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Professional WCF 4 Ebook Download
If you are looking for a comprehensive guide on how to develop service-oriented applications using Windows Communication Foundation (WCF), you have come to the right place. In this article, we will tell you everything you need to know about Professional WCF 4 Ebook, a book that covers all aspects of WCF from basics to advanced topics. You will learn how to download this ebook for free and enjoy reading it on your device. But first, let's see what WCF is and why you need it.
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What is WCF and why you need it
Windows Communication Foundation (WCF) is a framework that simplifies the development of distributed applications that communicate across different platforms and technologies. It provides a unified programming model that abstracts away the details of network protocols, data formats, security mechanisms, and hosting environments. With WCF, you can focus on the business logic of your application and let the framework handle the communication aspects.
WCF enables you to create services that can be consumed by various types of clients, such as web browsers, mobile devices, desktop applications, or other services. You can also expose your services using different communication standards, such as SOAP, REST, JSON, or binary. You can also configure your services to use different transport protocols, such as HTTP, TCP, MSMQ, or named pipes. You can also secure your services using different authentication and encryption methods.
WCF is a powerful and flexible framework that offers many benefits for developing service-oriented applications. Some of these benefits are:
Increased productivity: You can use Visual Studio tools and wizards to create and consume services easily.
Improved maintainability: You can separate your service logic from your communication configuration and change them independently.
Enhanced interoperability: You can communicate with clients and services that use different platforms and technologies.
High performance: You can optimize your service performance by choosing the appropriate binding, encoding, and serialization options.
Extensibility: You can customize your service behavior by creating custom extensions for various aspects of WCF.
What you will learn from Professional WCF 4 Ebook
Professional WCF 4 Ebook is a book that covers all aspects of WCF from basics to advanced topics. It is written by four experienced authors who have been working with WCF for years. The book is divided into 16 chapters and 4 appendices that cover the following topics:
Getting Started with WCF
Understanding WCF Architecture and Concepts
Designing and Implementing WCF Services
Consuming WCF Services
Applying Advanced WCF Features: Transactions, Concurrency Management, and Reliable Messaging
Applying Advanced WCF Features: Streaming, Duplex Communication, and RESTful Services
Extending WCF: Custom Behaviors, Bindings, and Channels
Extending WCF: Custom Message Inspectors and Service Hosts
Hosting WCF Services in Windows Services, IIS, WAS, and AppFabric
Securing WCF Services: Authentication, Authorization, and Encryption
12 Testing and Debugging WCF Services 13 Deploying WCF Services 14 Monitoring and Troubleshooting WCF Services 15 Designing and Implementing Workflow Services 16 Integrating WCF with Other Microsoft Technologies A Configuring WCF Services Using XML B Using the ServiceModel Metadata Utility Tool C Using the Service Trace Viewer Tool D Using the SvcConfigEditor Tool
By reading this book, you will learn how to master WCF and develop robust and scalable service-oriented applications. You will also learn how to apply best practices and avoid common pitfalls when working with WCF. You will also get access to the source code of the examples used in the book.
Getting started with WCF
In this chapter, you will learn how to install and configure WCF and create your first service and client. You will also learn how to use Visual Studio tools and wizards to simplify your development process. You will also learn how to use the ServiceModel Metadata Utility tool (Svcutil.exe) to generate service proxies and configuration files.
To install WCF, you need to have .NET Framework 4 or later installed on your machine. You can download it from https://dotnet.microsoft.com/download. You also need to have Visual Studio 2010 or later installed on your machine. You can download it from https://visualstudio.microsoft.com/downloads.
To create your first service, you need to follow these steps:
Create a new project in Visual Studio using the WCF Service Application template.
Add a new item to the project using the WCF Service template.
Edit the service contract (IService1.cs) and define the operations that your service will provide.
Edit the service implementation (Service1.svc.cs) and provide the logic for each operation.
Edit the service configuration file (Web.config) and specify the service name, contract, binding, endpoint, and behavior.
Build and run the project. You should see a page that shows the service address and metadata address.
Create a new project in Visual Studio using the Console Application template.
Add a service reference to the project using the Add Service Reference dialog box. Enter the metadata address of your service and click OK.
Edit the program code (Program.cs) and create an instance of the service proxy class. Use this instance to call the service operations.
Understanding WCF architecture and concepts
In this chapter, you will learn how to use the core components and concepts of WCF. You will also learn how to use contracts, bindings, endpoints, behaviors, hosting, and security in WCF. You will also learn how to use the SvcConfigEditor tool to edit your service configuration files.
WCF is based on a service-oriented architecture (SOA) that consists of three main roles: service providers, service consumers, and service brokers. Service providers are the entities that offer services to other entities. Service consumers are the entities that use services offered by other entities. Service brokers are the entities that facilitate the discovery and communication between service providers and consumers.
WCF uses a set of components and concepts to implement SOA. These are:
Contracts: Contracts define the interface and behavior of a service. They specify what operations a service provides, what parameters and return values they have, what data types they use, what messages they exchange, and what policies they follow. There are four types of contracts in WCF: service contracts, operation contracts, data contracts, and message contracts.
Bindings: Bindings define how a service communicates with its clients. They specify what transport protocol, message format, encoding method, security mechanism, and reliability option a service uses. There are many predefined bindings in WCF that cover common scenarios, such as BasicHttpBinding, NetTcpBinding, WsHttpBinding, NetMsmqBinding, etc. You can also create custom bindings by combining different binding elements.
Endpoints: Endpoints define where a service is located and how it can be accessed. They consist of three parts: an address, a binding, and a contract. The address specifies the URI of the service. The binding specifies how the service communicates with its clients. The contract specifies what operations the service provides. A service can have multiple endpoints to support different clients and scenarios.
Behaviors: Behaviors define how a service behaves at runtime. They specify what features and functionalities a service supports, such as metadata publishing, error handling, transaction processing, concurrency management, etc. There are two types of behaviors in WCF: service behaviors and endpoint behaviors. Service behaviors apply to the whole service and affect all its endpoints. Endpoint behaviors apply to specific endpoints and affect only those endpoints.
Hosting: Hosting defines where and how a service is hosted and activated. A service can be hosted in different environments, such as Windows services, IIS, WAS, AppFabric, or self-hosting applications. A service can also be activated in different ways, such as per-call activation or singleton activation.
Security: Security defines how a service protects itself and its clients from unauthorized access and malicious attacks. Security involves three aspects: authentication, authorization, and encryption. Authentication verifies the identity of the parties involved in communication. Authorization determines what actions the parties can perform on the service. Encryption protects the confidentiality and integrity of the messages exchanged between the parties.
To configure these components and concepts in WCF, you need to use configuration files or code. Configuration files are XML files that contain settings for various aspects of WCF. Code is C# or VB.NET code that programmatically sets values for various aspects of WCF. You can use either configuration files or code or both to configure your WCF services.
you can use the SvcConfigEditor tool. This tool is a graphical editor that allows you to view and modify your configuration files in a user-friendly way. You can launch this tool from Visual Studio by right-clicking on your configuration file and selecting Edit WCF Configuration. You can also launch this tool from the command prompt by typing SvcConfigEditor.exe.
Designing and implementing WCF services
In this chapter, you will learn how to design and implement WCF services. You will also learn how to use service contracts, operation contracts, data contracts, and message contracts to define the interface and behavior of your services. You will also learn how to use fault contracts, exceptions, and error handlers to handle errors and faults in your services.
To design a WCF service, you need to follow these steps:
Identify the business requirements and scenarios that your service will support.
Define the service contract that specifies what operations your service will provide and what policies it will follow.
Define the operation contracts that specify what parameters and return values each operation will have and what messages it will exchange.
Define the data contracts that specify what data types each parameter and return value will use and how they will be serialized and deserialized.
Define the message contracts that specify what headers and bodies each message will have and how they will be formatted and encoded.
To implement a WCF service, you need to follow these steps:
Create a class that implements the service contract interface.
Provide the logic for each operation in the class.
Decorate the class and its methods with appropriate attributes, such as ServiceContractAttribute, OperationContractAttribute, DataContractAttribute, MessageContractAttribute, etc.
Create a configuration file or code that specifies the service name, contract, binding, endpoint, and behavior.
Host the service in an appropriate environment and activate it in an appropriate way.
To handle errors and faults in a WCF service, you need to follow these steps:
Define the fault contract that specifies what fault information each operation will return in case of an error.
Throw an exception or a fault exception in the service implementation when an error occurs.
Catch and handle the exception or fault exception in the service consumer when an error occurs.
Use an error handler or a message inspector to perform custom actions when an error occurs, such as logging, tracing, auditing, etc.
Consuming WCF services
you will learn how to consume WCF services. You will also learn how to use service proxies, client contracts, channel factories, and channel objects to access services. You will also learn how to use different types of clients, such as console applications, web applications, WPF applications, or mobile applications to consume services. You will also learn how to handle asynchronous calls and use various communication patterns, such as request-reply, one-way, or duplex.
To consume a WCF service, you need to follow these steps:
Obtain the metadata of the service from its metadata address or its configuration file.
Create a service proxy that acts as a local representation of the service. You can use the Add Service Reference dialog box in Visual Studio or the ServiceModel Metadata Utility tool (Svcutil.exe) to generate a service proxy from the metadata.
Create a configuration file or code that specifies the client name, contract, binding, endpoint, and behavior.
Create an instance of the service proxy class and use it to call the service operations.
Dispose the service proxy instance when you are done with it.
To access a WCF service without a service proxy, you need to follow these steps:
Define the client contract that matches the service contract.
Create a channel factory that creates channels for communicating with the service.
Create a channel object that implements the client contract and uses the channel factory.
Use the channel object to call the service operations.
Close the channel object and the channel factory when you are done with them.
To consume a WCF service asynchronously, you need to follow these steps:
Create a service proxy that supports asynchronous operations. You can use the /async option in Svcutil.exe or check the Generate asynchronous operations option in Visual Studio to generate such a proxy.
Use the BeginOperationName and EndOperationName methods of the service proxy to invoke an operation asynchronously. You can also use the OperationNameAsync and OperationNameCompleted methods of the service proxy to invoke an operation asynchronously using events.
Provide a callback method or an event handler that handles the result of the asynchronous operation.
To consume a WCF service using different communication patterns, you need to follow these steps:
Choose the appropriate communication pattern for your scenario. Request-reply is the default pattern that involves sending a request message and receiving a reply message. One-way is a pattern that involves sending a message without expecting a reply. Duplex is a pattern that involves sending and receiving messages in both directions.
Configure your service and client bindings to support the chosen communication pattern. You can use different binding elements, such as OneWayBindingElement, ReliableSessionBindingElement, or CompositeDuplexBindingElement to enable different communication patterns.
the communication pattern. For duplex communication, you also need to define a callback contract that specifies the operations that the service can invoke on the client.
Use your service proxy or channel object to call the service operations according to the communication pattern. For duplex communication, you also need to provide an instance of the callback contract implementation to the service proxy or channel object.
Applying advanced WCF features
In this chapter, you will learn how to apply advanced WCF features to enhance your service-oriented applications. You will also learn how to use transactions, concurrency management, reliable messaging, streaming, duplex communication, and RESTful services in WCF.
Transactions are a mechanism that ensures the consistency and integrity of data across multiple operations. Transactions involve three concepts: atomicity, consistency, and durability. Atomicity means that either all operations in a transaction succeed or none of them do. Consistency means that the data remains in a valid state after a transaction. Durability means that the changes made by a transaction are permanent and not lost due to failures.
To use transactions in WCF, you need to follow these steps:
Configure your service and client bindings to support transactions. You can use different binding elements, such as TransactionFlowBindingElement or ReliableSessionBindingElement to enable transactions.
Decorate your service and client contracts with TransactionFlowAttribute to indicate whether transactions are allowed, mandatory, or not allowed for each operation.
Create and manage transactions in your service and client code using the System.Transactions namespace. You can use different classes, such as TransactionScope, Transaction, or CommittableTransaction to create and manage transactions.
Enlist your service and client resources in transactions using the IEnlistmentNotification interface or the EnlistXXX methods of the Transaction class. You can also use different classes, such as TransactionalAttribute or TransactionInterceptor to enlist your resources automatically.
Concurrency management is a mechanism that controls how multiple requests are processed by a service instance at the same time. Concurrency management involves two concepts: instance context mode and concurrency mode. Instance context mode determines how many instances of a service are created and how they are associated with requests. Concurrency mode determines how many threads are used to process requests for each service instance.
To use concurrency management in WCF, you need to follow these steps:
Configure your service behavior to specify the instance context mode and concurrency mode. You can use different values for these modes, such as PerCall, PerSession, Single for instance context mode and Single, Multiple, Reentrant for concurrency mode.
such as SynchronizationAttribute or ConcurrencyModeAttribute to enable synchronization automatically.
Use different classes, such as OperationContext or InstanceContext to access and manipulate the context information of your service instances and requests.
Reliable messaging is a mechanism that ensures the delivery and ordering of messages between a service and a client. Reliable messaging involves two concepts: reliability and session. Reliability means that messages are not lost, duplicated, or corrupted during transmission. Session means that messages are grouped into logical sequences that have a unique identifier and a state.
To use reliable messaging in WCF, you need to follow these steps:
Configure your service and client bindings to support reliable messagi