Unable to convert pathvariable to object

I want to have an object as a path variable but I get the below exception when testing. How can I fix this

@Validated
@RestController
@RequestMapping("/test/api")
public class MyRestController {

    @GetMapping("/data/{id}")
    public Data getData(@PathVariable @Valid IdData id) {
        return new Data();
    }
}

@Data
public class IdData {

    private Integer id;

    public IdData(Integer id) {
        this.id = id;
    }

}

Exception:

org.springframework.web.method.annotation.MethodArgumentConversionNotSupportedException: Failed to convert value of type 'java.lang.String' to required type 'com.test.IdData'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'java.lang.String' to required type 'com.test.IdData': no matching editors or conversion strategy found

Solution 1:

From "/data/{id}" you will get an id which is an integer but the method parameter is trying to get IdData value which is incompatible.

@Validated
@RestController
@RequestMapping("/test/api")
public class MyRestController {

    @GetMapping("/data/{id}")
    public Data getData(@Valid @PathVariable int id) {
        return new Data();
    }
}

Output:-

{
   "repository": {
      "metricName": "spring.data.repository.invocations",
      "autotime": {
         "enabled": true,
         "percentilesHistogram": false,
         "percentiles": null
      }
   }
}