API Testing

1 Courses 2 Projects 18 Hours

Overview

This course is designed to cover all aspects of API testing & Postman tool and also to provide users with the knowledge required to work with Postman tool at a professional level. This course addresses planning and performing API tests, developing the pre-test & post-test scripts using Postman, executing the API tests and generating HTML reports using different tools like Newman.

The course covers real-world best practices for effective use of Postman tool for API testing with practical examples demonstrated.

An assessment is included with the course and is a 30 minutes exam, 20 questions, multiple- choice exam which takes place on the final day of training program.

Course Fee

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Key Features

Flexible Schedule
24 x 7 Lifetime Support
Certification
Instructor Led Training

Curriculum

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COURSE INTRODUCTION

Course Introduction

API INTRODUCTION

Introduction to web application architecture
Introduction to
- Client & Server model
- HTTP & HTTPS protocols
- SSL & TLS protocols
- Hand-shake process
- HTTP Request Headers
- HTTP Response Headers
- Request & Response Cookies
- HTTP Methods/HTTP verbs
Safe methods vs Unsafe methods
- GET
- POST
- PUT
- PATCH
- DELETE
- OPTIONS & HEAD
Introduction to APIs
Where does an API reside i.e., middle-ware layer/business layer
Introduction to API architecture/Web-Services
- REST API
- SOAP API

API TESTING

What is API testing?
Advantages of API testing
Testing techniques used in API testing
Definition of API --> Understanding Protocol, API URI, end points, Query Parameters, Resources, HTTP verbs, Request body, Authentication type
Why Postman for API Testing ?

INTRODUCTION TO POSTMAN TOOL

What is Postman tool
Installation of Native Postman tool for Windows OS
Introduction to Postman landscape
Introduction to Postman Settings & GUI
Introduction to Postman API network & Postman Templates

POSTMAN WORKSPACES

An introduction to Workspaces (Personal, Team, Public, Private)
How to create and manage Workspaces
Invite to Workspaces
Leave Workspace & Delete Workspace
Collaboration of Workspaces

INTRODUCTION TO WIZDLER TOOL-SOAP API TESTING TOOL

What are SOAP web-services/APIs
What is WSDL file
Installation of Wizdler tool as a chrome app for the chrome browser for Windows OS/Mac OS
Introduction to Wizdler tool
How to parse SOAP WSDL file using Wizdler tool
Testing SOAP APIs using Wizdler tool & Postman tool
Understanding Request headers & Response headers
Understanding Authentication API examples using Wizdler tool

TESTING REST APIs & SOAP APIs WITH POSTMAN TOOL

Testing REST API request using Postman tool with HTTP protocol & HTTPS protocol
Testing SOAP API request using Postman tool
Validating Response Code, Response Description, Response Body, Cookies, Response Time, Response Size, HTTP Request Headers, HTTP Response Headers
Functional Testing of API’s (Positive & Negative Test Cases)
Understanding History tab in Postman tool [Save Responses, Delete, Clear All, Add]
REST API testing with authentication types [BASIC AUTH, DIGEST AUTH, ACCESS TOKEN]
Understanding query parameters on sending API request
Validating REST API that returns JSON/XML/HTML/IMAGES/DOCUMENTS with Postman client
Examples on validating response headers and status codes
What are Cookies & How to understand Cookies parameters
Analyzing Cookies after API response is received
Saving API responses in Postman client
Find & Replace option in Postman client
Postman – Browse view, Build view, Boot camp view, 2 pane view, console view

POSTMAN COLLECTIONS

Introduction to Collections
Creating & Understanding Collections feature
Setting up Test Project & Collections with REST APIs
Setting up Test Project & Collections with SOAP APIs
Exporting & Importing collections in .JSON format, from Postman tool and to Postman tool
Share Collections [internal Workspaces and to external users]
Run Collections Remotely with Collection URL
View & Collaborate Collections documentation in Postman web dashboard
Introduction to Collection Runner
Introduction to Collection- Changelog
Introduction to Collection Results - View/Download/Delete Historical Collection runs
Publishing Collections to Postman API Network & Templates
Unpublishing the Collections from Postman API Network & Templates
Create a Fork request, Create Pull request, Merge Changes in Postman tool
How to create Mock APIs using GET, POST, PUT, DELETE methods to simulate API response

CURL COMMANDS

Understanding cURL commands syntax for GET, POST, PUT, PATCH, DELETE HTTP methods
Deriving API URL and end point from cURL commands
Importing an API request from a browser into Postman tool
Importing an API request from a cURL command into Postman tool
Execution of imported cURL commands in the Postman tool

POSTMAN VARIABLES

Introduction to Postman variables
- Collection/Private variables [at different levels such as protocol, BaseURL, EndPoint, Request Headers, Request Body, Query Params, Authorization]
- Global variables [at different levels such as protocol, BaseURL, EndPoint, Request Headers, Request Body, Query Params, Authorization]
- Environment variables [at different levels such as protocol, BaseURL, EndPoint, Request Headers, Request Body, Query Params, Authorization]
How to set and get collection/private variables through wizard & manual ways
How to set and get Global variables through pre-request scrips at all layers [API, Folder, Collection]
How to set & get Environment variables thro pre-request scrips at all layers [API, Folder, Collection]
Creating Global & Environment variables and its usage at API, Folder & Collection levels

API AUTOMATION-PART 1

How to use Postman proxy to record all API calls from a browser
Postman monitors- Scheduling the API testing periodically (Monitors)
How to create quick automation test scripts using reusable Java Scripts/code snippets
How to create Pre-request scripts using reusable Java Scripts/code snippets
API chaining of API requests
Grabbing the response body into string for advance validations
Data Driven API testing using external data sources
- CSV
- JSON
Performance/Load testing of API testing in Postman tool
Introducting delays for scheduled or continuous load API testing

API AUTOMATION-PART 2

Command line execution with Newman tool
Basic introduction to NPM tool & NodeJS
Installing NodeJS & Newman tool
Running a collection with Newman tool
Exploring and Execution of all CLI commands using Newman tool
Generating the API test report(s) using Newman tool
- JSON/CL
- HTMLEXTRA
How to debug & troubleshoot in Postman
Logging feature to debug automation scripts
- console.log | console.debug | console.info | console.warn | console.error
Postman APIs integration with CI/CD (Jenkins)
Using Postman to Create a Reusable API Framework

CASE STUDY/ASSIGNMENT

Postman Tool hands on assignments against a REST & SOAP Web-Services/APIs
Building Test Plan & Test Cases for an API project
API objective/subjective test assessment

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Certification

API Testing Certification

SLearn certification is awarded, after successful completion of the project work which shows that trainee have learned, achieved skills and experiences from the project. All the acknowledged trainees are therefore eligible for challenging projects and better job opportunities in MNC's like TCS, IBM, Cisco, Cognizant, Wipro, Dell etc.