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Guides
  1. HERE Traffic API v7 Developer Guide
  2. Introduction to HERE Traffic API v7

Request tracing

X-Request-ID

You can tag your requests with a request identifier using the non-standard HTTP header X-Request-Id. The service will forward this value to the response regardless of whether it is a success or a failure.

While you can use any string as the request identifier, HERE recommends using a UUID to uniquely identify your requests or groups of requests.

X-Correlation-Id

In addition to the X-Request-Id http header, the service response will also carry a X-Correlation-Id http header. This is an auto-generated identifier that is unique to every request.

Request tracing use cases

The following are request tracing use cases:

  • You can provide either the X-Request-Id or X-Correlation-Id when filing a bug or posting a question about a specific request to our support service.
  • A group of correlated requests could be tagged with the same X-Request-Id to identify the correlation.
  • If you have your own request tracing identifier, you can pass this value as the X-Request-Id to continue the tracing through our service.

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