A Hubot adapter for the Facebook Messenger Platform. This adapter fully supports everything the v2.6 Messenger platform API is capable of:
See detailed installation instructions here.
npm install -save hubot-fb
in your Hubot's root.bin/hubot -a fb
. (Edit your Procfile to do the same on Heroku.)This adapter will truncate messages longer than 320 characters (the maximum allowed by Facebook's API). For alternate behavor, use a script like hubot-chunkify or hubot-longtext
If you update a webhook, allow up to 10 minutes for Facebook to propagate your webhook, then it will start posting to the new webhook url.
Required variables are in bold.
config variable | type | default | description |
---|---|---|---|
FB_PAGE_ID |
string | - | Your Facebook Page ID. You can find it at https://www.facebook.com/<YOUR PAGE USERNAME>/info?tab=page_info . |
FB_APP_ID , FB_APP_SECRET |
string | - | Your App ID and App Secret. You can find them at https://developers.facebook.com/apps/ . |
FB_WEBHOOK_BASE |
string | - | The base url for a Facebook webhook subscription. This will be joined with FB_ROUTE_URL , e.g. FB_WEBHOOK_BASE=https://mybot.com and FB_ROUTE_URL=/hubot/fb will be passed to Facebook as https://mybot.com/hubot/fb . Note that the URL must use https . |
FB_ROUTE_URL |
string | /hubot/fb |
The webhook route path hubot-fb monitors for new message events. |
FB_PAGE_TOKEN |
string | - | Your page access token. You can get one at https://developers.facebook.com/apps/<YOUR APP ID>/messenger/ . |
FB_VERIFY_TOKEN |
string | - | Your verification token. This is the string your app expects when you modify a webhook subscription at https://developers.facebook.com/apps/<YOUR APP ID>/webhooks/ . One will be automatically set for you if you do not specify a token. |
FB_AUTOHEAR |
boolean | false |
Prepend a @<robot.name> to all dirrect messages to your robot, so that it'll respond to a direct message even if not explicitly invoked. E.g., for a robot named "hubot", both "ping" and "@hubot ping" will be passed as "@hubot ping" |
FB_SEND_IMAGES |
boolean | true |
Whether or not hubot-fb should automatically convert compatible urls into image attachments |
_Note: If you just want to send images, you can also send a standard image url in your message text with FB_SEND_IMAGES
set to true
._
To send rich messages, include in your envelope
envelope =
{
fb: {
richMsg: [RICH_MESSAGE]
},
user[...]
}
In a response, this would look something like:
robot.hear /getting chilly/i, (res) ->
res.envelope.fb = {
richMsg: {
attachment: {
type: "template",
payload: {
template_type: "button",
text: "Do you wanna build a snowman?",
buttons: [
{
type: "web_url",
url: "http://www.dailymotion.com/video/x1fa7w8_frozen-do-you-wanna-build-the-snowman-1080p-official-hd-music-video_music",
title: "Yes"
},
{
type: "web_url",
title: "No",
url: "http://wallpaper.ultradownloads.com.br/275633_Papel-de-Parede-Meme-Okay-Face_1600x1200.jpg"
}
]
}
}
}
}
res.send()
See Facebook's API reference here for further examples of rich messages.
Events allow you react to input that Hubot doesn't natively support. This adapter emits fb_postback
, fb_delivery
, fb_richMsg
, and fb_richMsg_[ATTACHMENT_TYPE]
events.
Register a listener using robot.on [EVENT_NAME] [CALLBACK]
.
event name | callback object | description |
---|---|---|
fb_postback |
{ event: msgevent, user: hubot.user, room: string, payload: string } |
Emitted when a postback is triggered. |
fb_delivery |
{ event: msgevent, user: hubot.user, room: string } |
Emitted when a delivery confirmation is sent. |
fb_richMsg |
{ event: msgevent, user: hubot.user, room: string, attachments: array[msgevent.message.attachment]} |
Emitted when a message with an attachment is sent. Contains all attachments within that message. |
fb_richMsg_[ATTACHMENT.TYPE] |
{ event: msgevent, user: hubot.user, room: string, attachment: msgevent.message.attachment} |
Emitted when a message with an attachment is sent. Contains a single attachment of type [ATTACHMENT.TYPE], and multiple are emitted in messages with multiple attachments. |
fb_optin or fb_authentication |
{ event: msgevent, user: hubot.user, room: string, ref: string } |
Emitted when an authentication event is triggered |
fb_postback
exampleResponding to an event is a bit more manual—here's an example.
# You need this to manually compose a Response
{Response} = require 'hubot'
module.exports = (robot) ->
# This can exist alongside your other hooks
robot.on "fb_postback", (envelope) ->
res = new Response robot, envelope, undefined
if envelope.payload is "send_ok_face"
res.send "http://wallpaper.ultradownloads.com.br/275633_Papel-de-Parede-Meme-Okay-Face_1600x1200.jpg"
Of course, postbacks can do anything in your application—not just trigger responses.