Microservices using ASP.NET Core Tutorials
In this Microservices using ASP.NET Core Tutorial, we will cover all the concepts of Microservices with real-time examples. You will learn from the very basic to the advanced level features of Microservices using ASP.NET Core as you progress in this Microservices Tutorial Course.
This Microservices using ASP.NET Core Tutorial is For whom:
This Microservices using ASP.NET Core Tutorial is designed for Students, Beginners, Intermediate, and Professionals Software Developers who want to learn Microservices using ASP.NET Core step by step from very basics to advanced level concepts. This Microservices using ASP.NET Core Tutorial provides a hands-on approach to the subject with step-by-step program examples that will assist you in learning and putting the acquired knowledge into practice.
What are Microservices?
Microservices are a way of breaking large software projects into loosely coupled modules, which communicate with each other through simple Application Programming Interfaces (APIs).
Microservices have become increasingly popular over the past few years. They are an example of the modular architectural style, based on the philosophy of breaking large software projects into smaller, independent, and loosely coupled parts, which has gained prominence among developers for its dynamic and agile qualities in API management and execution of highly defined and discrete tasks.
As stated, microservices are really nothing more than another architectural solution for designing complex, mostly web-based applications. Microservices have gained prominence as an evolution from SOA (Service Oriented Architecture), an approach that has been designed to overcome the disadvantages of traditional monolithic architectures.
- Microservices are small, independent, and loosely coupled. A single small team of developers can write and maintain a service.
- Each service is a separate codebase, which a small development team can manage.
- Services can be deployed independently. A team can update an existing service without rebuilding and redeploying the entire application.
- Services are responsible for persisting their own data or external state. This differs from the traditional model, where a separate data layer handles data persistence.
- Services communicate with each other by using well-defined APIs. Internal implementation details of each service are hidden from other services.
- Supports polyglot programming. For example, services don’t need to share the same technology stack, libraries, or frameworks.
Why do we use Microservices in .NET Core?
Microservices make it easier to develop, test, and deploy isolated parts of your application. Once deployed, each microservice can be independently scaled as needed.
Pros of Microservices
- Services can be written in different programming languages and accessed using any framework.
- Independently develop, deploy, redeploy, version, and scale component services in seconds without compromising the integrity of an application.
- Better fault isolation keeps other services working even though one failed.
- Zero downtime upgrades.
- Services can be from different servers or even different data centers.
- Interaction with other services in a well-defined protocol.
- Monitor, capture, and report health diagnostics.
- Reliable and self-healing.
- Supports continuous integration and delivery.
- It is easy to transfer knowledge to the new team member.
- Easy to integrate with third parties.
Cons of Microservices
- The additional complexity for implementation of an inter-process communication mechanism between services.
- Writing automated tests involving multiple services is challenging, and creating consistent testing environments cannot be easy.
- Requires a high level of automation to manage multiple instances of different types of services in production.
- Everyone has to manage eventual consistency as maintaining string consistency becomes extremely difficult.
- Managing multiple databases and their transactions is difficult.
- Inter-process calls are slow.
- Debugging will become difficult.
- Complexity in DevOps.
- Production monitoring cost is higher.
- Formal documentation overhead.
- Lack of governance.
Job Opportunities in Microservices
The adoption of microservices architecture has led to a growing demand for professionals with expertise in designing, developing, and managing microservices-based applications. Here are some job opportunities in the field of microservices:
- Microservices Developer: These developers are responsible for designing, coding, and testing individual microservices, ensuring they follow best practices regarding modularity, scalability, and maintainability.
- Backend Developer: Backend developers specialize in creating the backend services and APIs that power microservices applications. They often work with frameworks like Node.js, Java Spring Boot, or ASP.NET Core.
- DevOps Engineer: DevOps engineers focus on automating the deployment, scaling, and monitoring of microservices using tools like Docker, Kubernetes, and CI/CD pipelines.
- Site Reliability Engineer (SRE): SREs ensure the reliability and performance of microservices-based applications. They work to minimize downtime, optimize response times, and manage incidents.
- API Developer: API developers design and build the APIs that microservices expose to interact with each other and with external clients.
- Cloud Engineer: Cloud engineers specialize in deploying microservices on cloud platforms like AWS, Azure, or Google Cloud. They ensure that applications are optimized for scalability and cost-effectiveness.
- Microservices Architect: These professionals design the overall architecture of a microservices-based application. They define how different microservices interact, choose technologies, and ensure scalability and fault tolerance.
- Solution Architect: Solution architects work with clients to design and implement solutions using microservices that align with the organization’s goals and technical requirements.
- Full Stack Developer: Full stack developers have front-end and back-end development skills, which is valuable for building end-to-end microservices applications.
- Software Engineer/Developer: General software engineers or developers with experience in microservices development are highly sought after in industries adopting this architecture.
- Technical Lead: Technical leads provide technical guidance and mentorship and oversee the development of microservices projects within a team.
- Microservices Consultant: Consultants specialize in helping organizations transition to microservices, offering guidance on strategy, architecture, best practices, and implementation.
- Integration Engineer: Integration engineers focus on integrating various microservices, third-party APIs, and data sources to create a cohesive application ecosystem.
- Data Engineer: Data engineers design microservices’ pipelines and storage solutions, ensuring efficient data flow and storage across the application.
- QA Engineer: Quality assurance engineers focus on testing the functionality, performance, and security of microservices-based applications.
- Machine Learning Engineer: In applications that leverage machine learning, these engineers integrate ML models into microservices to provide data-driven insights and features.
- Technical Product Manager: Product managers with knowledge of microservices can effectively manage the development and deployment of microservices-based products.
- Microservices Trainer/Instructor: Professionals with deep knowledge of microservices can teach others through workshops, training programs, and online courses.
The demand for microservices professionals spans various industries, including e-commerce, finance, healthcare, entertainment, and more. The specific roles and job titles may vary based on the organization’s structure and the complexity of the microservices ecosystem. As microservices continue to be adopted, job opportunities in this field will likely grow and diversify.
Prerequisites to Learn Microservices
Learning about microservices requires a combination of technical skills, architectural understanding, and practical experience. Here are some prerequisites that can help you effectively learn about microservices:
- Web Development: Understanding web development concepts, including HTTP, APIs, RESTful architecture, and frontend technologies, is important as microservices often expose APIs for communication.
- Basic Architecture Knowledge: Familiarize yourself with architectural concepts like monolith vs. microservices, containerization, and service-oriented architecture (SOA).
- Version Control: Proficiency in using version control systems like Git is crucial for collaborating on microservices projects.
- Networking and Protocols: Understanding networking fundamentals and protocols like HTTP, TCP/IP, and DNS will help you design and troubleshoot microservices interactions.
- Containerization: Learn about containerization platforms like Docker, which are commonly used to package microservices and their dependencies.
- Orchestration: Familiarize yourself with orchestration tools like Kubernetes that manage containerized applications’ deployment, scaling, and monitoring.
- Database Concepts: Understand relational and NoSQL database technologies, as microservices often have their own databases or data stores.
- API Design: Learn how to design clean and effective APIs that facilitate communication between microservices.
- Testing and Debugging: Learn techniques for testing individual microservices, integration testing, and debugging in distributed systems.
- Security Fundamentals: Gain a basic understanding of security principles, authentication, authorization, and encryption in the context of microservices.
- DevOps Practices: Familiarize yourself with DevOps concepts, including continuous integration, continuous delivery, and automated deployment pipelines.
- Cloud Services: Learn about cloud computing platforms like AWS, Azure, or Google Cloud, as microservices often leverage these services for scalability and infrastructure.
- Microservices Patterns: Study common microservices patterns like circuit breakers, API gateways, service discovery, and event-driven architectures.
- Documentation and Collaboration Tools: Proficiency in tools like Confluence, JIRA, and Postman can facilitate collaboration and documentation.
- Soft Skills: Effective communication, problem-solving, and teamwork are crucial as microservices often involve collaboration across multiple teams.
- Project Experience: Apply your knowledge by working on small projects or contributing to open-source microservices architecture projects.
- Continuous Learning: The field of microservices is rapidly evolving. Stay up-to-date with industry trends, new tools, and best practices through blogs, forums, and conferences.
Remember that learning about microservices is an ongoing process, and practical experience is invaluable. Start by building small projects and gradually work your way up to more complex applications. Learning from real-world challenges and successes is essential to becoming proficient in microservices development.
Tools Used to Develop Microservice in .NET
We will use the following tools and technologies while transitioning our monolithic application to the microservice-styled architecture:
- Visual Studio 2022 Community Edition
- C# 11.0
- .Net Core 6.0
- Entity Framework Core
- SQL Server
What Companies are using Microservices?
Many companies across various industries have adopted microservices architecture to build and scale their applications. Here are some well-known companies that have implemented microservices:
- Netflix: Netflix is a prominent example of a company that pioneered the microservices approach. Its architecture is built around hundreds of microservices that handle different aspects of its streaming platform, from user profiles to content delivery.
- Amazon: Amazon has a highly distributed architecture built on microservices. Its e-commerce platform, Amazon Web Services (AWS), and various other services are powered by microservices to ensure scalability and maintainability.
- Uber: Uber uses microservices to power its ride-sharing platform. Different microservices handle functionalities like rider and driver management, trip routing, payment processing, and surge pricing.
- Airbnb: Airbnb’s platform comprises microservices that manage user accounts, property listings, bookings, payments, and more. This architecture helps Airbnb handle a global user base and a diverse range of properties.
- Spotify: Spotify uses microservices to deliver personalized music streaming experiences. Different services handle user preferences, music recommendations, playlist management, and content delivery.
- Twitter: Twitter has adopted microservices to handle various components of its social media platform, including user timelines, tweets, notifications, and trends.
- SoundCloud: SoundCloud, a platform for music and audio streaming, uses microservices to support its global user base, allowing for efficient content delivery and management.
- PayPal: PayPal’s platform relies on microservices to manage online payments, transaction processing, fraud detection, and user accounts.
- LinkedIn: LinkedIn uses microservices to support its professional networking platform, with services dedicated to user profiles, connections, job listings, and content delivery.
- eBay: eBay’s marketplace is built on microservices, enabling independent development and scalability for various functionalities, including product listings, auctions, and user accounts.
- Zalando: Zalando, a European e-commerce company, uses microservices for its fashion platform, allowing for flexible development, faster deployments, and efficient scaling.
- Groupon: Groupon’s daily deals platform employs microservices to handle voucher sales, user accounts, deal listings, and payments.
- Walmart: Walmart’s microservices architecture powers its e-commerce platform, enabling the retail giant to handle online sales, inventory management, and order processing.
- The New York Times: The New York Times adopted microservices to manage its online news platform, including article delivery, user authentication, comments, and subscription management.
- Capital One: Capital One, a financial services company, utilizes microservices for various banking services, including account management, transactions, and mobile banking applications.
These are just a few examples of companies that have successfully implemented microservices architecture to achieve scalability, maintainability, and flexibility in their applications. Keep in mind that while microservices offer benefits, they also introduce complexity and require careful design and management to reap their full advantages.
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Microservices – Basics
About the Author: Pranaya Rout
Pranaya Rout has published more than 3,000 articles in his 11-year career. Pranaya Rout has very good experience with Microsoft Technologies, Including C#, VB, ASP.NET MVC, ASP.NET Web API, EF, EF Core, ADO.NET, LINQ, SQL Server, MYSQL, Oracle, ASP.NET Core, Cloud Computing, Microservices, Design Patterns and still learning new technologies.