From the course: Building Scalable Microservices with TypeScript and Node.js

Introduction to microservices

From the course: Building Scalable Microservices with TypeScript and Node.js

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Introduction to microservices

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- [Instructor] Let's start with a brief overview of microservices. Establishing a base level of understanding of microservices will help us to discuss further how to scale them. Microservices architecture has revolutionized how we build and deploy modern applications. It is an architectural approach where applications are built as a collection of small, independent services. Each service runs its own process, communicates through well-defined APIs, is independently deployable, and has a single responsibility. There are many benefits of using a microservices architecture versus a traditional monolithic architecture. First, microservices allow for individualized scalability, which allows for more efficient resource utilization. Because services are decoupled from one another, teams can decide on the best technology stack for each service. Microservice applications are more robust because failures in one service do not cascade to others. Lastly, microservice applications have similar code bases that make it easy to understand, maintain, and update. While microservices offer many benefits, they also come with their own set of challenges. Managing multiple services requires sophisticated monitoring and deployment tools, increasing operational complexity. This leads to higher infrastructure costs and resource overhead. Interservice communication adds network delays and could lead to potential for network-related failures and timeouts. In order to combat this, there is an increased need for efficient API design and optimization strategies. In order to keep data consistency across services, you have to maintain data integrity across distributed databases and be able to handle distributed transactions and rollbacks. To manage communication and coordination between microservices, it's important to make sure you manage service registration and health checks, load balancing and routing between services, container orchestration and deployment automation. Microservices architecture represents a powerful approach to building modern applications, offering benefits in scalability, flexibility, and maintenance. Throughout the remainder of this chapter, we'll be discussing how to architect and manage different components of the microservices architecture.

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