WEB API

WEB API

Web-API

https://restfulapi.net/rest-put-vs-post/
Header tags Fiddler
             Accept: text/html
             Content-Type: application/xml

CORS:

       Install-Package Microsoft.AspNet.WebApi.Cors
To enable for all controllers then add below two line in route config.
           EnableCorsAttribute cors = new EnableCorsAttribute("*","*","*");
            config.EnableCors(cors);
To enable CORS for a specific controller then
       add namespace System.Web.Http.Cors  and add this attribute above the controller           [EnableCors("*","*","*")]

To disable CORS then use [DisableCors] attribute.

EnableCors attributes
    Origins - http://localhost:123/
    Headers - Content-Type (json or xml)
    Methods - GET,PUT, ...

To Enable https in Visual Studio
    Import localhost certificate MMC and export to trusted certificates
To Enable Asp.net WEB API
     link

IHttpActionResult vs HttpResponseMessage

If we are calling the webapi service from JQuery then we need to Keep the access token in sessionstorage. sessionstorage is like a dictionary. If we want logoff from webapi then we need to remove the accesstoken item from sessionstorage.


======================================================================

Creating Help Pages for ASP.NET Web API
By default WebAPI returns JSON data if not specified Accept Header

Interview Questions

ihttpactionresult-vs-httpresponsemessage

Token Based Authentication Using ASP.Net Web API, OWIN and Identity With Entity Framework

Oauth vs OpenID

Add formatters to avoid errors in webpi.config
 GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings
     .ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
            GlobalConfiguration.Configuration.Formatters
                .Remove(GlobalConfiguration.Configuration.Formatters.XmlFormatter);

Error:
The 'ObjectContent`1' type failed to serialize the response body for content type 'application/json;
Solution:
Add below lines of code in global.asax file.

GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings .ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore; GlobalConfiguration.Configuration.Formatters .Remove(GlobalConfiguration.Configuration.Formatters.XmlFormatter);


Role based web api

WebAPI Security

Integrate Azure AD B2C with ASP.NET MVC Web App – Part 3
Secure ASP.NET Web API 2 using Azure AD B2C – Part 2
Azure Active Directory B2C Overview and Policies Management – Part 1
ASP.NET Web API Claims Authorization with ASP.NET Identity 2.1 – Part 5
ASP.NET Identity 2.1 Accounts Confirmation, and Password Policy Configuration – Part 2


*****************************************************************************
Web API Role based authorization 

Token Based Authentication using ASP.NET Web API 2, Owin, and Identity
 Below topics are present in this article

• AngularJS Token Authentication using ASP.NET Web API 2, Owin, and ASP.NET Identity – Part 2.
• Enable OAuth Refresh Tokens in AngularJS App using ASP .NET Web API 2, and Owin – Part 3.
• ASP.NET Web API 2 external logins with Facebook and Google in AngularJS app – Part 4.
• Decouple OWIN Authorization Server from Resource Server – Part 5.

Azure Active Directory B2C Overview and Policies Management – Part 1
WEBAPI Interview questions