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Setting Up Facebook

Last updated on Sep 16, 2024

To use Facebook Channel, you have to create a Facebook app in the developer portal. You can find more details about creating Facebook apps here.

Prerequisites​

  1. A valid facebook account.

  2. A valid facebook page.

Register A Facebook App​

  1. Go to Facebook developer portal and click on the "Create App" button

facebook_create_app

  1. Select the option "Other".

facebook_other_app

  1. For the app type, choose "Business".

facebook_business

  1. Enter basic details like the app name and email.

Once you register your Facebook App, you will have to obtain the App Id and App Secret. These values will be available in the app settings and will be required while setting up Snypto environment variables.

Configuring the Environment Variables in Snypto​

Configure the following Snypto environment variables with the values you obtained during the Facebook app setup. The FB_VERIFY_TOKEN should be a unique and secure string that you provide when configuring the Facebook app. Generate a random string and set it as the FB_VERIFY_TOKEN. Facebook will include this string in all verification requests.

Restart the Snypto server after updating the environment variables

FB_VERIFY_TOKEN=
FB_APP_SECRET=
FB_APP_ID=

Configure Facebook Login​

  1. Add the Facebook Login product via the Facebook app dashboard.

  1. Enable Web OAuth Login, Login with Javascript SDK and add your self-hosted domain to the Allowed Domains for the JavaScript SDK input.

Configure the Facebook App​

  1. In the app settings, add your Snypto installation domain as your app domain.

  1. In the products section in your app settings page, Add "Messenger"

  1. Go to the Messenger settings and configure the call back URL

  1. Provide the Callback URL as {your_snypto_installation_url}/bot and the Verify token as FB_VERIFY_TOKEN from your environment variable.

  1. Head over to Snypto and create a Messenger inbox. Choose a page for which your Facebook developer account has admin access to.

Testing the Facebook channel​

Until the application is approved for production, Facebook wouldn't send the new messages on your page to Snypto.

To test the changes until the app is approved for production. Follow the steps

  1. Head over to the messenger section in your app settings page, in Facebook developers.

Click Add or remove pages and connect the page which you choose while creating the Snypto Messenger inbox.

  1. After connecting the pages, Click on Add subscriptions from the connected page.

  1. Subscribe to the following fields and save the subscription.
messages
messaging_postbacks
message_deliveries
message_reads
message_echoes

  1. Send a message to the connected page from your Facebook account and it should appear in Snypto now.

Going into production.​

Before you can start using your Facebook app in production, you will have to get it verified by Facebook. Refer to the docs on getting your app verified.

Obtain advanced access to the required permissions mentioned below for your Facebook app

pages_messaging
pages_show_list
pages_manage_metadata
business_management
pages_read_engagement

Make sure your facebook app subscription version is 17.0, we have updated the FB subscription with the latest version, so change the permission subscription version under the facebook app webhooks option.

Developing or Testing Facebook Integration in your machine​

Install ngrok on your machine. This will be required since Facebook Messenger API's will only communicate via https.

brew cask install ngrok

Configure ngrok to route to your Rails server port.

ngrok http 3000

Go to the Facebook developers page and navigate into your app settings. In the app settings, add localhost as your app domain. In the Messenger settings page, configure the callback url with the following value.

{your_ngrok_url}/bot

Update verify token in your Snypto environment variables.

You will also have to add a Facebook page to your Access Tokens section in your Messenger settings page. Restart the Snypto local server. Your Snypto setup will be ready to receive Facebook messages.

Facebook API version​

We support facebook API version v13.0 going forward, which you can update in the facebook app advanced settings. 

Test your local Setup​

  1. After finishing the set-up above, create a Facebook inbox after logging in to your Snypto. Installation.

  2. Send a message to your page from Facebook.

  3. Wait and confirm incoming requests to /bot endpoint in your ngrok screen.