bot for facebook with two extra fields Verify Token and Webhook URL. And the screen looks like as below

• Go back to facebook messenger app page
• Click on "Messenger", scroll to "Webhooks" section and click on "Setup webhooks"

• Copy "Webhook URL" of bot to "Callback URL"
• Copy "Verify token" from bot to this facebook app
• Under "Subscription Fields", select messages and messaging_postbacks
• Now the window will look like as below

• Click on "Verify and Save" button which will create a webhook call back to your bot from facebook
• Now you can see a new field in "Webhooks" section in the facebook app page

• Select your facebook page from the drop down which is to subscribe your webhook to the page events
• Once you select the page, a button "Subscribe" will be visible next to the drop down. Click on it

• Now your facebook channel is ready to talk to the bot
• Either make your facebook page public or add users as testers to the page to interact with the bot
• Open facebook messenger and search for the name given to the facebook page and start sending messages to the bot. You will see the bot responses.