Documentation
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Overview ¶
Package opentracer provides a wrapper on top of the Datadog tracer that can be used with Opentracing. It also provides a set of opentracing.StartSpanOption that are specific to Datadog's APM product. To use it, simply call "New".
Note that there are currently some small incompatibilities between the Opentracing spec and the Datadog APM product, which we are in the process of addressing on the long term. When using Datadog, the Opentracing operation name is what is called resource in Datadog's terms and the Opentracing "component" tag is Datadog's operation name. Meaning that in order to define (in Opentracing terms) a span that has the operation name "/user/profile" and the component "http.request", one would do:
opentracing.StartSpan("http.request", opentracer.ResourceName("/user/profile"))
Some libraries and frameworks are supported out-of-the-box by using our integrations. You can see a list of supported integrations here: https://godoc.org/gopkg.in/DataDog/dd-trace-go.v1/contrib. They are fully compatible with the Opentracing implementation.
Example ¶
package main
import (
opentracing "github.com/opentracing/opentracing-go"
"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/opentracer"
"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
)
func main() {
// Start a Datadog tracer, optionally providing a set of options,
// returning an opentracing.Tracer which wraps it.
t := opentracer.New(tracer.WithAgentAddr("host:port"))
// Use it with the Opentracing API. The (already started) Datadog tracer
// may be used in parallel with the Opentracing API if desired.
opentracing.SetGlobalTracer(t)
}
Output:
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func New ¶
func New(opts ...tracer.StartOption) opentracing.Tracer
New creates, instantiates and returns an Opentracing compatible version of the Datadog tracer using the provided set of options.
func ResourceName ¶
func ResourceName(name string) opentracing.StartSpanOption
ResourceName can be used with opentracing.StartSpan to set the resource name of a span.
func ServiceName ¶
func ServiceName(name string) opentracing.StartSpanOption
ServiceName can be used with opentracing.StartSpan to set the service name of a span.
func SpanType ¶
func SpanType(name string) opentracing.StartSpanOption
SpanType can be used with opentracing.StartSpan to set the type of a span.
Types ¶
This section is empty.
Source Files