ASP.NET Core - SOLID and Clean Architecture from Udemy

Overview

Creating a modular, testable, and maintainable application in .NET Core requires a solid foundation. Setting up an application architecture requires foresight and much consideration, as early decisions will impact how easily the application is extended and maintained.

In the long run, though, applications need to be maintained and, in this case, extended. Between its design and the way the code was written, neither is possible, so the application needs to be redesigned and future-proofed.

Why SOLID Architecture?

When we talk about SOLID architecture, what we refer to isn’t a straightforward task. Decisions made early in the process can have a large impact later on, and maintainability and testability play an important role. Adopting these practices can also contribute to avoiding code smells, refactoring code, and facilitating more efficient agile development.

SOLID stands for:

S - Single-Responsibility Principle
O - Open-closed Principle
L - Liskov Substitution Principle
I - Interface Segregation Principle
D - Dependency Inversion Principle

In this course, you explore foundational architectural principles which help with the creation of maintainable code. You will discover how to set up a real-world application architecture with ASP.NET Core. Then, you’ll learn how to plug in different, common blocks such as email and authentication and have a foundation to plug-in other third-party services as needed.

Everything in this course is .NET 6 / .NET 7 compatible.

When you finish this course, you’ll have the skills and knowledge to create a testable and maintainable ASP.NET Core application to architect real-world enterprise .NET Core apps.

N.B. - The project in this course is based on the deliverables in Complete ASP.NET Core and Entity Framework Development. While it is not mandatory to do this course, much of the existing code will be reused from this course's content.

Build A Strong Foundation in .NET Clean Architecture:

Learn Clean or Onion Architecture and Best Practices
Learn Command Query Responsibility Segregation (CQRS)
Implement Mediatr Pattern
Add Email Service using SendGrid
Efficient Exception Handling and Routing
Implementing Unit Testing
Moq and Shouldy
Global Error Handling with Custom Middleware and Exceptions
Adding Validation Using Fluent Validation
Build a .NET Core API and Blazor UI Application
Implement JWT(JSON Web Token) Authentication

Content and Overview

To take this course, you must have some knowledge of .NET Core development and C#.

This is a huge course. Over 10 hours of premium content, but smartly broken up to highlight related activities based on each module in the application being built. We will also look at troubleshooting and debugging errors as we go along; implementing best practices; writing efficient logic, and understanding why developers do things the way they do. Your knowledge will grow, step by step, throughout the course, and you will be challenged to be the best you can be.

We don't do things the perfect way the first time; that is different from the reality of writing code. We make mistakes and point them out and fix them around them. By doing this, we develop proficiency in using debugging tools and techniques. By the time you have finished the course, you will have moved around in Visual Studio and examined logic and syntax errors so much that it will be second nature for you when working in the .NET environment. This will put your newly learned skills into practical use and impress your boss and coworkers.

The course is complete with working files hosted on GitHub, including some files to make it easier for you to replicate the demonstrated code. You will be able to work alongside the author as you work through each lecture and will receive a verifiable certificate of completion upon finishing the course.

Clicking the Take This Course button could be the best step you could take towards quickly increasing your income and marketability. Also, remember that if you don't think the course is worth what you spent, you have a full 30 days to get a no questions asked refund.

It's time to take action.

See you in the course.

What's inside

Learning objectives

Implement solid principles
Asp .net core blazor and api development
Advanced tools - mediatr, automapper, fluent api and validation
Custom exceptions and global error handling
Custom .net core middleware
Using nswag and nswag studio
Use swagger for api documentation

Implement cqrs pattern
Use identity and jwt to secure application api
Build api client secure application
Moq and shouldly frameworks
Unit testing
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Implement solid principles
Asp .net core blazor and api development
Advanced tools - mediatr, automapper, fluent api and validation
Custom exceptions and global error handling
Custom .net core middleware
Using nswag and nswag studio
Use swagger for api documentation
Implement cqrs pattern
Use identity and jwt to secure application api
Build api client secure application
Moq and shouldly frameworks
Unit testing
Show more
Show less

Syllabus

Introduction

IMPORTANT - .NET 8/9 Version

Preliminary Concepts

Review of S.O.L.I.D Principles

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Covers SOLID principles, which are essential for creating robust and maintainable software, and are highly valued in professional software development environments

Explores CQRS and MediatR patterns, which are useful for building scalable and maintainable applications, and are often sought after by employers

Uses .NET 6 / .NET 7, which are modern and actively supported frameworks, ensuring the skills learned are directly applicable to current projects

Requires some prior knowledge of .NET Core development and C#, so learners should ensure they have a foundational understanding before enrolling

Reuses code from "Complete ASP.NET Core and Entity Framework Development", which may require learners to take the other course to fully understand the context

Teaches NSwag and Swagger, which are useful for API documentation and consumption, and are commonly used in modern web development workflows

Reviews summary

Asp.net core architectural deep dive

According to learners, this course offers a positive and in-depth exploration of ASP.NET Core architecture, focusing on SOLID principles, Clean Architecture, and CQRS. Many find the practical project building and hands-on coding particularly helpful for applying complex concepts. The coverage of modern practices and tools like MediatR, FluentValidation, and unit testing is frequently highlighted as a major strength. While considered highly valuable for professional development, prospective students should be aware that the course assumes significant prior knowledge in .NET Core and C# and the pacing can be challenging if prerequisites aren't met.

Covers essential tools like MediatR, FluentValidation, testing.

"Learning how to effectively use MediatR and FluentValidation within the architecture was a key takeaway."

"The sections on unit and integration testing, along with Moq and Shouldly, were very practical."

"Gained valuable skills using tools like NSwag and implementing JWT authentication."

Course is updated for recent .NET versions.

"It's great that the course has been updated to work with the latest .NET versions like 6, 7, and 8/9."

"Using .NET 8/9 makes the content relevant for current development practices."

"I appreciated the notes and updates provided to ensure the code works with newer .NET versions."

Building a real-world application is highly practical.

"The hands-on coding and projects are the strongest part of the course for me; building the app solidified everything."

"Working through the project steps mirrored how we build applications at work, which was extremely valuable."

"I loved the practical application of theory by building the API and Blazor UI step-by-step."

Excellent coverage of SOLID, Clean Arch, and CQRS.

"The explanations of Clean Architecture and CQRS were incredibly clear; it finally clicked for me after this course."

"Understanding SOLID principles in a practical ASP.NET Core context made a huge difference in my code quality."

"I appreciated how the course broke down complex architectural patterns into understandable modules."

Requires solid prior experience in .NET Core.

"This course is definitely not for beginners; you need a strong foundation in .NET Core and C#."

"The instructor moves quickly, assuming familiarity with basic .NET concepts."

"If you don't have solid prerequisites, you might struggle to keep up with the pace and depth."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in ASP.NET Core - SOLID and Clean Architecture with these activities:

Review SOLID Principles

Show steps

Solidify your understanding of SOLID principles before diving into the course. A strong grasp of these principles is crucial for understanding the course material.

Browse courses on SOLID Principles

Show steps

Read articles and blog posts about each SOLID principle.
Watch videos explaining SOLID principles with examples.
Try to apply SOLID principles to small coding exercises.

Review: "Clean Code: A Handbook of Agile Software Craftsmanship"

Show steps

Deepen your understanding of clean code principles. This book complements the course by providing practical examples and best practices.

View CLEAN CODE on Amazon

Show steps

Read the book cover to cover.
Take notes on key concepts and examples.
Try to apply the principles to your own code.

Implement a Simple API using Clean Architecture

Show steps

Practice implementing Clean Architecture principles in a hands-on project. This will solidify your understanding of the concepts taught in the course.

Show steps

Define the API endpoints and data models.
Implement the core business logic using Clean Architecture principles.
Write unit tests for the core business logic.
Create an ASP.NET Core API project to expose the business logic.

Four other activities

Expand to see all activities and additional details

Show all seven activities

Write a Blog Post on CQRS

Show steps

Reinforce your understanding of CQRS by explaining it in your own words. Teaching others is a great way to learn.

Show steps

Research CQRS and its benefits.
Outline the key concepts of CQRS.
Write a blog post explaining CQRS with examples.
Publish the blog post on your personal blog or a platform like Medium.

Refactor Existing Codebases

Show steps

Sharpen your refactoring skills by applying SOLID principles to existing code. This will help you identify and fix code smells.

Show steps

Find open-source projects or personal projects with messy code.
Identify code smells and areas for improvement.
Refactor the code using SOLID principles.
Write unit tests to ensure the refactoring doesn't break existing functionality.

Review: "Domain-Driven Design: Tackling Complexity in the Heart of Software"

Show steps

Explore Domain-Driven Design principles to enhance your understanding of application architecture. This book provides a deeper dive into modeling complex business domains.

View Domain-Driven Design Reference: Definitions and... on Amazon

Show steps

Read the book and take notes on key concepts.
Try to apply DDD principles to a sample project.
Reflect on how DDD can improve your application design.

Contribute to an Open-Source .NET Core Project

Show steps

Apply your knowledge of SOLID and Clean Architecture to a real-world project. Contributing to open source is a great way to learn from experienced developers.

Show steps

Find an open-source .NET Core project that interests you.
Read the project's documentation and contribution guidelines.
Identify a bug or feature to work on.
Submit a pull request with your changes.

Career center

Learners who complete ASP.NET Core - SOLID and Clean Architecture will develop knowledge and skills that may be useful to these careers:

Software Architect

A software architect is responsible for making high-level design choices and establishing technical standards, including software coding standards, tools, and platforms. This course on ASP.NET Core SOLID and Clean Architecture directly benefits this role by providing a strong understanding of designing modular, testable, and maintainable applications. The principles of SOLID architecture and clean architecture, which are central to the course, are essential for any software architect aiming to build robust and scalable systems. Gaining proficiency in CQRS, Mediatr, and efficient exception handling, all covered in the course, helps the architect make informed decisions about the overall system design.

See salaries and explore the career path for Software Architect

Software Engineer

The software engineer designs, develops, and tests software applications. This course on ASP.NET Core equips software engineers with the techniques to create maintainable and scalable applications using SOLID design principles and clean architecture. The practical aspects of the course, such as setting up a real-world application architecture and integrating common blocks like email services and authentication, provide software engineers with tangible skills. Furthermore, the course's emphasis on unit testing and error handling helps ensure high-quality code, contributing to a software engineer's effectiveness.

See salaries and explore the career path for Software Engineer

Solutions Architect

The solutions architect designs and plans IT solutions to meet business needs. The course on ASP.NET Core SOLID and Clean Architecture offers valuable insights into building scalable and maintainable applications. The principles of SOLID and clean architecture, which are central to the course, are essential for designing robust solutions that meet complex business requirements. The course helps the architect make informed decisions about the system architecture. Gaining proficiency in CQRS, Mediatr, and efficient exception handling, all covered in the course, enables the architect to create effective and sustainable solutions.

See salaries and explore the career path for Solutions Architect

Backend Developer

The backend developer focuses on the server-side logic and databases that power applications. This course helps the backend developer construct robust and maintainable APIs using ASP.NET Core. By learning SOLID principles and clean architecture, the backend developer can create a more organized and testable codebase. The course's in-depth coverage of CQRS, Mediatr, and JWT authentication helps the developer build secure and efficient backend systems. The course may be useful for its insights on connecting to databases, handling errors, and implementing logging, all of which are key responsibilities for a backend developer.

See salaries and explore the career path for Backend Developer

API Developer

An API developer specializes in creating and maintaining Application Programming Interfaces. The ASP.NET Core course can be directly relevant by teaching how to build well-structured, secure, and efficient APIs. The course's content on SOLID principles and clean architecture can help ensure that the APIs are maintainable and easy to evolve. The course's coverage of JWT authentication, Swagger documentation, and efficient error handling equips an API developer with the skills and knowledge to create robust and user-friendly APIs. The course may be useful in improving the API developer's skills in the .NET development environment.

See salaries and explore the career path for API Developer

Application Developer

The application developer builds and maintains applications. The course provides insight into creating a well-structured ASP.NET Core application. The course emphasizes maintainability and testability, crucial aspects for application developers. The course's exploration of SOLID principles, CQRS, and Mediatr patterns directly equips the developer with the skills and knowledge to create applications that are easy to extend and adapt over time. Furthermore, the focus on unit testing and global error handling ensures that the applications the candidate develops are reliable and robust. The course may also be useful in improving an application developer's skills in ASP.NET development.

See salaries and explore the career path for Application Developer

Full-Stack Developer

A Full Stack Developer works on both the front-end and back-end components of an application, this course helps build the developer's skills in creating well-architected and maintainable applications using ASP.NET Core. The course provides a structured approach to building both the API and Blazor UI aspects of a full-stack application and by learning SOLID principles, CQRS, and JWT authentication, the full stack developer can effectively manage the complexity of building complete applications. The course may be useful in giving the Full Stack developer a better understanding of the .NET framework.

See salaries and explore the career path for Full-Stack Developer

Technical Lead

The technical lead guides a team of developers and ensures technical decisions align with project goals. This ASP.NET Core course provides the technical lead with a deeper understanding of architectural principles and design patterns, such as SOLID and CQRS, which becomes crucial for making informed decisions about system design. The course's focus on maintainability, testability, and modularity helps the technical lead guide the team in developing high-quality software. Furthermore, the course may be useful in improving the technical lead's ability to mentor developers.

See salaries and explore the career path for Technical Lead

Cloud Architect

The cloud architect designs and manages cloud-based systems, so this course is useful for its insights into building cloud-ready applications using ASP.NET Core. By learning SOLID principles and clean architecture, the cloud architect can create systems that are easy to deploy, scale, and maintain in the cloud. The course touches on how to integrate third-party services and implement secure authentication, all of which are critical for developing cloud-native applications. The course may also be useful for its discussion of creating applications with robust error handling.

See salaries and explore the career path for Cloud Architect

DevOps Engineer

The DevOps engineer automates and streamlines the software development lifecycle. This course on ASP.NET Core SOLID and Clean Architecture enhances a DevOps engineer's understanding of how to build applications that are easy to deploy, test, and maintain. The course's emphasis on modularity, testability, and clear architectural principles helps the DevOps engineer create effective CI/CD pipelines and automate the deployment process. The course may also be useful in improving the engineer's ability to ensure code quality.

See salaries and explore the career path for DevOps Engineer

Test Automation Engineer

The Test Automation Engineer designs and implements automated tests to ensure software quality. This ASP.NET Core course directly relates to this role by emphasizing the importance of testable code through SOLID principles and clean architecture. The course's focus on unit testing, Moq, and Shouldly frameworks equips the Test Automation Engineer with skills to create robust automated tests. The course may be useful in improving the quality and reliability of the tests, leading to a better software product.

See salaries and explore the career path for Test Automation Engineer

Software Development Manager

The software development manager oversees software development projects and teams so this course is valuable for understanding the technical aspects of building maintainable and scalable applications using ASP.NET Core. By learning SOLID principles, clean architecture, and common design patterns like CQRS and Mediatr, the manager can better guide the team's technical decisions. The course may be useful in improving the manager's ability to make informed decisions about project scope, resource allocation, and risk management.

See salaries and explore the career path for Software Development Manager

Security Engineer

The Security Engineer focuses on protecting software and systems from security threats. The course on ASP.NET Core SOLID and Clean Architecture equips the engineer with knowledge of secure coding practices. This course helps the security engineer implement secure authentication, handle exceptions, and prevent common security vulnerabilities. The course may be useful for its ability to help improve the overall security posture of ASP.NET Core applications.

See salaries and explore the career path for Security Engineer

Data Engineer

The Data Engineer builds and maintains data pipelines and infrastructure. This course on ASP.NET Core SOLID and Clean Architecture provides a foundation for building robust and scalable data-driven applications. The principles of SOLID design and clean architecture, which are central to the course, are useful for building maintainable data pipelines and APIs. The course may be useful for its insights on connecting to data sources, handling errors, and implementing logging.

See salaries and explore the career path for Data Engineer

Quality Assurance Engineer

A Quality Assurance Engineer ensures software meets quality standards. This ASP.NET Core course will help the QA engineer to understand the importance of testable code and well-defined architectures. By learning about SOLID principles and clean architecture, the QA engineer can better assess the quality of the codebase and identify potential issues early in the development process. The course may be useful for helping the QA engineer write effective test cases and ensure the application meets the required standards.

See salaries and explore the career path for Quality Assurance Engineer

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in ASP.NET Core - SOLID and Clean Architecture.

CLEAN CODE

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Cornerstone for understanding clean coding principles, directly supporting the course's emphasis on SOLID architecture and maintainable code. It provides practical guidance on writing readable, reusable, and refactorable code, which is essential for building robust ASP.NET Core applications. It must-read for any developer aiming to improve their coding skills and create high-quality software. This book is commonly used as a textbook at academic institutions and by industry professionals.

Domain-Driven Design Reference

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Delves into the strategic design aspects that complement Clean Architecture. It provides a framework for understanding and modeling complex business domains. While not strictly required for the course, it offers valuable insights for building robust and scalable applications. This book is more valuable as additional reading than it is as a current reference.

Domain-Driven Design Reference: Definitions and...

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ASP.NET Core - SOLID and Clean Architecture

What's inside

Learning objectives

Syllabus

Traffic lights

Save this course

Reviews summary

Asp.net core architectural deep dive

Activities

Career center

Reading list

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