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  • Book Overview & Buying Learning NServiceBus - Second Edition
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Learning NServiceBus - Second Edition

Learning NServiceBus - Second Edition - Second Edition

By : David Boike
4.8 (6)
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Learning NServiceBus - Second Edition

Learning NServiceBus - Second Edition

4.8 (6)
By: David Boike
Buy this Book

Overview of this book

If you are a .NET developer who wants to eliminate the problems related to defective third-party web service integration or batch job failures, then this is the book for you. It is also perfect for those of you who are new to NServiceBus and service-oriented architecture and would like to learn how you can streamline all of your development efforts.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting on the IBus
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1. Getting on the IBus
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Why use NServiceBus?
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Getting the code
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Our first example
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Creating a message assembly
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Creating a service endpoint
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Creating a message handler
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Sending a message from an MVC application
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Running the solution
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Summary
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2. Messaging Patterns
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2. Messaging Patterns
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Commands versus events
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Events
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Message routing
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Summary
3
3. Preparing for Failure
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3. Preparing for Failure
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Fault tolerance and transactional processing
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Error queues and replay
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Messages that expire
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Auditing messages
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Web service integration and idempotence
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Summary
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4. Hosting
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4. Hosting
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Hosting types
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Assembly scanning
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Choosing an endpoint name
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Dependency injection
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Message transport
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Persistence
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Message serialization
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Transactions
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Purging the queue on startup
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Installers
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Startup
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Summary
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5. Advanced Messaging
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5. Advanced Messaging
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Unobtrusive mode
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Message versioning
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Specifying the handler order
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Message actions
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Property encryption
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Transporting large payloads
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Exposing web services
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Summary
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6. Sagas
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6. Sagas
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Long-running processes
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Defining a saga
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Finding saga data
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Ending a saga
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Dealing with time
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Design guidelines
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Persistence concerns
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Unit testing
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Scheduling
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Summary
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7. Advanced Configuration
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7. Advanced Configuration
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Extending NServiceBus
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Dependency injection
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Unit of work
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Message mutators
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The NServiceBus pipeline
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Outbox
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Summary
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8. The Service Platform
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8. The Service Platform
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ServiceControl
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ServiceInsight
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ServicePulse
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ServiceMatrix
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Summary
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9. Administration
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9. Administration
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Service installation
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Profiles
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Managing configurations
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Monitoring performance
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Scalability
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Multiple sites
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Virtualization
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Transport administration
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Summary
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10. Where to Go from Here?
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10. Where to Go from Here?
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What we've learned
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What next?
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Index
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Index

Commands versus events

In the previous chapter, the MVC website sent a command to the NServiceBus endpoint, commanding it to perform an action on its behalf. This is similar to a web service or any other Remote Procedure Call (RPC) style of communication. The message sender must necessarily know not only how to communicate with the receiver but also what it expects the server to do once it receives the message.

Note

A command is a message that can be sent from one or more logical senders and is processed by a single logical receiver.

The main difference between sending an NServiceBus command and an RPC request is that an RPC call will block the client until the server sends a response back. There is no way that the client can continue without the response. Sending an NServiceBus command, however, is completely asynchronous.

Eventual consistency

The asynchronous nature of one-way messages brings to the forefront the concept of eventual consistency, the notion that in a system with disconnected...

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Learning NServiceBus - Second Edition
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