CODEWITHSUNDEEP
springspring-bootspring-hateoasspring-cloud-sleuth
HughWPHamill
HughWPHamill

Reputation: 58

How to fill Spring Cloud Sleuth Trace ID into logRef field of VndError in spring-hateoas?

I have a @ControllerAdvice which is returning VndError from spring-hateoas. VndError specifies a logRef field which is where I should be putting the Trace ID from Spring Cloud Sleuth. Is there an official way to do this, or should I just retrieve it from the MDC directly in my @ControllerAdvice @ExceptionHandler method?

Example Controller Advice:

@ControllerAdvice
class ExceptionHandler {

    @Autowired
    private lateinit var tracer: Tracer

    @ExceptionHandler(LocalException::class)
    fun handleLocalException(e: LocalException): ResponseEntity<VndErrors.VndError> {
        val traceId = MDC.get("X-B3-TraceId") // <-- Is this the correct way of getting trace id from Sleuth?
        val traceId2 = tracer.currentSpan().context().traceIdString() // <-- Or something like this?
        val error = VndErrors.VndError(traceId, e.message)

        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(error)
    }
}

GitHub Example: https://github.com/hughwphamill/spring-traceid-logref

Upvotes: 0

Views: 1614

Answers (1)

Marcin Grzejszczak
Marcin Grzejszczak

Reputation: 11189

In the documentation we've described how to access the tracing context. To get the trace id via the tracer interface.

Upvotes: 1

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