Send a verification code you are now ready singapore mobile number list to start coding the python application. In your text editor or ide, create a file named app.py in the root directory of the project. Copy the following contents: python copy the code import os from flask import flask, render_template, request, session, redirect, url_for from twilio.rest import client app = flask(__name__) app.
The flask application instance is configured with a secret key , . The twilio client is implicitly initialized with the variables twilio_account_sid and twilio_auth_token defined in the environment. If these variables are not defined or are incorrect, an authentication error message is displayed when using the application. The function index() is the handler for the application's root url.
This route supports the get and methods post. The request get will display a web form where the user can enter their whatsapp phone number. The browser then sends a request post to the same url when the user submits the form. When the request method is get, the application displays a template named index.html .