What is Filter interface in Rest Assured Api.. it is used to pass the params in the request? - bdd

Question

Can someone provide me example for Filter Interface in REST-assured and found this one only.link

Answer 1

From the api docs:
A filter allows you to inspect and alter a request before it's
actually committed and also inspect and alter the response before it's
returned to the expectations. You can regard it as an "around advice"
in AOP terms. Filters can be used to implement custom authentication
schemes, session management, logging etc.
Actually, it is used to extract/log the data from request/response.
Some built-in filters:
RequestLoggingFilter
ResponseLoggingFilter
CookieFilter
...
You can register filters as static settings, for example:
RestAssured.filters(new RequestLoggingFilter(), new ResponseLoggingFilter());
Then every request you will get the log in console like this.
Request:
Request method: GET
Request URI: http://localhost:8000/req2
Proxy: <none>
Request params: <none>
Query params: <none>
Form params: <none>
Path params: <none>
Headers: Accept=*/*
Cookies: <none>
Multiparts: <none>
Body: <none>
Response:
HTTP/1.1 200 OK
X-Powered-By: Express
Access-Control-Allow-Origin: *
Content-Type: application/json
Date: Fri, 22 Oct 2021 13:59:35 GMT
Connection: keep-alive
Keep-Alive: timeout=5
Content-Length: 110
{
"userId": 1,
"id": 5,
"title": "nesciunt quas odio",
"body": "repudiandae veniam quaerat sunt sed"
}
A custom sample for Filter can be mentioned is allure-rest-assured, or simple one like this https://stackoverflow.com/a/68323940/7574461