Facebook chatbot with NodeJs mongoose and DialogFlow.

Plugin your facebook page token and DialogFlow token in tokens.js

• channel
• readWebhookEvent
• messagesGenerator
• eventsGenerator
• textMessage
• analyse
• create
• create
• create
• cityGenerator
• cityCollectionExists
• getUserDetails
• read
• updateUserMessages
• connect

Decides which module should respond to the req depending on the contents of req.

Parameters

• req JSON request
• res JSON response

Extract the webhook type

Parameters

• event Object event content

Returns String event type

Loops over the messages

Parameters

• messaging Object array of messages

Loops over the events

Parameters

• entry Object array of events

Registers user and message to database & sends message for analysis

Parameters

• messaging JSON messaging event request

Uses apiai module to analyse input text

Parameters

• sender string Session id used to keep track of context in apiai
• text string text to analyse

Load the Tunisian city list from reference file to database

Add new message to database

Parameters

• message_details object The new message key/fields pairs

Creates new user or update existing users messages list

Parameters

• user_details Object new user details according to user schema
• message_details Object new message details

Iterate over the list of cities from reference file

Look for cities collection in he current database

Returns object Resolves with true if the cities collection exists

Uses facebook API to request details about the user

Parameters

• PSID string user unique id

Returns object a promise that resolves with the user details

Read user from database

Parameters

• user object User model
• user_details object The user to retreive from database

Returns Object User object if user exists or null otherwise

Adds a message to an existing user messages list

Parameters

• user Object User database model
• user_details Object User to which add the message details
• message_details object Message to add to user

Generates database connection and diconnects on process termination