Question 1: What are the common HTTP methods used in API testing?
Answer:
The most commonly used HTTP methods in API testing are:
| Method | Purpose | Example Endpoint |
| GET | Fetch data | /users/123 |
| POST | Create a new resource | /users |
| PUT | Update an entire resource | /users/123 |
| PATCH | Update part of a resource | /users/123 |
| DELETE | Delete a specific resource | /users/123 |
These methods form the basis of RESTful API architecture. In automation tools like Postman and Rest Assured, these verbs are used to perform and validate requests.
Question 2: What are the common status codes to validate during API testing?
Answer:
HTTP status codes indicate the result of the client-server interaction. Some essential status codes for testers include:
| Code | Meaning | Use Case |
| 200 | OK | Successful GET/PUT |
| 201 | Created | Successful POST |
| 204 | No Content | Successful DELETE |
| 400 | Bad Request | Invalid input |
| 401 | Unauthorized | Missing token |
| 403 | Forbidden | No permission |
| 404 | Not Found | Resource doesn’t exist |
| 409 | Conflict | Duplicate data issue |
| 500 | Internal Server Error | Server-side error |
Proper status code validation ensures that the API behaves correctly under various conditions.
👉The Next Questions-2: API TESTING
