Book Image

Practical Microservices with Dapr and .NET

By : Davide Bedin
Book Image

Practical Microservices with Dapr and .NET

By: Davide Bedin

Overview of this book

Over the last decade, there has been a huge shift from heavily coded monolithic applications to finer, self-contained microservices. Dapr is a new, open source project by Microsoft that provides proven techniques and best practices for developing modern applications. It offers platform-agnostic features for running your applications on public cloud, on-premises, and even on edge devices. This book will help you get to grips with microservice architectures and how to manage application complexities with Dapr in no time. You'll understand how Dapr offers ease of implementation while allowing you to work with multiple languages and platforms. You'll also understand how Dapr's runtime, services, building blocks, and software development kits (SDKs) help you to simplify the creation of resilient and portable microservices. Dapr provides an event-driven runtime that supports the essential features you need to build microservices, including service invocation, state management, and publish/subscribe messaging. You'll explore all of those in addition to various other advanced features with this practical guide to learning Dapr. By the end of this book, you'll be able to write microservices easily using your choice of language or framework by implementing industry best practices to solve problems related to distributed systems.
Table of Contents (16 chapters)
1
Section 1: Introduction to Dapr
4
Section 2: Building Microservices with Dapr
10
Section 3: Deploying and Scaling Dapr Solutions

How services work in Dapr

In this section, we will learn how Dapr provides our microservices with the ability to interact directly via service-to-service invocation.

Services are the centerpiece of Dapr. A Dapr service enables the developer to easily make the API of a microservice discoverable and reachable to other components inside the hosting environment, whether it be a self-hosted or a Kubernetes cluster.

In this section, we will understand how a service can send and retrieve information to and from another service, using a practical example derived from our initial project.

The Dapr service invocation API, which we will leverage via the abstraction offered by the Dapr .NET SDK, provides discovery, retry logic, and reliable communication with standard protocols such as HTTP and gRPC.

In previous chapters, we built a few Dapr service samples, but we must give proper attention to the details, which we will do in this chapter. How can a service be reached via Dapr? That...