mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-12 10:04:29 +02:00

Krzesimir Nowak a6d0f04c8d Remove leftover mentions of jaeger in http example (#238 )

Jaeger exporter was replaced with stdout exporter in the example, so
update the README to reflect that. Also drop the screenshot - it's not
referenced anywhere.

2019-10-23 09:38:00 -07:00

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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 1.12 installed
GOPATH is configured.

1 Download git repo

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

2 Start Server

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

3 Start Client

cd $GOPATH/src/go.opentelemetry.io/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.

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