Rest API vs. Web API: All You Need To Know - (r)

Apr 14, 2023
Learning about rest api vs web api

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In this article, we will discuss two common methods for creating APIs: representational state transfer (REST) API as well as Web API.

What Is a REST API?

REST also defines multiple architectural constraints for building applications that make use of HTTP to connect:

  • Client-server architecture
  • Statelessness
  • Interface uniform
  • Cacheability
  • Layered System Architecture
  • Code on demand

It's easier to work with as compared to other API protocols or architectural models. Additionally, there are other advantages , making REST the ideal choice for the majority of API developers.

  • Methods to HTTP: REST typically works with one of the methods GET, POST DELETE PATCH, or PUT techniques to retrieve data and making requests depending on the service implementation. The results are common HTTP successes and failures. Other options are the options, HEAD and TRACE. These methods are inconsistent with respect to the provider since some providers might only implement a single method according to their specific requirements.
  • A decoupled structure The REST structure is designed as a client-server system, meaning it's logic is distinct from presentation. It's multiple elements can be worked on simultaneously without interference.
  • Scalability REST APIs are generally considered to be simple that makes them simple to work with. If you want to scale up the functionality of your app, you are able to create new APIs, which incorporate a more complicated algorithm.
  • Cacheability: While REST is not reliable and non-stateful however, the server's responses to the client may be stored in order to avoid repeated requests. Server responses usually provide information on how caching should be carried out as well as the ability of the client to cache requests for a particular period of time.

What is an API? for Web? Web API?

Web APIs incorporate protocol specifications using concepts like caching, versioning and diverse format of content. Web APIs are defined as a Web API, but it may not be a REST API, based on the development method. Web APIs usually are utilized in a distributed system that offer services across diverse devices, like laptops and phones that only function on the web application's client side.

Below are two instances of web APIs widely utilized:

  • Twitter APIs:These include Twitter search API, which is Twitter search API that provides methods to connect with Twitter search. Additionally, it includes the REST API which permits you to gain access to the core Twitter information.

Web API is a Web API functions as a system-tosystem interaction. This is how data in the API can be transferred:

  1. Client devices send requests to the web server.
  2. The server that takes the request, then processes it and then forwards it onto the client device so that it can execute it.
  3. The output will be displayed to the user.

The beneficial features of Web APIs include:

  • Lightweight architecture Web APIs are an excellent choice for devices with low-bandwidth, like smartphones.
  • Descriptive message headers Web APIs include descriptions of headers that are used for messages, that may include information about the type of content, the security strategy or the best method to handle caching.
  • Resource-oriented services Web API allows you to provide the resource using a method which can be used in conjunction with the REST Architecture.
  • Simple configuration and set-up Web APIs are easy to configure and use.

Web API in contrast to. REST API

Now, let's compare the two APIs in greater in depth.

Similarities in Architecture

Web and REST APIs share several design and architectural similarities. Let's examine them.

  • Layered Architecture Both of them provide a layered design where APIs are deployed and storage and authentication for requests can be carried out across several servers.
  • Resources-oriente D in resource-oriented architectures the resources are assigned in Uniform Resource Identifiers (URIs). The REST API and Web are both focused on resources. Web and REST APIs both have an orientation towards resources since they supply resources using URIs.
  • C acheability in REST or Web APIs requests that provide the same data each time they're invoked are stored in caches. For instance, when you execute an OPTION on an endpoint is stored in the cache, since it returns the same result regardless of the number of occasions it's used. This characteristic, also known as idempotence, can be the basis of determining what data should be cached. It is an ongoing aspect in REST but not so often when it comes to web APIs. An idempotent API call is one where the result won't be changed, regardless of how many instances it's used -- even with the possibility of changes in the server. Examples of such methods are HEAD, GET, and OPTIONS.

Architecture Differences

Although Web APIs as well as REST APIs are similar in their architectural design, they have some key differences.

  • Client-side as well as server-side coordination:REST APIs have loosely coupled architecture, allowing to be developed independently on the server and client sides. Through the use of Web APIs, changes are made between the servers and clients are much better are coordinated.
  • InterfaceDepending on the details of their implementation, REST APIs generally use industry-standard interfaces. Web APIs use customized interfaces, based on the API provider.

Communication

Web APIs can be adapted to accommodate any style of communication, while REST APIs are primarily used in conjunction with JSON, XML, and plaintext. The result is that REST APIs are suitable to transmit textual data, such as read, create updates delete, read, or create (CRUD) actions against databases, however they are restricted when working with binary information.

Use Cases

Although these API formats can be used interchangeably in a lot of cases but there are some scenarios where one is better over one of the others.

  • Cloud-based applications and services due to their state-of-the art nature, REST APIs can be used to create cloud-based services since stateless components can scale and redeploy to accommodate the changes. Cloud-based services and metrics tend to best be exposed via REST APIs because there's no requirement to write specific software.
  • Streaming services: Web APIs have better support and low overhead of application binary data on memory or bandwidth-constrained devices, so they're best for services that require streaming.
  • Database manipulation (CRUD): It's simpler and easier to expose the functionality of CRUD over an API REST than a Web API.

REST APIs can be extremely challenging to manage for massive requests that require access to resources that aren't organized in an orderly hierarchy. It's because of URIs that refer to sources. That means dealing with this type of scenario can be done by changing URI routes for queries, query parameters, as well as the request body, which defeats the purpose of the REST. In this case, web APIs are the best choice because they are customizable and provide extensive support in URI response and headers to request.

With support for techniques like Asynchronous calls, which are not easily implemented using the REST architecture Web APIs could be the best way to go when you need to implement complex API requirements.

Summary

Web APIs as well as REST APIs could be employed to develop applications that provide the required resources and communicate via HTTP. As REST specifies architectural limitations with respect to a standard interface, web APIs tend to be thought of as RESTful subject to their implementation.

The two formats Web APIs and REST APIs are lightweight formats that can be used in a range of circumstances. But, in comparison to REST APIs Web APIs offer a superior user experience, in addition to support for more message types as well as integration with complex communications between clients and servers using binary information.

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