Playwright with Python #29 - POST API Requests | Create Users & Validate Responses
Building on our previous lesson about GET requests, this video tutorial guides you through creating users using Playwright with Python. You'll learn to send JSON payloads and handle responses effectively, essential skills for any QA engineer. This demonstration focuses on POST requests for data creation, a key aspect of automation testing and robust software testing practices.
Whether you're a beginner or leveling up your automation testing career, this step-by-step walkthrough shows you how to automate real-world user creation APIs and verify your data end-to-end using Playwright with Python.
📌 KEY TOPICS COVERED:
How POST requests differ from GET requests in API automation
Setting up authentication tokens and headers in Playwright Python
Structuring JSON payloads for user creation APIs
Sending POST requests with URL, payload, and headers
Understanding HTTP status code 201 (Created) vs 200 (OK)
Asserting response status codes and validating they fail correctly
Extracting and parsing JSON responses
Verifying response data matches the payload you sent (name, email, ID)
Debugging failed assertions live
What's coming next: dynamic test data and data-driven testing
⏱️ TIMESTAMPS:
00:00 Introduction & what you'll learn
00:47 Signing up & getting your authentication token
01:04 Exploring the Create User POST API endpoint
01:30 Understanding the request body (name, email, gender, status)
01:49 HTTP 201 response — what "Created" means
02:17 Setting up the test file in PyCharm
02:50 Copying and adapting GET request code for POST
03:42 Building the JSON payload in Python
05:03 Defining headers with authorization token
06:09 Sending the POST request with URL, data, and headers
07:23 Adding status code assertions (201 vs 200)
08:42 Running the test — watching assertions fail and pass
10:20 Extracting and printing the JSON response
11:14 Asserting name, email match the payload
12:35 Asserting the response contains an ID field
13:26 Debugging a failing assertion live
14:11 Summary & what's coming in the next tutorials
📢 Ready to level up your QA career?
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💬 Comment below: What API topic do you want next?
Learning automation testing is one of the best investments you can make in your QA career. Each episode builds on the last — don't miss what's coming next!
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🚀 WHAT YOU'LL LEARN ON THIS CHANNEL
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✅ Performance Testing with JMeter
✅ Java & Python for Testers
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