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Certificate Associate in Web Development – RESTful Web Services

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Certificate Associate in Web Development – RESTful Web Services

CAWD RESTful Web Services

The name Representational state transfer (REST) was coined by Roy Fielding from the University of California. It is a very simplified and lightweight web service compared to SOAP. Performance, scalability, simplicity, portability, and modifiability are the main principles behind the REST design.

The REST API allows different systems to communicate and send/receive data in a very simple way. Each and every REST API call has a relation between an HTTP verb and the URL. The resources in the database in an application can be mapped with an API endpoint in the REST.

When you are using a mobile app on your phone, your phone might be secretly talking to many cloud services to retrieve, update, or delete your data. REST services have a huge impact on our daily lives.

REST is a stateless, cacheable, and simple architecture that is not a protocol but a pattern.

This course will walk you through the foundation of Representational State Transfer (REST) and will explain how REST couples with the HTTP protocol. You will look into key principles that have to be considered while turning any HTTP application into a RESTful service-enabled application. You will also look at the differences between describing RESTful and classic Simple Object Access Protocol (SOAP)-based web services.

Let’s look at the key principles around the HTTP and URI standards, sticking to which will make your HTTP application a RESTful service-enabled application:

  • Everything is a resource
  • Each resource is identifiable by a unique identifier (URI)
  • Resources are manipulated via standard HTTP methods
  • Resources can have multiple representations
  • Communicate with resources in a stateless manner

Learning Objectives

Upon completion of the course, participants should be able to:

  • Demonstrate knowledge of fundamentals of REST architecture and verbs
  • Handling Routing for REST Services, describes how to add routing to our API
  • Simplifying RESTful Services with Popular Frameworks, presents quick prototyping API with frameworks
  • Working with database (PostgreSQL), JSON, explains the benefits of PostgreSQL and a JSON store for creating APIs.
  • Building a REST API Client and Unit Testing, presents techniques for building client software and API testing with unit tests
  • Deploying Our REST Services, shows how we can deploy services built on Nginx and monitor them
  • Handling Authentication for Our REST Services, discusses securing our API with basic authentication and JSON Web Tokens (JWT)

Who should attend

This course will help beginners, programmers, application developers and software engineers pick the right strategy for developing cross-platform web applications that run on a variety of desktop computers as well as mobile devices. The primary audience is developers who need to learn how to develop web applications using the HTML5 stack.

Prerequisite

Foundational certificate in Programming

Delivery Method

Mix of Instructor-led, case study driven and hands-on for select phases

H/w, S/w Reqd

JavaScript, CSS, HTML, Chrome Browser with at least 2GB RAM and a Windows /Ubuntu/Mac OS X operating system

Duration

24 Hours (2 days Instructor led + 8 hours online learning)

Enroll Now
  • Course Name: Certificate Associate in Web Development – RESTful Web Services
  • Location: Singapore
  • Duration: 2 days classroom + 8 hours online
  • Exam Time: 60 minutes
  • Course Price: Call for price
  • Minimum requirements: Foundational Certificate in Programming

ITPACS LogoITPACS Web Certification Road Map

Course contents

# Topic Method of Delivery
Day 1
1

Chapter 1 – Introduction to Web Services

The different Web Services available

Representational State Transfer (REST) architecture in detail

Introduction to Single Page Applications (SPA) with REST

Setting up a project and running a development server

Building our first service

Instructor Led
2

Chapter 2 – Handling Routing for REST Services

Building a basic web server

Creating a basic router

Understanding httprouter, a router package

Introducing URL shortening service design

Instructor Led
 

Case study

Hands-on session

Day 2
3

Chapter 3 – Working with PostgreSQL, JSON

Introduction to the PostgreSQL database

Installing PostgreSQL and creating users and databases

Learning about database driver

Implementing a URL shortening service with PostgreSQL and a Base62 algorithm

Exploring the JSON store in PostgreSQL

Instructor Led
4

Chapter 4 – Building a REST API Client

What is a client software?

Basics for writing a command-line tool

Introducing requests, a Python request-like library

Inspecting GitHub REST API

Creating an API client

 
 

Case Study

Hands-on session
 

Assignment

Online Self paced

Certification

  • Certificate Title: Certificate Associate in Web Development – RESTful Web Services
  • Certificate Awarding Body: ITPACS

About ITPACS

Information Technology Professional Accreditations and Certifications Society (ITPACS) is a non-profit organization focused on improving technology skills for the future. ITPACS offers associate level, professional level and leader certifications across 6 domains including data science, web development, mobile development, cyber security, IoT and blockchain. Applicants have to go through a exam eligibility process demonstrating their experience.

Eligibility

The Associate certification is catered to individuals with less than 1 year working experience in the field. This is ideal for newcomers starting out in the profession or those seeking to make an entry into the profession. Applicants are required to have completed the application process prior to taking the exam.  

Styling Eligibility

Exam

  • Exam Format: Closed-book format.
    Questions: 30 multiple choice questions, coding exercises
    Passing Score: 65%
    Exam Duration: 60 minutes
    Proctored
  • Exam needs to be taken within 12 months from the exam voucher issue date

ITPACS Certification Training Road Map

Web Applications

Web Developers build web applications. A web application is one that helps an organization run its business online. ​​Most web applications are built in a three-tier architecture that consists of three important layers: data, logic, and presentation. In web applications, the application structure usually breaks down to database, server, and client, while in modern web development; it can also be broken into database, server logic, client logic, and client UI.

Dynamic web pages are known as pages that are created as soon as a call is sent to the server. So data can be built interactively into the sites. They are particularly helpful when you need to react to user inputs. Forms can be evaluated immediately and the content of the next page can be shown. The application possibilities are nearly unlimited. Whether and to which extent databases are used depends on the goal. Dynamic web pages actually do not need a database.

A popular paradigm for implementing this model is the Model-View-Controller (MVC) architectural pattern. In the MVC paradigm, the logic, data, and visualization are separated into three types of object, each handling its own tasks. The View handles the visual part, taking care of user interaction. The Controller responds to system and user events, commanding the Model and View to change appropriately. The Model handles data manipulation, responding to requests for information or changing its state according to the Controller’s instructions.