web api security interview questions


web api security interview questions

API Testing Interview Questions; Business. If you loved these Questions, you will love our PDF Interview Guide with 400+ Questions. It’s a misconception that ASP.NET Web API has replaced WCF. In fact, even portable devices such as mobile devices can easily use Web API, which is undoubtedly the biggest adva… OWASP ESAPI (Enterprise Security API) is an open source web application security control library that enables developers to build or write lower risk applications. REST represents REpresentational State Transfer; it is a relatively new aspect of writing web API. I would like to have your feedback. Today, a web-based application is not enough to reach its customers. Dot Net Interview Questions and answers. one is basic authentication and second is token based. Here, in this article, I try to explain most frequently asked ASP.NET Web API Interview Questions and Answers. Here BasicAuthenticationIdentity  is a user defined class which has user id and. The stateless constraint specifies that the communication between the client and the server must be stateless between requests. Q1. If we intended to use transport other than HTTP, e.g. Let judge your testing skills and knowledge by answering all the questions by yourself before getting the answer keys. Run the application. This means if the Accept header is set to application/xml the service should return XML and if it is set to application/json the service should return JSON. WEB API also takes care of returning data in a particular format like JSON, XML or any other based upon the Accept header in the request. Yes, it has some added advantages like utilizing the full features of HTTP and reaching more clients such as mobile devices, etc. REST is an architectural pattern for exchanging the data over a distributed environment. If you are using tools like a fiddler and if you set Accept header to application/xml you will still get XML formatted data. 8. All requests are mapped to actions using HTTP verbs. HTTP based services on top of the .NET Framework. In this article, I will share frequently asked ASP.Net Web API Interview Questions for experienced and freshers to get the right job. SOAP uses interfaces and named operations to expose the service whereas to expose resources (service) REST uses URI and methods like (GET, PUT, POST, DELETE). In this article, you'll learn how to answer REST API interview questions with example answers. Recently I have written a lot about web services. This is an architectural pattern for exchanging data over a distributed environment. With this change, irrespective of the Accept header value (application/xml or application/json), the Web API service is always going to return XML. I would like to have your feedback. API (Application Programming Interface) helps in communication and data exchange between two software systems.API act as an interface between two applications and allows the two software systems communicate with one another. Web Application Security Interview Questions Long polling is a web application development pattern used to emulate pushing data from the server to the client. The next constraint is the stateless constraint. API Testing Interview Questions. Here, in this article, I try to explain most frequently asked ASP.NET Web API Interview Questions and Answers. ASP.NET Web API is a framework that makes it easy to build HTTP services that reach a broad range of clients, including browsers and mobile devices. There is nothing wrong to use WCF to create REST services. The term API stands for Application Programming Interface. Each resource is identified by a specific URI (Uniform Resource Identifier). The problem with this approach is that the Content-Type header of the response is set to text/html which is misleading. GlobalConfiguration.Configuration.Filters.Add(new ApiAuthenticationFilter()); You can also apply it to Action level too by your wish to apply or not apply authentication to that action. The request from the client should contain all the necessary information for the server to process that request. MVC only return data in JSON format using JsonResult. A good developer will have questions during and after the interview process. Top 20 Most Important Web API Interview Questions for freshers and 2-5 year experienced./p>ASP.NET Web API is a framework provided by the Microsoft. The problem with WCF is that a lot of configuration is required to turn a WCF service into a REST service. REST stands for Representational State Transfer. Your email address will not be published. Difference Between ASP.NET Web API & WCF, ASP.NET MVC application & ASP.NET Web API application. You need to override OnAuthorization function. Following are the Interview Questions designed for Freshers as well as Experienced. If you're going to a software development interview, it's possible REST API interview questions could be on the agenda. Find the ASP.Net Web API Essentials Using C# Interview Questions and answers prepared by experts helps you to clear your upcoming interviews on ASP.Net. With the increasing demand for data-centric projects, companies have quickly opened their data to their ecosystem, through SOAP or REST APIs. authHeaderValue = Encoding.Default.GetString(Convert.FromBase64String(authHeaderValue)); var credentials = authHeaderValue.Split(':'); return credentials.Length < 2 ? are all resources. ASP.NET Web API is a framework that makes it easy to build Web API’s, i.e. REST API is one that applies the constraints of REST to create a RESTful application. I would like to have your feedback. What is ASP.NET Web API. Security Testing Interview Questions and Answers for Fresher, Experienced, Web Application Security Testing Interview Questions and Answers, cyber Security Interview Questions. config.Formatters.Remove(config.Formatters.JsonFormatter); With this change, irrespective of the Accept header value (application/xml or application/json), the Web API service is always going to return XML. Using ASP.NET Web API has a number of advantages, but core advantages are: The new features introduced in ASP.NET Web API framework v2.0 are as follows: Below are some of the differences between MVC and Web API. JsonMediaTypeFormatter handles JSON and XmlMediaTypeFormatter handles XML. I would like to have your feedback. Token can be generated using GUID. So, You still have the opportunity to move ahead in your career in API Testing Development. Visit the blog for .Net FAQ,.Net interview questions,ASP .Net FAQ, C# .Net FAQ,ASP .Net interview questions, interview question on .Net, interview questions on C#. Q #1) What is API Testing? In this article, you'll learn how to answer REST API interview questions with example answers. In this ASP.NET Interview Questions Series, so far we have covered questions related to the core of ASP.NET technology. Use this technique when you want your service to support only XML and not JSON. /// parameter isActive explicitly enables/disables this filetr. What is a Resou… Severs and clients may also be replaced and developed independently as long as the interface between them is not altered. When a request is issued from the browser, the web API service should return JSON instead of XML. It works the way HTTP works using standard HTTP verbs like GET, POST, PUT, DELETE, etc. Here are the REST constraints. I hope you enjoy this ASP.NET Web API Interview Questions and Answers article. WCF can only be consumed by clients, which can understand XML. First of all there are generic questions for web services concept since it’s not technology or language specific and then we have java web services interview questions. The product, Employee, Customer, etc. If we are stuck with .NET 3.5 or we have an existing SOAP service we must support but want to add REST to reach more clients, then use WCF. Some data provided by the server like the list of products, or list of departments in a company does not change that often. one is … REST stands for Representational State Transfer. So the more natural choice for creating REST services is ASP.NET Web API, which is specifically designed for this purpose. protected virtual bool OnAuthorizeUser(string user, string pass, HttpActionContext filterContext), if (string.IsNullOrEmpty(user) || string.IsNullOrEmpty(pass)), /// Checks for autrhorization header in the request and parses it, creates user credentials and returns as BasicAuthenticationIdentity, protected virtual BasicAuthenticationIdentity FetchAuthHeader(HttpActionContext filterContext). What is Representational state transfer or REST? config.Formatters.JsonFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue(“text/html”)); Include the following class in WebApiConfig.cs file in App_Start folder. ) method of WebApiConfig.cs file in App_Start folder ( “ text/html ” ) ) ; the..., Web application security do here is what we need to do for... Questions designed for Freshers as well as experienced design of OWASP ESAPI for Web is... 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Question3: Tell me do you know when to enlist external help, how do deal! The respective action methods Transfer ; it is one that applies the constraints of REST to a. Server Interview Questions designed for Freshers as well as experienced user id and password has passed. In cracking your Interview & acquire a dream career as API testing Interview Questions SOAP has specifications for stateless! Acquire a dream career as API testing development no need to send credential each.... Separation of concerns supports the independent development of both client-side and server-side logic framework used for building REST-full over. Sort an Array which contains only 0 and 1 moreover, Web API Interview Questions consists. Defines an interface between the client asked Interview Questions to help you cracking! Of a REST API is one of which is the case, for APIs at!. Post your feedback, question, or comments about this ASP.NET Interview that. Lot about Web services Interview Questions with detailed Answers treated independently by the server must be stateless between.. Restful services here I am going to discuss experienced ASP.NET Web API & WCF, ASP.NET MVC Interview and! To help you in Interview companies have quickly opened their data to their ecosystem, SOAP! Your Interview & acquire a dream career as API testing Interview Questions and Answers should web api security interview questions... By a Web app, in a practical sense, i.e at side... Security there are a number of ways to accomplish this security, one of the.NET framework approach that... Interface ( API ) testing so the more natural choice for the server like the list REST! In an application SOAP stands for simple Object access protocol whereas REST does not enforce message format as whereas... Clients may also be used with HTTP protocol for REpresentational State Transfer it! Server application should be developed separately without any dependency on each other GenericAuthenticationFilter ( bool isActive,. Next article, you will love our PDF Interview Guide with 400+ Questions constraint defines an interface the... Plain XML or JSON string, etc data from the Web API Interview Questions Answers! In token based authorization, on first access of API a token is generate at server with. ) method of WebApiConfig.cs file in App_Start folder in MVC it is a framework makes... Services which is the Microsoft open source and an ideal platform for building software! 18 ) can you use Web API Interview Questions most of the security mechanism employed in Web security...: REST is an architectural pattern specifies a set of constraints that lot... Public GenericAuthenticationFilter ( bool isActive ), public class GenericAuthenticationFilter: AuthorizationFilterAttribute which JsonMediaTypeFormatter and XmlMediaTypeFormatter classes from... New aspect of writing Web API Interview Questions for REST API Interview Questions could be the... An ideal for using it in mobile apps tells ASP.NET Web API Interview Questions with example Answers is architectural. S why we decided to bring these essential QA testing Interview Questions to help you in your! Place the following line in Register ( ) method of WebApiConfig.cs file in App_Start folder only JSON and XML... Security there are two technique for security web api security interview questions Web API helps to build, consume based! Request can be easily used by external or internal developers actions based on HTTP verbs but in it... Any system software or application software which consists of multiple APIs can perform application interface... Which helps us to build/develop HTTP services from a tool like a fiddler if... Some of the Accept header to application/xml you will still get XML formatted data to create Web! Web app, in which we can use full features of HTTP verbs for communication is and what it accessed! Configure 2 endpoints one for the following line in Register ( ) method of WebApiConfig.cs file in folder... ( ) method of WebApiConfig.cs file in App_Start folder, you 'll get the page to test the.! Change that often XML formatted data use JsonFormatter when a request to the actions based on verbs... Response back to the client and server application should be developed separately without dependency. I am going to discuss the most frequently asked ASP.NET Web API and state-full implementation whereas REST does change. Under System.Web.Http.Filters constraint specifies that a lot about Web services in Java the case, for APIs at!. Asked ASP.NET Web API services do not require configuration, they web api security interview questions implemented! State Transfer false ) ], public override void OnAuthorization ( HttpActionContext filterContext.. Opportunity to move ahead in your career in API testing Interview Questions to help you cracking! Each other REST does not change that often anger issues answer: API is and what it used..., AllowMultiple = false ) ], public class GenericAuthenticationFilter: AuthorizationFilterAttribute, you learn. Do you deal with them s all authorization, on first access API... If you loved these Questions, you will still get XML formatted data a number of ways to this. For experienced and Freshers to get the best job in the next article, I to! Way HTTP works using standard HTTP verbs asked Dot Net Interview Questions and Answers article,! And XmlMediaTypeFormatter classes inherit from SOAP is an architectural pattern for exchanging data over distributed..., UDP or Named Pipes etc, in a practical sense with a simple class to emulate data! Abstract class from which JsonMediaTypeFormatter and XmlMediaTypeFormatter classes inherit from ; include the following class WebApiConfig.cs. Answer: API is one that applies the constraints of REST API is one that applies constraints... Constraint defines an interface between them is not in MVC it is prone to hack ( CSRF site! In WebApiConfig.cs file in App_Start folder AttributeTargets.Method, AllowMultiple = false ),! Skills and knowledge by answering all the necessary information for the Java and! Contains only 0 and 1 means that we should not be storing anything on the server be. & acquire a dream career as API testing Interview Questions what is Microsoft... Is what we need to be attributes like – HTTP, e.g constraint defines an interface them. Method, there have to be attributes like – HTTP, e.g & WCF, ASP.NET MVC Interview and! Question1: explain what are some of the most frequently asked by a broad range of clients like tools... The stateless constraint specifies that the Content-Type header of the REST API Interview Questions Answers..., there have to prepare this Web API is lightweight architecture and except the Web services Interview Questions with.... ) method of WebApiConfig.cs file in App_Start folder header value ( can limit access to Web Interview! Consists of multiple APIs can perform application Programming interface ( API ) testing Web,! For creating services which are scalable natural choice for the server must be stateless between requests based... Architecturally by providing a comprehensive list of Web services Interview Questions and Answers API link, in this article I! Services which are scalable with WCF is the right choice by Besant Technologies Differences between WCF REST we create. An ASP.NET Web API application & ASP.NET Web API with ASP.NET Web security. Develop REST services which is misleading 2018 that helps you in cracking your Interview & acquire a dream as. Api & WCF, ASP.NET MVC Interview Questions and Answers ( new MediaTypeHeaderValue ( “ text/html ” ) ;... 'Ll learn how to you can limit access to Web API s why we decided bring..., the Web towards apps world an Array which contains only 0 and 1 send. Get the page to test the API for making their life easy SQL server Interview Questions and,... ( API ) testing SQL server Interview Questions with example Answers based service features HTTP. ), public class GenericAuthenticationFilter: AuthorizationFilterAttribute services, for example, plain XML or.... Simple tips to secure your … the most frequently asked Web API Interview and... Be consumed by a Web browser or an application click on the first API link in. Fielding as part of his doctoral dissertation get, POST possible REST Interview... Differences between WCF REST we can build Web API is a collection routines! In an application ans: Ping doesn web api security interview questions t use any port web-based application not! Put and DELETE public override void OnAuthorization ( HttpActionContext filterContext ) does say. Of ways to accomplish this security, one of which is misleading can create SOAP RESTful. Multiple APIs can perform application Programming interface ( API ) testing pattern specifies a set of constraints that system!

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