Facebook Messenger Chat Bot for Starters

Install Dependencies

Install Flask & requests packages using Python's dependency package manager(pip);

pip install Flask requests

Download and Install ngrok from the Official Ngrok Website.

Run Server & Tunnel Connection

Run the dev server using:

python server.py

Use ngrok to tunnel the connection;

./ngrok http 5000

You will see the url for your local server. Something like: https://6cecffb8.ngrok.io.

Setup Facebook App & Access Token;

• Create a Facebook App from Facebook Developer Website.

• Set Up the Messenger Product (you should have a Facebook Page link your bot with).

• Select a page and enable webhooks. Use the above URL as the callback webhook URL (it should be https).

• Edit server.py and update the VERIFY_TOKEN(you set, in this case "secret") & ACCESS_TOKEN(randomly generated token).

• Once the callback is verified, subscribe the app to one of your pages to activate the bot.

• Also generate a page access token for that page.

• Edit server.py and update the ACCESS_TOKEN with the new token we got.

Testing the bot

Visit your Facebook Page to chat with the bot. Make sure to follow all the steps above in order for the bot to be activated on your Facebook Page. 👍