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API Testing

10,620 Learners 1,121 Google Ratings

Learn the fundamentals of API testing in this comprehensive course designed for beginners and professionals. Master the skills to test APIs effectively, understand HTTP methods, validate responses, and ensure seamless integration. Gain hands-on experience with popular tools like Postman and SoapUI while building a solid foundation in testing automation and API performance. Perfect for anyone seeking to enhance their testing capabilities in modern software development.

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API Testing Course Overview

The API Testing course provides a comprehensive learning experience tailored for beginners and professionals seeking to deepen their understanding of testing Application Programming Interfaces (APIs). APIs serve as the backbone of modern software applications, enabling seamless communication between different systems and services. This course emphasizes the critical role of API testing in ensuring data integrity, security, and seamless functionality in interconnected software ecosystems.

Learners will start with foundational concepts, such as understanding API architecture, the role of HTTP methods like GET, POST, PUT, DELETE, and interpreting JSON and XML responses. Progressing through the course, participants will delve into advanced topics such as API authentication (OAuth, JWT, API keys), error handling, and performance testing to assess API scalability under different load conditions.

Hands-on practice is at the core of the curriculum, with guided exercises using industry-leading tools like Postman for manual testing, Rest Assured for automation, and Swagger for API documentation. Students will also explore integrating API testing into CI/CD pipelines to streamline quality assurance processes. Real-world case studies and projects will provide exposure to testing APIs for web applications, mobile apps, and microservices, ensuring they meet functional and non-functional requirements.

By the end of the course, participants will have mastered the skills necessary to design and execute effective API test strategies, troubleshoot and resolve issues, and contribute to building reliable and high-performing software systems. Whether you're aiming to start a career in QA or enhance your existing development skills, this course will prepare you to excel in the fast-paced world of software development and testing.

API Testing Curriculum

API testing basic ☰ 16 Topics
  • Client-Server Architecture
  • Presentation, Business and Database layers
  • What is an API?
  • What is API Testing?
  • Difference between API testing and Unit testing
  • Web services -> an introduction
  • HTTP Structure
  • XML and JSON -> an overview
  • URI and URL
  • Tools for API Testing
  • Approach of API Testing
  • Challenges of API Testing
  • What to test for in API testing
  • HTTP methods
  • Status codes
  • Example APIs
POSTMAN Tool ☰ 7 Topics
  • Introduction to POSTMAN tool and installation
  • Creating requests in Postman
  • Creating collections in Postman
  • Understanding variables and environments in Postman
  • Authorization in POSTMAN
  • Assertions/Test scripts in POSTMAN
  • Command line integration with Newman
Rest Assured ☰ 10 Topics
  • What is REST?
  • Rest Architectural Elements
  • Configure Eclipse with Rest-Assured
  • REST API Test using Rest Assured
  • Validate Response Status using Rest Assured
  • Validate Response Header using Rest Assured
  • Read JSON Response Body using Rest Assured
  • POST, PUT, and PATCH Request using Rest Assured
  • Authentication and Authorization in REST Web Services
  • Sample automation framework design using REST Assured
Soap UI ☰ 14 Topics
  • Introduction - SoapUI WebServices Testing Tool
  • Exploring WSDL
  • Soap Messaging
  • Started with Soap UI
  • Assertions
  • Groovy Scripting
  • RESTful Web Services
  • Web Service Extensions
  • Testing Databases with SoapUI
  • File Reading
  • Introduction to SOAP Web Services
  • SOAP UI / Ready API Basics and Installation
  • Create a Project, Test Suite, Test Case
  • Assertions

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API Testing Tools and technology Covered

  • postmanPostman
  • rest-assuredRest Assured
  • soupuiSoapUI
  • jmeterApache JMeter
  • consoleConsole
  • swagerSwagger UI
  • readyapiReadyAPI
  • restapiRest
  • rapidRapidAPI
  • insomnia APIInsomnia
  • saSecurity testing
  • seleniumSelenium
  • restapiAirborne

Why Choose API Testing Course from KVCH

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Instructor-led Live Sessions

KVCH experts with in-depth knowledge create a focused learning environment by presenting learners with real-world industry problems and focusing on solutions.

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Live Training Sessions

During our certified training, seasoned instructors and industry experts conduct remote sessions to share their extensive knowledge with the learners.

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Flexible Curriculum

Professionals can obtain in-depth knowledge of cutting-edge digital marketing training by taking advantage of the availability of specialised certificates.

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Expert Support

Through a ticketing system that operates around the clock, our technical support staff is available to answer any questions you may have.

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Certification

Upon finishing the course and the assigned tasks, you will be awarded a certificate from KVCH, recognising your accomplishment as a data scientist.

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Assignments

There is a quiz at the end of each lesson that must be completed before the next lesson begins to test your understanding.

Sample Certificate

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API Testing Course Certification

Earn your certificate

On successful completion of the training, you are awarded with a Certificate in API Testing Course. The certificate is recognised by top companies and helps in career growth.

KVCH API Testing Course Certificate holders work at various companies like (TCS, Accenture, Infosys) etc.

Share your achievement

Once you get your certificate, you can share it on your online profiles like LinkedIn. Sharing your certification with your connections will help you acquire your dream job.

Testimonials & Reviews

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Deepak Mandal (Python Certification Training)
Tuesday Dec 5, 2023

KVCH's Python Certification Training courses have been a game-changer for me. The learning experience is top-notch, offering a good balance of theory and hands-on practice. The instructors are fantastic, explaining complex concepts clearly and engagingly. The course structure is well-designed, making it easy for students to grasp Python programming.

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JAY PRAKASH THAKUR (Software Testing Training)
Thursday, Sep 7, 2023

So, I finished the software testing thing at KVCH, and man, I am really really happy ya know? Like, seriously. The teachers there, they aree like pros or something. They teach you all this testing stuff, and it is not boring theory, it is like real things you do in a job.And they are patient too, even with my silly questions. The people who work there are nice too, they helped me find my way when I got lost on the first day. Now, I'm feeling like I could actually do this testing job. Like, for real. The stuff I learned is already helping me when I talk about things in interviews. So, yeah, if you wanna do software testing and not be bored to death, go to KVCH. Super recommended!

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Sachin Pal (Python Certification Training)
Thursday Nov 16, 2023

My experience with KVCH was quite well and I have learned a lot .. Equal attention was given to every individual which is the best part of KVCH and faculties.. So I would suggest if you're really interested in law you should try KVCH.. It helps u overcome your fears and helps you, In achieving your goals..

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Anurag kumar (Software Testing Training)
Tuesday Dec 5, 2023

KVCH's Python Certification Training courses have been a game-changer for me. The learning experience is top-notch, offering a good balance of theory and hands-on practice. The instructors are fantastic, explaining complex concepts clearly and engagingly. The course structure is well-designed, making it easy for students to grasp Python programming.

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Sandeep Kashyap (Machine Learning Training)
Friday, July 7, 2023

I did the machine learning course for two months. It was very helpful and the hours are flexible so it is great place for anyone who is looking to learn new skills even if you have a busy schedule.

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Shruti Mahendru (Digital Marketing Training)
Friday, Sep 8, 2023

I have enrolled for digital marketing master course and guys seriously I love the course, trainer is very experienced and i got paid internship after course completion. Must recommend best digital marketing institute in Noida.

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Shivam Chauhan (Java Training)
Monday, Aug 7, 2023

My 6-week Java internship at KVCH Noida was truly exceptional. The institute's commitment to providing hands-on learning and real-world projects allowed me to dive deep into Java programming. The mentors were incredibly supportive, always ready to guide and share their expertise. I am grateful for the valuable skills and knowledge I gained during my time here. Thank you, KVCH Noida, for a rewarding and transformative experience! 🙏📚"

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vishesh shukla (Java Training)
Friday, April 7, 2023

I have pursued the course of Complete Java from the institute. The Teaching staff and the management staff is such a great person. They help with every problems during the course and even after the completion of the course. The trainer is such a knowledge full skilled working industrialist having a great knowledge. Aalways helpful and great trainer too.

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Saumya Trivedi (6 Months Java Training)
Wednesday, Dec 7, 2022

I have pursued the course of Complete Java from the institute. The Teaching staff and the management staff is such a great person. They help with every problems during the course and even after the completion of the course. The trainer is such a knowledge full skilled working industrialist having a great knowledge. Aalways helpful and great trainer too.

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Amar Sagar Rawat (Digital Marketing Training)
Wednesday, Dec 7, 2022

I did my digital marketing training under the guidance of Mr.Ajay Sharma Sir. Thanks to him, he has in-depth knowledge and he has good experience in this field. I will recommend his classes. My overall experience till now has been very good with KVCH Noida.

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Sweta Padma Prusty (Web Development Training)
Friday, Dec 9, 2022

Just completed my 6 weeks training in Web Development using Python under the guidance of Saurabh Sir. The course was well structured and helped me build better concepts. My counselor - Aarti Ma'am was also very helpful right from the beginning till the end. Had a great time learning.

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Kissu Malakar (Android Training)
Friday, Dec 7, 2018

It was really a good experience with kvch. I have done the Android training from here and our instructor ( Ginni mam) was very helpful and friendly when ever we needed help regarding any query she was there to help us.

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Sumit Vaishanv (Digital Marketing Training)
Wednesday, Dec 7, 2022

Thank you so much KVCH today I have done my complete digital marketing training. I am so happy because you have best trainer of digital marketing & really your trainer have brilliant to industrial industry expert and thank you so much my trainer Ajay sir to provide me best training. now I would like say everyone which want to like make career in digital marketing then you should also join KVCH Because KVCH Training company is the best option for you. He provides best training with 100% placement. now thanks again KVCH for Digital marketing training.

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Himanshu Sharma (Data Science Training)
Wednesday, Dec 8, 2021

I just completed my Data Science training course from KVCH. It was a money well-spent experience. My trainer was Mr. Rohan. He was a very patient and skilled mentor. Always taught the topics in simple terms and made sure everyone understood. The course content provided to the students was very helpful. Thank you KVCH for this.

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sharmila sheoran (6 Weeks Industrial Training)
Saturday, Oct 8, 2022

Thank you kvch for providing me great learning, I have completed my 6 weeks industrial training under the guidance of saurabh sir. The course was well structured and help me to build better concepts. My teacher and counselor - Saurabh Srivastava Sir and Aarti mam both were very helpful and kind.

frequently asked questions

What is API testing, and why is it important?

API testing involves verifying that an Application Programming Interface (API) performs as expected in terms of functionality, reliability, security, and performance. It is important because APIs serve as the backbone of software interactions, enabling seamless communication between different systems. Proper API testing ensures data integrity and enhances the end-user experience by identifying bugs early in the development cycle.

What are the prerequisites to learning API testing?

Prerequisites include:

  • Basic knowledge of programming concepts (e.g., Java, Python).
  • Understanding of HTTP protocols, request methods (GET, POST, etc.), and responses.
  • Familiarity with JSON and XML data formats.
  • Basic knowledge of software testing principles.
Which tools are commonly used for API testing, and how do they differ?

Popular tools include:

  • Postman: Best for manual testing with an easy-to-use interface.
  • SoapUI: Ideal for both REST and SOAP API testing.
  • JMeter: Focuses on performance testing for APIs.
  • Swagger: Used for API documentation and testing.

Each tool has unique features, such as automation capabilities, support for scripting, and performance testing.

What are the key differences between manual and automated API testing?
  • Manual Testing: Performed by testers, suitable for exploratory testing, and is time-consuming.
  • Automated Testing: Uses scripts to test APIs, faster and more reliable for repetitive tasks, and integrates with CI/CD pipelines.
How can I test RESTful APIs and SOAP APIs?
  • RESTful APIs: Use tools like Postman to send HTTP requests (GET, POST, PUT, DELETE) and validate responses in JSON or XML format.
  • SOAP APIs: Use tools like SoapUI to send requests and validate the responses based on WSDL and XML.
What are the best practices for writing effective API test cases?
  • Clearly define input parameters and expected outcomes.
  • Test edge cases, error handling, and boundary conditions.
  • Validate response codes (e.g., 200, 400, 401, 500).
  • Ensure performance and security aspects are covered.
  • Use meaningful test data.
How do you handle API authentication and authorization in tests?
  • Use authentication mechanisms like OAuth, API keys, JWT, or basic authentication.
  • Configure tools (e.g., Postman or Swagger) to include tokens or credentials in headers.
  • Test expired tokens, invalid credentials, and unauthorized access scenarios.
What are some common challenges faced in API testing, and how can they be overcome?
  • Challenge: Lack of proper API documentation. Solution: Use tools like Swagger or contact developers.
  • Challenge: Dynamic data handling. Solution: Use test scripts and parameterization.
  • Challenge: Complex authentication. Solution: Automate token generation or renewal.
How does API testing integrate into a CI/CD pipeline?

API tests are automated and executed during the build and deployment stages of a CI/CD pipeline. Tools like Jenkins, GitLab CI/CD, or Azure DevOps can trigger API tests after each code change, ensuring no bugs are introduced during development.

Are there any certifications or advanced courses available after completing this API Testing course?
  • Certified API Tester by ISTQB.
  • Advanced courses in performance testing, test automation frameworks, or DevOps can further enhance your skills.
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