REST is the primary foundation of data communication in the current application architecture. The REST style helps leverage the lesser use of objectivity to make an application more suitable for the internet. Therefore, it can often be considered the terminology for the internet and wholly based on resources and acts as an interface. The communication between the client and server always happens over HTTP. It uses the HTTP methodologies to establish communication between the client and the server. It also allows serves to cache the response that improves the application’s performance.
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The main feature of a REST API is that the service is stateless. Therefore, every time we refer to it, it will be necessary to remind us of our data, whether our user credentials or any other information.
On the one hand, what might seem a disadvantage implying the tiresome task of repeating data, is one of its strengths. Since it does not memorize them, it allows greater scalability. Also, there does not need such powerful servers capable of storing all the states of their clients.
Any developer will appreciate knowing the error while working with an API and making mistakes. Therefore, the possibility offered by the REST architecture of including error messages providing some clue in this regard is also relevant.
Each change in the architecture of REST API has to be reflected in its documentation that any developer using it knows what to expect.
Another added advantage of REST API is that it satisfies the expectations of those who use the JSON language as it helps those who depend on XML.
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The principle behind the client-server limitations is the separation of its concerns. Separating the user interface concerns from the data storage concerns improves the portability of the user interfaces across multiple platforms. It also enhances scalability by facilitating the server elements. The structured interface describes communication between clients and the servers. Once a developer becomes familiar with one of your APIs, he can follow a similar approach for other APIs.
REST authorizes requesting clients access and manipulate web resources using a uniform and predefined set of rules. The Rest-API serves as a gateway or a single entry into the system. It summarizes the business reasoning and handles all the client requests, taking care of the authorization, authentication, and other necessary tasks before accessing the application resources.
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REST API is a distinctive design pattern for architecting APIs for web and mobile applications. It is a design pattern that includes hypermedia, resource naming, HTTP methods usage, caching, versioning, etc. Rest APIs are also efficient, high-performing, consume less bandwidth, and are cost-effective because developers can use them without third-party tools. While Rest API can be used over nearly any protocol, it usually takes advantage of HTTP for Web APIs.