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Azure Serverless Computing Cookbook
Azure Serverless Computing Cookbook

Azure Serverless Computing Cookbook: Build applications hosted on serverless architecture using Azure Functions

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Azure Serverless Computing Cookbook

Working with Notifications Using SendGrid and Twilio Services

In this chapter, we will look at the following:

  • Sending an email notification to the administrator of the website using the SendGrid service
  • Sending an email notification to the end user dynamically
  • Implementing email logging in the Blob storage
  • Modifying the email content to include an attachment
  • Sending SMS notification to the end user using the Twilio service

Introduction

For every business application to run it's business operations smoothly, one of the key features is to have a reliable communication system between the business and the customers. The communication channel might be two-way, either sending a message to the administrators managing the application or sending alerts to the customers via emails or SMS to their mobile phones.

Azure has integrations with two popular communication services named SendGrid for emails and Twilio for working with SMS. In this chapter, we will be using both the communication services to understand how to leverage their basic services to send messages between the business administrators and the end users.

Sending an email notification to the administrator of the website using the SendGrid service

In this recipe, you will learn how to create a SendGrid output binding and send an email notification to the administrator with static content. In general, there would be only administrators, so we will be hardcoding the email address of the administrator in the To address field of the SendGrid output (message) binding.

Getting ready

We will perform the following steps before moving to the next section:

  1. Create a SendGrid account API key from the Azure Management portal.
  2. Generate an API key from the SendGrid portal.

Creating a SendGrid...

Sending an email notification to the end user dynamically

In the previous recipe, we hard coded most of the attributes related to sending an email to an administrator as there would be just one administrator. In this recipe, we will modify the previous recipe that sends emails to the user itself that sends a Thank you for registration email.

Getting ready

Make sure that the following are configured properly:

  • The SendGrid account has been created and an API key is generated in the SendGrid portal
  • An App settings is created in the Application settings of the function app
  • The App settings key is configured in the SendGrid output (message) bindings
...

Implementing email logging in the Blob storage

In most of the applications, you would have requirements of sending emails in the form of notifications, alerts, and so on to the end user. At times, users might complain that they haven't received any email even though we don't see any error in the application while sending such notification alerts.

There might be multiple reasons why users might not have received the email. Each of the email service providers has different spam filters that might block the emails in sending them to the end user's inbox. These emails might have some important information that the users might need. It makes sense to store the email content of all the emails that are sent to the end users, which could be used for retrieving the data at a later stage or for troubleshooting any unforeseen issues.

You will learn how to create a new email...

Modifying the email content to include an attachment

In this recipe, you will learn how to send a file as an attachment to the registered user. In our previous recipe, we created a log file of the email content. We will send the same file as an attachment to the email. However, in real-world applications, you might not intend to send log files to the end user. For the sake of simplicity, we will send the log file as an attachment.

At the time of writing this, SendGrid recommends that the size of the attachment not exceed 10 MB, though technically, you can have the size of your email as 30 MB.

Getting ready

This is the continuation of the previous recipe. Go through the previous recipes of this chapter just in case you are...

Sending SMS notification to the end user using the Twilio service

In most of the previous recipes of this chapter, we have worked with SendGrid triggers to send the emails in different scenarios. In this recipe, you will learn how to send notifications via SMS using one of the leading cloud communication platform named Twilio.

You can also learn more about Twilio at https://www.twilio.com/.

Getting ready

In order to use the Twilio SMS output (objsmsmessage) binding, we need to do the following:

  1. Create a trail Twilio account from https://www.twilio.com/try-twilio.
  2. After successful creation of the account, grab ACCOUNT SID and AUTH TOKEN from the Twilio Dashboard, as shown in the following screenshot. We will create two App...
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Key benefits

  • •Enhance Azure Functions with continuous deployment using Visual Studio Team Services
  • •Learn to deploy and manage cost-effective and highly available serverless applications using Azure Functions
  • •This recipe-based guide will teach you to build a robust serverless environment

Description

Microsoft provides a solution to easily run small segment of code in the Cloud with Azure Functions. Azure Functions provides solutions for processing data, integrating systems, and building simple APIs and microservices. The book starts with intermediate-level recipes on serverless computing along with some use cases on benefits and key features of Azure Functions. Then, we’ll deep dive into the core aspects of Azure Functions such as the services it provides, how you can develop and write Azure functions, and how to monitor and troubleshoot them. Moving on, you’ll get practical recipes on integrating DevOps with Azure functions, and providing continuous integration and continous deployment with Visual Studio Team Services. It also provides hands-on steps and tutorials based on real-world serverless use cases, to guide you through configuring and setting up your serverless environments with ease. Finally, you’ll see how to manage Azure functions, providing enterprise-level security and compliance to your serverless code architecture. By the end of this book, you will have all the skills required to work with serverless code architecture, providing continuous delivery to your users.

Who is this book for?

If you are a Cloud administrator, architect, or developer who wants to build scalable systems and deploy serverless applications with Azure functions, then this book is for you. Prior knowledge and hands-on experience with core services of Microsoft Azure is required.

What you will learn

  • ?Develop different event-based handlers supported by serverless architecture supported by Microsoft Cloud Platform – Azure
  • ?Integrate Azure Functions with different Azure Services to develop Enterprise-level applications
  • ?Get to know the best practices in organizing and refactoring the code within the Azure functions
  • ?Test, troubleshoot, and monitor the Azure functions to deliver high-quality, reliable, and robust cloud-centric applications
  • ?Automate mundane tasks at various levels right from development to deployment and maintenance
  • ?Learn how to develop statefulserverless applications and also self-healing jobs using DurableFunctions
Estimated delivery fee Deliver to Australia

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Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Aug 17, 2017
Length: 332 pages
Edition : 1st
Language : English
ISBN-13 : 9781788390828
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Product Details

Publication date : Aug 17, 2017
Length: 332 pages
Edition : 1st
Language : English
ISBN-13 : 9781788390828
Vendor :
Microsoft
Concepts :
Tools :

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Table of Contents

10 Chapters
Accelerate Your Cloud Application Development Using Azure Function Triggers and Bindings Chevron down icon Chevron up icon
Working with Notifications Using SendGrid and Twilio Services Chevron down icon Chevron up icon
Seamless Integration of Azure Functions with Other Azure Services Chevron down icon Chevron up icon
Understanding the Integrated Developer Experience of Visual Studio Tools for Azure Functions Chevron down icon Chevron up icon
Exploring Testing Tools for the Validation of Azure Functions Chevron down icon Chevron up icon
Monitoring and Troubleshooting Azure Serverless Services Chevron down icon Chevron up icon
Code Reusability and Refactoring the Code in Azure Functions Chevron down icon Chevron up icon
Developing Reliable and Durable Serverless Applications Using Durable Functions Chevron down icon Chevron up icon
Implement Best Practices for Azure Functions Chevron down icon Chevron up icon
Implement Continuous Integration and Deployment of Azure Functions Using Visual Studio Team Services Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.5
(2 Ratings)
5 star 50%
4 star 50%
3 star 0%
2 star 0%
1 star 0%
David BB Aug 22, 2017
Full star icon Full star icon Full star icon Full star icon Full star icon 5
We are all challenged with the opportunity to migrate more and more applications and databases to the cloud, but there remain many questions which must be vetted before large scale moves can be successfully completed. This book provides much helpful information in planning, preparation and practical migration. ​
Amazon Verified review Amazon
mogulman Oct 18, 2018
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Overall it contains a lot of good information but is very dated even though it is a little over a year old. I'm currently creating a business process app that is very involved. I'm using SQL Server. The internet is littered with bits of information and it is often conflicting. It is nice to see some consolidation. He covers a lot of development using the portal using .csx files. Anyone doing serious development will use Visual Studio. He covers some development in Visual Studio. If he does an update I'd like to see the book focus on Visual Studio development. I'd also like to see development using .NET Core 2.0. I'd like to see using Microsoft Graph, creating small text files and attach them to emails, code sharing in Visual Studio development....
Amazon Verified review Amazon
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