Playwright API Testing Mastery with TypeScript
Master API testing using Microsoft Playwright and build production-ready automation frameworks that will set you apart in the competitive QA market. This comprehensive course takes you from complete beginner to confident API testing expert, regardless of your current programming experience.
Complete Learning Path - No Prerequisites Required
Foundation Building (Perfect for Beginners):
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Master API testing using Microsoft Playwright and build production-ready automation frameworks that will set you apart in the competitive QA market. This comprehensive course takes you from complete beginner to confident API testing expert, regardless of your current programming experience.
Complete Learning Path - No Prerequisites Required
Foundation Building (Perfect for Beginners):
Master API testing using Microsoft Playwright and build production-ready automation frameworks that will set you apart in the competitive QA market. This comprehensive course takes you from complete beginner to confident API testing expert, regardless of your current programming experience.
Complete Learning Path - No Prerequisites Required
Foundation Building (Perfect for Beginners):
Master JavaScript and TypeScript fundamentals from scratch in under 2 hours
Understand how APIs work and why testing them is crucial
Write your very first API tests using Playwright's powerful built-in tools
Learn to interact with You'll understand not just the "how" but the "why" behind effective API testing strategies. Most importantly, you'll have the confidence and skills to tackle any API testing challenge in your professional environment.
What's inside
Learning objectives
- What is api, how does it work, and how to interact with apis
- How to perform get, post, put, and delete requests using built-in playwright tools.
- How to make validation of json response object
- How to efficiently manage and organize your tests to scale
- How to build a framework using a "fluent interface design" to improve the api scripting experience
- How to improve reporting and error handling with additional log output
- What is json schema, how to make schema validation, and how to generate it automatically
- How to use ai and copilot agent to speed up api scripting development
- How to create customized assertions
- What is api, how does it work, and how to interact with apis
- How to perform get, post, put, and delete requests using built-in playwright tools.
- How to make validation of json response object
- How to efficiently manage and organize your tests to scale
- How to build a framework using a "fluent interface design" to improve the api scripting experience
- How to improve reporting and error handling with additional log output
- What is json schema, how to make schema validation, and how to generate it automatically
- How to use ai and copilot agent to speed up api scripting development
- How to create customized assertions
Syllabus
Introduction
Test Application Ovwerview
Configuration of Development Environment
Playwright Setup
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Syllabus
First steps in programming with JavaScript
Run your first code
How to create variables and constants, what are the differences between those and data types in JavaScript
Two ways to combine several values into a new desired value
How to create objects and arrays. What is the difference between those. Syntax rules. How to read data from an object or array. How to update/replace data in an object or array.
Introduction to different types of relational (comparison) and equality operators. How do they work.
These operators are often used in building the logic of the execution flow
Logical "AND", "OR" and "NOT" operators. How to use them in the execution flow with examples.
The flow control of the code execution with if/else conditional statement
How to repeat the code execution based on the desired condition. This is what the "loops" are for.
Create reusable components of your code using functions. Declarative functions, anonymous functions, and arrow functions. How to parametrize functions and pass an argument into a function. How to return the result of the function. How to export/import functions.
An alternative way of abstraction (code reusability) using classes and methods in JavaScript
What is an API, and how does it work
API method types such as POST, PUT, GET and DELETE
API error status codes
How to use Postman to test APIs
How to perform exploratory testing of APIs
How to debug APIs in Postman
How to make a GET request in Playwright
How to validate the status code of the response
How to read the response object
How to make a POST request in Playwright
How to validate the status code of the response
How to make an authorized post request
How to use authorization headers
How to get the access token value from the API response
How to make a Delete request in Playwright
How to make a validation of the deleted property
How to make a Put request in Playwright
How to reuse the properties of the previous response to make an update request
What is test hooks in Playwright
Before and After hooks
BeforeEach and AfterEach hooks
Best practices of using hooks
How to execute API tests in Playwright
CLI commands to run playwright tests
Run tests using VS Code extension
Summary of the section before moving to the next one.
What is fluent interface design
Creation of the Request Handler class
Initial mock-up of the helper methods
What are Test Fixtures in Playwright
Setup of API test fixture
Setting up a URL builder that will be responsible for constructing of request URL
Adding the constructor to the Request Handler class
Building the right structure to pass the request fixture and API base URL
Creation of a custom GET requester within the Request Handler to manage GET API requests
Creation of Post, Put and Delete request custom methods within Request Handler
Creation of a custom logger class to automatically generate and add execution logs to the Playwright HTML report
Creation of the status code validator to capture network logs on status code failure
Adding custom assertions, expanding the expect() assertions method to attach logs of the network activity to the reporter when the test fails.
Creation of a separate configuration file for API testing
Environments management
Environment variables for API testing
Improving the logic of the request handler, to clean up fields between requests, to make sure no concurrency issues in parallel execution
Creation of the helper function to handle access token creation
What is a playwright worker, and how to configure it
Different worker scopes
Configuring the automatic authorization for the test run as a default framework setup
Adding an option to the Request Handler to perform unauthorized requests when needed
Properties of the Playwright configuration file
Dependencies between the global scope and the project scope
How to configure Playwright for API automation
Adding test.step() method into the request handler to hide redundant steps from the reporter and improve reporter readability.
What is JSON schema, and what is the structure of the schema format
Creation of the schema validator class
Reading the JSON schema from a file
Creation of schema validator method using AJV
Creation of a custom assertion shouldMatchSchema() method for the schema validations
How to generate JSON schema automatically based on the API response and save it into a file
How to use AJV formats for assertion of the specific data formats in the JSON schema
How to organize and manage a JSON object with a request payload within the project
How to run the same test multiple times with a different dataset
How to run negative test cases efficiently
When you need detailed network information about requests and responses to debug test scenario, this is where you find it
How to manage environment variables in API testing
How to switch between different environments such as DEV, QA, PROD
How to organize Playwright UI and API automation in a single framework to make sure you will not have concurrency issues
How to run UI and API tests together or sequentially, slicing the scope by projects
How to set up Copilot in VS Code
Overview of how Copilot code completion works, its pros and cons
What is Copilot Ask mode
Explanation of the AI context window and how to add information to the AI context
How to use Copilot Agent to speed up framework maintenance, for example, update assertions for the tests.
How to use Copilot Agent to automatically generate new test assertions and automatically debug and fix failed tests
How to organize and manage Copilot instructions and prompts properly.
How to use AI and Copilot Agent to quickly write the code, adding new custom features. Let AI to do a heavy lift
How to convert UI tests into API tests with the help of AI
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