Postman Masterclass and REST API Testing

REST API enables client–server communication, data exchange in JSON, and shows how URL and query parameters, headers, cookies, and status shape requests and responses.

Master core rest api methods including get, post, delete, put, and batch (patch), using query parameters and request bodies to interact with plural endpoints like products and their ids.

Explore server-side behavior when sending requests from Postman by booting a small Node.js project: download the project zip from GitHub, install dependencies, and run the dev server.

Use Postman variables to fix repeating request domains by applying global, collection, environment, data, and local scopes. Understand variable precedence and implement these variables across collections and environments.

Use dynamic variables in Postman to replace hardcoded credentials with random usernames and passwords, generating data like timestamps and Mac addresses for both body requests and tests.

Learn how to authorize with a username and password in Postman using basic auth, send credentials in the request headers, and decode the token to verify server-side handling.

Use postman as a proxy server to capture browser requests, save into history or a collection, filter by url, and view cookies, with macOS and Windows setup.

Discover how to manage environments in api testing, including dev, stage, and production endpoints, authentication, tokens, and logging differences.

Start a node server in three environments—dev, stage, and broad—by using environment files and npm scripts, then run three servers on ports 3000, 3001, and 3002.

Learn to use Postman mock servers to simulate dev API endpoints from an open api spec, auto-generating collections and mock endpoints to accelerate frontend-backend collaboration.

Send requests to the mock server with the e-commerce collection in Postman, verify the base URL, and observe a 200 user added response while learning to simulate a 400 error.

Learn to match a request body to exact examples in Postman by using the header x-match-request-body, differentiate missing password or username, and validate responses for REST API testing.

Learn how to add examples and name matching in Postman mock responses at the product endpoint, use dynamic values, and control responses with X Mock Response Code headers.

Validate the response body after creating a user by asserting a 201 status and that the response includes the username and a non-null id via JSON parsing.

Master Postman performance testing for api by writing tests to measure response times in milliseconds, set thresholds, and compare local versus production server timings.

Write three api tests in postman to verify new orders: status code, response body, and structure. Use json handling, logs, and runners to execute sequential tests across api calls.

Explore the Postman collection runner and learn to clean and organize your workspace by creating a Node.js commerce collection with orders, product, and login folders.

Learn to use Postman collection runners to automate end-to-end API tests, organizing requests into folders, sequencing login, user creation, and product creation, and passing authentication tokens between requests.

Explore JavaScript basics for API testing: declare variables with var, let, and const; print with console.log; define functions with function and arrow syntax; hoisting, parameters, and postman console usage.

Learn to create arrays and objects in Postman, access values with dot or bracket notation, and handle nested objects, date objects, undefined, and null values for testing.

Master array manipulation in JavaScript for Postman API tests, using push, pop, and splice to modify arrays; leverage find, index, includes, and map to validate responses.

Explore versioning in Postman by mapping API documentation to repositories, navigate GitHub, Bitbucket, and GitLab options, manage collections, runners, and test cases, and streamline collaboration for the Postman API spec.