mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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452256cbf4
* Consolidate stdout exporter * Move config to own file and match project standard * Abstract Exporter into unified struct * Rename trace part of the exporter * Update import paths and configuration * Update tests * Update InstallNewPipeline to not return traceProvider It is a registered global, access it that way. * Update example_test * Update docs * Update example to be for whole package * Update metric output Closer match the span output. * Clean up span output Print as a batch and cleanup marshaling. * Correct spelling error in doc * Add Exporters README * Update Changelog * Propagate changes to rest of project * Lint fixes * Fix example test in metric SDK * Add disable config options for trace and metric Co-authored-by: Liz Fong-Jones <lizf@honeycomb.io> |
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| .. | ||
| basic | ||
| grpc | ||
| http | ||
| jaeger | ||
| namedtracer | ||
| otel-collector | ||
| prometheus | ||
| zipkin | ||
| 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.