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Lesson 23API Development Tutorial

This lesson is a tutorial in which you will create a fully working REST API that uses GET, POST, PUT, and DELETE HTTP requests to perform CRUD (create, read, update, and delete) operations on a dataset. As a tutorial, the focus will be on writing code to develop a working solution.

LEARNING OBJECTIVES

By the end of this lesson, you will be able to:

• Understand the basics of REST and related terminology.
• Create a return handler.
• Create a request handler.
• Work with GET, POST, PUT, and DELETE actions.
• Use REST to perform create, read, update, and delete operations on a dataset.

OVERVIEW AND REQUIREMENTS

REST stands for Representational State Transfer. A REST can be used to expose information from a web application and to allow other applications to access that information. REST basically is an architecture that can be used to let web applications access resources and information about the state of a resource on another system. By using REST application programming interfaces (RESTful APIs), you can interact with other servers and systems.

In this lesson, you will learn how to create a number of elements that help make working with remote processes possible:

• Requests – In the context used in this lesson, a request is an HTTP request. All requests within the API are in the form of an HTTP request.
• Handlers – A handler is a function that processes or handles incoming requests from clients. Each type of request should have an appropriate ...