How can I make a Jmeter HTTP request with an Enum as Request Parameter?

Question

I have a Spring Controller with this signature

public ResponseEntity<blabla> find(@RequestParam Long id, @RequestParam Long version, @RequestParam CheckedItemType type)

I am trying to make an http request with Jmeter setting the third parameter as: type=0 text/plain and I get a 400 error code cause the controller can't cast a String to CheckedItemType.

Any idea about how I can solve this?

Answer 1

Here, is an example:

public enum Modes {
    ALPHA, BETA;
}

String to enum Converter:

public class StringToEnumConverter implements Converter<String, Modes> {

    @Override
    public Modes convert(String from) {
        return Modes.valueOf(from);
    }
}

Aregister our Converter:

@Configuration
public class WebConfig implements WebMvcConfigurer {


  @Override
  public void addFormatters(FormatterRegistry registry) {
       registry.addConverter(new StringToEnumConverter());
  }
}