bot.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
from flask import Flask, request
import os
import dialogflow
from google.api_core.exceptions import InvalidArgument
from twilio.twiml.messaging_response import MessagingResponse
import requests

os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = 'private_key.json'

DIALOGFLOW_PROJECT_ID = 'project_id'
DIALOGFLOW_LANGUAGE_CODE = 'en'
SESSION_ID = 'me'

app = Flask(__name__)
app.config['DEBUG'] = True


@app.route('/')
def root():
    return 'WhatsApp Chatbot'


@app.route('/api/getMessage', methods=['POST'])
def home():
    message = request.form.get('Body')
    mobnum = request.form.get('From')
    session_client = dialogflow.SessionsClient()
    session = session_client.session_path(DIALOGFLOW_PROJECT_ID,
            SESSION_ID)
    text_input = dialogflow.types.TextInput(text=message,
            language_code=DIALOGFLOW_LANGUAGE_CODE)
    query_input = dialogflow.types.QueryInput(text=text_input)
    try:
        response = session_client.detect_intent(session=session,
                query_input=query_input)
    except InvalidArgument:
        raise
    print ('Query text:', response.query_result.query_text)
    print ('Detected intent:',
           response.query_result.intent.display_name)
    print ('Detected intent confidence:',
           response.query_result.intent_detection_confidence)
    print ('Fulfillment text:', response.query_result.fulfillment_text)

    # sendMessage(mobnum, response.query_result. fulfillment_text)

    return response.query_result.fulfillment_text


def sendMessage(mobnum, message):
    print ('Mobile number : ', mobnum)
    print ('Message is : ', message)
    url = \
        'https://api.twilio.com/2010-04-01/Accounts/AC3b4e9356a0acfb55cceeece7f5752f19/Messages.json'
    payload = {'From': 'whatsapp:+14123456789', 'Body': message,
               'To': mobnum}
    headers = {'Authorization': 'Basic <token>'}
    response = requests.request('POST', url, headers=headers,
                                data=payload)
    print response.text.encode('utf8')
    return ''


if __name__ == '__main__':
    app.run()