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While the Twilio Messaging API won't charge you for attempting to send an SMS to a landline number, identifying the line type of a phone number can be useful for other reasons. A lot of businesses won't let users sign up with VoIP numbers, for example.
Let's walk through how to identify a phone number's line type with Twilio Lookup and Node.js.
Setting up
For this post you will need:
- Node.js and npm installed (do this first if you haven't already)
- A free Twilio account
- The Twilio Node library
To install the Twilio npm module, navigate to the directory where you want this code to live and navigate to the directory where you want this code to live and run the following command in your terminal to create a package for this project:
npm init --yes
The --yes argument just runs through all of the prompts that you would otherwise …
Trolls and bad actors sometimes use phone numbers from free online providers to create fake profiles for making spam calls. Twilio's Lookup API helps you identify the carrier behind the phone number to learn which users have real mobile numbers.
Setting up
To lookup a phone number you will need:
- Node.js and npm installed (do this first if you haven't already)
- A free Twilio account
- The Twilio Node library
To install the Twilio npm module, navigate to the directory where you want this code to live and navigate to the directory where you want this code to live and run the following command in your terminal to create a package for this project:
npm init --yes
The --yes argument just runs through all of the prompts that you would otherwise have to fill out or skip. Now that we have a package.json for our app, let’s install the Twilio module …
Trolls and bad actors sometimes use phone numbers from free online providers to create fake profiles for making spam calls. Twilio's Lookup API helps you identify the carrier behind the phone number to learn which users have real mobile numbers.
Setting up
To lookup a phone number you will need:
- Python 2 or 3 installed (do this first if you haven't already)
- A free Twilio account
- The Twilio Python module
To install the Twilio Python module, navigate to the directory where you want this code to live and make sure you create a virtual environment. Once you have a virtual environment activated, run the following command to install the dependencies:
pip install twilio==6.31.1
After this you should be good to write some code!
Looking up a carrier with Twilio
You can query the Twilio Lookup API for information about a phone number. There are two Type …
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Twilio Verify is an easy-to-use service that allows your application to send verification codes to your users via SMS or phone call. While the main purpose of this API is to verify users when they sign up for a new account, I want to show you how the same functionality can be used to quickly implement two-factor authentication support.
In this article I’m going to take a complete, non-trivial Python application that uses the Flask framework and modify it to allow users to optionally enable two-factor authentication on their accounts. The application that I’m going to use for this exercise is the one featured in my Flask Mega-Tutorial, a microblogging web application very appropriately, though unoriginally called Microblog.
To give you a taste of what this looks like once implemented, below you can see how a user enables two-factor authentication on this application:
Once two-factor is enabled, the …
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In this article, I will show you one of the many possible ways to build an Image Classifier using Twilio Autopilot in your flow. We will use Node.js with TensorFlow and show the final result on WhatsApp.
Let's get started.
Pre-requisites
Our Image Classifier is based on Transfer Learning using TensorFlow. Transfer Learning is a great way to build on top of thousands of existing training models that are already available, saving you valuable development time and resources. To learn more about it and apply your own logic, check out this TensorFlow image retraining tutorial.
Install TensorFlow by following these relevant steps.
The Main Components
The building blocks for this demo code are the following:
- A Node.js Express-based app to handle all incoming requests (for example, getting the name of the new set of images you want to train the bot with; e.g. "polar bear")
- Script for …
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Sending a single email is great, but one of the big advantages of email is the ability to quickly reach a wide audience. Today I’ll show you how to send mass emails with Python and SendGrid. Just for fun, let’s say you’re a Python developer who works at a donut shop. You need a way of letting the customers who have signed up for your email list know when fresh donuts have come straight out of the oven. 🍩
Prerequisites
- Python 2 or 3 installed. Since it’s almost 2020 I’d strongly recommend Python 3.
- A free SendGrid account - sign up here
- At least two email addresses, to test things out and make sure they’re working. You can sign up for (multiple) free Gmail addresses here. Or you can try the old hack of adding a + to your existing Gmail address. Caveat: we ran into some deliverability …
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In this tutorial, I will teach you how to use Twilio’s Programmable SMS to create an SMS based food ordering service using Laravel. After we’re finished, your users will be able to place orders for food items via SMS.
Prerequisites
In order to follow this tutorial, you will need:
- Basic knowledge of Laravel
- Laravel installed on your local machine
- Composer globally installed
- A Twilio Account
Getting Started
Start off by creating a new Laravel project. This can be done using either the Laravel installer or Composer. We will be making use of the Laravel installer in this tutorial. If you don’t have it installed, you can check out how to do so from the Laravel documentation.
To generate a fresh Laravel project, run the following command on your terminal:
$ laravel new twilio-food-ordering
Next, proceed to install the Twilio SDK for PHP. Change your working directory to …
Executing specific code at specific times is a common task in Python. There are a variety of tools to solve this issue, but RQ Scheduler is a lightweight, elegant solution built on top of another tool with a low barrier to entry called Redis Queue.
With RQ Scheduler, all you need to do is create a Scheduler object and provide it with a Python datetime and a function to execute, along with any arguments you want to pass to the function:
from datetime import datetime from redis import Redis from rq_scheduler import Scheduler from some_module import arbitrary_function scheduler = Scheduler(connection=Redis()) # Get a scheduler for the "default" queue scheduler.enqueue_at(datetime(2020, 1, 1), arbitrary_function) # Date time should be in UTC
Let’s walk through how to queue up a function that notifies you when the International …
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This post first appeared on the Twilio SendGrid blog.
Any marketer or business owner from small to large enterprises know the importance of Black Friday in the United States as the busiest shopping day of the year. As you prepare for this, Twilio SendGrid prepares to scale up our infrastructure to manage billions of emails reliably, quickly and securely. The hard work of our talented teams has paid off–demonstrated by our ability to support our customers sending a total of 2 trillion emails by March of this year.
To provide a clearer understanding of our scalable systems, on Black Friday 2019 we processed 4.1 billion emails and this Cyber Monday we processed 4.2 billion emails (46% more than 2018) and processed up to 315 million emails/hour (burst rate) into inboxes all around the world! To give you a better understanding of this scale, you can get to the moon …
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With Twilio Programmable Video you can add robust video chat functionality to web applications built with Angular and ASP.NET Core. With the Microsoft Azure App Service you can host your video-enabled apps on a fully managed, enterprise-grade cloud platform. Deployment and configuration are easy and take just minutes.
Build a Video Chat App with ASP.NET Core 3.0, Angular 8, and Twilio showed you how to integrate the Twilio JavaScript SDK and the Twilio .NET SDK seamlessly with ASP.NET Core and Angular. This post will show you how to deploy applications built with these technologies to the Azure App Service.
In this post you will learn how to publish your application to the Azure App Service, and securely configure the app on Azure to use the Twilio Video Chat API with the App Service settings. You’ll be able to try out the production applications’ video chat features and verify that it’s …