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Web api
- 2. Contents • What is an API? • Why ASP.NET MVC Web API? • HyperText Transfer Protocol • REST • JSON • Introduction to Web API
- 7. Web API
- 11. Traditional apps Browser Request Index.html MVC4 Traditional Request / Response for ALL rendered content and assets
- 12. Web Application (SPA) Initial Request Application.htm MVC4 RequireJS Loader Page1 Partial.htm IndexViewModel.js Application.js (bootstrap) ViewModel (#index) ViewModel (#login) Model (LoginModel) JSON Requests HTML5 localstorage Handling disconnection
- 13. Web API Growth
- 17. WCF vs. ASP.NET Web API
- 18. POST SimpleService.asmx/EchoString HTTP/1.1 Host: localhost:1489 User-Agent: Mozilla/5.0 Accept: text/html Content-Type: application/json; Content-Length: 27 ... XML, JSON, SOAP, AtomPub ... HTTP Communication Headers Data Verb URL
- 19. POST SimpleService.asmx/EchoString HTTP/1.1 Host: localhost:1489 User-Agent: Mozilla/5.0 Accept: text/html,application/xhtml+xml Content-Type: application/json; Content-Length: 27 ... JSON vs. SOAP { "Age":37, "FirstName":"Eyal", "ID":"123", "LastName":"Vardi“ } Headers Data Verb URL <Envelope> <Header> <!–- Headers --> <!-- Protocol's & Polices --> </Header> <Body> <!– XML Data --> </Body> </Envelope>
- 20. Protocols & Formats SOAP REST OData JSON POX ??
- 21. ASP.NET Web API vs. ASP.NET MVC Dependency Injection Filters Content Negotiation Testing
- 22. Embrace HTTP
- 23. REST is.. “An architectural style for building distributed hypermedia systems.”
- 24. WSDL vs. REST WSDL description of a web services types defined in <xsd:schema> simple messages parts of messages interface specification operations of an interface input message output message binding of interface to protocols & encoding description of the binding for each operation service description URI and binding to port <definitions> <types></types> <message> <part></part> </message> <portType> <operation> <input> <output> </operation> </portType> <binding> <operation> </binding> <service> <port> </service> </definitions>
- 25. From RPC to REST ASP.NET MVC 4 and the Web API: Building a REST Service from Start to Finish book
- 26. URIs and Resources (Routing) ASP.NET MVC 4 and the Web API: Building a REST Service from Start to Finish book
- 27. HTTP Verbs ASP.NET MVC 4 and the Web API: Building a REST Service from Start to Finish book
- 28. “Hypermedia as the engine of application state” (HATEOAS) <?xml version="1.0" encoding="utf-8"?> <Tasks> <TaskInfo Id="1234" Status="Active" > <link rel="self" href="/api/tasks/1234" method="GET" /> <link rel="users" href="/api/tasks/1234/users" method="GET" /> <link rel="history" href="/api/tasks/1234/history" method="GET" /> <link rel="complete" href="/api/tasks/1234" method="DELETE" /> <link rel="update" href="/api/tasks/1234" method="PUT" /> </TaskInfo> <TaskInfo Id="0987" Status="Completed" > <link rel="self" href="/api/tasks/0987" method="GET" /> <link rel="users" href="/api/tasks/0987/users" method="GET" /> <link rel="history" href="/api/tasks/0987/history" method="GET" /> <link rel="reopen" href="/api/tasks/0987" method="PUT" /> </TaskInfo> </Tasks> /api/tasks
- 29. “Hypermedia as the engine of application state” (HATEOAS) ASP.NET MVC 4 and the Web API: Building a REST Service from Start to Finish book
- 30. The Advantages of REST over SOAP Simpler API for CRUD Standardize Development methodology Wide industry adoption, Ease of use Smaller payloads than SOAP Testability
Editor's Notes
- Use HTTP as an Application Protocol – not a Transport Protocol