Introduction to Microservices Architecture with .NET Core

One architectural approach that has gained significant traction is microservices architecture in .NET. Read more about it here! 

Introduction to Microservices Architecture | Inventive

In today's fast-paced digital landscape, businesses are constantly seeking ways to improve the agility, scalability, and resilience of their software systems. 

One architectural approach that has gained significant traction in recent years is microservices architecture - and more specifically, microservices in .NET. 

This approach allows developers to break down large, monolithic applications into smaller, independently deployable services, each responsible for a specific business function.

Microservices are a software development technique where an application is composed of loosely coupled, independently deployable services. This architectural style promotes flexibility, scalability, and ease of maintenance, making it an attractive choice for modern software development.

The Benefits of Microservices Architecture

Scalability: Microservices allow individual components of an application to be scaled independently based on demand. This means that resources can be allocated efficiently, resulting in better performance and cost-effectiveness.

Flexibility: With microservices, developers can choose the most appropriate technology stack for each service, enabling them to use the right tool for the job. This flexibility promotes innovation and allows for rapid experimentation.

Resilience: Microservices are designed to be fault-tolerant, meaning that failures in one service do not necessarily impact the entire application. By isolating failures to individual components, the overall system becomes more resilient and easier to recover.

Continuous Delivery: The modular nature of microservices facilitates continuous delivery and deployment practices. Developers can release updates to individual services without disrupting the entire application, enabling faster time-to-market and more frequent releases.

.NET Core is a cross-platform, open-source framework developed by Microsoft for building modern, cloud-native applications. It provides a robust set of tools and libraries for developing microservices-based architectures, making it an excellent choice for businesses looking to adopt this approach.

Some key features of .NET Core microservices include:

ASP.NET Core: A lightweight, high-performance web framework for building RESTful APIs and web applications.

Docker Integration: .NET Core seamlessly integrates with Docker containers, enabling developers to package and deploy microservices as lightweight, portable containers.

Service Fabric: Microsoft's microservices orchestrator provides a platform for deploying and managing scalable, resilient microservices applications.

Azure Functions: Serverless computing with Azure Functions allows developers to build event-driven microservices that scale automatically based on demand.

Organizations are leveraging microservices architecture with .NET Core to build scalable, resilient, and maintainable software solutions across various industries.

The flexibility and agility offered by microservices enable businesses to innovate faster, respond to changing market demands, and deliver value to their customers more effectively. Here are some examples of microservices with .NET core that you’re already familiar with (but may not know it yet): 

Many eCommerce platforms leverage microservices architecture to handle various functionalities such as product catalog management, user authentication, payment processing, and order fulfillment. 

Each of these functionalities can be implemented as a separate microservice, allowing for independent development, deployment, and scaling.

Content management systems often consist of multiple services responsible for different aspects of content creation, management, and delivery. 

With microservices, CMS platforms can achieve greater flexibility and scalability by breaking down monolithic architectures into smaller, specialized services.

In the financial sector, microservices architecture is commonly used to build trading platforms, banking systems, and payment processing applications. 

By decomposing complex financial systems into smaller, manageable services, organizations can improve agility, reduce time-to-market, and ensure compliance with regulatory requirements.

Media streaming platforms like Netflix, Spotify, and YouTube rely on microservices to deliver seamless streaming experiences to millions of users worldwide. 

By breaking down the streaming process into smaller services such as content delivery, recommendation engines, and user authentication, these platforms can scale efficiently and handle high volumes of traffic.

IoT applications often involve collecting, processing, and analyzing data from a large number of connected devices. 

Microservices architecture enables organizations to build scalable and resilient IoT solutions by distributing processing tasks across multiple services, each handling specific aspects of device management, data ingestion, and analytics.

Enterprise Resource Planning (ERP) Systems: 

ERP systems integrate various business processes such as finance, human resources, supply chain management, and customer relationship management. 

By adopting microservices architecture, ERP vendors can modernize their platforms, improve system scalability, and facilitate easier customization and integration with other enterprise systems.

Healthcare applications require handling sensitive patient data while ensuring compliance with regulatory standards such as HIPAA. 

Microservices architecture provides a robust foundation for building secure and scalable healthcare applications, enabling organizations to develop solutions for electronic health records (EHR), telemedicine, medical imaging, and patient monitoring.

Microservices architecture offers numerous benefits for businesses seeking to build scalable, resilient, and maintainable software systems. 

With .NET Core, developers have a powerful framework for building microservices-based applications that leverage modern cloud-native technologies. 

By adopting a .NET microservices architecture, businesses can unlock new opportunities for innovation and growth in today's digital economy.

If you're interested in leveraging the power of microservices architecture with .NET Core for your next software project, Inventive is here to help. 

Our team of experienced developers specializes in building scalable, resilient, and maintainable microservices applications that drive business value. Contact us today to learn more about how we can help you succeed in the digital age.

In the realm of web development, choosing the right framework can be daunting. In this blog post, we'll delve into two popular contenders: Blazor vs React.

Blazor vs. React: A Beginner's Guide | Inventive

In the realm of web development, choosing the right framework can be a daunting task. With the plethora of options available, it's crucial to understand the strengths and weaknesses of each. In this blog post, we'll delve into two popular contenders: Blazor vs React.

Blazor, developed by Microsoft, is an open-source web framework for building interactive web applications using C# and .NET. It allows developers to create single-page applications (SPAs) using familiar languages and tools.

Component-Based Architecture: Blazor follows a component-based architecture, where UIs are built using reusable components.

C# and .NET Integration: With Blazor, developers can leverage their existing knowledge of C# and .NET to build web applications.

Server-Side and Client-Side Rendering: Blazor supports both server-side and client-side rendering models, providing flexibility based on project requirements.

Razor Syntax: Blazor uses Razor syntax, making it easy to write dynamic web applications with HTML and C# seamlessly integrated.

React, developed by Facebook, is a JavaScript/TypeScript framework for building user interfaces. It's widely adopted for its simplicity and performance, particularly in building dynamic and responsive web applications.

Virtual DOM: React utilizes a virtual DOM to optimize rendering performance by only updating the necessary components.

Component-Based Architecture: Similar to Blazor, React encourages a component-based approach to building UIs, promoting reusability and maintainability.

JSX Syntax: React uses JSX, a syntax extension that allows mixing HTML with JavaScript or TypeScript, enabling developers to write UI components in a more declarative and intuitive manner.

Unidirectional Data Flow: React follows a unidirectional data flow, where data flows in a single direction, making it easier to understand and debug applications.

Now that we have a basic understanding of both frameworks, let's compare them based on various aspects:

Blazor: Uses C# and .NET ecosystem and should be familiar for developers with experience in Microsoft technologies.

React: Relies on the JavaScript and TypeScript ecosystem. It is widely adopted by a vast community and has extensive library support.

Blazor: Offers server-side and client-side rendering options. However, the server-side rendering might face latency issues due to constant communication with the server.

React: Utilizes a virtual DOM for efficient rendering, leading to better performance in large-scale applications.

Blazor: Ideal for developers with experience in C# and .NET and is an easy transition for those familiar with Microsoft technologies.

React: Requires proficiency in JavaScript, TypeScript, and JSX syntax. There is a steeper learning curve for beginners but it is widely documented with abundant learning resources.

Blazor: Growing community with increasing adoption. The community is limited compared to React but the platform is backed by Microsoft's support.

React: Extensive community support with numerous resources, tutorials, and libraries available.

Both Blazor and React are powerful frameworks for building modern web applications. The choice between them ultimately depends on factors such as project requirements, existing skill set, and personal preference. 

While Blazor offers seamless integration with C# and .NET, React stands out for its performance and vast ecosystem. Whether you're a .NET enthusiast or a JavaScript and TypeScript aficionado, exploring both frameworks can broaden your horizons as a web developer. 

Still have questions? Our team of developers will be able to recommend the ideal framework for your project. Get in contact with us today!

Learn how to use a message queue to send messages reliably using NServiceBus and C# applications. Read the blog post now!

NServiceBus Kata 1 - Sending Messages | Inventive

Our goal is to very simply demonstrate reliable messaging. If you're communicating between two processes on different machines a usual approach is to send a message using HTTP. Problem is that sometimes the other end isn't reachable. Could be that the service is down, could be that the network is down or it could be that the remote location was hit by a meteor. HTTP won't help us in this case - what we want is a reliable protocol which will save the message somewhere safe and deliver it when the endpoint does show up. 

For this we use a message queue. There are approximately 9 billion different messaging technologies out there but we're going to use NServiceBus. NServiceBus is a .NET library which wraps up a lot of the complexity of messaging. It is built to be able to use a variety of transport such as  RabbitMQ and Azure Service Bus.

We want to make use of NServiceBus and a few C# applications to demonstrate reliable messaging.

I like cake but I feel bad about eating it because it's not good for me. So in this kata you need to command me to eat cake. I can't refuse a command to eat cake so I can't possibly feel bad about it.

Create a sender application which sends a message to a receiver application. The receiver application should be able to receive the message and write it to the console. The sender application should be able to send the message and then exit. The receiver application should be able to start up and receive the message even if the sender application isn't running.

# My Solution
1. Create a new directory for the project

```

mkdir kata1

cd kata1

```

2. Create a new console project for the sender

```

dotnet new console -o sender

```

3. Create a new console project for the receiver 

```

dotnet new console -o receiver

```

4. Create a new class library for the messages

```

dotnet new classlib -o messages

```

5. Add a reference to the messages project in the sender and receiver projects

```

dotnet add sender reference ../messages

dotnet add receiver reference ../messages

```

6. Add a reference to NServiceBus in all the projects

```

dotnet add sender package NServiceBus

dotnet add receiver package NServiceBus

dotnet add messages package NServiceBus

```

7. Create a new class in the messages project (and remove Class1.cs)

```

namespace messages;

using NServiceBus;

public class EatCake: ICommand

{

    public int NumberOfCakes { get; set; }

    public string Flavour { get; set; } = "Chocolate";

}

```

8. Update Program.cs in the sender project to send a message

```

using messages;

using NServiceBus;

Console.Title = "NServiceBusKata - Sender";

var endpointConfiguration = new EndpointConfiguration("NServiceBusKataSender");

// Choose JSON to serialize and deserialize messages

endpointConfiguration.UseSerialization<SystemJsonSerializer>();

var transport = endpointConfiguration.UseTransport<LearningTransport>();

var endpointInstance = await Endpoint.Start(endpointConfiguration);

await endpointInstance.Send("NServiceBusKataReceiver", new EatCake{

    Flavour = "Coconut",

    NumberOfCakes = 2 //don't be greedy

});

await endpointInstance.Stop();

```

9. Update Program.cs in the receiver project to be an endpoint

```

using NServiceBus;

Console.Title = "NServiceBusKata - Reciever";

var endpointConfiguration = new EndpointConfiguration("NServiceBusKataReceiver");

// Choose JSON to serialize and deserialize messages

endpointConfiguration.UseSerialization<SystemJsonSerializer>();

var transport = endpointConfiguration.UseTransport<LearningTransport>();

var endpointInstance = await Endpoint.Start(endpointConfiguration);

Console.WriteLine("Press Enter to exit...");

Console.ReadLine();

await endpointInstance.Stop();

```

10. Add a message handler to the receiver project

```

using messages;

public class EatCakeHandler :

    IHandleMessages<EatCake>

{

    public Task Handle(EatCake message, IMessageHandlerContext context)

    {

        Console.WriteLine($"Cake eaten, NumberOfCakes = {message.NumberOfCakes}; Flavour = {message.Flavour}");

        return Task.CompletedTask;

    }

}

```

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