Online REST Assignment Help
REST is the acronym for Representational State Transfer. It is a style of architecture which provides standards between different computer systems present on the World Wide Web. This facilitates the systems to communicate with each other easily. The systems which are REST compliant are often called RESTful systems. These systems are stateless and work in tandem to separate the concern of server and the clients. Get REST assignment help instantly from BookMyEssay professionals who are always ready to provide you assignment assistance within given deadline.
Significance of Rest in Separation of Client and Server
The biggest advantage of REST is that it separates the concern of client and the server. By using REST the implementation of client and server can be done independently so that client code can be changed without affecting the operations of the server. Similarly, changes can be made on the server side without affecting the operations of the client.
Separation of the data storage concerns from the user interface concerns can improve the flexibility of the interface to work within different platforms. This also improves the scalability of the server by simplifying its components. This separation also helps each component to evolve independently. The usage of REST also allows different clients to perform the same actions and receive the same responses.
When we take statelessness of the REST paradigm into consideration, systems which follow this paradigm are considered stateless. This means that any server does not need to know anything about the current state of the client and vice versa. This helps both the client and the server to understand any message received without knowing any of the previous messages. The statelessness of the client and the server can be enforced by applying the resources and not the commands. Resources are the objects, things or the documents which one needs to send or store on other servers.
The communication between the client and the server involves making requests and sending responses through REST. The client makes or sends a request to the server for retrieving or modifying data while the server sends responses according to the request made. The requests consist of four components, an HTTP verb, a header, a path to the resource and an optional message body having data.
Practicing with REST
Let us take an example in which I will show you how to use REST. In this example let’s imagine that we are building a photo-collection site. We have to keep track of the users, venues and the photos taken of that venue. The site will have two files, an index.html, and a style.css. Each user of the site will get a username and a password. Each photo has a venue that is where it was taken. Also, each photo has an owner or the user who has taken the photo. All the venues have a name and an address. Here a REST system can be designed which can accommodate the following:
- Storage of photo, users and their venues.
- The accession of venues and the photos of a certain venue.
We can start by writing out the purpose of the REST system. It should take into consideration what kind of requests the user would want to make. Accordingly, what responses the server would return to the requests. Also, what would be the contents of each response? All these, when taken in mind, results in a REST program. The REST program for the request will look like this:
Request- GET /index.html Accept: text/html Response- 200 (OK) Content-type: text/html
Request- GET /style.css Accept: text/css Response- 200 (OK) Content-type: text/css
Request- GET /venues Accept: application/json Response- 200 (OK) Content-type: application/json
Request- GET /venues/:id Accept: application/json Response- 200 (OK) Content-type: application/json
Request- GET /venues/:id/photos/:id Accept: application/json Response- 200 (OK) Content-type: image/png
Complexions during Writing of REST Assignments
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