13 September 2025

#RestAssured

#RestAssured

Key Concepts


S.No Topic Sub-Topics
1 Introduction to RestAssured What is RestAssured?, Features, Benefits, Use cases, API testing overview
2 Setting Up RestAssured Maven project setup, Gradle setup, Dependency inclusion, IDE setup, Environment configuration
3 HTTP Methods GET, POST, PUT, DELETE, PATCH
4 Basic Request Structure Given, When, Then, Headers, Query parameters
5 Request Headers & Params Content-Type, Authorization, Query parameters, Path parameters, Form parameters
6 Request Body JSON payload, XML payload, POJO mapping, Multi-part requests, Dynamic data
7 Response Validation Status code validation, Response body validation, Headers validation, JSON schema validation, Extracting values
8 Matchers in RestAssured Hamcrest matchers, EqualTo, ContainsString, GreaterThan, Collection matchers
9 Path & JSON Parsing JsonPath, XMLPath, Extract response data, Nested objects, Arrays handling
10 Authentication Basic auth, Digest auth, OAuth 1.0, OAuth 2.0, API key
11 Logging Requests & Responses Log all, Log headers, Log body, Conditional logging, Debugging
12 Query & Path Parameters Simple parameters, Multiple parameters, Dynamic parameters, Encoding, Validation
13 Form & Multi-part Data Form parameters, File upload, Multi-part requests, Content type, Validation
14 Response Extraction Extract as String, Extract as JSON, Extract as XML, Headers, Cookies
15 BDD Style Testing Given-When-Then, Request specification, Response specification, Assertions, Examples
16 Request & Response Specification Reusable request spec, Reusable response spec, Base URI setup, Base path, Logging
17 Serialization & Deserialization POJO mapping, JSON to POJO, XML to POJO, Using Gson, Using Jackson
18 Headers & Cookies Handling Setting headers, Extracting headers, Cookies management, Validation, Security headers
19 Chaining Requests Multiple requests, Response to next request, Reusable specs, Dependency handling, Session management
20 Dynamic Data & Parameterization Data-driven testing, External files, JSON files, Excel files, Random data
21 Integration with TestNG Annotations, Before/After methods, DataProvider, Assertions, Reporting
22 Integration with JUnit Setup, Annotations, Assertions, Running tests, Reporting
23 Exception Handling Handling failures, Try-catch blocks, Logging errors, Validation failures, Debugging
24 Logging & Reporting Request logs, Response logs, TestNG reports, Extent reports, Custom logging
25 Mocking & Stubbing WireMock, Mock server, Stub response, Simulate API, Testing edge cases
26 API Versioning & Environment Base URI, Base path, Environment variables, Multiple environments, Switching environments
27 Advanced JSON Handling Nested JSON, Arrays, JSONPath expressions, Validation, Dynamic parsing
28 Advanced XML Handling XPath, Namespaces, Attributes, Node validation, Extracting values
29 Hands-on Projects CRUD API automation, E-commerce API testing, Authentication API testing, Data-driven API tests, Logging & reporting
30 Best Practices & Career Path Code organization, Reusable specs, Parameterization, CI/CD integration, Career opportunities

Interview question

Basic Level

  1. What is RestAssured?
  2. Why do we use RestAssured for API automation?
  3. How do you add RestAssured dependency in Maven?
  4. What is the baseURI in RestAssured?
  5. What is the difference between baseURI and basePath?
  6. How do you send a GET request using RestAssured?
  7. How do you validate a status code in RestAssured?
  8. What is the use of .then() in RestAssured?
  9. What is the syntax to log request response?
  10. How do you add query parameters?
  11. How do you add path parameters?
  12. How do you add headers in RestAssured?
  13. How do you validate response body fields?
  14. What is JSONPath?
  15. How do you parse JSON response in RestAssured?
  16. How do you perform POST API testing?
  17. What is the purpose of given(), when(), then() ?
  18. What is Response object in RestAssured?
  19. How do you extract value from Response?
  20. What is contentType() used for?
  21. How do you send a DELETE request?
  22. How do you check if a response body contains a string?
  23. How do you get response time?
  24. What is Hamcrest matcher?
  25. What are the main HTTP methods supported in RestAssured?

Intermediate Level

  1. Difference between request parameters and query parameters.
  2. How to send form parameters in RestAssured?
  3. How do you reuse request specifications across tests?
  4. What is RequestSpecBuilder?
  5. What is ResponseSpecBuilder?
  6. How do you validate multiple fields in response?
  7. How do you assert JSON arrays?
  8. How do you extract nested JSON values?
  9. How do you work with XML response in RestAssured?
  10. How to validate XPath in RestAssured?
  11. How do you upload a file using RestAssured?
  12. How do you download a file using RestAssured?
  13. How do you pass cookies in a request?
  14. What are filters in RestAssured?
  15. How do you log only if validation fails?
  16. How to generate reports for RestAssured tests?
  17. How do you integrate RestAssured with TestNG?
  18. How do you integrate RestAssured with JUnit?
  19. How do you handle SSL certificates?
  20. How do you validate error responses in RestAssured?
  21. How do you send XML payload in POST?
  22. How do you extract a list of values using JSONPath?
  23. How to parameterize API tests using TestNG?
  24. What is the use of relaxedHTTPSValidation()?
  25. What is authentication in APIs?
  26. How do you implement basic authentication?
  27. How do you pass bearer tokens?
  28. How do you test pagination APIs?
  29. How do you validate response headers?
  30. How do you send multipart data?
  31. How do you handle redirects in RestAssured?
  32. What is extract().path()?
  33. What is extract().jsonPath()?
  34. How do you perform PATCH request?
  35. How do you chain API requests?

Advanced Level

  1. What is OAuth2 in RestAssured?
  2. How do you implement OAuth2 token generation?
  3. How to create a custom filter in RestAssured?
  4. How do you implement request/response logging filters?
  5. How do you build a framework using RestAssured?
  6. How do you use POJO classes in serialization?
  7. What is deserialization? How is it used?
  8. How do you use ObjectMapper with RestAssured?
  9. How to validate JSON Schema?
  10. How to validate XML schema?
  11. How do you compare two JSON responses?
  12. How do you mock an API for testing?
  13. How do you handle dynamic JSON response?
  14. How do you handle dynamic tokens/session IDs?
  15. How do you generate random payloads?
  16. How to build reusable utility classes in RestAssured?
  17. How do you retry failed API calls?
  18. How do you set global configuration for RestAssured?
  19. What is a custom exception class in API testing?
  20. How do you validate collections using Hamcrest?
  21. How do you implement data-driven API tests using Excel/CSV?
  22. How do you perform parallel execution of API tests?
  23. What is the difference between BDD and non-BDD approach?
  24. How do you extract raw response?
  25. How do you integrate RestAssured with Jenkins?

Expert Level

  1. How do you design a scalable REST API automation framework?
  2. How do you integrate RestAssured with Cucumber BDD?
  3. How do you build a full API automation CI/CD pipeline?
  4. How do you build custom matchers in RestAssured?
  5. How do you mock high-volume APIs with WireMock?
  6. How do you performance test APIs with RestAssured + JMeter/Gatling?
  7. How do you secure automation frameworks with secrets management?
  8. How do you set up API testing for microservices architecture?
  9. How do you implement contract testing?
  10. How do you test GraphQL APIs using RestAssured?
  11. How to automate SOAP services using RestAssured?
  12. How do you perform schema versioning in large API systems?
  13. How do you validate logs and audit trails through RestAssured?
  14. How do you integrate RestAssured with Docker-based pipelines?
  15. Explain your end-to-end approach to enterprise-level API automation.

Related Topics


-
Labels: , ,