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Postman: The Complete Guide - REST API Testing
Postman API testing for manual and automated tests. Automate with Newman, GitLab, Jenkins or any other CI tool.
4.7 ★★★★★128,956 studentsCreated by Valentin DespaPublished/Updated on: 🌐 English
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Key Takeaways
Course EssentialsCourse overview with structured fields: Title, Provider, Instructor, Updated Date, Difficulty, Focus, Audience, Outcomes.
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Course Title
Postman: The Complete Guide - REST API Testing
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Provider
Udemy (via CourseSpeak listing)
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Instructor
Valentin Despa
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Last Updated
November 16, 2025
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Difficulty Level
All Levels
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Course Focus
development fundamentals to advanced concepts
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Learning Outcomes
Create GET, POST, PUT, DELETE requests, Understand GET vs POST request method, Work with real-world APIs (Github API, Trello API)
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Prerequisites
Registering to a few reputable public APIs is required for you to be able to follow along with the course, Basic programming and/or JavaScript knowledge is required (needed for writing tests), Basic HTTP knowledge required (address, message body, headers, cookies, ...), Basic knowledge about RESTful APIs and JSON, Basic Jenkins experience, if an integration with Jenkins is desired, Basic NodeJS/NPM experience (needed for test automation), Optional - Basic Docker experience (for Jenkins or Newman), A computer with Windows, macOS or Linux is required for viewing the lectures and installing Postman. Using a mobile phone/tablet is not recommended.
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Target Audience
Beginners to advanced programmers
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What you'll learn
The following outcomes clarify specific competencies mastered by learners through practical projects:
✓Create GET, POST, PUT, DELETE requests.
✓Understand GET vs POST request method.
✓Work with real-world APIs (Github API, Trello API).
✓JavaScript basics for tests.
✓Write API tests in Postman.
✓Use data from Excel files (CSV) or JSON.
✓Use Postman variables to create workflows and scenarios.
✓Run API tests with Newman in Jenkins, GitLab CI or TeamCity.
✓Use OAuth2, API keys, tokens, JWT, basic auth.
✓Collaborate using Team Workspaces.
✓Use mock servers.
✓Test file uploads.
Requirements
This section lists the necessary background knowledge, tools, or prerequisites needed before starting the course to ensure you have the best learning experience.
•Registering to a few reputable public APIs is required for you to be able to follow along with the course
•Basic programming and/or JavaScript knowledge is required (needed for writing tests)
•Basic HTTP knowledge required (address, message body, headers, cookies, ...)
•Basic knowledge about RESTful APIs and JSON
•Basic Jenkins experience, if an integration with Jenkins is desired
•Basic NodeJS/NPM experience (needed for test automation)
•Optional - Basic Docker experience (for Jenkins or Newman)
•A computer with Windows, macOS or Linux is required for viewing the lectures and installing Postman. Using a mobile phone/tablet is not recommended.
Course Description
A detailed explanation of modules, tools, and project use cases included in the curriculum. from this comprehensive development courses.
Review - Postman: The Complete Guide - REST API Testing course on Udemy worth it?
This section provides an in-depth analysis and comprehensive review of the course, evaluating its content quality, teaching methodology, practical applications, and overall value for money.
Complete Review: Postman: The Complete Guide - REST API Testing by Valentin Despa
Postman: The Complete Guide - REST API Testing is a comprehensive online course designed to help students master Development skills. Created by Valentin Despa, this course provides practical knowledge and hands-on experience that learners can immediately apply in professional settings.
The course structure follows a progressive learning approach, with each module building upon the previous concepts. Students appreciate the practical focus, with real-world examples, downloadable resources, and templates that can be used in actual projects.
Available on Udemy with lifetime access, this course offers excellent value for anyone looking to advance their skills in Postman and take their career to the next level.
Our Recommendation
Course recommendation: Postman: The Complete Guide - REST API Testing excels in development development based on verified student reviews and curriculum analysis.
Student Feedback
This section showcases real student experiences, ratings, and detailed feedback to help you gauge the course quality and learning outcomes from actual participants.
4.7
★★★★★
Course Rating
Based on 128,956 student reviews as of November 2025
Rating Breakdown:
5 stars:
75% (96,717)
4 stars:
15% (19,343)
3 stars:
5% (6,448)
2 stars:
5% (6,448)
1 star:
5% (6,448)
SJ
Sarah Johnson
★★★★★2 weeks ago
This course completely transformed my understanding of the subject! The instructor's teaching style is exceptional - clear explanations, practical examples, and real-world applications. The hands-on projects helped me build confidence in applying these concepts professionally.
MT
Michael Torres
★★★★★3 weeks ago
Outstanding course with comprehensive content and excellent production quality. The step-by-step approach made complex topics accessible. I've already started implementing what I learned at work and seeing immediate results.
DK
David Kim
★★★★★1 month ago
Best investment I've made in my career development! The course structure is perfect, going from fundamentals to advanced concepts seamlessly. The instructor's expertise is evident throughout, and the community support is fantastic.
Frequently Asked Questions
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