Playwright with Python #28 – API Testing GET Requests | Auth & JSON Validation
Learn Playwright with Python API testing — send GET requests, handle Authorization headers, and validate real JSON responses using pytest and request context.
Struggling to test APIs with Playwright Python? In this tutorial you'll send your first authenticated GET request, parse the JSON response into a Python list, and write production-quality assertions — all inside a real QA workflow.
What you'll learn in this video:
✅ How to use playwright.request.new_context() to create an API session
✅ Sending a GET request with an Authorization Bearer token header
✅ Setting Accept: application/json and validating response content-type
✅ Asserting HTTP status code 200 and response.ok
✅ Converting API response to a Python list using response.json()
✅ Validating list length, first user data, field existence (id, name, email, gender, status)
✅ Checking data types with isinstance() and business rules (ID 0, gender in [male, female])
✅ Running tests with pytest -s -v -k test_get_users
These API testing skills are directly applicable to real QA engineer job responsibilities — you'll know how to automate REST API validation from scratch.
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⏱️ TIMESTAMPS
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00:00 Introduction — API testing with Playwright Python
00:29 Demo site setup — gorest.co.in sign up & auth token
00:44 Exploring GET API endpoints & Authorization headers
01:54 Creating the test file in PyCharm
02:49 Importing Playwright sync API & Playwright object
03:34 Creating request context with playwright.request.new_context()
04:49 Sending GET request with URL & Authorization Bearer token
07:21 Asserting status code 200 and response.ok
11:31 Validating Content-Type response header
13:21 Converting JSON response to Python list
14:25 Asserting list length 0 and printing users
16:19 Extracting first user & validating field existence
16:44 Checking data types with isinstance()
17:41 Business rule assertions — ID 0, gender values
20:51 Asserting specific response values & failure demo
22:05 Recap & next steps
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