ASP.NET Core 10 API Engineering: Build Secure C# Web APIs, Microservices, and Cloud Applications for Production

Ready to move beyond basic C# and finally understand how real-world backend applications are built?

Backend development can feel overwhelming when tutorials jump from simple endpoints straight into databases, authentication, microservices, Docker, and cloud deployment. ASP.NET Core 10 API Engineering gives you a clearer path.

You do not need previous experience with ASP.NET Core, Web APIs, Entity Framework Core, authentication, microservices, Docker, or cloud deployment. If you understand basic C# syntax, classes, interfaces, and asynchronous programming, you have enough background to begin. The book introduces advanced concepts gradually and builds them into one evolving application so you can see how the pieces work together.

Rather than memorizing isolated framework features, you will build the practical judgment needed to create secure, testable, observable, and production-ready ASP.NET Core systems. Code is introduced in manageable stages, with practical exercises that encourage experimentation, troubleshooting, and steady progress. Mistakes such as failed migrations, authorization errors, or broken containers become part of the learning process rather than reasons to stop.

Key Features

• Step-by-step ASP.NET Core 10 backend development

• One continuous real-world CommerceOps project

• Practical C# Web API and Minimal API examples

• Entity Framework Core 10 with PostgreSQL

• Authentication, authorization, JWT, OAuth 2.0, and OpenID Connect

• Integration testing with WebApplicationFactory and Testcontainers

• Caching, background processing, health checks, and performance

• Microservices, resilient HTTP communication, and distributed messaging

• OpenTelemetry, structured logging, Docker, and Docker Compose

• Azure deployment, CI/CD, managed identity, monitoring, and scaling

What You Will Learn

You will learn how to design reliable HTTP API contracts, organize production-oriented .NET solutions, persist data with EF Core and PostgreSQL, secure APIs, test real application boundaries, improve performance, build resilient microservices, implement asynchronous workflows with Azure Service Bus, use transactional outbox and idempotency patterns, add observability, containerize services, and deploy and operate ASP.NET Core applications in Azure.

Who This Book Is For

This book is ideal for C# developers, self-learners, students, and programmers who understand basic C# and want to move into professional backend development. It is especially useful if you are new to ASP.NET Core but want to progress beyond beginner tutorials into production-ready APIs, microservices, testing, security, containers, and cloud deployment.

Table of Contents

1. Engineering Modern APIs with ASP.NET Core 10

2. Designing Reliable HTTP API Contracts

3. Building the Data Layer with EF Core 10 and PostgreSQL

4. Securing ASP.NET Core APIs

5. Testing ASP.NET Core APIs

6. Performance, Caching, and Background Processing

7. Evolving from a Modular Application to Microservices

8. Messaging and Distributed Workflows

9. Observability and Container Engineering

10. Deploying and Operating ASP.NET Core Applications in Azure

Start building today and turn your C# knowledge into the practical skills needed to design, secure, test, deploy, and operate modern ASP.NET Core backends with confidence.