Spring MVC @PathVariable List Input javax max Size validation

Question

Spring Boot- Spring MVC Project below Rest API

@GetMapping(value = "bulk/{speakerIds}")
@ResponseStatus(HttpStatus.MULTI_STATUS)
@Operation(summary = "Gets Speakers to a max Limit of 10")
public Map<Long, Object> getMasterClassBulk(@PathVariable List<Long> speakerIds) {

    return speakerHandler.getSpeakers(speakerIds);

}

Is there a way to add List Max Size validation ? Eg: When the input list exceeds size 10, throw 404-Bad Request

Tried below code, but it does not work.

@PathVariable @Size(max=10) List<Long> speakerIds

without validation it works??.how:: /bulk/[1,2,3] ?? (urlencoded: /bulk/%5B1%2C2%2C3%5D ;) — xerx593
– xerx593, Commented May 2, 2021 at 16:27
The count of path variables cannot be variable!(...) ...use parameters/body instead! ;) — xerx593
– xerx593, Commented May 2, 2021 at 16:35

marc-gil · Accepted Answer · 2021-05-03 21:39:39Z

1

Try anotating the class with @Validated and try this on method argument:

@Valid @PathVariable @Size(max=10) List<Long> speakerIds

answered May 3, 2021 at 21:39

marc-gil

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Bishal Gautam · Accepted Answer · 2021-05-02 19:01:13Z

0

Is there a way to add List Max Size validation ? Eg: When the input list exceeds size 10, throw 404-Bad Request

If this is your question than you can simplify it by using

public Map<Long, Object> getMasterClassBulk(@PathVariable List<Long> speakerIds) {
    
    if(speakerIds.size()>10)
      throw new BadRequestException("Length too long");

    return speakerHandler.getSpeakers(speakerIds);

}

Create BadRequestException class like this:

@ResponseStatus(HttpStatus.BAD_REQUEST)  
public class BadRequestException extends RuntimeException   
{  
public BadRequestException(String message)   
{  
super(message);  
}  
}

answered May 2, 2021 at 19:01

Bishal Gautam

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