Book Image

Azure IoT Development Cookbook

By : Yatish Patil
Book Image

Azure IoT Development Cookbook

By: Yatish Patil

Overview of this book

Microsoft’s end-to-end IoT platform is the most complete IoT offering, empowering enterprises to build and realize value from IoT solutions efficiently. It is important to develop robust and reliable solutions for your organization to leverage IoT services. This book focuses on how to start building custom solutions using the IoT hub or the preconfigured solution of Azure IoT suite. As a developer, you will be taught how to connect multiple devices to the Azure IoT hub, develop, manage the IoT hub service and integrate the hub with cloud. We will be covering REST APIs along with HTTP, MQTT and AMQP protocols. It also helps you learn Pre-Configured IoT Suite solution. Moving ahead we will be covering topics like:-Process device-to-cloud messages and cloud-to-device messages using .Net-Direct methods and device management-Query Language, Azure IoT SDK for .Net-Creating and managing, Securing IoT hub, IoT Suite and many more. We will be using windows 10 IoT core, Visual Studio, universal Windows platform. At the end, we will take you through IoT analytics and provide a demo of connecting real device with Azure IoT.
Table of Contents (10 chapters)

File uploads with IoT Hub

In most communication from IoT devices, it will send a relatively small message to IoT Hub, (up to 4 KB max allowed message size), such as telemetry data, readings, and so on. However, sometimes, we might have the need to send larger files, such as images, log files, or batch telemetry data in some scenarios.

IoT Hub provides a file ingestion method, which helps to solve this problem. Instead of sending messages through IoT Hub itself, IoT Hub instead acts as a dispatcher to an associated Azure storage configured account in IoT Hub. It uploads the files to the storage account, and then sends a notification message informing that the file ingestion has been completed. The following image is from the Microsoft Azure IoT documentation that shows how file ingestion works:

File ingestion

Devices can initiate file uploads by sending a notification through...