K6 – API Performance Testing – Live Training

K6 – API Performance Testing – Live Training

(K6 Tool, JavaScript Scripting, API Load Testing, Stress Testing, Spike Testing, Performance Metrics Monitoring, Threshold Validation, CI/CD Integration, Real-Time Performance Testing Project)

Master K6 API Performance Testing with this comprehensive, hands-on course designed for beginners and professionals looking to build expertise in performance testing, load testing, and API testing. Learn how to test and optimize the performance of web applications and REST APIs using the powerful k6 open-source tool.

This course covers essential concepts such as non-functional testing, performance testing strategies (load, stress, spike, and soak testing), and key performance metrics (latency, response time, throughput, and error rate). You will gain practical experience in writing k6 scripts using JavaScript, executing tests, and analyzing real-time performance reports to identify bottlenecks.

With real-world projects and hands-on exercises, you will learn how to perform API functional testing and performance testing, implement data-driven testing, and simulate real user traffic using virtual users (VUs). The course also includes integration with popular tools like Git, GitHub, GitHub Actions, Grafana Cloud, Postman, and JMeter, helping you build CI/CD-ready performance testing workflows.

By the end of this course, you will be job-ready for roles such as Performance Test Engineer, QA Automation Engineer, and SDET, with strong skills in k6 scripting, API testing, and performance optimization.

About the Instructor:

Live Sessions  Price:

For LIVE sessions – Offer price after discount is 300 USD 259 USD 89 USD Or 13000 INR 12900 INR 6900 Rupees

Enroll For Free Demo

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Free Demo On:

Indian Timings: 7th April @ 8 PM – 9 PM (IST)/

U.S Timings: 7th April @ 10:30 AM – 11:30 AM (EST)/

U.K Timings: 7th April @ 3:30 PM – 4:30 PM (BST)

Class Schedule:

For Participants in India: Monday to Friday @ 8 PM – 9 PM (IST)

For Participants in the US: Monday to Friday @ 10:30 AM – 11:30AM (EST)

For Participants in the UK: Monday to Friday @ 3:30 PM – 4:30 PM (BST)

What students have to say about Madhu Kiran:

Salient Features:

• 30 Hours of Live Training along with recorded videos
• Lifetime access to the recorded videos
• Course Completion Certificate

Who can enroll for this course?

• Software Testers / QA Engineers looking to upgrade their skills in API Load Testing and Performance Testing

• Automation Test Engineers who want to integrate performance testing into their automation framework

• Developers interested in JavaScript-based load testing and improving application performance

• DevOps Engineers aiming to implement CI/CD Integration for performance testing

• Performance Test Engineers who want to learn modern tools like k6 for real-time performance testing

• Manual Testers planning to transition into automation and performance testing

• Students / Freshers who want to start a career in software testing and performance engineering

What will I learn by the end of this course?

• LO1: Master the fundamentals of k6 scripting, including setup, syntax, and best practices for writing efficient and maintainable test scripts.

• LO2: Be fully prepared for real-world client interviews and job opportunities in performance testing using k6 (from basic to advanced levels).

• LO3: Develop the ability to generate, analyze, and interpret k6 performance metrics to identify system bottlenecks and optimize application performance.

• LO4: Design and implement robust performance test scripts using k6, leveraging its powerful built-in features and capabilities.

Course syllabus:

CHAPTER 1: INTRODUCTION TO PERFORMANCE TESTING & KPI METRICS

• Introduction to Non-Functional testing
• Practical example for demonstrating API client & server architecture model
  ○ API Request & API Response
  ○ HTTP & HTTPS protocols
  ○ HTTP Methods/HTTP verbs
  ○ HTTP Request Headers
  ○ HTTP Response Headers
  ○ Response Codes & Description
• Introduction to web application performance testing strategies
  ○ Stress testing
  ○ Load Testing
  ○ Endurance/Soak Testing
  ○ Spike testing
• Understanding Performance KPI metrics
  ○ Connection time
  ○ Latency
  ○ Response time
  ○ Throughput
  ○ Error rate
  ○ 90%, 95% & 99% percentile

CHAPTER 2: SET UP OF k6 TOOL & VISUAL STUDIO IDE

• Download & Installation k6 open-source version & k6 studio tool
• What is k6 and a walk-through of k6 documentation
• Installation of k6 dependencies [npm init -y ; npm install -D k6 ; npm install -D @types/k6]
• Setting up Visual Studio IDE on the client machine
• Installation of k6 useful plugins [k6 for Visual Studio, k6 snippets, k6 script generator] in Visual Studio IDE

CHAPTER 3: FUNCTIONAL TESTING OF REST APIs USING k6 [HANDS-ON-EXERCISE]

• Introduction to the REST APIs project which uses Bearer Access token authorization
• Creating a new project in VS editor for API testing (functional & performance) of the REST APIs
• Understanding k6 anatomy of a test script [import, export const options, export function setup, export default function, export function teardown]
• Creating functional automation tests for authorization enabled (Bearer token) REST APIs using GET, POST, PUT, PATCH, DELETE, BATCH http methods in k6 tool
• Configuring the JSON request payload within the k6 test script to test POST/PUT/PATCH APIs
• Creating & supplying the JSON request payload as an external JSON test data file to POST/PUT/PATCH APIs
• Creating ‘checks’ (functional validations/assertions) in k6 tool for GET, POST, PUT, PATCH, DELETE APIs
• Executing the test scripts from k6 local/terminal to analyze k6 output/test results
• Validating the response code, response time, response body, response size & response headers using k6 checks
• Printing the response attributes in the console to understand the API response attributes
• Analyzing to understand the k6 built-in metrics shown in the test results in k6 terminal such as
  http-req-duration, http-req-failed, http-req-receiving, http-req-sending, http-req-waiting, http-reqs, iteration-duration, iterations, max VUs, max duration
• Capturing the k6 test scripts execution results from console log into a log file
• Generating & analyzing the performance test report in CLI/JSON/CSV/HTML formats
• Configuring the summary trend stats in the generated test report in CLI/JSON/CSV/HTML formats

CHAPTER 4: PERFORMANCE TESTING OF REST APIs USING k6 [HANDS-ON-EXERCISE]

• Creating & executing load tests at API endPoint level in k6 framework
• Adding sleep (constant & random times) in k6 load test script, to simulate different think time scenarios
• Create a k6 load test to run for fixed duration and fixed number of virtual users
• Create a k6 load test to run for fixed iterations and fixed number of virtual users
• Create a k6 load test to run for fixed duration, fixed iterations and fixed number of virtual users
• Create a k6 load test to simulate ramp up and ramp down of virtual users to simulate real prod behavior
• Creating & executing load tests at API user journeys level in k6 framework by implementing scenarios & various executor strategies such as
  shared-iterations, per-vu-iterations, constant-vus, ramping-vus, constant-arrival-rate, ramping-arrival-rate, externally-controlled
• Conduct correlation amongst the dependent APIs to capture server generated dynamic values
• Configuring Thresholds against performance test metrics such as
  http_req_duration, http_req_failed, http_req_duration, http_reqs, checks
• Execution of k6 test scripts from k6 local i.e., local terminal with/without load tests configuration
• Generating & analyzing the performance test report in CLI/JSON/CSV/HTML formats

CHAPTER 5: CONDUCTING DATA DRIVEN AUTOMATION LOAD TESTING FOR REST APIs [HANDS-ON-EXERCISE]

• What is data parameterization
• Identifying & automating the test-data creation process using JSON, CSV, k6 utils & java script faker library
• Conducting data driven automation load tests for REST APIs using k6 tool
• Monitor the system performance to analyze the performance/load test results
• Interpret the performance test results from the generated test report to understand performance bottlenecks

CHAPTER 6: INTEGRATION OF k6 TOOL WITH GIT, GITHUB, GITHUB ACTIONS, GRAFANA CLOUD, POSTMAN, JMETER & CHAT-GPT TOOLS [HANDS-ON-EXERCISE]

• Download & Installation of Git tool
• Integration of k6 tool with Git, GitHub & GitHub Actions for CI/CD/CT
• Integration of k6 with Grafana cloud to visualize the test results in the cloud & observability
• Using k6 Studio to record web application browser events & generate k6 test scripts
• Integration & Conversion of Browser network calls (.har) into k6 test scripts
• Integration & Conversion of Postman API collections (.json) into k6 test scripts
• Integration & Conversion of JMeter test scripts (.jmx) into k6 test scripts
• Using Chat-GPT to generate k6 performance script from the given API spec swagger.json raw text format

FAQ’s – K6 API Performance Testing:

1. What is k6 and why is it used?
k6 is an open-source performance testing tool used to test the reliability, scalability, and performance of APIs, microservices, and web applications. It helps simulate real-world load and analyze system behavior under stress.

2. Is k6 suitable for beginners?
Yes. k6 uses JavaScript, making it relatively easy for beginners to learn. With basic programming knowledge, you can start writing test scripts quickly.

3. Do I need coding knowledge to learn k6?
Basic JavaScript knowledge is recommended, but not mandatory. The course covers scripting concepts from scratch, making it beginner-friendly.

4. What types of testing can be performed using k6?
k6 supports multiple performance testing types such as:

• Load Testing
• Stress Testing
• Spike Testing
• Endurance (Soak) Testing

5. Can k6 be used for API testing only?
Primarily, k6 is used for API performance testing, but it can also be extended for browser-based testing using k6 Studio and integrations.

6. How is k6 different from JMeter?
k6 uses JavaScript for scripting and is developer-friendly, lightweight, and easy to integrate with CI/CD pipelines. JMeter uses a GUI-based approach and XML configurations, which can be more complex to manage.

7. Can k6 be integrated with CI/CD tools?
Yes. k6 can be integrated with tools like GitHub Actions, Jenkins, and other CI/CD platforms to automate performance testing in pipelines.

8. What kind of reports does k6 generate?
k6 provides test results in CLI, JSON, CSV, and HTML formats. It can also integrate with Grafana Cloud for advanced visualization and monitoring.

9. What are Virtual Users (VUs) in k6?
Virtual Users simulate real users interacting with your application. They help in generating load to test system performance under different conditions.

10. What are thresholds in k6?
Thresholds define performance criteria (e.g., response time, error rate). If these thresholds are breached, the test is marked as failed.

11. Can k6 handle authentication-based APIs?
Yes. k6 supports various authentication mechanisms, including Bearer Token, OAuth, and API keys.

12. Is k6 free to use?
k6 open-source version is free. There is also a paid cloud version (Grafana k6 Cloud) with advanced features like distributed testing and monitoring.

13. Will I get hands-on experience in this course?
Yes. The course includes real-time projects and hands-on exercises covering functional and performance testing of REST APIs.

14. What tools are integrated with k6 in this course?
You will learn integration with Git, GitHub, GitHub Actions, Grafana Cloud, Postman, JMeter, and ChatGPT.

15. What career opportunities are available after learning k6?
After learning k6, you can pursue roles such as:

• Performance Test Engineer
• QA Automation Engineer
• SDET (Software Development Engineer in Test)
• DevOps/QA Engineer

How can I enroll for this course?

Enroll For Free Demo

OR

For any other details, Call me or Whatsapp me on +91-9133190573

Live Sessions  Price:

For LIVE sessions – Offer price after discount is 300 USD 259 USD 89 USD Or 13000 INR 12900 INR 6900 Rupees

Sample Course Completion Certificate:

Your course completion certificate looks like this……

Note:

To maintain the quality of our training and ensure a smooth learning experience for all participants, we do not allow batch repetition or switching between courses.

To reiterate, moving from one course to another or shifting from one trainer to another (even if it is the same course) is not possible. Changing batches or trainers in any form is strictly not permitted.

We request all learners to attend the scheduled sessions regularly and make the most of their learning journey. Thank you for your understanding and continued support.