Book Image

Practical Microservices with Dapr and .NET - Second Edition

By : Davide Bedin
Book Image

Practical Microservices with Dapr and .NET - Second Edition

By: Davide Bedin

Overview of this book

This second edition 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 simplifies development while allowing you to work with multiple languages and platforms. Following a C# sample, you'll understand how Dapr's runtime, 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 for building 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. With a focus on deploying the Dapr sample application to an Azure Kubernetes Service cluster and to the Azure Container Apps serverless platform, you’ll see how to expose the Dapr application with NGINX, YARP, and Azure API Management. By the end of this book, you'll be able to write microservices easily by implementing industry best practices to solve problems related to distributed systems.
Table of Contents (20 chapters)
1
Part 1: Introduction to Dapr
5
Part 2: Building Microservices with Dapr
11
Part 3: Deploying and Scaling Dapr Solutions

Service-to-Service Invocation

In this chapter, we will learn how Distributed Application Runtime (Dapr) applications can communicate with each other via the Dapr infrastructure.

We are going to understand this with the following main topics:

  • Invoking services with Dapr
  • Service invocation with the .NET SDK
  • Comparing HTTP and gRPC to Dapr

With hands-on examples, we will understand how to implement services and invoke them from other applications, which can be either aware of the presence of Dapr, as they rely on its SDK, or unaware, as they just invoke a local HTTP endpoint.

Before we start using service-to-service invocation, a building block of Dapr, let’s understand how it works, using an example.