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WCF Multi-layer Services Development with Entity Framework - Fourth Edition

By : Mike Liu
Book Image

WCF Multi-layer Services Development with Entity Framework - Fourth Edition

By: Mike Liu

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WCF Multi-layer Services Development with Entity Framework - Fourth Edition
Mike Liu
Oct, 2014 | 378 pages
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Table of Contents (20 chapters)
WCF Multi-layer Services Development with Entity Framework Fourth Edition
WCF Multi-layer Services Development with Entity Framework Fourth Edition
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Implementing a Basic HelloWorld WCF Service
Implementing a Basic HelloWorld WCF Service
The basic WCF concepts
Creating the HelloWorld solution and project
Defining the HelloWorldService service contract interface
Implementing the HelloWorldService service contract
Hosting the WCF service in IIS Express
Creating a client to consume the WCF service
Summary
2
Hosting the HelloWorld WCF Service
Hosting the HelloWorld WCF Service
WCF hosting options
Summary
3
Deploying the HelloWorld WCF Service
Deploying the HelloWorld WCF Service
Publishing the HelloWorldService from Visual Studio
Publishing the HelloWorldService using a deployment package
Summary
4
Debugging the HelloWorld WCF Service
Debugging the HelloWorld WCF Service
Debugging a WCF service from a client application
Directly debugging the WCF service
Attaching the debugger to a running WCF service process
Debugging a WCF service hosted in the cloud
Summary
5
Implementing a Three-layer WCF Service
Implementing a Three-layer WCF Service
Why layer a service?
Creating a new solution and project using the built-in WCF service template
Creating the service interface layer
Adding a business logic layer
Summary
6
Adding Database Support and Exception Handling
Adding Database Support and Exception Handling
Adding a data access layer
Adding error handling to the service
Summary
7
LINQ to Entities – Basic Concepts and Features
LINQ to Entities – Basic Concepts and Features
LINQ to Entities
Creating a LINQ to Entities test application
Creating the data model
Querying and updating a database table
Viewing the generated SQL statements
Deferred execution
Deferred execution – lazy loading versus eager loading
Joining two tables
Querying a view
Summary
8
LINQ to Entities – Advanced Concepts and Features
LINQ to Entities – Advanced Concepts and Features
Calling a stored procedure
Handling simultaneous (concurrent) updates
Transaction support
Summary
9
Applying LINQ to Entities to a WCF Service
Applying LINQ to Entities to a WCF Service
Creating the LINQNorthwind solution
Installing Entity Framework
Modeling the Northwind database
Creating the business domain object project
Using LINQ to Entities in the data access layer
Creating the business logic layer
Creating the service interface layer
Testing the service with the WCF Test Client
Testing concurrency with our own client
Hosting the WCF service in IIS
Summary
10
Distributed Transaction Support of WCF
Distributed Transaction Support of WCF
Creating the DistNorthwind solution
Hosting the WCF service in IIS
Testing the transaction behavior of the existing WCF service
Enabling distributed transaction support
Understanding the distributed transaction support of a WCF service
Testing the distributed transaction support of the new WCF service
Trade-offs of distributed transactions
Summary
11
Building a RESTful WCF Service
Building a RESTful WCF Service
SOAP versus REST
WCF REST versus the ASP.NET Web API
Creating the RESTNorthwind solution
Creating the RESTful service
Testing the RESTful service in a browser
Testing the RESTful WCF service with a C#/XAML client
Testing the RESTful WCF service with a JavaScript client
Summary
12
WCF Security
WCF Security
WCF security components
Hosting a WCF service using basic authentication
Hosting a WCF service with Windows authentication
Summary
13
Extending WCF Services
Extending WCF Services
The WCF runtime architecture
Why extend WCF services?
WCF extension points
Extending a WCF service
Extending HelloWorldService
Summary
Index
Index

Testing the service with the WCF Test Client

Now, we can run the program to test the GetProduct and UpdateProduct operations with the WCF Test Client.

Note

You might need to run Visual Studio as an administrator to start the WCF Test Client. You can refer to Chapter 2, Hosting the HelloWorld WCF Service, for more details on how to set up your WCF development environment.

First, set NorthwindService as the startup project and then press Ctrl + F5 to start the WCF Test Client. Double-click on the GetProduct operation, enter a valid product ID, and click on the Invoke button. The detailed product information should be retrieved and displayed on the screen, as shown in the following screenshot:

Note

You might get an error that says No connection string named 'NorthwindEntities' could be found in the application config file. This means you forgot to copy the connection string from the DAL project to the service project.

If you get an error that says Schema specified is not valid. Errors: Northwind...

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