Web Services Using C# and ASP.NET

Current Version: 4.6

This course provides a realistic, hands-on and comprehensive coverage of developing Web services using .NET and C#. Web services are an evolving series of standards that enable programs on various computers to communicate with other programs on similar or disparate computers transparently over the Internet. This course teaches in detail the skills needed to program Web services using .NET technologies, both ASP.NET and Windows Communication Foundation (WCF). The last chapter introduces ASP.NET Web API. The course also examines the fundamentals of SOAP, WSDL and REST. It is current to .NET 4.5.1 and Visual Studio 2013, with coverage of newer features such as the WS-I Basic Profile 1.1, SOAP 1.2, the event pattern for calling Web services asynchronously, support for RESTful services, and more.

The first chapter introduces Web services and Service Oriented Architecture (SOA). The baseline Web service specifications of XML, SOAP, WSDL and UDDI are outlined.

Chapter 2 covers the fundamentals of SOAP and WSDL. Web services are developed using the .NET Framework SDK. Chapter 3 covers the details of how to create and debug ASP.NET Web services using Visual Studio 2013.

Chapter 4 shows how to create clients for Web services using an SDK tool and using Visual Studio 2013. Sophisticated topics, such as state management, caching and transactions in Web services are covered in Chapter 5. The next three chapters discuss important technologies at the foundation of .NET Web services, including XML serialization, SOAP and WSDL.

Chapter 9 provides a practical discussion of data access using Web services. Chapter 10 introduces Windows Communication Foundation. The course concludes with a chapter on ASP.NET Web API, which is a great platform for creating RESTful services and can be used more widely.

  • Knowledge of the .NET Framework using C# and an understanding of the fundamentals of XML. Some experience in ASP.NET is advantageous.
Course Objectives
On completion of this course, the student should be able to
  • Gain a comprehensive understanding of the philosophy and architecture of Web services and Service Oriented Architecture
  • Acquire a working knowledge of creating and consuming Web services using the .NET Framework 4..5.1 and Visual Studio 2013
  • Attain a detailed knowledge of the building blocks of Web services, including XML, SOAP and WSDL
  • Understand issues in the ASP.NET programming model, such as caching, data handling and state management
  • Implement Web services and clients using WCF.
  • Understand the issues of interoperability between Web services created using ASP.NET and those created using WCF
  • Attain a working knowledge of ASP.NET Web API and its use in creating HTTP services and clients.
  • Understand the principles of Representational State Transfer and how to implement RESTful services and clients using ASP.NET Web API.
4 Days

Instructor-led course, with practical computer-based exercises.

Course Outline

  • 1. What Are Web Services?
    • Introduction to Distributed Computing
    • Network Latency
    • Object State and Scalability
    • Interoperability
    • SOAP
    • WSDL
    • UDDI
    • Web Service Business Models
    • Service Oriented Architecture (SOA)
    • ASP.NET Web Services
    • Windows Communications Framework (WCF)
    • Representational State Transfer (REST)
    • ASP.NET Web API

  • 2. Web Services Fundamentals
    • Creating a Web Service Using ASP.NET
    • Deploying a Web Service Using IIS
    • Testing a Web Service
    • HTTP
    • XML
    • SOAP 1.1 and SOAP 1.2
    • Web Service Clients
    • WSDL

  • 3. Developing ASP.NET Web Services
    • Using Visual Studio 2013 to Develop Web Services
    • Visual Web Developer
    • Using ASP.NET Development Server
    • An Overview of the Web Services Namespaces
    • Deriving from the WebService Class
    • @Webservice Attribute
    • WebService Class
    • Adding a WebMethod to Web Services
    • Debugging Web Services
    • WS-I Basic Profile
    • ASP.NET Configuration

  • 4. Web Service Clients
    • Web Service Proxies
    • Web Services Description Language Tool (Wsdl.exe)
    • Understanding the Proxy Code
    • Creating a Proxy with Visual Studio 2013
    • Returning Complex User-Defined Data Types

  • 5. ASP.NET Web Services Programming Model
    • Asynchronous Programming in Web Services
    • Asynchronous Events in .NET 4.0
    • Managing State in ASP.NET Web Services
    • Transactions in ASP.NET Web Services
    • Caching in ASP.NET Web Services

  • 6. XML Serialization
    • XmlSerializer
    • What Is Not Serialized
    • Writing and Reading XML
    • Customizing XML Serialization
    • XML Schema and XSD
    • Creating Classes from Schemas
    • XML Serialization and Web Services

  • 7. More about SOAP
    • The Structure of SOAP Messages
    • Using SOAP Headers
    • SOAP Faults
    • Document and RPC Style Messaging
    • Literal and Encoded Use
    • Customizing SOAP with Attributes
    • Using SOAP 1.2

  • 8. More about WSDL
    • The Need for Service Description
    • An IDL for Web Services
    • WSDL Namespaces
    • The WSDL Description Model
    • WSDL Descriptors as Schema
    • Message Description
    • Messaging Scenarios
    • Operations: Input, Output, and Fault
    • Messages
    • Service Description
    • Extending WSDL
    • .NET WSDL Classes
    • WSDL First!

  • 9. Data Access with Web Services
    • Multiple-Project Solutions in Visual Studio
    • Multiple-Tier Data Access
    • Data Access Using ADO.NET
    • A Data Access Web Service
    • Data Binding with Windows Forms
    • Binding to a Web Service

  • 10. Introduction to WCF
    • What is WCF?
    • Address, Binding and Contract
    • WCF Services and Clients
    • IIS Hosting
    • Interoperability with ASMX Web Services
    • Data Contracts
    • Deployment

  • 11. Introduction to Web API
    • ASP.NET Web API
    • Representational State Transfer
    • REST and Web API
    • HTTP Services Using Web API
    • Using Fiddler
    • ASP.NET Web API Clients
    • CRUD Operations

  • Appendix A. Learning Resources

  • Appendix B. Hosting in IIS 7.5
    • Installing IIS 7.5
    • IIS Manager
    • ASP.NET with IIS 7.5

Hardware and Software Requirements

Recommended software is Visual Studio Professional 2013, although it is feasible to use a combination of the free Visual Studio Express 2013 for Web and Visual Studio Express 2013 for Windows Desktop. The recommended operating system is Windows 7. Internet Information Services should be installed. See the course Setup Notes for details.

A good minimal hardware profile for this course would have a 1.8 GHz or equivalent CPU, 2 GB of RAM, and at least 10 GB of free disk space for tools installation and courseware. Copyright (c) 2014 • Object Innovations


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