Files
go-omni/examples/telemetryHeaders/main.go

63 lines
1.8 KiB
Go

// telemetryHeaders demonstrates a provider-neutral compatibility boundary for
// gateways that carry trace IDs in configurable HTTP headers.
package main
import (
"context"
"fmt"
"io"
"net/http"
"net/http/httptest"
omni "git.yuntuo.hk/k2safe/go-omni"
"git.yuntuo.hk/k2safe/go-omni/logx"
"git.yuntuo.hk/k2safe/go-omni/telemetry"
)
func main() {
if err := run(); err != nil {
panic(err)
}
}
func run() error {
propagator, err := telemetry.NewHeaderPropagator(telemetry.HeaderPropagationConfig{
TraceIDHeader: "X-Trace-Id", SpanIDHeader: "X-Span-Id", RequestIDHeader: "X-Request-Id",
})
if err != nil {
return err
}
runtime, err := telemetry.New(telemetry.Config{Service: "header-example", SampleRatio: 1, Propagator: propagator})
if err != nil {
return err
}
defer runtime.Close()
app := omni.New(omni.WithLogger(false), omni.WithRequestIDHeader("X-Request-Id"))
defer app.Close()
app.Use(runtime.Middleware())
app.GET("/", func(c *omni.Context) error {
fmt.Printf("traceId=%s requestId=%s\n", logx.TraceID(c.Context()), logx.RequestID(c.Context()))
return c.OK(map[string]string{"traceId": logx.TraceID(c.Context()), "requestId": logx.RequestID(c.Context())})
})
server := httptest.NewServer(app)
defer server.Close()
req, err := http.NewRequestWithContext(context.Background(), http.MethodGet, server.URL, nil)
if err != nil {
return err
}
req.Header.Set("X-Trace-Id", "11111111111111111111111111111111")
req.Header.Set("X-Span-Id", "2222222222222222")
req.Header.Set("X-Request-Id", "example-request")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return err
}
fmt.Printf("status=%d response=%s", resp.StatusCode, body)
return nil
}