go/opentelemetry-go
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opentelemetry-go/example
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Tyler Yahn 8fbaa9d432
Make the SDK into its own Go module (#985) 
* Remove otel/sdk dependency from grpctrace

Use otel/trace/testtrace instead and cleanup testing code.

* Update httptrace to not depend on the SDK

Update testing to use api/trace/testtrace instead.

* Add changes to Changelog

* Make the SDK its own Go module

* Upgrade go.mod to 1.14 project wide

* go mod tidy
2020-07-29 15:54:26 -07:00
..
basic Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
grpc Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
http Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
jaeger Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
namedtracer Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
otel-collector Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
prometheus Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
zipkin Make the SDK into its own Go module (#985) 2020-07-29 15:54:26 -07:00
README.md Split OTLP README to own directory 2020-06-01 13:27:23 -05:00

README.md

Example

HTTP

This is a simple example that demonstrates tracing http request from client to server. The example shows key aspects of tracing such as:

  • Root Span (on Client)
  • Child Span (on Client)
  • Child Span from a Remote Parent (on Server)
  • SpanContext Propagation (from Client to Server)
  • Span Events
  • Span Attributes

Example uses

  • open-telemetry SDK as trace instrumentation provider,
  • httptrace plugin to facilitate tracing http request on client and server
  • http trace_context propagation to propagate SpanContext on the wire.
  • stdout exporter to print information about spans in the terminal

How to run?

Prequisites

  • go 1.13 installed
  • GOPATH is configured.

1 Download git repo

GO111MODULE="" go get -d go.opentelemetry.io/otel

2 Start Server

cd $GOPATH/src/go.opentelemetry.io/otel/example/http/
go run ./server/server.go

3 Start Client

cd $GOPATH/src/go.opentelemetry.io/otel/example/http/
go run ./client/client.go

4 Check traces in stdout

The spans should be visible in stdout in the order that they were exported.