SpringBoot accessing params inside method

CR Sardar 0
Viewed 53

New to Spring/SpringBoot, I have two methods like bellow -

1.

@GetMapping("/score")
public UserScoreRes getUserScore(@RequestHeader("api-key") String apiKey,
                                @RequestHeader("jwt") String jwt,
                                @RequestParam(name = "date", defaultValue = "2022-07-15") String dateStr) {

.....
}

@GetMapping(value = "/score", params ="behaviour-version=2")
public UserScoreResV2 getUserScoreV2(@RequestHeader("api-key") String apiKey,
                                    @RequestHeader("jwt") String jwt,
                                    @RequestParam(name = "date", defaultValue = "2022-07-15") String dateStr) {

....
}

In method 2 (getUserScoreV2), how can I get behaviour-version inside the method?

Tried with -

@GetMapping(value = "/score", params ="behaviour-version=2")
public UserScoreResV2 getUserScoreV2(@RequestHeader("api-key") String apiKey,
                                    @RequestHeader("jwt") String jwt,
                                    @RequestParam(name = "behaviour-version", required = false) String behaviourVersion,
                                    @RequestParam(name = "date", defaultValue = "2022-07-15") String dateStr) {

....
}

but, it is not working.

Can not modify method 1 (getUserScore) because a version is released in production with that.

spring-rest spring-mvc spring spring-boot
2 Answers

try this

@GetMapping(value = "/score", params ="behaviour-version=2")
public UserScoreResV2 getUserScoreV2(@RequestHeader("api-key") String apiKey,
                             @RequestHeader("jwt") String jwt,
                             @RequestParam(name = "date", defaultValue = "2022-07-15") String dateStr,
                             ServletRequest request) {
    String behaviorVersion = request.getParameter("behaviour-version");
}

warning

As Deinum mentioned, behavior-version should be 2.
Otherwise, you can't send request. The server will return 400 error

chosling0

You can do this using handler interceptor. What you have to do is when application recieve a request for /score endpoint with behaviour_version header or param you have to redirect that to the another endpoint through preHandler (ex: /score/v2 ).

Then caller can send request for same endpoint with additional header/param. Redirecting according to header do by springboot interceptor.

Ex handler inteceptor:

public class ScoreInterceptor extends HandlerInterceptorAdapter {

    @Override
        public boolean preHandle(HttpServletRequest request,
                HttpServletResponse response, Object handler) throws Exception {
    
         if(request.getParameter(behaviour_v)=="2"){
         response.redirect('/score/v1');
         return false;
    }
         return true;
    }
}
YJR0
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