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  1. www.javatpoint.com › what-is-rest-apiWhat is Rest API - Javatpoint

    Learn what a REST API is, how it works, and why it is popular for web and mobile development. See examples of REST API URL structure, HTTP methods, and response codes.

  2. www.javaguides.net › p › rest-api-tutorialREST API Tutorial - Java Guides

    • Rest Introduction
    • Rest Architectural Constraints
    • Rest Key Concepts
    • GeneratedCaptionsTabForHeroSec

    What is REST?

    The REST stands for REpresentational State Transfer. Let's understand the meaning of each word in the REST acronym. 1. Statemeans data 2. REpresentationalmeans formats (such as XML, JSON, YAML, HTML, etc) 3. Transfermeans carrying data between consumer and provider using the HTTP protocol

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    An API that has the following constraints is known as RESTful API: Client-server architecture:The client is the front-end and the server is the back-end of the service. It is important to note that both of these entities are independent of each other. Stateless:No data should be stored on the server during the processing of the request transfer. Th...

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    Resource

    The fundamental concept of a REST-based system is the resource. A resource is anything you want to expose to the outside world, through your application. Example 1:Resources for Employee Management System: - Employee - Department - Projects - Task - Address Example 2: Resources for Student Management System: - Student - Teacher - School - Class - Subject

    URI - Uniform Resource Identifier

    The resource can be identified by a Uniform Resource Identifier (URI).For web-based systems, HTTP is the most commonly used protocol for communicating with external systems. You can identify a unique resource using a URI. Consider, we are developing a simple blog application and you can define URIs for a blog Post resource: GET—http://localhost:8080/api/posts/:Returns a list of all posts GET—http://localhost:8080/api/posts/2: Returns a post whose ID is 2 POST—http://localhost:8080/api/posts/:...

    Sub-resource

    In REST, the relationships are often modeled by a sub-resource. Use the following pattern for sub-resources. GET /{resource}/{resource-id}/{sub-resource} GET /{resource}/{resource-id}/{sub-resource}/{sub-resource-id} POST /{resource}/{resource-id}/{sub-resource} Use sub-resources child object cannot exist without its parent.

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    Learn the basics and key concepts of REST API with examples and Java code. Understand the architecture, constraints, methods, status codes, and best practices of REST API design.

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  3. www.geeksforgeeks.org › rest-api-introductionREST API Introduction - GeeksforGeeks

    Jun 28, 2024 · Learn what REST API is, how it works, and what HTTP methods are used in it. See examples of GET, POST, PUT, PATCH, and DELETE requests and responses for a students API.

  4. medium.com › javarevisited › building-restful-apisBuilding RESTful APIs in Java: A Step-by-Step Tutorial

    • Setting Up the Project. Let’s create a new Spring Boot project using Maven to kickstart our API development journey. 1. Open your IDE and create a new Maven project.
    • Defining the Model. A crucial aspect of building APIs is defining the data model. For this tutorial, let’s create a simple model representing a “Product” entity.
    • Implementing the Repository. Now, let’s create a repository interface that will handle CRUD operations for our Product entity. package com.example.api.repository;
    • Building the Service Layer. The service layer acts as a bridge between the controller and the data access layer. Implement the ProductService interface and its implementation.

  5. www.javaguides.net › p › restful-tutorialJava REST API Tutorial - Java Guides

    • REST Basics. Overview of REST. What is Payload in REST API? // New. REST API - HTTP Methods // Popular. REST API - HTTP Status Codes // Popular. Advantages of REST.
    • Design REST API Guide. How to Identify REST Resources. How to Design URL to REST Resource // Popular. How to Assign HTTP methods to REST Resources. How to Model JSON Representation Format // Popular.
    • Rest API Design Best Practices. Restful API Design Best Practices // Popular.
    • Build REST API with Jersey Rest Framework. Jersey Rest Hello World Example. Jersey JAX-RS Restful CRUD Web Services Example // Popular. Jersey Rest Developer Guide.

  6. www.freecodecamp.org › news › what-is-rest-rest-apiWhat is REST? Rest API Definition for Beginners

    Jan 28, 2022 · Since we're talking about REST APIs, our definition of an API will not go beyond the scope of the web. API stands for Application Programming Interface. An API establishes a connection between programs so they can transfer data.

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  8. camunda.com › blog › 2023What is REST API in Java? Guide with Examples | Camunda

    Sep 5, 2023 · Learn what REST API is, how it works, and why it is important for web development. Follow a step-by-step tutorial to create a simple CRUD API using Spring Boot, a popular Java framework.