Data asservice
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This document discusses OData and WCF Data Services. It provides an overview of OData including that it uses HTTP, ATOM/JSON formats, and URIs for resource identification. It also summarizes WCF Data Services, stating that it exposes CRUD operations as REST services using OData and allows creating flexible data services for the web. The document includes code examples for creating, retrieving, updating, and deleting data using WCF Data Services.
Data asservice
- 1. Mainframe Computers Thick Clients Thin Clients Mobile Apps Browsers Web Apps They all understand Internet world means how to make HTTP request and read HTTP response. In simple words you can browse Internet here
- 2. Dhananjay Kumar Telerik Data as Service
- 6. Introduction to WCF Data Service Demo Creating your first WCF Data Service URI Options and Server side paging Demo performing CRUD from Managed Application Q/A Agenda
- 7. It is a web Protocol It is used for updating and querying data It uses HTTP protocol It uses ATOM and JSON web message formats It uses URI for resource identification (REST) OData is released under the Open Specification Promise to allow anyone to freely interoperate with OData implementations. OData
- 8. Application :SharePoint 2010, IBM Web Sphere , SSRS, SQL Azure , Azure table Live Services : facebook ,Pluralsight , vanGuide , TechEd2010, NerdDinner Browsers , ODATA Explorer , Excel 2010 , LINQPAD, SesName Odata Browser Client Librarries : W7Phone , Javascript , .Net , PHP PRODUCER CONSUMER 12/19/2010 http://dhananjaykumar.net/ OData Consumer and Producer
- 9. WCF Data Services Framework Consists of a combination of patterns and libraries that enable the creation and consumption of data services for the web. The goal of WCF DATA Service is to facilitate the creation of Flexible data Services that are naturally integrated with the web WCF Data Service exposes CRUD operation as REST service using ODATA protocol WCF Data Service
- 10. • CREATE Data in Table HTTP POST • RETERIVE Data from table HTTP GET • UPDATE Data in table HTTP PUT • DELETE Data in table HTTP DELETE HTTP Verbs
- 11. Message Format JSON ATOM JSON for AJAX clients ATOM for any type of clients Message Format
- 12. Custom Data Model LINQ to SQL Class ADO.Net Entity Model Data Model
- 13. Flow Diagram
- 14. Demo
- 16. DataServiceContext context = new DataServiceContext(new Uri("http://localhost:7003/WcfDataService1.svc/")); Blogger blog = new Blogger { SpeakerId = 99, SpeakerBlog = "null", SpeakerName = "Mr Bill ", SpeakerTechnology = "Microsoft" }; context.AddObject("Bloggers", blog); context.SaveChanges(); Create Record
- 17. DataServiceContext context = new DataServiceContext(new Uri("http://localhost:7003/WcfDataService1.svc/")); SpeakersEntities entities = new SpeakersEntities(new Uri("http://localhost:7003/WcfDataService1.svc/")); var result = from r in entities.Bloggers select r; foreach (var r in result) { Console.WriteLine(r.SpeakerName + r.SpeakerTechnology); } Retrieve Record
- 18. DataServiceContext context = new DataServiceContext(new Uri("http://localhost:7003/WcfDataService1.svc/")); SpeakersEntities entities = new SpeakersEntities(new Uri("http://localhost:7003/WcfDataService1.svc/")); Blogger blogtoUpdate = (from r in entities.Bloggers where r.SpeakerId == 9 select r).FirstOrDefault(); blogtoUpdate.SpeakerTechnology = "C Sharp "; context.AttachTo("Bloggers", blogtoUpdate); context.UpdateObject(blogtoUpdate); context.SaveChanges(); Update Record
- 19. DataServiceContext context = new DataServiceContext(new Uri("http://localhost:7003/WcfDataService1.svc/")); SpeakersEntities entities = new SpeakersEntities(new Uri("http://localhost:7003/WcfDataService1.svc/")); Blogger blogtoUpdate = (from r in entities.Bloggers where r.SpeakerId == 99 select r).FirstOrDefault(); context.AttachTo("Bloggers", blogtoUpdate); context.DeleteObject(blogtoUpdate); context.SaveChanges(); Delete Record