This is a comprehensive Codeigniter REST API example. In this tutorial, we are learning how to create REST API in Codeigniter 4 application from starting.

REST is a defines a set of rules that makes the communication between multiple programs. We will deal with the CRUD operation using the REST API, this tutorial mainly gives precedence to HTTP methods such as GET, PUT, POST, DELETE.

This post is surely going to help all the novice developer. I will make sure that you must be aware of all the quintessential methods that are essential for knowing how to create rest web services in Codeigniter.

I will create a CI app, connect with database and Add, Update, delete and Show data by interacting with MySQL database. We will also have a look at Postmen to test rest API

You can extract the idea from the following video and get to know how What REST API is?

Install Codeigniter 4 Application

The first step begins with installing the CodeIgniter 4 application. This setup requires Composer Package Manager installed in your development machine.

composer create-project codeigniter4/appstarter

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After installation rename  appstarter folder, such as  codeigniter-rest-api.

Next, head over to the project folder:

cd codeigniter-rest-api

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You can skip the above process and directly download the Codeigniter application and get rid of the above process

#codeigniter #api #rest api