Go agent v3.4.0

3.4.0

New Features

• Attribute http.statusCode has been added to external span events representing the status code on an http response. This attribute will be included when added to an ExternalSegment in one of these three ways:

  1. Using NewRoundTripper with your http.Client
  2. Including the http.Response as a field on your ExternalSegment
  3. Using the new ExternalSegment.SetStatusCode API to set the status code directly

  To exclude the http.statusCode attribute from span events, update your agent configuration like so, where cfg is your newrelic.Config object.

  cfg.SpanEvents.Attributes.Exclude = append(cfg.SpanEvents.Attributes.Exclude, newrelic.SpanAttributeHTTPStatusCode)

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• Error attributes error.class and error.message are now included on the span event in which the error was noticed, or on the root span if an error occurs in a transaction with no segments (no chid spans). Only the most recent error information is added to the attributes; prior errors on the same span are overwritten.

  To exclude the error.class and/or error.message attributes from span events, update your agent configuration like so, where cfg is your newrelic.Config object.

  cfg.SpanEvents.Attributes.Exclude = append(cfg.SpanEvents.Attributes.Exclude, newrelic.newrelic.SpanAttributeErrorClass, newrelic.SpanAttributeErrorMessage)

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Changes

• Use Context.FullPath() for transaction names when using Gin version 1.5.0 or greater. Gin transactions were formerly named after the Context.HandlerName(), which uses reflection. This change improves transaction naming and reduces overhead. Please note that because your transaction names will change, you may have to update any related dashboards and alerts to match the new name.

  // Transactions previously named
  "GET main.handleGetUsers"
  // will be change to something like this match the full path
  "GET /user/:id"

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