RESTFUL is referred for web services written by applying REST architectural concept are called RESTful services, it focuses on system resources and how state of resource should be transported over HTTP protocol to different clients written in different language. In RESTFUL web service HTTP methods like GET, POST, PUT and DELETE can be used to perform CRUD operations.
In document style web services, we can transport an XML message as part of SOAP request which is not possible in RPC style web service. Document style web service is most appropriate in some application where XML message behaves as document and content of that document can alter and intention of web service does not rely on the content of XML message.
- Q1: What REST stands for? …
- Q2: …
- Mention some key characteristics of REST? …
- What is SOAP? …
- Mention what are resources in a REST architecture? …
- What is cached response? …
- What are advantages of REST web services? …
- Mention whether you can use GET request instead of PUT to create a resource?
What is an API and how do you design it? ️✅
20. What makes REST services to be easily scalable?
REST services follow the concept of statelessness which essentially means no storing of any data across the requests on the server. This makes it easier to scale horizontally because the servers need not communicate much with each other while serving requests.
29. How does HTTP Basic Authentication work?
While implementing Basic Authentication as part of APIs, the user must provide the username and password which is then concatenated by the browser in the form of “username: password” and then perform base64 encoding on it. The encoded value is then sent as the value for the “Authorization” header on every HTTP request from the browser. Since the credentials are only encoded, it is advised to use this form when requests are sent over HTTPS as they are not secure and can be intercepted by anyone if secure protocols are not used.
27. How can you test RESTful Web Services?
RESTful web services can be tested using various tools like Postman, Swagger, etc. Postman provides a lot of features like sending requests to endpoints and show the response which can be converted to JSON or XML and also provides features to inspect request parameters like headers, query parameters, and also the response headers. Swagger also provides similar features like Postman and it provides the facility of documentation of the endpoints too. We can also use tools like Jmeter for performance and load testing of APIs.
