<body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar.g?targetBlogID\x3d8211560\x26blogName\x3dTech+Tips,+Tricks+%26+Trivia\x26publishMode\x3dPUBLISH_MODE_BLOGSPOT\x26navbarType\x3dBLUE\x26layoutType\x3dCLASSIC\x26searchRoot\x3dhttp://mvark.blogspot.com/search\x26blogLocale\x3den\x26v\x3d2\x26homepageUrl\x3dhttp://mvark.blogspot.com/\x26vt\x3d-5147029996388199615', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe" }); } }); </script>

Tech Tips, Tricks & Trivia

by 'Anil' Radhakrishna
A seasoned developer's little discoveries and annotated bookmarks.

Search from over a hundred HOW TO articles, Tips and Tricks


An overview of OData

- The Open Data Protocol ﴾OData﴿ is a data access protocol for the web built on core protocols like HTTP and commonly accepted methodologies like REST for the web.

OData provides a uniform way to query and manipulate data sets through CRUD operations ﴾create, read, update, and delete﴿.

Methods for serving OData:
 ~ Manually
 ~ WCF
 ~ WCF Data Services
 ~ MVC
 ~ Web API (the most convenient)

ASP.NET Web API supports both versions 3 & 4  of the protocol.

- A v4 endpoint can run side-by-side with a v3 endpoint.

- The new OData V4 libraries are in the assembly: System.Web.OData. System.Web.Http.OData are the V3 libraries

- Web API OData does not require Entity Framework. Use any data-access layer that can translate database entities into models.

- It includes features that make it much more ready for the enterprise environment, supporting:
a service definition language
 ~ error message formatting – missing from the documentation at the moment
 ~ dataset paging
 ~ advanced queries
 ~ batch requests

- There are two request and response body formats which are supported, AtomPub and JSON.

- The Azure Storage services & Azure Mobile Services support OData.

- Google's GData protocol which can be used for accessing its services like Calendar, Docs, and YouTube API, has similar features

Labels: , ,

Tweet this | Google+ it | Share on FB

« Home | Next »
| Next »
| Next »
| Next »
| Next »
| Next »
| Next »
| Next »
| Next »
| Next »

»

Post a Comment