While ASP.Net Web API is perfect for building HTTP services. WCF is good for developing service-oriented applications, Web API is simple and no configuration needed to run. Light Weight because only required information is passed. Heavy weight because SOAP messages have more than just data Web API supports any media format including XML and JSON. Multiple protocol support (like HTTP, TCP, Named Pipes and more) Both Web API and WCF can be self-hosted or can be hosted on the IIS Server.Web API supports any media format including JSON, XML. One major advantage of Web API is that it is the best fit with MVC pattern. and provided an ideal platform for building RESTful applications. Web API is a Framework to build HTTP Services that can reach a board of clients, including browsers, mobile, IoT Devices, etc. WCF supports SOAP and XML formats.ĪSP.NET API is a framework for building non-SOAP based services over HTTP only. WCF service is good for Message Queue, duplex communication, one-way messaging. Windows Communication Foundation is a framework used for building Service Oriented applications (SOA) and supports multiple transport protocols like HTTP, TCP, MSMQ, etc. Windows Communication Foundation is designed to exchange standard SOAP-based messages using a variety of transport protocols like HTTP, TCP, NamedPipes or MSMQ, etc. Some of the commonly seen HTTP Status Codes are: 200 (Request is Ok), 201 (Created), 202 (Accepted), 204 (No Content), 301 (Moved Permanently), 400 (Bad Request), 401 (Unauthorized), 403 (Forbidden), 404 (Not Found), 500 (Internal Server Error), 502 (Bad Gateway), 503 (Service Unavailable) etc. 5xx: Server Error-It means the server failed to fulfill an apparently valid request.4xx: Client Error-It means the request contains incorrect syntax or cannot be fulfilled.3xx: Redirection-It means further action must be taken in order to complete the request.2xx: Success-It means the action was successfully received, understood, and accepted.1xx: Informational-It means the request has been received and the process is continuing.HTTP Status Codes are grouped into five categories based upon the first number.įollowing are the set of status codes with its meaning: The first digit of the Status-Code defines the class of response. Response Header of each API response contains the HTTP Status Code. HTTP Status Codes are the 3 digit integers which contain in server response. It may contain the port/path/query strings/fragments.Įxpect to come across this popular question in Web API c# interview questions. Here the red colored part is the protocol and the black colored part is the domain, other parts are optional. URL consists of two required components The Protocol & The Domain. Using URN is inefficient, as there can be many resources with the same name. This can be achieved with the help of both URN and URL. URI is used to send requests to the server. URI can be categorized into 2 as URL and URN We can find that person by address or by name or by both. URI is used to identify resources, for example, in the real world assume there is a person named “Test Person” who lives in “403, Test City, World”. URI stands for Uniform Resource Identifier. URI is a string of characters used to identify a resource on the internet either by location or by name, or by both. Web API increases TDD (Test Data Driven) approach in the development of RESTful services. We can expose services to a variety of clients easily like browsers or mobile devices, etc.Web API is a lightweight architecture and is good for the devices which have limited bandwidth.Create resource-oriented services using the full features of HTTP.Using ASP.NET Web API, we can create non-SOAP based services like plain XML or JSON strings, etc. HTTP is a stateless protocol, meaning that after one cycle of request and response the server forgets everything about the cycle, and it considers another request from the same client as a new request from a new client.īelow is a simple Client-Server architecture of HTTP protocol HTTP (Hypertext Transfer Protocol) is an application level protocol that is used to deliver data such as html files, image files, query results, etc. So there will be a client server communication using HTTP protocol. ASP.NET Web API provides an ideal platform for building RESTful applications on the. The advantage of Web API is that it can be consumed by a broader range of clients including web browser and mobile applications, IoT etc. ASP.NET Web API is a framework provided by the Microsoft open source technology for building and consuming HTTP based services on top of.
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